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[SMARTPL] add 'random' in 'order by' clause

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'random' tag in 'order by' clause to request SQLite to random select data rows from result set

    "random 3 pop" {
      genre is "Pop" and
      media_kind is music
      order by random desc
      limit 3
    }
This commit is contained in:
whatdoineed2do/Ray 2020-05-09 15:42:25 +01:00
parent 86d49a7028
commit 4147e302a8
2 changed files with 9 additions and 0 deletions
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4
src/SMARTPL.g
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@ -37,6 +37,7 @@ ordertag : STRTAG
| INTTAG
| DATETAG
| ENUMTAG
| RANDOMTAG
| (XXX)? NeverUsedRule
;
@ -117,6 +118,9 @@ GROUPTAG : 'track_count'
| 'album_count'
;
RANDOMTAG : 'random'
;
INCLUDES : 'includes'
;

5
src/SMARTPL2SQL.g
View File

@ -345,6 +345,11 @@ ordertag returns [ pANTLR3_STRING result ]
$result->append8($result, "f.");
$result->appendS($result, $ENUMTAG.text->toUTF8($ENUMTAG.text));
}
| RANDOMTAG
{
$result = $RANDOMTAG.text->factory->newRaw($RANDOMTAG.text->factory);
$result->append8($result, "random()");
}
;
dateval returns [ pANTLR3_STRING result ]