$c = new CDbCriteria();是ActiveRecord的一種寫法,使ActiveRecord更加靈活,而不是手冊中DAO(PDO)和Query Builder。
$criteria = new CDbCriteria;//函數方式
$criteria->addCondition("id=1"); //查詢條件,即where id = 1
$criteria->addInCondition('id', array(1,2,3,4,5)); //代表where id IN (1,23,,4,5,);
$criteria->addNotInCondition('id', array(1,2,3,4,5));//與上面正好相法,是NOT IN
$criteria->addCondition('id=1','OR');//這是OR條件,多個條件的時候,該條件是OR而非AND
$criteria->addSearchCondition('name', '分類');//搜索條件,其實代表了。。where name like '%分類%'
$criteria->addBetweenCondition('id', 1, 4);//between 1 and 4
$criteria->addCondition("id = :id");
$criteria->params[':id']=1;
//屬性方式
$criteria->select = 'id,parentid,name'; //代表了要查詢的字段,默認select='*';
$criteria->join = 'xxx'; //連接表
$criteria->with = 'xxx'; //調用relations
$criteria->limit = 10; //取1條數據,如果小於0,則不作處理
$criteria->offset = 1; //兩條合併起來,則表示 limit 10 offset 1,或者代表了。limit 1,10
$criteria->order = 'xxx DESC,XXX ASC' ;//排序條件
$criteria->group = 'group 條件';
$criteria->having = 'having 條件 ';
$criteria->distinct = FALSE; //是否唯一查詢
實例:
Php代碼
$criteria
= new CDbCriteria();
$criteria->select = 'table_name,model_id,sum(amount) total';
$criteria->group = 'table_name,model_id';
$criteria->addCondition("$nIdcId=4");//也可以$criteria->condition = "$nIdcId=4";
$aResult = accessory_info::model()->findAll($criteria);