Created
October 3, 2012 09:36
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Find by any of tags for taggable Yii extension
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/** | |
* Get criteria to limit query to match any of tags specified | |
* @access private | |
* @param array $tags | |
* @return CDbCriteria | |
*/ | |
protected function getFindByAnyTagsCriteria($tags) { | |
$criteria = new CDbCriteria(); | |
$pk = $this->getOwner()->tableSchema->primaryKey; | |
if(!empty($tags)){ | |
$conn = $this->getConnection(); | |
foreach($tags as &$tag) { | |
$tag = $conn->quoteValue($tag); | |
} | |
unset($tag); | |
$tags = implode(', ', $tags); | |
$criteria->select = 't.*'; | |
$criteria->join .= | |
"JOIN {$this->getTagBindingTableName()} bt ON t.{$pk} = bt.{$this->getModelTableFkName()} | |
JOIN {$this->tagTable} tag ON tag.{$this->tagTablePk} = bt.{$this->tagBindingTableTagId} AND tag.`{$this->tagTableName}` IN ($tags)"; | |
} | |
} | |
if($this->getScopeCriteria()){ | |
$criteria->mergeWith($this->getScopeCriteria()); | |
} | |
return $criteria; | |
} | |
/** | |
* Limit current AR query to have any of tags specified. | |
* @param string|array $tags | |
* @return CActiveRecord | |
*/ | |
public function taggedWithAnyOf($tags) { | |
$tags = $this->toTagsArray($tags); | |
if(!empty($tags)){ | |
$criteria = $this->getFindByAnyTagsCriteria($tags); | |
$this->getOwner()->getDbCriteria()->mergeWith($criteria); | |
} | |
return $this->getOwner(); | |
} |
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