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Use different query for SQLite databases.

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- Fix: Avoid errors with SQLite database.

Closes #35.
This commit is contained in:
Daniel Kraus
2017-10-16 20:16:33 +02:00
parent f1df4e29f0
commit 9244518b26
2 changed files with 42 additions and 28 deletions
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53
includes/Targets.php
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@ -74,6 +74,12 @@ class Targets {
private $config;
/**
* Stores the CHAR_LENGTH function to be used with the database connection.
* @var string $charLengthFunction
*/
private $charLengthFunction;
/**
* The constructor is private to enforce using the singleton pattern.
* @param \Title $title
@ -129,34 +135,25 @@ class Targets {
// = 0) are returned. Since the db may be sqlite, we need a try..catch
// structure because sqlite does not support the CHAR_LENGTH function.
$dbr = wfGetDB( DB_SLAVE );
try {
$this->queryResult = $dbr->select(
'page',
array( 'page_title', 'page_namespace' , "weight" => $weightSelect),
array_filter(
array(
'page_namespace IN ' . $namespacesClause,
'CHAR_LENGTH(page_title) >= ' . $this->config->minimumTitleLength,
$blackList,
)
),
__METHOD__,
array( 'ORDER BY' => 'weight ASC, CHAR_LENGTH(page_title) ' . $sortOrder )
);
} catch (Exception $e) {
$this->queryResult = $dbr->select(
'page',
array( 'page_title', 'page_namespace' , "weight" => $weightSelect ),
array_filter(
array(
'page_namespace IN ' . $namespacesClause,
'LENGTH(page_title) >= ' . $this->config->minimumTitleLength,
$blackList,
)
),
__METHOD__,
array( 'ORDER BY' => 'weight ASC, LENGTH(page_title) ' . $sortOrder )
);
$this->queryResult = $dbr->select(
'page',
array( 'page_title', 'page_namespace' , "weight" => $weightSelect),
array_filter(
array(
'page_namespace IN ' . $namespacesClause,
'CHAR_LENGTH(page_title) >= ' . $this->config->minimumTitleLength,
$blackList,
)
),
__METHOD__,
array( 'ORDER BY' => 'weight ASC, ' . $this->charLength() . '(page_title) ' . $sortOrder )
);
}
private function charLength() {
if ($this->charLengthFunction === null) {
$this->charLengthFunction = $this->config->sqliteDatabase() ? 'LENGTH' : 'CHAR_LENGTH';
}
return $this->charLengthFunction;
}
}