Add relationship between two models

Question

I have model 1 represent a table with (id1,par1, para2 ) and model 2 represent a table with (id2,para3)

I want to modify model 1 in order when I use

$mydata = model1::model()->findBySql('SELECT * FROM table1 ORDER BY id1 DESC');

this query return for me directly only where par1 > par3 (both of them are time), without adding the condition where . Or if thee is a method to add a condition where based in other model ?

  class model1 extends CActiveRecord
   {

public static function model($className=__CLASS__)
{
    return parent::model($className);
}

public function tableName()
  {
    return 'table1';
  } 
  }

Many thanks.

Answer 1

感谢您的所有评论，我通过使用两个cdbcreteria解决了这个问题，并在它们之间建立了条件， 请参见此处