hy
let have a example
i have
table tags model Tag
table contenttags and model Contenttag
table catgorytags and model Catgorytag

in model Tag
var $hasMany = array(
                        'Contenttag' => array('className' => 'Contenttag',
                                                                'foreignKey' => 
'tag_id',

                        ),
                        'Categorytag' => array('className' => 'Categorytag',
                                                                'foreignKey' => 
'tag_id',

                        ),
                        'Contenttypetag' => array('className' => 
'Contenttypetag',
                                                                'foreignKey' => 
'tag_id',

                        )
        );

other Contenttag && categoryTag are like

class Contenttag extends AppModel{
   var $belongsTo = array('Tag');
}



now i want to delete record form tag table which should also be delete
from contenttag and categorytag. what should i do ? for this.
should i need to define the dependent table as well
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