From 78af2b4630ccde4b03659a259f739f83ae0de9ec Mon Sep 17 00:00:00 2001 From: rojaro <> Date: Mon, 13 Jul 2009 14:02:17 +0000 Subject: - ActiveRecord Port from Yii ... not perfect but works ^^ --- framework/Db/Schema/TDbCriteria.php | 166 ++++++++++++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100755 framework/Db/Schema/TDbCriteria.php (limited to 'framework/Db/Schema/TDbCriteria.php') diff --git a/framework/Db/Schema/TDbCriteria.php b/framework/Db/Schema/TDbCriteria.php new file mode 100755 index 00000000..3dab036a --- /dev/null +++ b/framework/Db/Schema/TDbCriteria.php @@ -0,0 +1,166 @@ + + * @link http://www.yiiframework.com/ + * @copyright Copyright © 2008-2009 Yii Software LLC + * @license http://www.yiiframework.com/license/ + */ + +/** + * TDbCriteria represents a query criteria, such as conditions, ordering by, limit/offset. + * + * @author Qiang Xue + * @version $Id: TDbCriteria.php 2679 2009-06-15 07:49:42Z Christophe.Boulain $ + * @package system.db.schema + * @since 1.0 + */ +class TDbCriteria +{ + /** + * @var mixed the columns being selected. This refers to the SELECT clause in an SQL + * statement. The property can be either a string (column names separated by commas) + * or an array of column names. Defaults to '*', meaning all columns. + */ + public $select='*'; + /** + * @var string query condition. This refers to the WHERE clause in an SQL statement. + * For example, age>31 AND team=1. + */ + public $condition=''; + /** + * @var array list of query parameter values indexed by parameter placeholders. + * For example, array(':name'=>'Dan', ':age'=>31). + */ + public $params=array(); + /** + * @var integer maximum number of records to be returned. If less than 0, it means no limit. + */ + public $limit=-1; + /** + * @var integer zero-based offset from where the records are to be returned. If less than 0, it means starting from the beginning. + */ + public $offset=-1; + /** + * @var string how to sort the query results. This refers to the ORDER BY clause in an SQL statement. + */ + public $order=''; + /** + * @var string how to group the query results. This refers to the GROUP BY clause in an SQL statement. + * For example, 'projectID, teamID'. + */ + public $group=''; + /** + * @var string how to join with other tables. This refers to the JOIN clause in an SQL statement. + * For example, 'LEFT JOIN users ON users.id=authorID'. + */ + public $join=''; + /** + * @var string the condition to be applied with GROUP-BY clause. + * For example, 'SUM(revenue)<50000'. + * @since 1.0.1 + */ + public $having=''; + + /** + * Constructor. + * @param array criteria initial property values (indexed by property name) + */ + public function __construct($data=array()) + { + foreach($data as $name=>$value) + $this->$name=$value; + } + + /** + * Merges with another criteria. + * In general, the merging makes the resulting criteria more restrictive. + * For example, if both criterias have conditions, they will be 'AND' together. + * Also, the criteria passed as the parameter takes precedence in case + * two options cannot be merged (e.g. LIMIT, OFFSET). + * @param TDbCriteria the criteria to be merged with. + * @param boolean whether to use 'AND' to merge condition and having options. + * If false, 'OR' will be used instead. Defaults to 'AND'. This parameter has been + * available since version 1.0.6. + * @since 1.0.5 + */ + public function mergeWith($criteria,$useAnd=true) + { + $and=$useAnd ? 'AND' : 'OR'; + if(is_array($criteria)) + $criteria=new self($criteria); + if($this->select!==$criteria->select) + { + if($this->select==='*') + $this->select=$criteria->select; + else if($criteria->select!=='*') + { + $select1=is_string($this->select)?preg_split('/\s*,\s*/',trim($this->select),-1,PREG_SPLIT_NO_EMPTY):$this->select; + $select2=is_string($criteria->select)?preg_split('/\s*,\s*/',trim($criteria->select),-1,PREG_SPLIT_NO_EMPTY):$criteria->select; + $this->select=array_merge($select1,array_diff($select2,$select1)); + } + } + + if($this->condition!==$criteria->condition) + { + if($this->condition==='') + $this->condition=$criteria->condition; + else if($criteria->condition!=='') + $this->condition="({$this->condition}) $and ({$criteria->condition})"; + } + + if($this->params!==$criteria->params) + $this->params=array_merge($this->params,$criteria->params); + + if($criteria->limit>0) + $this->limit=$criteria->limit; + + if($criteria->offset>=0) + $this->offset=$criteria->offset; + + if($this->order!==$criteria->order) + { + if($this->order==='') + $this->order=$criteria->order; + else if($criteria->order!=='') + $this->order.=', '.$criteria->order; + } + + if($this->group!==$criteria->group) + { + if($this->group==='') + $this->group=$criteria->group; + else if($criteria->group!=='') + $this->group.=', '.$criteria->group; + } + + if($this->join!==$criteria->join) + { + if($this->join==='') + $this->join=$criteria->join; + else if($criteria->join!=='') + $this->join.=' '.$criteria->join; + } + + if($this->having!==$criteria->having) + { + if($this->having==='') + $this->having=$criteria->having; + else if($criteria->having!=='') + $this->having="({$this->having}) $and ({$criteria->having})"; + } + } + + /** + * @return array the array representation of the criteria + * @since 1.0.6 + */ + public function toArray() + { + $result=array(); + foreach(array('select', 'condition', 'params', 'limit', 'offset', 'order', 'group', 'join', 'having') as $name) + $result[$name]=$this->$name; + return $result; + } +} -- cgit v1.2.3