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General questions about getting started with SilverStripe that don't fit in any of the categories above.

Moderators: martimiz, Sean, biapar, Willr, Ingo, swaiba, simon_w

Returning a custom error in ModelAdmin


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5 Posts   1801 Views

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AdamJ

Community Member, 145 Posts

26 May 2011 at 12:51am

I'm have an onBeforeWrite function that if a checkbox is checked in that class, it checks some criteria in the relationships and if that returns in the negative, blocks the save and returns an error message using the following:

user_error('Products can not be marked for sale without active variants', E_USER_ERROR);
exit();

From Firebug I can see that this line works as it returns the ajax save request with the error and a code of 500 Error. What I want to do though is have that error displayed to the user in the little javascript notification in the bottom left corner of the panel that default actions use. Is there a way to hook into that?

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swaiba

Forum Moderator, 1805 Posts

26 May 2011 at 1:11am

Edited: 28/03/2013 12:01pm

Here is how I do custom validation within ModelAdmin... hope it helps...

class MyDataObject extends DataObject {
...
   function getCMSValidator() {
      return new MyDataObject_Validator();
   }
...
}

class MyDataObject_Validator extends RequiredFields {
   function php($data) {
      $bRet = parent::php($data);

      if (empty($data['FieldName'])) {
         $this->validationError('FieldName','FieldName is required',"required");
         $bRet = false;
      }

      return $bRet;
   }
}

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JonoM

Community Member, 103 Posts

28 March 2013 at 7:13am

Thank you Swaiba! This helped me a lot today. I just had to change '$obj' to '$this' to get it to work.

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swaiba

Forum Moderator, 1805 Posts

28 March 2013 at 7:24am

No Problem...

One other tip is to add this as well this then covers the validators use in a CTF popup too

function getValidator() {
   return new MyDataObject_Validator();
}

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JonoM

Community Member, 103 Posts

28 March 2013 at 7:46am

Ah sweet, cheers!