Question

I have a form with 2 selects. Based on the value of the first select, it updates the values of the second select using AJAX. Doing this makes the form not being valid. So, I made the next change:

        $form=$this->getAddTaskForm(); //the form

        if(!$form->isValid($_POST)) {
            $values=$form->getValues();

            //get the options and put them in $options

                $assignMilestone=$form->getElement('assignedMilestone');
                $assignMilestone->addMultiOptions($options);

        }

        if($form->isValid($_POST)) {
               //save in the database
            }else {
               //redisplay the form
            }  

Basically, I check if it is valid and it isn’t if the user changed the value of the first select. I get the options that populated the second select and populate the form with them. Then I try to validate it again. However this doesn’t work. Anybody can explain why? The same “value was not found in the haystack” is present.

Answer 1

You could try to deactivate the validator:

in your Form.php

$field = $this->createElement('select', 'fieldname');
$field->setLabel('Second SELECT');
$field->setRegisterInArrayValidator(false);
$this->addElement($field);

The third line will deactivate the validator and it should work.