I have 4 database table:
User: id, username, password
Floor: id, userid, name
Room: id, floor, name
Student: id, room, name, active
How to return CActiveDataProvider for the follow SQL command?
SELECT * FROM `student` WHERE `student`.`active` = 0 AND `student`.`room` IN (SELECT `room`.`id` FROM `room` WHERE `room`.`floor` = (SELECT `floor`.`id` FROM `floor` WHERE `floor`.`userid` = $userid))
I tried:
$model = Student::model()->findAllBySql("SELECT * FROM student WHERE active = 0 AND room IN (SELECT id FROM room WHERE floor = (SELECT id FROM floor WHERE user = $user))");
return new CActiveDataProvider($model);
But response:
Fatal error: Call to a member function getDbCriteria() on a non-object in X:appserv\www\framework\web\CActiveDataProvider.php on line 225