From:
Operating system: GNU/Linux
PHP version: 5.3.9
Package: SQLite related
Bug Type: Feature/Change Request
Bug description:Support creating collations in SQLite3 class
Description:
------------
The C API for SQLite3 offers an sqlite3_create_collation() feature that is
missing from the PHP SQLite3 class. createCollation() should be added to
SQLite3, much like createFunction() and createAggregate().
This allows using a PHP function or user-defined function as a collation
for use in SQL, e.g.:
$db->createCollation('my_sort_rule', function($a,$b){
return custom_compare($a,$b);
});
$db->query('SELECT col FROM table ORDER BY col COLLATE my_sort_rule');
The included patch adds SQLite3::createCollation(). (the diff is against
5.3.9 release code, but patching 5.3-dev or 5.4-dev with it works as of
2012-01-24)
Request #55226 is related -- asking for the same feature in PDO-sqlite3.
Test script:
---------------
<?php
$db = new SQLite3(':memory:');
$db->createCollation('NATCMP', 'strnatcmp');
$db->exec('CREATE TABLE t (s varchar(4))');
$db->exec("INSERT INTO t VALUES ('a1') ");
$db->exec("INSERT INTO t VALUES ('a10')");
$db->exec("INSERT INTO t VALUES ('a2') ");
$defaultSort = $db->query('SELECT s FROM t ORDER BY s');
$naturalSort = $db->query('SELECT s FROM t ORDER BY s COLLATE NAT');
echo "default\n";
while ($row = $defaultSort->fetchArray()){
echo $row['s'], "\n";
}
echo "natural\n";
while ($row = $naturalSort->fetchArray()){
echo $row['s'], "\n";
}
$db->close();
?>
Expected result:
----------------
default
a1
a10
a2
natural
a1
a2
a10
Actual result:
--------------
SQLite3::createCollation doesn't exist (yet).
--
Edit bug report at https://bugs.php.net/bug.php?id=60871&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60871&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60871&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60871&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60871&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60871&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60871&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60871&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60871&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60871&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60871&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60871&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60871&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60871&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60871&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60871&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60871&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60871&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60871&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60871&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60871&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60871&r=mysqlcfg
