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Add file and playlist deletion (by path) routines

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This commit is contained in:
Julien BLACHE 2009-06-10 21:36:43 +02:00
parent ac96ac6baf
commit 9ff8913dd6
2 changed files with 141 additions and 26 deletions
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161
src/db.c
View File

@ -1296,6 +1296,35 @@ db_file_update(struct media_file_info *mfi)
#undef Q_TMPL
}
void
db_file_delete_bypath(char *path)
{
#define Q_TMPL "DELETE FROM songs WHERE path = '%q';"
char *query;
char *errmsg;
int ret;
query = sqlite3_mprintf(Q_TMPL, path);
if (!query)
{
DPRINTF(E_LOG, L_DB, "Out of memory for query string\n");
return;
}
DPRINTF(E_DBG, L_DB, "Running query '%s'\n", query);
errmsg = NULL;
ret = sqlite3_exec(hdl, query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK)
DPRINTF(E_LOG, L_DB, "Error deleting file: %s\n", errmsg);
sqlite3_free(errmsg);
sqlite3_free(query);
#undef Q_TMPL
}
/* Playlists */
int
@ -1360,6 +1389,56 @@ db_pl_ping(int id)
#undef Q_TMPL
}
static int
db_pl_id_bypath(char *path, int *id)
{
#define Q_TMPL "SELECT id FROM playlists WHERE path = '%q';"
char *query;
sqlite3_stmt *stmt;
int ret;
query = sqlite3_mprintf(Q_TMPL, path);
if (!query)
{
DPRINTF(E_LOG, L_DB, "Out of memory for query string\n");
return -1;
}
DPRINTF(E_DBG, L_DB, "Running query '%s'\n", query);
ret = sqlite3_prepare_v2(hdl, query, -1, &stmt, NULL);
if (ret != SQLITE_OK)
{
DPRINTF(E_LOG, L_DB, "Could not prepare statement: %s\n", sqlite3_errmsg(hdl));
sqlite3_free(query);
return -1;
}
ret = sqlite3_step(stmt);
if (ret != SQLITE_ROW)
{
if (ret == SQLITE_DONE)
DPRINTF(E_INFO, L_DB, "No results\n");
else
DPRINTF(E_LOG, L_DB, "Could not step: %s\n", sqlite3_errmsg(hdl));
sqlite3_finalize(stmt);
sqlite3_free(query);
return -1;
}
*id = sqlite3_column_int(stmt, 0);
sqlite3_finalize(stmt);
sqlite3_free(query);
return 0;
#undef Q_TMPL
}
static struct playlist_info *
db_pl_fetch_byquery(char *query)
{
@ -1700,6 +1779,35 @@ db_pl_add_item(int plid, int mfid)
#undef QADD_TMPL
}
static void
db_pl_clear_items(int id)
{
#define Q_TMPL "DELETE FROM playlistitems WHERE playlistid = %d;"
char *query;
char *errmsg;
int ret;
query = sqlite3_mprintf(Q_TMPL, id);
if (!query)
{
DPRINTF(E_LOG, L_DB, "Out of memory for query string\n");
return;
}
DPRINTF(E_DBG, L_DB, "Running query '%s'\n", query);
errmsg = NULL;
ret = sqlite3_exec(hdl, query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK)
DPRINTF(E_LOG, L_DB, "Error clearing playlist %d items: %s\n", id, errmsg);
sqlite3_free(errmsg);
sqlite3_free(query);
#undef Q_TMPL
}
void
db_pl_update(int id)
{
@ -1787,47 +1895,48 @@ db_pl_update_all(void)
void
db_pl_delete(int id)
{
#define Q1_TMPL "DELETE FROM playlists WHERE id = %d;"
#define Q2_TMPL "DELETE FROM playlistitems WHERE playlistid = %d;"
char *query[2];
#define Q_TMPL "DELETE FROM playlists WHERE id = %d;"
char *query;
char *errmsg;
int i;
int ret;
if (id == 1)
return;
query[0] = sqlite3_mprintf(Q1_TMPL, id);
query[1] = sqlite3_mprintf(Q2_TMPL, id);
if (!query[0] || !query[1])
query = sqlite3_mprintf(Q_TMPL, id);
if (!query)
{
DPRINTF(E_LOG, L_DB, "Out of memory for query string\n");
if (query[0])
sqlite3_free(query[0]);
if (query[1])
sqlite3_free(query[1]);
return;
}
for (i = 0; i < (sizeof(query) / sizeof(query[0])); i++)
{
DPRINTF(E_DBG, L_DB, "Running query '%s'\n", query[i]);
DPRINTF(E_DBG, L_DB, "Running query '%s'\n", query);
errmsg = NULL;
ret = sqlite3_exec(hdl, query[i], NULL, NULL, &errmsg);
if (ret != SQLITE_OK)
{
DPRINTF(E_LOG, L_DB, "Query error: %s\n", errmsg);
sqlite3_free(errmsg);
}
errmsg = NULL;
ret = sqlite3_exec(hdl, query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK)
DPRINTF(E_LOG, L_DB, "Error deleting playlist %d: %s\n", id, errmsg);
sqlite3_free(query[i]);
}
sqlite3_free(errmsg);
sqlite3_free(query);
#undef Q1_TMPL
#undef Q2_TMPL
db_pl_clear_items(id);
#undef Q_TMPL
}
void
db_pl_delete_bypath(char *path)
{
int id;
int ret;
ret = db_pl_id_bypath(path, &id);
if (ret < 0)
return;
db_pl_delete(id);
}

6
src/db.h
View File

@ -237,6 +237,9 @@ db_file_add(struct media_file_info *mfi);
int
db_file_update(struct media_file_info *mfi);
void
db_file_delete_bypath(char *path);
/* Playlists */
int
db_pl_get_count(int *count);
@ -262,6 +265,9 @@ db_pl_update_all(void);
void
db_pl_delete(int id);
void
db_pl_delete_bypath(char *path);
/* Inotify */
int
db_watch_clear(void);