Add support for multiple simultaneous database features by using macros.

Diesel requires the following changes:
- Separate connection and pool types per connection, the generate_connections! macro generates an enum with a variant per db type
- Separate migrations and schemas, these were always imported as one type depending on db feature, now they are all imported under different module names
- Separate model objects per connection, the db_object! macro generates one object for each connection with the diesel macros, a generic object, and methods to convert between the connection-specific and the generic ones
- Separate connection queries, the db_run! macro allows writing only one that gets compiled for all databases or multiple ones

Cargo.lock

@@ -152,6 +152,7 @@ dependencies = [
  "oath",
  "once_cell",
  "openssl",
+ "paste",
  "percent-encoding 2.1.0",
  "rand 0.7.3",
  "regex",
@@ -274,9 +275,9 @@ dependencies = [
 
 [[package]]
 name = "chrono"
-version = "0.4.13"
+version = "0.4.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c74d84029116787153e02106bf53e66828452a4b325cc8652b788b5967c0a0b6"
+checksum = "942f72db697d8767c22d46a598e01f2d3b475501ea43d0db4f16d90259182d0b"
 dependencies = [
  "num-integer",
  "num-traits",
@@ -295,9 +296,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "2.33.2"
+version = "2.33.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10040cdf04294b565d9e0319955430099ec3813a64c952b86a41200ad714ae48"
+checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
 dependencies = [
  "ansi_term",
  "atty",
@@ -781,14 +782,14 @@ dependencies = [
 
 [[package]]
 name = "handlebars"
-version = "3.3.0"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86dbc8a0746b08f363d2e00da48e6c9ceb75c198ac692d2715fcbb5bee74c87d"
+checksum = "5deefd4816fb852b1ff3cb48f6c41da67be2d0e1d20b26a7a3b076da11f064b1"
 dependencies = [
  "log 0.4.11",
  "pest",
  "pest_derive",
- "quick-error",
+ "quick-error 2.0.0",
  "serde",
  "serde_json",
  "walkdir",
@@ -1360,7 +1361,7 @@ dependencies = [
  "log 0.4.11",
  "mime 0.3.16",
  "mime_guess",
- "quick-error",
+ "quick-error 1.2.3",
  "rand 0.6.5",
  "safemem",
  "tempfile",
@@ -1519,9 +1520,9 @@ checksum = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
 
 [[package]]
 name = "once_cell"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
+checksum = "260e51e7efe62b592207e9e13a68e43692a7a279171d6ba57abd208bf23645ad"
 
 [[package]]
 name = "opaque-debug"
@@ -1628,6 +1629,12 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6ddc8e145de01d9180ac7b78b9676f95a9c2447f6a88b2c2a04702211bc5d71"
+
 [[package]]
 name = "pear"
 version = "0.1.4"
@@ -1873,6 +1880,12 @@ version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
+[[package]]
+name = "quick-error"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ac73b1112776fc109b2e61909bc46c7e1bf0d7f690ffb1676553acce16d5cda"
+
 [[package]]
 name = "quote"
 version = "0.6.13"

Cargo.toml

@@ -123,6 +123,9 @@ structopt = "0.3.16"
 # Logging panics to logfile instead stderr only
 backtrace = "0.3.50"
 
+# Macro ident concatenation
+paste = "1.0"
+
 [patch.crates-io]
 # Use newest ring
 rocket = { git = 'https://github.com/SergioBenitez/Rocket', rev = '1010f6a2a88fac899dec0cd2f642156908038a53' }

build.rs

@@ -2,12 +2,13 @@ use std::process::Command;
 use std::env;
 
 fn main() { 
-    #[cfg(all(feature = "sqlite", feature = "mysql"))]
+    // This allow using #[cfg(sqlite)] instead of #[cfg(feature = "sqlite")], which helps when trying to add them through macros
-    compile_error!("Can't enable both sqlite and mysql at the same time");
+    #[cfg(feature = "sqlite")]
-    #[cfg(all(feature = "sqlite", feature = "postgresql"))]
+    println!("cargo:rustc-cfg=sqlite");
-    compile_error!("Can't enable both sqlite and postgresql at the same time");
+    #[cfg(feature = "mysql")]
-    #[cfg(all(feature = "mysql", feature = "postgresql"))]
+    println!("cargo:rustc-cfg=mysql");
-    compile_error!("Can't enable both mysql and postgresql at the same time");
+    #[cfg(feature = "postgresql")]
+    println!("cargo:rustc-cfg=postgresql");
 
     #[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgresql")))]
     compile_error!("You need to enable one DB backend. To build with previous defaults do: cargo build --features sqlite");

src/api/admin.rs

@@ -15,7 +15,7 @@ use crate::{
     api::{ApiResult, EmptyResult, JsonResult},
     auth::{decode_admin, encode_jwt, generate_admin_claims, ClientIp},
     config::ConfigBuilder,
-    db::{backup_database, models::*, DbConn},
+    db::{backup_database, models::*, DbConn, DbConnType},
     error::{Error, MapResult},
     mail,
     util::get_display_size,
@@ -48,8 +48,12 @@ pub fn routes() -> Vec<Route> {
     ]
 }
 
-static CAN_BACKUP: Lazy<bool> =
+static CAN_BACKUP: Lazy<bool> = Lazy::new(|| {
-    Lazy::new(|| cfg!(feature = "sqlite") && Command::new("sqlite3").arg("-version").status().is_ok());
+    DbConnType::from_url(&CONFIG.database_url())
+        .map(|t| t == DbConnType::sqlite)
+        .unwrap_or(false)
+        && Command::new("sqlite3").arg("-version").status().is_ok()
+});
 
 #[get("/")]
 fn admin_disabled() -> &'static str {

src/config.rs

@@ -5,6 +5,7 @@ use once_cell::sync::Lazy;
 use reqwest::Url;
 
 use crate::{
+    db::DbConnType,
     error::Error,
     util::{get_env, get_env_bool},
 };
@@ -421,20 +422,9 @@ make_config! {
 }
 
 fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
-    let db_url = cfg.database_url.to_lowercase();
-    if cfg!(feature = "sqlite")
-        && (db_url.starts_with("mysql:") || db_url.starts_with("postgresql:") || db_url.starts_with("postgres:"))
-    {
-        err!("`DATABASE_URL` is meant for MySQL or Postgres, while this server is meant for SQLite")
-    }
 
-    if cfg!(feature = "mysql") && !db_url.starts_with("mysql:") {
+    // Validate connection URL is valid and DB feature is enabled
-        err!("`DATABASE_URL` should start with mysql: when using the MySQL server")
+    DbConnType::from_url(&cfg.database_url)?;
-    }
-
-    if cfg!(feature = "postgresql") && !(db_url.starts_with("postgresql:") || db_url.starts_with("postgres:")) {
-        err!("`DATABASE_URL` should start with postgresql: when using the PostgreSQL server")
-    }
 
     let dom = cfg.domain.to_lowercase();
     if !dom.starts_with("http://") && !dom.starts_with("https://") {

src/db/mod.rs

@@ -1,51 +1,203 @@
 use std::process::Command;
 
 use chrono::prelude::*;
-use diesel::{r2d2, r2d2::ConnectionManager, Connection as DieselConnection, ConnectionError};
+use diesel::r2d2::{ConnectionManager, Pool, PooledConnection};
 use rocket::{
     http::Status,
     request::{FromRequest, Outcome},
     Request, State,
 };
 
-use crate::{error::Error, CONFIG};
+use crate::{
+    error::{Error, MapResult},
+    CONFIG,
+};
 
-/// An alias to the database connection used
+#[cfg(sqlite)]
-#[cfg(feature = "sqlite")]
-type Connection = diesel::sqlite::SqliteConnection;
-#[cfg(feature = "mysql")]
-type Connection = diesel::mysql::MysqlConnection;
-#[cfg(feature = "postgresql")]
-type Connection = diesel::pg::PgConnection;
-
-/// An alias to the type for a pool of Diesel connections.
-type Pool = r2d2::Pool<ConnectionManager<Connection>>;
-
-/// Connection request guard type: a wrapper around an r2d2 pooled connection.
-pub struct DbConn(pub r2d2::PooledConnection<ConnectionManager<Connection>>);
-
-pub mod models;
-#[cfg(feature = "sqlite")]
 #[path = "schemas/sqlite/schema.rs"]
-pub mod schema;
+pub mod __sqlite_schema;
-#[cfg(feature = "mysql")]
+
+#[cfg(mysql)]
 #[path = "schemas/mysql/schema.rs"]
-pub mod schema;
+pub mod __mysql_schema;
-#[cfg(feature = "postgresql")]
+
+#[cfg(postgresql)]
 #[path = "schemas/postgresql/schema.rs"]
-pub mod schema;
+pub mod __postgresql_schema;
 
-/// Initializes a database pool.
-pub fn init_pool() -> Pool {
-    let manager = ConnectionManager::new(CONFIG.database_url());
 
-    r2d2::Pool::builder().build(manager).expect("Failed to create pool")
+// This is used to generate the main DbConn and DbPool enums, which contain one variant for each database supported
+macro_rules! generate_connections {
+    ( $( $name:ident: $ty:ty ),+ ) => {
+        #[allow(non_camel_case_types, dead_code)]
+        #[derive(Eq, PartialEq)]
+        pub enum DbConnType { $( $name, )+ }
+
+        #[allow(non_camel_case_types)]
+        pub enum DbConn { $( #[cfg($name)] $name(PooledConnection<ConnectionManager< $ty >>), )+ }
+
+        #[allow(non_camel_case_types)]
+        pub enum DbPool { $( #[cfg($name)] $name(Pool<ConnectionManager< $ty >>), )+ }
+
+        impl DbPool {
+            // For the given database URL, guess it's type, run migrations create pool and return it
+            pub fn from_config() -> Result<Self, Error> {
+                let url = CONFIG.database_url();
+                let conn_type = DbConnType::from_url(&url)?;
+
+                match conn_type { $(
+                    DbConnType::$name => {
+                        #[cfg($name)]
+                        {
+                            paste::paste!{ [< $name _migrations >]::run_migrations(); }
+                            let manager = ConnectionManager::new(&url);
+                            let pool = Pool::builder().build(manager).map_res("Failed to create pool")?;
+                            return Ok(Self::$name(pool));
+                        }
+                        #[cfg(not($name))]
+                        #[allow(unreachable_code)]
+                        return unreachable!("Trying to use a DB backend when it's feature is disabled");
+                    },
+                )+ }
+            }
+            // Get a connection from the pool
+            pub fn get(&self) -> Result<DbConn, Error> {
+                match self {  $(
+                    #[cfg($name)]
+                    Self::$name(p) => Ok(DbConn::$name(p.get().map_res("Error retrieving connection from pool")?)),
+                )+ }
+            }
+        }
+    };
 }
 
-pub fn get_connection() -> Result<Connection, ConnectionError> {
+generate_connections! {
-    Connection::establish(&CONFIG.database_url())
+    sqlite: diesel::sqlite::SqliteConnection,
+    mysql: diesel::mysql::MysqlConnection,
+    postgresql: diesel::pg::PgConnection
 }
 
+impl DbConnType {
+    pub fn from_url(url: &str) -> Result<DbConnType, Error> {
+        // Mysql
+        if url.starts_with("mysql:") {
+            #[cfg(mysql)]
+            return Ok(DbConnType::mysql);
+
+            #[cfg(not(mysql))]
+            err!("`DATABASE_URL` is a MySQL URL, but the 'mysql' feature is not enabled")
+
+        // Postgres
+        } else if url.starts_with("postgresql:") || url.starts_with("postgres:") {
+            #[cfg(postgresql)]
+            return Ok(DbConnType::postgresql);
+
+            #[cfg(not(postgresql))]
+            err!("`DATABASE_URL` is a PostgreSQL URL, but the 'postgresql' feature is not enabled")
+
+        //Sqlite
+        } else {
+            #[cfg(sqlite)]
+            return Ok(DbConnType::sqlite);
+
+            #[cfg(not(sqlite))]
+            err!("`DATABASE_URL` looks like a SQLite URL, but 'sqlite' feature is not enabled")
+        }
+    }
+}
+
+
+#[macro_export]
+macro_rules! db_run {
+    // Same for all dbs
+    ( $conn:ident: $body:block ) => {
+        db_run! { $conn: sqlite, mysql, postgresql $body }
+    };
+
+    // Different code for each db
+    ( $conn:ident: $( $($db:ident),+ $body:block )+ ) => {
+        #[allow(unused)] use diesel::prelude::*;
+        match $conn {
+            $($(
+                #[cfg($db)]
+                crate::db::DbConn::$db(ref $conn) => {
+                    paste::paste! { 
+                        #[allow(unused)] use crate::db::[<__ $db _schema>]::{self as schema, *};
+                        #[allow(unused)] use [<__ $db _model>]::*;
+                        #[allow(unused)] use crate::db::FromDb;  
+                    }
+                    $body
+                },
+            )+)+
+        }
+    };
+}
+
+
+pub trait FromDb {
+    type Output;
+    fn from_db(self) -> Self::Output;
+}
+
+// For each struct eg. Cipher, we create a CipherDb inside a module named __$db_model (where $db is sqlite, mysql or postgresql), 
+// to implement the Diesel traits. We also provide methods to convert between them and the basic structs. Later, that module will be auto imported when using db_run!
+#[macro_export]
+macro_rules! db_object {
+    ( $(
+        $( #[$attr:meta] )*
+        pub struct $name:ident {
+            $( $( #[$field_attr:meta] )* $vis:vis $field:ident : $typ:ty ),+
+            $(,)?
+        }
+    )+ ) => { 
+        // Create the normal struct, without attributes
+        $( pub struct $name { $( /*$( #[$field_attr] )**/ $vis $field : $typ, )+ } )+
+        
+        #[cfg(sqlite)]
+        pub mod __sqlite_model     { $( db_object! { @db sqlite     |  $( #[$attr] )* | $name |  $( $( #[$field_attr] )* $field : $typ ),+ } )+ }
+        #[cfg(mysql)]
+        pub mod __mysql_model      { $( db_object! { @db mysql      |  $( #[$attr] )* | $name |  $( $( #[$field_attr] )* $field : $typ ),+ } )+ }
+        #[cfg(postgresql)]
+        pub mod __postgresql_model { $( db_object! { @db postgresql |  $( #[$attr] )* | $name |  $( $( #[$field_attr] )* $field : $typ ),+ } )+ }
+    };
+
+    ( @db $db:ident | $( #[$attr:meta] )* | $name:ident | $( $( #[$field_attr:meta] )* $vis:vis $field:ident : $typ:ty),+) => {
+        paste::paste! {
+            #[allow(unused)] use super::*;
+            #[allow(unused)] use diesel::prelude::*;
+            #[allow(unused)] use crate::db::[<__ $db _schema>]::*;
+
+            $( #[$attr] )*
+            pub struct [<$name Db>] { $(
+                $( #[$field_attr] )* $vis $field : $typ,
+            )+ }
+
+            impl [<$name Db>] {
+                #[inline(always)] pub fn from_db(self) -> super::$name { super::$name { $( $field: self.$field, )+ } }
+                #[inline(always)] pub fn to_db(x: &super::$name) -> Self { Self { $( $field: x.$field.clone(), )+ } }
+            }
+
+            impl crate::db::FromDb for [<$name Db>] {
+                type Output = super::$name;
+                #[inline(always)] fn from_db(self) -> Self::Output { super::$name { $( $field: self.$field, )+ } }
+            }
+
+            impl crate::db::FromDb for Vec<[<$name Db>]> {
+                type Output = Vec<super::$name>;
+                #[inline(always)] fn from_db(self) -> Self::Output { self.into_iter().map(crate::db::FromDb::from_db).collect() }
+            }
+
+            impl crate::db::FromDb for Option<[<$name Db>]> {
+                type Output = Option<super::$name>;
+                #[inline(always)] fn from_db(self) -> Self::Output { self.map(crate::db::FromDb::from_db) }
+            }
+        }
+    };
+}
+
+// Reexport the models, needs to be after the macros are defined so it can access them
+pub mod models;
+
 /// Creates a back-up of the database using sqlite3
 pub fn backup_database() -> Result<(), Error> {
     use std::path::Path;
@@ -73,18 +225,99 @@ impl<'a, 'r> FromRequest<'a, 'r> for DbConn {
 
     fn from_request(request: &'a Request<'r>) -> Outcome<DbConn, ()> {
         // https://github.com/SergioBenitez/Rocket/commit/e3c1a4ad3ab9b840482ec6de4200d30df43e357c
-        let pool = try_outcome!(request.guard::<State<Pool>>());
+        let pool = try_outcome!(request.guard::<State<DbPool>>());
         match pool.get() {
-            Ok(conn) => Outcome::Success(DbConn(conn)),
+            Ok(conn) => Outcome::Success(conn),
             Err(_) => Outcome::Failure((Status::ServiceUnavailable, ())),
         }
     }
 }
 
-// For the convenience of using an &DbConn as a &Database.
+// Embed the migrations from the migrations folder into the application
-impl std::ops::Deref for DbConn {
+// This way, the program automatically migrates the database to the latest version
-    type Target = Connection;
+// https://docs.rs/diesel_migrations/*/diesel_migrations/macro.embed_migrations.html
-    fn deref(&self) -> &Self::Target {
+#[cfg(sqlite)]
-        &self.0
+mod sqlite_migrations {
+    #[allow(unused_imports)]
+    embed_migrations!("migrations/sqlite");
+
+    pub fn run_migrations() {
+        // Make sure the directory exists
+        let url = crate::CONFIG.database_url();
+        let path = std::path::Path::new(&url);
+
+        if let Some(parent) = path.parent() {
+            if std::fs::create_dir_all(parent).is_err() {
+                error!("Error creating database directory");
+                std::process::exit(1);
+            }
+        }
+
+        use diesel::{Connection, RunQueryDsl};
+        // Make sure the database is up to date (create if it doesn't exist, or run the migrations)
+        let connection =
+            diesel::sqlite::SqliteConnection::establish(&crate::CONFIG.database_url()).expect("Can't connect to DB");
+        // Disable Foreign Key Checks during migration
+        
+        // Scoped to a connection.
+        diesel::sql_query("PRAGMA foreign_keys = OFF")
+            .execute(&connection)
+            .expect("Failed to disable Foreign Key Checks during migrations");
+
+        // Turn on WAL in SQLite
+        if crate::CONFIG.enable_db_wal() {
+            diesel::sql_query("PRAGMA journal_mode=wal")
+                .execute(&connection)
+                .expect("Failed to turn on WAL");
+        }
+
+        embedded_migrations::run_with_output(&connection, &mut std::io::stdout()).expect("Can't run migrations");
+    }
+}
+
+#[cfg(mysql)]
+mod mysql_migrations {
+    #[allow(unused_imports)]
+    embed_migrations!("migrations/mysql");
+
+    pub fn run_migrations() {
+        use diesel::{Connection, RunQueryDsl};
+        // Make sure the database is up to date (create if it doesn't exist, or run the migrations)
+        let connection =
+            diesel::mysql::MysqlConnection::establish(&crate::CONFIG.database_url()).expect("Can't connect to DB");
+        // Disable Foreign Key Checks during migration
+
+        // Scoped to a connection/session.
+        diesel::sql_query("SET FOREIGN_KEY_CHECKS = 0")
+            .execute(&connection)
+            .expect("Failed to disable Foreign Key Checks during migrations");
+
+        embedded_migrations::run_with_output(&connection, &mut std::io::stdout()).expect("Can't run migrations");
+    }
+}
+
+#[cfg(postgresql)]
+mod postgresql_migrations {
+    #[allow(unused_imports)]
+    embed_migrations!("migrations/postgresql");
+
+    pub fn run_migrations() {
+        use diesel::{Connection, RunQueryDsl};
+        // Make sure the database is up to date (create if it doesn't exist, or run the migrations)
+        let connection =
+            diesel::pg::PgConnection::establish(&crate::CONFIG.database_url()).expect("Can't connect to DB");
+        // Disable Foreign Key Checks during migration
+        
+        // FIXME: Per https://www.postgresql.org/docs/12/sql-set-constraints.html,
+        // "SET CONSTRAINTS sets the behavior of constraint checking within the
+        // current transaction", so this setting probably won't take effect for
+        // any of the migrations since it's being run outside of a transaction.
+        // Migrations that need to disable foreign key checks should run this
+        // from within the migration script itself.
+        diesel::sql_query("SET CONSTRAINTS ALL DEFERRED")
+            .execute(&connection)
+            .expect("Failed to disable Foreign Key Checks during migrations");
+
+        embedded_migrations::run_with_output(&connection, &mut std::io::stdout()).expect("Can't run migrations");
     }
 }

src/db/models/attachment.rs

@@ -3,10 +3,11 @@ use serde_json::Value;
 use super::Cipher;
 use crate::CONFIG;
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "attachments"]
     #[changeset_options(treat_none_as_null="true")]
-#[belongs_to(Cipher, foreign_key = "cipher_uuid")]
+    #[belongs_to(super::Cipher, foreign_key = "cipher_uuid")]
     #[primary_key(id)]
     pub struct Attachment {
         pub id: String,
@@ -15,6 +16,7 @@ pub struct Attachment {
         pub file_size: i32,
         pub akey: Option<String>,
     }
+}
 
 /// Local methods
 impl Attachment {
@@ -50,43 +52,46 @@ impl Attachment {
     }
 }
 
-use crate::db::schema::{attachments, ciphers};
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
 
 /// Database methods
 impl Attachment {
-    #[cfg(feature = "postgresql")]
+
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
-        diesel::insert_into(attachments::table)
+        db_run! { conn:
-            .values(self)
+            sqlite, mysql {
-            .on_conflict(attachments::id)
+                diesel::replace_into(attachments::table)
-            .do_update()
+                    .values(AttachmentDb::to_db(self))
-            .set(self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving attachment")
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = AttachmentDb::to_db(self);
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
+                diesel::insert_into(attachments::table)
-        diesel::replace_into(attachments::table)
+                    .values(&value)
-            .values(self)
+                    .on_conflict(attachments::id)
-            .execute(&**conn)
+                    .do_update()
+                    .set(&value)
+                    .execute(conn)
                     .map_res("Error saving attachment")
             }
+        }
+    }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             crate::util::retry(
-            || diesel::delete(attachments::table.filter(attachments::id.eq(&self.id))).execute(&**conn),
+                || diesel::delete(attachments::table.filter(attachments::id.eq(&self.id))).execute(conn),
                 10,
             )
             .map_res("Error deleting attachment")?;
 
             crate::util::delete_file(&self.get_file_path())?;
             Ok(())
+        }}
     }
 
     pub fn delete_all_by_cipher(cipher_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -97,67 +102,78 @@ impl Attachment {
     }
 
     pub fn find_by_id(id: &str, conn: &DbConn) -> Option<Self> {
-        let id = id.to_lowercase();
+        db_run! { conn: {
-
             attachments::table
-            .filter(attachments::id.eq(id))
+                .filter(attachments::id.eq(id.to_lowercase()))
-            .first::<Self>(&**conn)
+                .first::<AttachmentDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_cipher(cipher_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             attachments::table
                 .filter(attachments::cipher_uuid.eq(cipher_uuid))
-            .load::<Self>(&**conn)
+                .load::<AttachmentDb>(conn)
                 .expect("Error loading attachments")
+                .from_db()
+        }}
     }
 
     pub fn find_by_ciphers(cipher_uuids: Vec<String>, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             attachments::table
                 .filter(attachments::cipher_uuid.eq_any(cipher_uuids))
-            .load::<Self>(&**conn)
+                .load::<AttachmentDb>(conn)
                 .expect("Error loading attachments")
+                .from_db()
+        }}
     }
 
     pub fn size_by_user(user_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! { conn: {
             let result: Option<i64> = attachments::table
                 .left_join(ciphers::table.on(ciphers::uuid.eq(attachments::cipher_uuid)))
                 .filter(ciphers::user_uuid.eq(user_uuid))
                 .select(diesel::dsl::sum(attachments::file_size))
-            .first(&**conn)
+                .first(conn)
                 .expect("Error loading user attachment total size");
-
             result.unwrap_or(0)
+        }}
     }
 
     pub fn count_by_user(user_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! { conn: {
             attachments::table
                 .left_join(ciphers::table.on(ciphers::uuid.eq(attachments::cipher_uuid)))
                 .filter(ciphers::user_uuid.eq(user_uuid))
                 .count()
-            .first::<i64>(&**conn)
+                .first(conn)
-            .ok()
                 .unwrap_or(0)
+        }}
     }
 
     pub fn size_by_org(org_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! { conn: {
             let result: Option<i64> = attachments::table
                 .left_join(ciphers::table.on(ciphers::uuid.eq(attachments::cipher_uuid)))
                 .filter(ciphers::organization_uuid.eq(org_uuid))
                 .select(diesel::dsl::sum(attachments::file_size))
-            .first(&**conn)
+                .first(conn)
                 .expect("Error loading user attachment total size");
-
             result.unwrap_or(0)
+        }}
     }
 
     pub fn count_by_org(org_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! { conn: {
             attachments::table
                 .left_join(ciphers::table.on(ciphers::uuid.eq(attachments::cipher_uuid)))
                 .filter(ciphers::organization_uuid.eq(org_uuid))
                 .count()
-            .first(&**conn)
+                .first(conn)
-            .ok()
                 .unwrap_or(0)
+        }}
     }
 }

src/db/models/cipher.rs

@@ -5,6 +5,7 @@ use super::{
     Attachment, CollectionCipher, FolderCipher, Organization, User, UserOrgStatus, UserOrgType, UserOrganization,
 };
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "ciphers"]
     #[changeset_options(treat_none_as_null="true")]
@@ -35,6 +36,7 @@ pub struct Cipher {
         pub password_history: Option<String>,
         pub deleted_at: Option<NaiveDateTime>,
     }
+}
 
 /// Local methods
 impl Cipher {
@@ -62,9 +64,7 @@ impl Cipher {
     }
 }
 
-use crate::db::schema::*;
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
@@ -81,7 +81,7 @@ impl Cipher {
         let password_history_json = self.password_history.as_ref().and_then(|s| serde_json::from_str(s).ok()).unwrap_or(Value::Null);
 
         let (read_only, hide_passwords) =
-            match self.get_access_restrictions(&user_uuid, &conn) {
+            match self.get_access_restrictions(&user_uuid, conn) {
                 Some((ro, hp)) => (ro, hp),
                 None => {
                     error!("Cipher ownership assertion failure");
@@ -125,14 +125,14 @@ impl Cipher {
             "Type": self.atype,
             "RevisionDate": format_date(&self.updated_at),
             "DeletedDate": self.deleted_at.map_or(Value::Null, |d| Value::String(format_date(&d))),
-            "FolderId": self.get_folder_uuid(&user_uuid, &conn),
+            "FolderId": self.get_folder_uuid(&user_uuid, conn),
-            "Favorite": self.is_favorite(&user_uuid, &conn),
+            "Favorite": self.is_favorite(&user_uuid, conn),
             "OrganizationId": self.organization_uuid,
             "Attachments": attachments_json,
             "OrganizationUseTotp": true,
 
             // This field is specific to the cipherDetails type.
-            "CollectionIds": self.get_collections(user_uuid, &conn),
+            "CollectionIds": self.get_collections(user_uuid, conn),
 
             "Name": self.name,
             "Notes": self.notes,
@@ -183,41 +183,42 @@ impl Cipher {
         user_uuids
     }
 
-    #[cfg(feature = "postgresql")]
     pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
         self.update_users_revision(conn);
         self.updated_at = Utc::now().naive_utc();
         
-        diesel::insert_into(ciphers::table)
+        db_run! { conn: 
-            .values(&*self)
+            sqlite, mysql {
-            .on_conflict(ciphers::uuid)
+                diesel::replace_into(ciphers::table)
-            .do_update()
+                    .values(CipherDb::to_db(self))
-            .set(&*self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving cipher")
                 }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = CipherDb::to_db(self);
-    pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
+                diesel::insert_into(ciphers::table)
-        self.update_users_revision(conn);
+                    .values(&value)
-        self.updated_at = Utc::now().naive_utc();
+                    .on_conflict(ciphers::uuid)
-
+                    .do_update()
-        diesel::replace_into(ciphers::table)
+                    .set(&value)
-            .values(&*self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving cipher")
             }
+        }
+    }
 
     pub fn delete(&self, conn: &DbConn) -> EmptyResult {
         self.update_users_revision(conn);
 
-        FolderCipher::delete_all_by_cipher(&self.uuid, &conn)?;
+        FolderCipher::delete_all_by_cipher(&self.uuid, conn)?;
-        CollectionCipher::delete_all_by_cipher(&self.uuid, &conn)?;
+        CollectionCipher::delete_all_by_cipher(&self.uuid, conn)?;
-        Attachment::delete_all_by_cipher(&self.uuid, &conn)?;
+        Attachment::delete_all_by_cipher(&self.uuid, conn)?;
 
+        db_run! { conn: {
             diesel::delete(ciphers::table.filter(ciphers::uuid.eq(&self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting cipher")
+        }}
     }
 
     pub fn delete_all_by_organization(org_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -235,28 +236,28 @@ impl Cipher {
     }
 
     pub fn move_to_folder(&self, folder_uuid: Option<String>, user_uuid: &str, conn: &DbConn) -> EmptyResult {
-        User::update_uuid_revision(user_uuid, &conn);
+        User::update_uuid_revision(user_uuid, conn);
 
-        match (self.get_folder_uuid(&user_uuid, &conn), folder_uuid) {
+        match (self.get_folder_uuid(&user_uuid, conn), folder_uuid) {
             // No changes
             (None, None) => Ok(()),
             (Some(ref old), Some(ref new)) if old == new => Ok(()),
 
             // Add to folder
-            (None, Some(new)) => FolderCipher::new(&new, &self.uuid).save(&conn),
+            (None, Some(new)) => FolderCipher::new(&new, &self.uuid).save(conn),
 
             // Remove from folder
-            (Some(old), None) => match FolderCipher::find_by_folder_and_cipher(&old, &self.uuid, &conn) {
+            (Some(old), None) => match FolderCipher::find_by_folder_and_cipher(&old, &self.uuid, conn) {
-                Some(old) => old.delete(&conn),
+                Some(old) => old.delete(conn),
                 None => err!("Couldn't move from previous folder"),
             },
 
             // Move to another folder
             (Some(old), Some(new)) => {
-                if let Some(old) = FolderCipher::find_by_folder_and_cipher(&old, &self.uuid, &conn) {
+                if let Some(old) = FolderCipher::find_by_folder_and_cipher(&old, &self.uuid, conn) {
-                    old.delete(&conn)?;
+                    old.delete(conn)?;
                 }
-                FolderCipher::new(&new, &self.uuid).save(&conn)
+                FolderCipher::new(&new, &self.uuid).save(conn)
             }
         }
     }
@@ -269,7 +270,7 @@ impl Cipher {
     /// Returns whether this cipher is owned by an org in which the user has full access.
     pub fn is_in_full_access_org(&self, user_uuid: &str, conn: &DbConn) -> bool {
         if let Some(ref org_uuid) = self.organization_uuid {
-            if let Some(user_org) = UserOrganization::find_by_user_and_org(&user_uuid, &org_uuid, &conn) {
+            if let Some(user_org) = UserOrganization::find_by_user_and_org(&user_uuid, &org_uuid, conn) {
                 return user_org.has_full_access();
             }
         }
@@ -290,6 +291,7 @@ impl Cipher {
             return Some((false, false));
         }
 
+        db_run! {conn: {
             // Check whether this cipher is in any collections accessible to the
             // user. If so, retrieve the access flags for each collection.
             let query = ciphers::table
@@ -309,7 +311,7 @@ impl Cipher {
             // and `hide_passwords` columns. This could ideally be done as part
             // of the query, but Diesel doesn't support a max() or bool_or()
             // function on booleans and this behavior isn't portable anyway.
-        if let Some(vec) = query.load::<(bool, bool)>(&**conn).ok() {
+            if let Some(vec) = query.load::<(bool, bool)>(conn).ok() {
                 let mut read_only = false;
                 let mut hide_passwords = false;
                 for (ro, hp) in vec.iter() {
@@ -322,6 +324,7 @@ impl Cipher {
                 // This cipher isn't in any collections accessible to the user.
                 None
             }
+        }}
     }
 
     pub fn is_write_accessible_to_user(&self, user_uuid: &str, conn: &DbConn) -> bool {
@@ -337,12 +340,14 @@ impl Cipher {
 
     // Returns whether this cipher is a favorite of the specified user.
     pub fn is_favorite(&self, user_uuid: &str, conn: &DbConn) -> bool {
+        db_run!{ conn: {
             let query = favorites::table
                 .filter(favorites::user_uuid.eq(user_uuid))
                 .filter(favorites::cipher_uuid.eq(&self.uuid))
                 .count();
 
-        query.first::<i64>(&**conn).ok().unwrap_or(0) != 0
+            query.first::<i64>(conn).ok().unwrap_or(0) != 0
+        }}
     }
 
     // Updates whether this cipher is a favorite of the specified user.
@@ -356,23 +361,27 @@ impl Cipher {
         match (old, new) {
             (false, true) => {
                 User::update_uuid_revision(user_uuid, &conn);
+                db_run!{ conn: {
                     diesel::insert_into(favorites::table)
                         .values((
                             favorites::user_uuid.eq(user_uuid),
                             favorites::cipher_uuid.eq(&self.uuid),
                         ))
-                    .execute(&**conn)
+                        .execute(conn)
                         .map_res("Error adding favorite")
+                    }}
             }
             (true, false) => {
                 User::update_uuid_revision(user_uuid, &conn);
+                db_run!{ conn: {
                     diesel::delete(
                         favorites::table
                             .filter(favorites::user_uuid.eq(user_uuid))
                             .filter(favorites::cipher_uuid.eq(&self.uuid))
                     )
-                .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error removing favorite")
+                }}
             }
             // Otherwise, the favorite status is already what it should be.
             _ => Ok(())
@@ -380,24 +389,30 @@ impl Cipher {
     }
 
     pub fn get_folder_uuid(&self, user_uuid: &str, conn: &DbConn) -> Option<String> {
+        db_run! {conn: {
             folders_ciphers::table
                 .inner_join(folders::table)
                 .filter(folders::user_uuid.eq(&user_uuid))
                 .filter(folders_ciphers::cipher_uuid.eq(&self.uuid))
                 .select(folders_ciphers::folder_uuid)
-            .first::<String>(&**conn)
+                .first::<String>(conn)
                 .ok()
+        }}
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! {conn: {
             ciphers::table
                 .filter(ciphers::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<CipherDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     // Find all ciphers accessible to user
     pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! {conn: {
             ciphers::table
                 .left_join(users_organizations::table.on(
                     ciphers::organization_uuid.eq(users_organizations::org_uuid.nullable()).and(
@@ -423,48 +438,60 @@ impl Cipher {
                 ))
                 .select(ciphers::all_columns)
                 .distinct()
-        .load::<Self>(&**conn).expect("Error loading ciphers")
+                .load::<CipherDb>(conn).expect("Error loading ciphers").from_db()
+        }}
     }
 
     // Find all ciphers directly owned by user
     pub fn find_owned_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! {conn: {
             ciphers::table
                 .filter(ciphers::user_uuid.eq(user_uuid))
-        .load::<Self>(&**conn).expect("Error loading ciphers")
+                .load::<CipherDb>(conn).expect("Error loading ciphers").from_db()
+        }}
     }
 
     pub fn count_owned_by_user(user_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! {conn: {
             ciphers::table
                 .filter(ciphers::user_uuid.eq(user_uuid))
                 .count()
-        .first::<i64>(&**conn)
+                .first::<i64>(conn)
                 .ok()
                 .unwrap_or(0)
+        }}
     }
 
     pub fn find_by_org(org_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! {conn: {
             ciphers::table
                 .filter(ciphers::organization_uuid.eq(org_uuid))
-            .load::<Self>(&**conn).expect("Error loading ciphers")
+                .load::<CipherDb>(conn).expect("Error loading ciphers").from_db()
+        }}
     }
 
     pub fn count_by_org(org_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! {conn: {
             ciphers::table
                 .filter(ciphers::organization_uuid.eq(org_uuid))
                 .count()
-            .first::<i64>(&**conn)
+                .first::<i64>(conn)
                 .ok()
                 .unwrap_or(0)
+        }}
     }
 
     pub fn find_by_folder(folder_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! {conn: {
             folders_ciphers::table.inner_join(ciphers::table)
                 .filter(folders_ciphers::folder_uuid.eq(folder_uuid))
                 .select(ciphers::all_columns)
-            .load::<Self>(&**conn).expect("Error loading ciphers")
+                .load::<CipherDb>(conn).expect("Error loading ciphers").from_db()
+        }}
     }
 
     pub fn get_collections(&self, user_id: &str, conn: &DbConn) -> Vec<String> {
+        db_run! {conn: {
             ciphers_collections::table
             .inner_join(collections::table.on(
                 collections::uuid.eq(ciphers_collections::collection_uuid)
@@ -486,6 +513,7 @@ impl Cipher {
                 )
             ))
             .select(ciphers_collections::collection_uuid)
-        .load::<String>(&**conn).unwrap_or_default()
+            .load::<String>(conn).unwrap_or_default()
+        }}
     }
 }

src/db/models/collection.rs

@@ -1,7 +1,8 @@
 use serde_json::Value;
 
-use super::{Organization, UserOrgStatus, UserOrgType, UserOrganization};
+use super::{Organization, UserOrgStatus, UserOrgType, UserOrganization, User, Cipher};
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "collections"]
     #[belongs_to(Organization, foreign_key = "org_uuid")]
@@ -12,6 +13,29 @@ pub struct Collection {
         pub name: String,
     }
 
+    #[derive(Debug, Identifiable, Queryable, Insertable, Associations)]
+    #[table_name = "users_collections"]
+    #[belongs_to(User, foreign_key = "user_uuid")]
+    #[belongs_to(Collection, foreign_key = "collection_uuid")]
+    #[primary_key(user_uuid, collection_uuid)]
+    pub struct CollectionUser {
+        pub user_uuid: String,
+        pub collection_uuid: String,
+        pub read_only: bool,
+        pub hide_passwords: bool,
+    }
+
+    #[derive(Debug, Identifiable, Queryable, Insertable, Associations)]
+    #[table_name = "ciphers_collections"]
+    #[belongs_to(Cipher, foreign_key = "cipher_uuid")]
+    #[belongs_to(Collection, foreign_key = "collection_uuid")]
+    #[primary_key(cipher_uuid, collection_uuid)]
+    pub struct CollectionCipher {
+        pub cipher_uuid: String,
+        pub collection_uuid: String,
+    }
+}
+
 /// Local methods
 impl Collection {
     pub fn new(org_uuid: String, name: String) -> Self {
@@ -33,46 +57,46 @@ impl Collection {
     }
 }
 
-use crate::db::schema::*;
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
 
 /// Database methods
 impl Collection {
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
         self.update_users_revision(conn);
 
-        diesel::insert_into(collections::table)
+        db_run! { conn: 
-            .values(self)
+            sqlite, mysql {
-            .on_conflict(collections::uuid)
+                diesel::replace_into(collections::table)
-            .do_update()
+                    .values(CollectionDb::to_db(self))
-            .set(self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving collection")
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = CollectionDb::to_db(self);
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
+                diesel::insert_into(collections::table)
-        self.update_users_revision(conn);
+                    .values(&value)
-
+                    .on_conflict(collections::uuid)
-        diesel::replace_into(collections::table)
+                    .do_update()
-            .values(self)
+                    .set(&value)
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error saving collection")  
             }
+        }
+    }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
         self.update_users_revision(conn);
         CollectionCipher::delete_all_by_collection(&self.uuid, &conn)?;
         CollectionUser::delete_all_by_collection(&self.uuid, &conn)?;
 
+        db_run! { conn: {
             diesel::delete(collections::table.filter(collections::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting collection")
+        }}
     }
 
     pub fn delete_all_by_organization(org_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -91,13 +115,17 @@ impl Collection {
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             collections::table
                 .filter(collections::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<CollectionDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_user_uuid(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             collections::table
             .left_join(users_collections::table.on(
                 users_collections::collection_uuid.eq(collections::uuid).and(
@@ -117,7 +145,8 @@ impl Collection {
                     users_organizations::access_all.eq(true) // access_all in Organization
                 )
             ).select(collections::all_columns)
-        .load::<Self>(&**conn).expect("Error loading collections")
+            .load::<CollectionDb>(conn).expect("Error loading collections").from_db()
+        }}
     }
 
     pub fn find_by_organization_and_user_uuid(org_uuid: &str, user_uuid: &str, conn: &DbConn) -> Vec<Self> {
@@ -128,22 +157,29 @@ impl Collection {
     }
 
     pub fn find_by_organization(org_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             collections::table
                 .filter(collections::org_uuid.eq(org_uuid))
-            .load::<Self>(&**conn)
+                .load::<CollectionDb>(conn)
                 .expect("Error loading collections")
+                .from_db()
+        }}
     }
 
     pub fn find_by_uuid_and_org(uuid: &str, org_uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             collections::table
                 .filter(collections::uuid.eq(uuid))
                 .filter(collections::org_uuid.eq(org_uuid))
                 .select(collections::all_columns)
-            .first::<Self>(&**conn)
+                .first::<CollectionDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_uuid_and_user(uuid: &str, user_uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             collections::table
             .left_join(users_collections::table.on(
                 users_collections::collection_uuid.eq(collections::uuid).and(
@@ -163,7 +199,9 @@ impl Collection {
                     )
                 )
             ).select(collections::all_columns)
-        .first::<Self>(&**conn).ok()
+            .first::<CollectionDb>(conn).ok()
+            .from_db()
+        }}
     }
 
     pub fn is_writable_by_user(&self, user_uuid: &str, conn: &DbConn) -> bool {
@@ -173,51 +211,54 @@ impl Collection {
                 if user_org.access_all {
                     true
                 } else {
+                    db_run! { conn: {
                         users_collections::table
                             .inner_join(collections::table)
                             .filter(users_collections::collection_uuid.eq(&self.uuid))
                             .filter(users_collections::user_uuid.eq(&user_uuid))
                             .filter(users_collections::read_only.eq(false))
                             .select(collections::all_columns)
-                        .first::<Self>(&**conn)
+                            .first::<CollectionDb>(conn)
                             .ok()
                             .is_some() // Read only or no access to collection
+                    }}
                 }
             }
         }
     }
 }
 
-use super::User;
-
-#[derive(Debug, Identifiable, Queryable, Insertable, Associations)]
-#[table_name = "users_collections"]
-#[belongs_to(User, foreign_key = "user_uuid")]
-#[belongs_to(Collection, foreign_key = "collection_uuid")]
-#[primary_key(user_uuid, collection_uuid)]
-pub struct CollectionUser {
-    pub user_uuid: String,
-    pub collection_uuid: String,
-    pub read_only: bool,
-    pub hide_passwords: bool,
-}
-
 /// Database methods
 impl CollectionUser {
     pub fn find_by_organization_and_user_uuid(org_uuid: &str, user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_collections::table
                 .filter(users_collections::user_uuid.eq(user_uuid))
                 .inner_join(collections::table.on(collections::uuid.eq(users_collections::collection_uuid)))
                 .filter(collections::org_uuid.eq(org_uuid))
                 .select(users_collections::all_columns)
-            .load::<Self>(&**conn)
+                .load::<CollectionUserDb>(conn)
                 .expect("Error loading users_collections")
+                .from_db()
+        }}
     }
 
-    #[cfg(feature = "postgresql")]
     pub fn save(user_uuid: &str, collection_uuid: &str, read_only: bool, hide_passwords: bool, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&user_uuid, conn);
 
+        db_run! { conn: 
+            sqlite, mysql {
+                diesel::replace_into(users_collections::table)
+                    .values((
+                        users_collections::user_uuid.eq(user_uuid),
+                        users_collections::collection_uuid.eq(collection_uuid),
+                        users_collections::read_only.eq(read_only),
+                        users_collections::hide_passwords.eq(hide_passwords),
+                    ))
+                    .execute(conn)
+                    .map_res("Error adding user to collection")
+            }
+            postgresql {
                 diesel::insert_into(users_collections::table)
                     .values((
                         users_collections::user_uuid.eq(user_uuid),
@@ -231,52 +272,47 @@ impl CollectionUser {
                         users_collections::read_only.eq(read_only),
                         users_collections::hide_passwords.eq(hide_passwords),
                     ))
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error adding user to collection")
             }
-
+        }
-    #[cfg(not(feature = "postgresql"))]
-    pub fn save(user_uuid: &str, collection_uuid: &str, read_only: bool, hide_passwords: bool, conn: &DbConn) -> EmptyResult {
-        User::update_uuid_revision(&user_uuid, conn);
-
-        diesel::replace_into(users_collections::table)
-            .values((
-                users_collections::user_uuid.eq(user_uuid),
-                users_collections::collection_uuid.eq(collection_uuid),
-                users_collections::read_only.eq(read_only),
-                users_collections::hide_passwords.eq(hide_passwords),
-            ))
-            .execute(&**conn)
-            .map_res("Error adding user to collection")
     }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&self.user_uuid, conn);
 
+        db_run! { conn: {
             diesel::delete(
                 users_collections::table
                     .filter(users_collections::user_uuid.eq(&self.user_uuid))
                     .filter(users_collections::collection_uuid.eq(&self.collection_uuid)),
             )
-        .execute(&**conn)
+            .execute(conn)
             .map_res("Error removing user from collection")
+        }}
     }
 
     pub fn find_by_collection(collection_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_collections::table
                 .filter(users_collections::collection_uuid.eq(collection_uuid))
                 .select(users_collections::all_columns)
-            .load::<Self>(&**conn)
+                .load::<CollectionUserDb>(conn)
                 .expect("Error loading users_collections")
+                .from_db()
+        }}
     }
 
     pub fn find_by_collection_and_user(collection_uuid: &str, user_uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             users_collections::table
                 .filter(users_collections::collection_uuid.eq(collection_uuid))
                 .filter(users_collections::user_uuid.eq(user_uuid))
                 .select(users_collections::all_columns)
-            .first::<Self>(&**conn)
+                .first::<CollectionUserDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn delete_all_by_collection(collection_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -286,37 +322,40 @@ impl CollectionUser {
                 User::update_uuid_revision(&collection.user_uuid, conn);
             });
 
+        db_run! { conn: {
             diesel::delete(users_collections::table.filter(users_collections::collection_uuid.eq(collection_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting users from collection")
+        }}
     }
 
     pub fn delete_all_by_user(user_uuid: &str, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&user_uuid, conn);
 
+        db_run! { conn: {
             diesel::delete(users_collections::table.filter(users_collections::user_uuid.eq(user_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing user from collections")
+        }}
     }
 }
 
-use super::Cipher;
-
-#[derive(Debug, Identifiable, Queryable, Insertable, Associations)]
-#[table_name = "ciphers_collections"]
-#[belongs_to(Cipher, foreign_key = "cipher_uuid")]
-#[belongs_to(Collection, foreign_key = "collection_uuid")]
-#[primary_key(cipher_uuid, collection_uuid)]
-pub struct CollectionCipher {
-    pub cipher_uuid: String,
-    pub collection_uuid: String,
-}
-
 /// Database methods
 impl CollectionCipher {
-    #[cfg(feature = "postgresql")]
     pub fn save(cipher_uuid: &str, collection_uuid: &str, conn: &DbConn) -> EmptyResult {
         Self::update_users_revision(&collection_uuid, conn);
+
+        db_run! { conn: 
+            sqlite, mysql {
+                diesel::replace_into(ciphers_collections::table)
+                    .values((
+                        ciphers_collections::cipher_uuid.eq(cipher_uuid),
+                        ciphers_collections::collection_uuid.eq(collection_uuid),
+                    ))
+                    .execute(conn)
+                    .map_res("Error adding cipher to collection")
+            }
+            postgresql {
                 diesel::insert_into(ciphers_collections::table)
                     .values((
                         ciphers_collections::cipher_uuid.eq(cipher_uuid),
@@ -324,43 +363,40 @@ impl CollectionCipher {
                     ))
                     .on_conflict((ciphers_collections::cipher_uuid, ciphers_collections::collection_uuid))
                     .do_nothing()
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error adding cipher to collection")
             }
-
+        }
-    #[cfg(not(feature = "postgresql"))]
-    pub fn save(cipher_uuid: &str, collection_uuid: &str, conn: &DbConn) -> EmptyResult {
-        Self::update_users_revision(&collection_uuid, conn);
-        diesel::replace_into(ciphers_collections::table)
-            .values((
-                ciphers_collections::cipher_uuid.eq(cipher_uuid),
-                ciphers_collections::collection_uuid.eq(collection_uuid),
-            ))
-            .execute(&**conn)
-            .map_res("Error adding cipher to collection")
     }
 
     pub fn delete(cipher_uuid: &str, collection_uuid: &str, conn: &DbConn) -> EmptyResult {
         Self::update_users_revision(&collection_uuid, conn);
+        
+        db_run! { conn: {
             diesel::delete(
                 ciphers_collections::table
                     .filter(ciphers_collections::cipher_uuid.eq(cipher_uuid))
                     .filter(ciphers_collections::collection_uuid.eq(collection_uuid)),
             )
-        .execute(&**conn)
+            .execute(conn)
             .map_res("Error deleting cipher from collection")
+        }}
     }
 
     pub fn delete_all_by_cipher(cipher_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(ciphers_collections::table.filter(ciphers_collections::cipher_uuid.eq(cipher_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing cipher from collections")
+        }}
     }
 
     pub fn delete_all_by_collection(collection_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(ciphers_collections::table.filter(ciphers_collections::collection_uuid.eq(collection_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing ciphers from collection")
+        }}
     }
 
     pub fn update_users_revision(collection_uuid: &str, conn: &DbConn) {

src/db/models/device.rs

@@ -3,6 +3,7 @@ use chrono::{NaiveDateTime, Utc};
 use super::User;
 use crate::CONFIG;
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "devices"]
     #[changeset_options(treat_none_as_null="true")]
@@ -16,7 +17,7 @@ pub struct Device {
         pub user_uuid: String,
 
         pub name: String,
-    /// https://github.com/bitwarden/core/tree/master/src/Core/Enums
+        // https://github.com/bitwarden/core/tree/master/src/Core/Enums
         pub atype: i32,
         pub push_token: Option<String>,
 
@@ -24,6 +25,7 @@ pub struct Device {
 
         pub twofactor_remember: Option<String>,
     }
+}
 
 /// Local methods
 impl Device {
@@ -105,41 +107,39 @@ impl Device {
     }
 }
 
-use crate::db::schema::devices;
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
 
 /// Database methods
 impl Device {
-    #[cfg(feature = "postgresql")]
     pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
         self.updated_at = Utc::now().naive_utc();
 
+        db_run! { conn: 
+            sqlite, mysql {
                 crate::util::retry(
-            || diesel::insert_into(devices::table).values(&*self).on_conflict(devices::uuid).do_update().set(&*self).execute(&**conn),
+                    || diesel::replace_into(devices::table).values(DeviceDb::to_db(self)).execute(conn),
                     10,
-        )
+                ).map_res("Error saving device")
-            .map_res("Error saving device")
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = DeviceDb::to_db(self);
-    pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
-        self.updated_at = Utc::now().naive_utc();
-
                 crate::util::retry(
-            || diesel::replace_into(devices::table).values(&*self).execute(&**conn),
+                    || diesel::insert_into(devices::table).values(&value).on_conflict(devices::uuid).do_update().set(&value).execute(conn),
                     10,
-        )
+                ).map_res("Error saving device")
-        .map_res("Error saving device")
+            }
+        }
     }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(devices::table.filter(devices::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing device")
+        }}
     }
 
     pub fn delete_all_by_user(user_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -150,23 +150,32 @@ impl Device {
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             devices::table
                 .filter(devices::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<DeviceDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_refresh_token(refresh_token: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             devices::table
                 .filter(devices::refresh_token.eq(refresh_token))
-            .first::<Self>(&**conn)
+                .first::<DeviceDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             devices::table
                 .filter(devices::user_uuid.eq(user_uuid))
-            .load::<Self>(&**conn)
+                .load::<DeviceDb>(conn)
                 .expect("Error loading devices")
+                .from_db()
+        }}
     }
 }

src/db/models/folder.rs

@@ -3,6 +3,7 @@ use serde_json::Value;
 
 use super::{Cipher, User};
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "folders"]
     #[belongs_to(User, foreign_key = "user_uuid")]
@@ -24,6 +25,7 @@ pub struct FolderCipher {
         pub cipher_uuid: String,
         pub folder_uuid: String,
     }
+}
 
 /// Local methods
 impl Folder {
@@ -61,47 +63,47 @@ impl FolderCipher {
     }
 }
 
-use crate::db::schema::{folders, folders_ciphers};
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
 
 /// Database methods
 impl Folder {
-    #[cfg(feature = "postgresql")]
     pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&self.user_uuid, conn);
         self.updated_at = Utc::now().naive_utc();
 
-        diesel::insert_into(folders::table)
+        db_run! { conn: 
-            .values(&*self)
+            sqlite, mysql {   
-            .on_conflict(folders::uuid)
+                diesel::replace_into(folders::table)
-            .do_update()
+                    .values(FolderDb::to_db(self))
-            .set(&*self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving folder")
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = FolderDb::to_db(self);
-    pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
+                diesel::insert_into(folders::table)
-        User::update_uuid_revision(&self.user_uuid, conn);
+                    .values(&value)
-        self.updated_at = Utc::now().naive_utc();
+                    .on_conflict(folders::uuid)
-
+                    .do_update()
-        diesel::replace_into(folders::table)
+                    .set(&value)
-            .values(&*self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving folder")
             }
+        }
+    }
 
     pub fn delete(&self, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&self.user_uuid, conn);
         FolderCipher::delete_all_by_folder(&self.uuid, &conn)?;
 
+        
+        db_run! { conn: {
             diesel::delete(folders::table.filter(folders::uuid.eq(&self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting folder")
+        }}
     }
 
     pub fn delete_all_by_user(user_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -112,73 +114,92 @@ impl Folder {
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             folders::table
                 .filter(folders::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<FolderDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             folders::table
                 .filter(folders::user_uuid.eq(user_uuid))
-            .load::<Self>(&**conn)
+                .load::<FolderDb>(conn)
                 .expect("Error loading folders")
+                .from_db()
+        }}
     }
 }
 
 impl FolderCipher {
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
-        diesel::insert_into(folders_ciphers::table)
+        db_run! { conn: 
-            .values(&*self)
+            sqlite, mysql {
-            .on_conflict((folders_ciphers::cipher_uuid, folders_ciphers::folder_uuid))
+                diesel::replace_into(folders_ciphers::table)
-            .do_nothing()
+                    .values(FolderCipherDb::to_db(self))
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error adding cipher to folder")
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                diesel::insert_into(folders_ciphers::table)
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
+                    .values(FolderCipherDb::to_db(self))
-        diesel::replace_into(folders_ciphers::table)
+                    .on_conflict((folders_ciphers::cipher_uuid, folders_ciphers::folder_uuid))
-            .values(&*self)
+                    .do_nothing()
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error adding cipher to folder") 
             }
+        }  
+    }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(
                 folders_ciphers::table
                     .filter(folders_ciphers::cipher_uuid.eq(self.cipher_uuid))
                     .filter(folders_ciphers::folder_uuid.eq(self.folder_uuid)),
             )
-        .execute(&**conn)
+            .execute(conn)
             .map_res("Error removing cipher from folder")
+        }}
     }
 
     pub fn delete_all_by_cipher(cipher_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(folders_ciphers::table.filter(folders_ciphers::cipher_uuid.eq(cipher_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing cipher from folders")
+        }}
     }
 
     pub fn delete_all_by_folder(folder_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(folders_ciphers::table.filter(folders_ciphers::folder_uuid.eq(folder_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing ciphers from folder")
+        }}
     }
 
     pub fn find_by_folder_and_cipher(folder_uuid: &str, cipher_uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             folders_ciphers::table
                 .filter(folders_ciphers::folder_uuid.eq(folder_uuid))
                 .filter(folders_ciphers::cipher_uuid.eq(cipher_uuid))
-            .first::<Self>(&**conn)
+                .first::<FolderCipherDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_folder(folder_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             folders_ciphers::table
                 .filter(folders_ciphers::folder_uuid.eq(folder_uuid))
-            .load::<Self>(&**conn)
+                .load::<FolderCipherDb>(conn)
                 .expect("Error loading folders")
+                .from_db()
+        }}
     }
 }

src/db/models/org_policy.rs

@@ -1,13 +1,12 @@
-use diesel::prelude::*;
 use serde_json::Value;
 
 use crate::api::EmptyResult;
-use crate::db::schema::org_policies;
 use crate::db::DbConn;
 use crate::error::MapResult;
 
 use super::Organization;
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "org_policies"]
     #[belongs_to(Organization, foreign_key = "org_uuid")]
@@ -19,6 +18,7 @@ pub struct OrgPolicy {
         pub enabled: bool,
         pub data: String,
     }
+}
 
 #[allow(dead_code)]
 #[derive(num_derive::FromPrimitive)]
@@ -55,8 +55,16 @@ impl OrgPolicy {
 
 /// Database methods
 impl OrgPolicy {
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: 
+            sqlite, mysql {
+                diesel::replace_into(org_policies::table)
+                    .values(OrgPolicyDb::to_db(self))
+                    .execute(conn)
+                    .map_res("Error saving org_policy")      
+            }
+            postgresql {
+                let value = OrgPolicyDb::to_db(self);
                 // We need to make sure we're not going to violate the unique constraint on org_uuid and atype.
                 // This happens automatically on other DBMS backends due to replace_into(). PostgreSQL does
                 // not support multiple constraints on ON CONFLICT clauses.
@@ -65,49 +73,50 @@ impl OrgPolicy {
                         .filter(org_policies::org_uuid.eq(&self.org_uuid))
                         .filter(org_policies::atype.eq(&self.atype)),
                 )
-        .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting org_policy for insert")?;
 
                 diesel::insert_into(org_policies::table)
-            .values(self)
+                    .values(&value)
                     .on_conflict(org_policies::uuid)
                     .do_update()
-            .set(self)
+                    .set(&value)
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error saving org_policy")
             }
-
+        }
-    #[cfg(not(feature = "postgresql"))]
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
-        diesel::replace_into(org_policies::table)
-            .values(&*self)
-            .execute(&**conn)
-            .map_res("Error saving org_policy")
     }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(org_policies::table.filter(org_policies::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting org_policy")
+        }}
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             org_policies::table
                 .filter(org_policies::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<OrgPolicyDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_org(org_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             org_policies::table
                 .filter(org_policies::org_uuid.eq(org_uuid))
-            .load::<Self>(&**conn)
+                .load::<OrgPolicyDb>(conn)
                 .expect("Error loading org_policy")
+                .from_db()
+        }}
     }
 
     pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
-        use crate::db::schema::users_organizations;
+        db_run! { conn: {
-
             org_policies::table
                 .left_join(
                     users_organizations::table.on(
@@ -115,27 +124,36 @@ impl OrgPolicy {
                             .and(users_organizations::user_uuid.eq(user_uuid)))
                 )
                 .select(org_policies::all_columns)
-            .load::<Self>(&**conn)
+                .load::<OrgPolicyDb>(conn)
                 .expect("Error loading org_policy")
+                .from_db()
+        }}
     }
 
     pub fn find_by_org_and_type(org_uuid: &str, atype: i32, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             org_policies::table
                 .filter(org_policies::org_uuid.eq(org_uuid))
                 .filter(org_policies::atype.eq(atype))
-            .first::<Self>(&**conn)
+                .first::<OrgPolicyDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn delete_all_by_organization(org_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(org_policies::table.filter(org_policies::org_uuid.eq(org_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting org_policy")
+        }}
     }
 
     /*pub fn delete_all_by_user(user_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(user_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting twofactors")
+        }}
     }*/
 }

src/db/models/organization.rs

@@ -4,6 +4,7 @@ use num_traits::FromPrimitive;
 
 use super::{CollectionUser, User, OrgPolicy};
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, AsChangeset)]
     #[table_name = "organizations"]
     #[primary_key(uuid)]
@@ -26,6 +27,7 @@ pub struct UserOrganization {
         pub status: i32,
         pub atype: i32,
     }
+}
 
 pub enum UserOrgStatus {
     Invited = 0,
@@ -196,16 +198,13 @@ impl UserOrganization {
     }
 }
 
-use crate::db::schema::{ciphers_collections, organizations, users_collections, users_organizations};
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
 
 /// Database methods
 impl Organization {
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
         UserOrganization::find_by_org(&self.uuid, conn)
             .iter()
@@ -213,28 +212,25 @@ impl Organization {
                 User::update_uuid_revision(&user_org.user_uuid, conn);
             });
 
-        diesel::insert_into(organizations::table)
+        db_run! { conn: 
-            .values(self)
+            sqlite, mysql {
-            .on_conflict(organizations::uuid)
+                diesel::replace_into(organizations::table)
-            .do_update()
+                    .values(OrganizationDb::to_db(self))
-            .set(self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error saving organization")            
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = OrganizationDb::to_db(self);
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
+                diesel::insert_into(organizations::table)
-        UserOrganization::find_by_org(&self.uuid, conn)
+                    .values(&value)
-            .iter()
+                    .on_conflict(organizations::uuid)
-            .for_each(|user_org| {
+                    .do_update()
-                User::update_uuid_revision(&user_org.user_uuid, conn);
+                    .set(&value)
-            });
+                    .execute(conn)
-
-        diesel::replace_into(organizations::table)
-            .values(self)
-            .execute(&**conn)
                     .map_res("Error saving organization")                
             }
+        }
+    }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
         use super::{Cipher, Collection};
@@ -244,20 +240,27 @@ impl Organization {
         UserOrganization::delete_all_by_organization(&self.uuid, &conn)?;
         OrgPolicy::delete_all_by_organization(&self.uuid, &conn)?;
 
+
+        db_run! { conn: {
             diesel::delete(organizations::table.filter(organizations::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error saving organization")
+        }}
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             organizations::table
                 .filter(organizations::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<OrganizationDb>(conn)
-            .ok()
+                .ok().from_db()
+        }}
     }
 
     pub fn get_all(conn: &DbConn) -> Vec<Self> {
-        organizations::table.load::<Self>(&**conn).expect("Error loading organizations")
+        db_run! { conn: {
+            organizations::table.load::<OrganizationDb>(conn).expect("Error loading organizations").from_db()
+        }}
     }
 }
 
@@ -345,38 +348,39 @@ impl UserOrganization {
             "Object": "organizationUserDetails",
         })
     }
-
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&self.user_uuid, conn);
 
-        diesel::insert_into(users_organizations::table)
+        db_run! { conn: 
-            .values(self)
+            sqlite, mysql {
-            .on_conflict(users_organizations::uuid)
+                diesel::replace_into(users_organizations::table)
-            .do_update()
+                    .values(UserOrganizationDb::to_db(self))
-            .set(self)
+                    .execute(conn)
-            .execute(&**conn)
                     .map_res("Error adding user to organization")        
             }
-
+            postgresql {
-    #[cfg(not(feature = "postgresql"))]
+                let value = UserOrganizationDb::to_db(self);
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
+                diesel::insert_into(users_organizations::table)
-        User::update_uuid_revision(&self.user_uuid, conn);
+                    .values(&value)
-
+                    .on_conflict(users_organizations::uuid)
-        diesel::replace_into(users_organizations::table)
+                    .do_update()
-            .values(self)
+                    .set(&value)
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error adding user to organization")            
             }
+        }
+    }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
         User::update_uuid_revision(&self.user_uuid, conn);
 
         CollectionUser::delete_all_by_user(&self.user_uuid, &conn)?;
 
+        db_run! { conn: {
             diesel::delete(users_organizations::table.filter(users_organizations::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error removing user from organization")
+        }}
     }
 
     pub fn delete_all_by_organization(org_uuid: &str, conn: &DbConn) -> EmptyResult {
@@ -403,76 +407,95 @@ impl UserOrganization {
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::uuid.eq(uuid))
-            .first::<Self>(&**conn)
+                .first::<UserOrganizationDb>(conn)
-            .ok()
+                .ok().from_db()
+        }}
     }
 
     pub fn find_by_uuid_and_org(uuid: &str, org_uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::uuid.eq(uuid))
                 .filter(users_organizations::org_uuid.eq(org_uuid))
-            .first::<Self>(&**conn)
+                .first::<UserOrganizationDb>(conn)
-            .ok()
+                .ok().from_db()
+        }}
     }
 
     pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::user_uuid.eq(user_uuid))
                 .filter(users_organizations::status.eq(UserOrgStatus::Confirmed as i32))
-            .load::<Self>(&**conn)
+                .load::<UserOrganizationDb>(conn)
-            .unwrap_or_default()
+                .unwrap_or_default().from_db()
+        }}
     }
 
     pub fn find_invited_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::user_uuid.eq(user_uuid))
                 .filter(users_organizations::status.eq(UserOrgStatus::Invited as i32))
-            .load::<Self>(&**conn)
+                .load::<UserOrganizationDb>(conn)
-            .unwrap_or_default()
+                .unwrap_or_default().from_db()
+        }}
     }
 
     pub fn find_any_state_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::user_uuid.eq(user_uuid))
-            .load::<Self>(&**conn)
+                .load::<UserOrganizationDb>(conn)
-            .unwrap_or_default()
+                .unwrap_or_default().from_db()
+        }}
     }
 
     pub fn find_by_org(org_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::org_uuid.eq(org_uuid))
-            .load::<Self>(&**conn)
+                .load::<UserOrganizationDb>(conn)
-            .expect("Error loading user organizations")
+                .expect("Error loading user organizations").from_db()
+        }}
     }
 
     pub fn count_by_org(org_uuid: &str, conn: &DbConn) -> i64 {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::org_uuid.eq(org_uuid))
                 .count()
-            .first::<i64>(&**conn)
+                .first::<i64>(conn)
                 .ok()
                 .unwrap_or(0)
+        }}
     }
 
     pub fn find_by_org_and_type(org_uuid: &str, atype: i32, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::org_uuid.eq(org_uuid))
                 .filter(users_organizations::atype.eq(atype))
-            .load::<Self>(&**conn)
+                .load::<UserOrganizationDb>(conn)
-            .expect("Error loading user organizations")
+                .expect("Error loading user organizations").from_db()
+        }}
     }
 
     pub fn find_by_user_and_org(user_uuid: &str, org_uuid: &str, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             users_organizations::table
                 .filter(users_organizations::user_uuid.eq(user_uuid))
                 .filter(users_organizations::org_uuid.eq(org_uuid))
-            .first::<Self>(&**conn)
+                .first::<UserOrganizationDb>(conn)
-            .ok()
+                .ok().from_db()
+        }}
     }
 
     pub fn find_by_cipher_and_org(cipher_uuid: &str, org_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
             .filter(users_organizations::org_uuid.eq(org_uuid))
             .left_join(users_collections::table.on(
@@ -489,10 +512,12 @@ impl UserOrganization {
                 )
             )
             .select(users_organizations::all_columns)
-        .load::<Self>(&**conn).expect("Error loading user organizations")
+            .load::<UserOrganizationDb>(conn).expect("Error loading user organizations").from_db()
+        }}
     }
 
     pub fn find_by_collection_and_org(collection_uuid: &str, org_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             users_organizations::table
             .filter(users_organizations::org_uuid.eq(org_uuid))
             .left_join(users_collections::table.on(
@@ -504,6 +529,7 @@ impl UserOrganization {
                 )
             )
             .select(users_organizations::all_columns)
-        .load::<Self>(&**conn).expect("Error loading user organizations")
+            .load::<UserOrganizationDb>(conn).expect("Error loading user organizations").from_db()
+        }}
     }
 }

src/db/models/two_factor.rs

@@ -1,13 +1,12 @@
-use diesel::prelude::*;
 use serde_json::Value;
 
 use crate::api::EmptyResult;
-use crate::db::schema::twofactor;
 use crate::db::DbConn;
 use crate::error::MapResult;
 
 use super::User;
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, Associations, AsChangeset)]
     #[table_name = "twofactor"]
     #[belongs_to(User, foreign_key = "user_uuid")]
@@ -20,6 +19,7 @@ pub struct TwoFactor {
         pub data: String,
         pub last_used: i32,
     }
+}
 
 #[allow(dead_code)]
 #[derive(num_derive::FromPrimitive)]
@@ -70,57 +70,69 @@ impl TwoFactor {
 
 /// Database methods
 impl TwoFactor {
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: 
+            sqlite, mysql {
+                diesel::replace_into(twofactor::table)
+                    .values(TwoFactorDb::to_db(self))
+                    .execute(conn)
+                    .map_res("Error saving twofactor")        
+            }
+            postgresql {
+                let value = TwoFactorDb::to_db(self);
                 // We need to make sure we're not going to violate the unique constraint on user_uuid and atype.
                 // This happens automatically on other DBMS backends due to replace_into(). PostgreSQL does
                 // not support multiple constraints on ON CONFLICT clauses.
                 diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(&self.user_uuid)).filter(twofactor::atype.eq(&self.atype)))
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error deleting twofactor for insert")?;
 
                 diesel::insert_into(twofactor::table)
-            .values(self)
+                    .values(&value)
                     .on_conflict(twofactor::uuid)
                     .do_update()
-            .set(self)
+                    .set(&value)
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error saving twofactor")            
             }
-
+        }
-    #[cfg(not(feature = "postgresql"))]
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
-        diesel::replace_into(twofactor::table)
-            .values(self)
-            .execute(&**conn)
-            .map_res("Error saving twofactor")
     }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(twofactor::table.filter(twofactor::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting twofactor")
+        }}
     }
 
     pub fn find_by_user(user_uuid: &str, conn: &DbConn) -> Vec<Self> {
+        db_run! { conn: {
             twofactor::table
                 .filter(twofactor::user_uuid.eq(user_uuid))
                 .filter(twofactor::atype.lt(1000)) // Filter implementation types
-            .load::<Self>(&**conn)
+                .load::<TwoFactorDb>(conn)
                 .expect("Error loading twofactor")
+                .from_db()
+        }}
     }
 
     pub fn find_by_user_and_type(user_uuid: &str, atype: i32, conn: &DbConn) -> Option<Self> {
+        db_run! { conn: {
             twofactor::table
                 .filter(twofactor::user_uuid.eq(user_uuid))
                 .filter(twofactor::atype.eq(atype))
-            .first::<Self>(&**conn)
+                .first::<TwoFactorDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn delete_all_by_user(user_uuid: &str, conn: &DbConn) -> EmptyResult {
+        db_run! { conn: {
             diesel::delete(twofactor::table.filter(twofactor::user_uuid.eq(user_uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting twofactors")
+        }}
     }
 }

src/db/models/user.rs

@@ -4,6 +4,7 @@ use serde_json::Value;
 use crate::crypto;
 use crate::CONFIG;
 
+db_object! {
     #[derive(Debug, Identifiable, Queryable, Insertable, AsChangeset)]
     #[table_name = "users"]
     #[changeset_options(treat_none_as_null="true")]
@@ -30,7 +31,7 @@ pub struct User {
         pub private_key: Option<String>,
         pub public_key: Option<String>,
 
-    #[column_name = "totp_secret"]
+        #[column_name = "totp_secret"] // Note, this is only added to the UserDb structs, not to User
         _totp_secret: Option<String>,
         pub totp_recover: Option<String>,
 
@@ -43,6 +44,15 @@ pub struct User {
         pub client_kdf_iter: i32,
     }
 
+
+    #[derive(Debug, Identifiable, Queryable, Insertable)]
+    #[table_name = "invitations"]
+    #[primary_key(email)]
+    pub struct Invitation {
+        pub email: String,
+    }
+}
+
 enum UserStatus {
     Enabled = 0,
     Invited = 1,
@@ -119,9 +129,7 @@ impl User {
 }
 
 use super::{Cipher, Device, Folder, TwoFactor, UserOrgType, UserOrganization};
-use crate::db::schema::{invitations, users};
 use crate::db::DbConn;
-use diesel::prelude::*;
 
 use crate::api::EmptyResult;
 use crate::error::MapResult;
@@ -158,7 +166,6 @@ impl User {
         })
     }
 
-    #[cfg(feature = "postgresql")]
     pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
         if self.email.trim().is_empty() {
             err!("User email can't be empty")
@@ -166,49 +173,48 @@ impl User {
 
         self.updated_at = Utc::now().naive_utc();
 
+        db_run! {conn:
+            sqlite, mysql {
+                diesel::replace_into(users::table) // Insert or update
+                    .values(&UserDb::to_db(self))
+                    .execute(conn)
+                    .map_res("Error saving user")
+            }
+            postgresql {
+                let value = UserDb::to_db(self);
                 diesel::insert_into(users::table) // Insert or update
-            .values(&*self)
+                    .values(&value)
                     .on_conflict(users::uuid)
                     .do_update()
-            .set(&*self)
+                    .set(&value)
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error saving user")
             }
-
-    #[cfg(not(feature = "postgresql"))]
-    pub fn save(&mut self, conn: &DbConn) -> EmptyResult {
-        if self.email.trim().is_empty() {
-            err!("User email can't be empty")
         }
-
-        self.updated_at = Utc::now().naive_utc();
-
-        diesel::replace_into(users::table) // Insert or update
-            .values(&*self)
-            .execute(&**conn)
-            .map_res("Error saving user")
     }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
-        for user_org in UserOrganization::find_by_user(&self.uuid, &*conn) {
+        for user_org in UserOrganization::find_by_user(&self.uuid, conn) {
             if user_org.atype == UserOrgType::Owner {
                 let owner_type = UserOrgType::Owner as i32;
-                if UserOrganization::find_by_org_and_type(&user_org.org_uuid, owner_type, &conn).len() <= 1 {
+                if UserOrganization::find_by_org_and_type(&user_org.org_uuid, owner_type, conn).len() <= 1 {
                     err!("Can't delete last owner")
                 }
             }
         }
 
-        UserOrganization::delete_all_by_user(&self.uuid, &*conn)?;
+        UserOrganization::delete_all_by_user(&self.uuid, conn)?;
-        Cipher::delete_all_by_user(&self.uuid, &*conn)?;
+        Cipher::delete_all_by_user(&self.uuid, conn)?;
-        Folder::delete_all_by_user(&self.uuid, &*conn)?;
+        Folder::delete_all_by_user(&self.uuid, conn)?;
-        Device::delete_all_by_user(&self.uuid, &*conn)?;
+        Device::delete_all_by_user(&self.uuid, conn)?;
-        TwoFactor::delete_all_by_user(&self.uuid, &*conn)?;
+        TwoFactor::delete_all_by_user(&self.uuid, conn)?;
-        Invitation::take(&self.email, &*conn); // Delete invitation if any
+        Invitation::take(&self.email, conn); // Delete invitation if any
 
+        db_run! {conn: {
             diesel::delete(users::table.filter(users::uuid.eq(self.uuid)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting user")
+        }}
     }
 
     pub fn update_uuid_revision(uuid: &str, conn: &DbConn) {
@@ -220,15 +226,14 @@ impl User {
     pub fn update_all_revisions(conn: &DbConn) -> EmptyResult {
         let updated_at = Utc::now().naive_utc();
 
-        crate::util::retry(
+        db_run! {conn: {
-            || {
+            crate::util::retry(|| {
                 diesel::update(users::table)
                     .set(users::updated_at.eq(updated_at))
-                    .execute(&**conn)
+                    .execute(conn)
-            },
+            }, 10)
-            10,
-        )
             .map_res("Error updating revision date for all users")
+        }}
     }
 
     pub fn update_revision(&mut self, conn: &DbConn) -> EmptyResult {
@@ -238,84 +243,85 @@ impl User {
     }
 
     fn _update_revision(uuid: &str, date: &NaiveDateTime, conn: &DbConn) -> EmptyResult {
-        crate::util::retry(
+        db_run! {conn: {
-            || {
+            crate::util::retry(|| {
                 diesel::update(users::table.filter(users::uuid.eq(uuid)))
                     .set(users::updated_at.eq(date))
-                    .execute(&**conn)
+                    .execute(conn)
-            },
+            }, 10)
-            10,
-        )
             .map_res("Error updating user revision")
+        }}
     }
 
     pub fn find_by_mail(mail: &str, conn: &DbConn) -> Option<Self> {
         let lower_mail = mail.to_lowercase();
+        db_run! {conn: {
             users::table
                 .filter(users::email.eq(lower_mail))
-            .first::<Self>(&**conn)
+                .first::<UserDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn find_by_uuid(uuid: &str, conn: &DbConn) -> Option<Self> {
-        users::table.filter(users::uuid.eq(uuid)).first::<Self>(&**conn).ok()
+        db_run! {conn: {
+            users::table.filter(users::uuid.eq(uuid)).first::<UserDb>(conn).ok().from_db()
+        }}
     }
 
     pub fn get_all(conn: &DbConn) -> Vec<Self> {
-        users::table.load::<Self>(&**conn).expect("Error loading users")
+        db_run! {conn: {
+            users::table.load::<UserDb>(conn).expect("Error loading users").from_db()
+        }}
     }
 }
 
-#[derive(Debug, Identifiable, Queryable, Insertable)]
-#[table_name = "invitations"]
-#[primary_key(email)]
-pub struct Invitation {
-    pub email: String,
-}
-
 impl Invitation {
     pub const fn new(email: String) -> Self {
         Self { email }
     }
 
-    #[cfg(feature = "postgresql")]
     pub fn save(&self, conn: &DbConn) -> EmptyResult {
         if self.email.trim().is_empty() {
             err!("Invitation email can't be empty")
         }
 
+        db_run! {conn:
+            sqlite, mysql {
+                diesel::replace_into(invitations::table)
+                    .values(InvitationDb::to_db(self))
+                    .execute(conn)
+                    .map_res("Error saving invitation")        
+            }
+            postgresql {
                 diesel::insert_into(invitations::table)
-            .values(self)
+                    .values(InvitationDb::to_db(self))
                     .on_conflict(invitations::email)
                     .do_nothing()
-            .execute(&**conn)
+                    .execute(conn)
                     .map_res("Error saving invitation")                
             }
-
-    #[cfg(not(feature = "postgresql"))]
-    pub fn save(&self, conn: &DbConn) -> EmptyResult {
-        if self.email.trim().is_empty() {
-            err!("Invitation email can't be empty")
         }
-
-        diesel::replace_into(invitations::table)
-            .values(self)
-            .execute(&**conn)
-            .map_res("Error saving invitation")
     }
 
     pub fn delete(self, conn: &DbConn) -> EmptyResult {
+        db_run! {conn: {
             diesel::delete(invitations::table.filter(invitations::email.eq(self.email)))
-            .execute(&**conn)
+                .execute(conn)
                 .map_res("Error deleting invitation")
+        }}
     }
 
     pub fn find_by_mail(mail: &str, conn: &DbConn) -> Option<Self> {
         let lower_mail = mail.to_lowercase();
+        db_run! {conn: {
             invitations::table
                 .filter(invitations::email.eq(lower_mail))
-            .first::<Self>(&**conn)
+                .first::<InvitationDb>(conn)
                 .ok()
+                .from_db()
+        }}
     }
 
     pub fn take(mail: &str, conn: &DbConn) -> bool {

src/error.rs

@@ -34,6 +34,7 @@ macro_rules! make_error {
 }
 
 use diesel::result::Error as DieselErr;
+use diesel::r2d2::PoolError as R2d2Err;
 use handlebars::RenderError as HbErr;
 use jsonwebtoken::errors::Error as JWTErr;
 use regex::Error as RegexErr;
@@ -66,6 +67,7 @@ make_error! {
     // Used for special return values, like 2FA errors
     JsonError(Value):     _no_source,  _serialize,
     DbError(DieselErr):   _has_source, _api_error,
+    R2d2Error(R2d2Err):   _has_source, _api_error,
     U2fError(U2fErr):     _has_source, _api_error,
     SerdeError(SerdeErr): _has_source, _api_error,
     JWTError(JWTErr):     _has_source, _api_error,

src/main.rs

@@ -33,6 +33,7 @@ mod api;
 mod auth;
 mod config;
 mod crypto;
+#[macro_use]
 mod db;
 mod mail;
 mod util;
@@ -61,10 +62,8 @@ fn main() {
         _ => false,
     };
 
-    check_db();
     check_rsa_keys();
     check_web_vault();
-    migrations::run_migrations();
 
     create_icon_cache_folder();
 
@@ -200,30 +199,6 @@ fn chain_syslog(logger: fern::Dispatch) -> fern::Dispatch {
     }
 }
 
-fn check_db() {
-    if cfg!(feature = "sqlite") {
-        let url = CONFIG.database_url();
-        let path = Path::new(&url);
-
-        if let Some(parent) = path.parent() {
-            if create_dir_all(parent).is_err() {
-                error!("Error creating database directory");
-                exit(1);
-            }
-        }
-
-        // Turn on WAL in SQLite
-        if CONFIG.enable_db_wal() {
-            use diesel::RunQueryDsl;
-            let connection = db::get_connection().expect("Can't connect to DB");
-            diesel::sql_query("PRAGMA journal_mode=wal")
-                .execute(&connection)
-                .expect("Failed to turn on WAL");
-        }
-    }
-    db::get_connection().expect("Can't connect to DB");
-}
-
 fn create_icon_cache_folder() {
     // Try to create the icon cache folder, and generate an error if it could not.
     create_dir_all(&CONFIG.icon_cache_folder()).expect("Error creating icon cache directory");
@@ -285,57 +260,22 @@ fn check_web_vault() {
     let index_path = Path::new(&CONFIG.web_vault_folder()).join("index.html");
 
     if !index_path.exists() {
-        error!("Web vault is not found. To install it, please follow the steps in: ");
+        error!("Web vault is not found at '{}'. To install it, please follow the steps in: ", CONFIG.web_vault_folder());
         error!("https://github.com/dani-garcia/bitwarden_rs/wiki/Building-binary#install-the-web-vault");
         error!("You can also set the environment variable 'WEB_VAULT_ENABLED=false' to disable it");
         exit(1);
     }
 }
 
-// Embed the migrations from the migrations folder into the application
-// This way, the program automatically migrates the database to the latest version
-// https://docs.rs/diesel_migrations/*/diesel_migrations/macro.embed_migrations.html
-#[allow(unused_imports)]
-mod migrations {
-
-    #[cfg(feature = "sqlite")]
-    embed_migrations!("migrations/sqlite");
-    #[cfg(feature = "mysql")]
-    embed_migrations!("migrations/mysql");
-    #[cfg(feature = "postgresql")]
-    embed_migrations!("migrations/postgresql");
-
-    pub fn run_migrations() {
-        // Make sure the database is up to date (create if it doesn't exist, or run the migrations)
-        let connection = crate::db::get_connection().expect("Can't connect to DB");
-
-        use std::io::stdout;
-
-        // Disable Foreign Key Checks during migration
-        use diesel::RunQueryDsl;
-
-        // FIXME: Per https://www.postgresql.org/docs/12/sql-set-constraints.html,
-        // "SET CONSTRAINTS sets the behavior of constraint checking within the
-        // current transaction", so this setting probably won't take effect for
-        // any of the migrations since it's being run outside of a transaction.
-        // Migrations that need to disable foreign key checks should run this
-        // from within the migration script itself.
-        #[cfg(feature = "postgres")]
-        diesel::sql_query("SET CONSTRAINTS ALL DEFERRED").execute(&connection).expect("Failed to disable Foreign Key Checks during migrations");
-
-        // Scoped to a connection/session.
-        #[cfg(feature = "mysql")]
-        diesel::sql_query("SET FOREIGN_KEY_CHECKS = 0").execute(&connection).expect("Failed to disable Foreign Key Checks during migrations");
-
-        // Scoped to a connection.
-        #[cfg(feature = "sqlite")]
-        diesel::sql_query("PRAGMA foreign_keys = OFF").execute(&connection).expect("Failed to disable Foreign Key Checks during migrations");
-
-        embedded_migrations::run_with_output(&connection, &mut stdout()).expect("Can't run migrations");
-    }
-}
-
 fn launch_rocket(extra_debug: bool) {
+    let pool = match db::DbPool::from_config() {
+        Ok(p) => p,
+        Err(e) => {
+            error!("Error creating database pool: {:?}", e);
+            exit(1);
+        }
+    };
+
     let basepath = &CONFIG.domain_path();
 
     // If adding more paths here, consider also adding them to
@@ -347,7 +287,7 @@ fn launch_rocket(extra_debug: bool) {
         .mount(&[basepath, "/identity"].concat(), api::identity_routes())
         .mount(&[basepath, "/icons"].concat(), api::icons_routes())
         .mount(&[basepath, "/notifications"].concat(), api::notifications_routes())
-        .manage(db::init_pool())
+        .manage(pool)
         .manage(api::start_notification_server())
         .attach(util::AppHeaders())
         .attach(util::CORS())