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Akelos Programming: Unable to delete child records with has_many

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    •  
      CommentAuthorriffed
     

    I'm having a problem deleting a child record in a has_many association. I want to delete the child record ( address ) when the parent ( company ) is saved. No-mater what I do, the associate id for the parent is set to null but the child record is not deleted.

    The company model

    var $has_many   = array('addresses');

    The address model

    var $belongs_to = array('company'=>array('dependent'=>'destroy'));

    In the company_controller

    elseif (preg_match('/^-\d+$/', $this->params['company']['addresses'][$address_counter]['id']))
{                                                       
    /* remove the delete flag from the id */
    $this->params['company']['addresses'][$address_counter]['id'] = 
       trim($this->params['company']['addresses'][$address_counter]['id'],'-');

   /* call $has_many->delete(&$object) */
    $this->company->address->delete(
       $this->company->address->build($this->params['company']['addresses'][$address_counter])
    );

}
else
{
    /* update address */
    $this->company->addresses[$address_counter]->setAttributes(
        $this->params['company']['addresses'][$address_counter]
    );
}


if($this->Request->isPost() && $this->company->save())
{
$this->flash['notice'] = $this->t('Company was successfully updated.');
$this->redirectTo(array('action' => 'show', 'id' => $this->company->getId()));
}
    • CommentAuthorKaste
     

    belongs_to doesn't have a 'dependent'-option.

    var $has_many   = array('addresses'=>array('dependent'=>'destroy'));

    $this->company->address->delete(...->build()); is conflicting. the object you want to delete must be an ActiveRecord already created or read from the db.

    something from the ->addresses-collection or from a ->find(id)-operation.

    ...

    •  
      CommentAuthorriffed
     

    I updated the models and stepped through AkHasmany->delete() with a debugger and found that $allow_dependency is always false which prevents $Associated[$k]->destroy() from being called. Not sure why or how to write a test for it.

    Line 303:  $allow_dependency = isset($AssociatedModel->$owner_type->_associatedAs) 
&& $AssociatedModel->$owner_type->_associatedAs == 'belongsTo'
&& $AssociatedModel->$owner_type->getAssociationOption('dependent') ;

    ...

    Line 309: case 'destroy':
Line 310: $success = $allow_dependency && $Associated[$k]->destroy() ? $success : false;
    •  
      CommentAuthorriffed
     

    It looks like the last condtion, && $AssociatedModel->$owner_type->getAssociationOption('dependent') causes the failure, since the owner (belongs_to) does not have a 'dependent' option.

    • CommentAuthorKaste
     

    ouch,

    I had a false positive test on this. thanks for the ticket.

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