I have a custom admin grid module. When I add an item to that grid it calls the saveAction() in the controller of my module (obviously).

I need to trigger a custom event after the record gets saved (like shown below).

public function saveAction() {
    if ($data = $this->getRequest()->getPost('tendor')) {
    try {
            $tendor = $this->_initTendor();
            $products = $this->getRequest()->getPost('products', -1);
            if ($products != -1) {
            // custom event to save vendor code
            $evtData = array('tendor_info' => $data, 'tendor_instance' => $tendor);
            Mage::dispatchEvent('my_custom_tendor_save_after', $evtData);

Now I want this event to be triggered only when a new record is added and not when the existing record is edited.

How can I find the difference between creation of record and updation of a record?

can someone help me in figuring this out?

1 Answer 1


You have this line in your controller:

$tendor = $this->_initTendor();

I can only assume that this takes the id parameter from _GET and loads the appropriate entity from the db. You can add this line right below the line I mentioned:

$shouldDispatchEvent = !(bool)($tendor->getId());

$shouldDispatchEvent is true only if the $tendor object has an id.
Now wrap your dispatchEvent in this:

if ($shouldDispatchEvent){
    $evtData = array('tendor_info' => $data, 'tendor_instance' => $tendor);
    Mage::dispatchEvent('my_custom_tendor_save_after', $evtData);

An other way of doing it, in your case could be this:

if ($tendor->isObjectNew()){
    $evtData = array('tendor_info' => $data, 'tendor_instance' => $tendor);
    Mage::dispatchEvent('my_custom_tendor_save_after', $evtData);

This will work if your model extends Mage_Core_Model_Abstract (and it should).
the member _isObjectNew is added to the model instance in the _beforeSave (see Mage_Core_Model_Abstract::_beforeSave()) method, and since you want to dispatch your event after the save is done you should be able to access it.

  • 1
    You are too fast for me. I'll stop writing my answer now :-/ Oct 30, 2013 at 11:29
  • 1
    @FabianBlechschmidt. I still say you should add it. It will improve the answer ratio for this website and maybe you explain it better.
    – Marius
    Oct 30, 2013 at 11:35
  • Thumbs Up for isObjectNew() !
    – Shathish
    Oct 30, 2013 at 11:37

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