Zend_form_element_select onchange in zend framework

Question

I have a form named createDevice.php as:

class Admin_Form_CreateDevice extends Zend_Form
{
public function init()
{
    $this->setName('Create Device Access');
    $sort=new Zend_Form_Element_Select('employee_name');
    $sort->setLabel('Employee Name:');
    $this->addElements(array($sort));
    /* Form Elements & Other Definitions Here ... */
}

}

Now In controller action named viewDeviceAction() I have called this form as:

public function viewDeviceAction()
{
    echo 'viewDevice: ';
    $form_device=new Admin_Form_CreateDevice();
    $form_device->setMethod('post');
    $form_device->employee_name->addMultiOptions($aMembers);//here $aMembers is an array.
    $this->view->form=$form_device;
 }

Now I want following situation: On selecting any value from above dropdown a javascript function (which resides in viewDevice.phtml ) should be called.Like in general html as:

<select id="EmployeeId" onchange="loadDeviceId();">

So I just want to khow that how to implement the onchange event on the select element in zend framework

Community · Accepted Answer · 2017-05-23 11:50:32Z

3

That is possible to add in the server side itself. While creating your element, add the details for the onchange event like shown below.

$sort=new Zend_Form_Element_Select('employee_name',array('onchange' => 'loadDeviceId();'));

Now in your output HTML, you will see "onchange = 'loadDeviceId();'" attached to your select element.

Check my answer in an other question.

edited May 23, 2017 at 11:50

CommunityBot

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answered Dec 27, 2011 at 16:26

Raj

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5 Comments

ryan Over a year ago

here I did the same thing but when I click on any option of select , javascript function is not called and that page reloads again but no javascript function is called. Why this is occuring?When I see the page source its right as it shows: <select name="employee_name" id="employee_name" onchange="submit();">Plz suggest me.

Raj Over a year ago

did u check in Firebug? what is the code inside submit javascript function?

ryan Over a year ago

Yup I checked in firebug and on change it is not going in javascript function.This function has an alert.

ryan Over a year ago

Now What I did instead of echo $this->form I just copy the view source of that page and copied into phtml file and when I eliminate form tag it is actually going into javascript function here form tag is as follows: <form id="create device access" name="create device access" action="" method="post" enctype="application/x-www-form-urlencoded"> after removing form tag javascript function runs.Why??I think in my opinion since there is no action thats why form reloads.But I have to call javascript function.Now what has to be done??

Raj Over a year ago

you can echo only the select element like echo $sort; form tag wont appear in the HTML code

Songo · Accepted Answer · 2011-12-27 22:24:53Z

0

Since you want to implement an event handler for the onChangeevent you will have to do it in javascript. ~~There is no native way to implement it in PHP or Zend framework as far as I know.~~

Using JQuery you could do something like this:

$('#employee_name').change(function() 
{
   //call your javascript function here
});

You can even call your function directly like this:

$('#employee_name').change(yourFunctionName);

Hope that helps you.

edited Dec 27, 2011 at 22:24

answered Dec 27, 2011 at 14:24

Songo

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4 Comments

ryan Over a year ago

I know how to implement javascript with jquery and all.But the thing is that How I have to call that javascript function on selecting any value from dropdown?and that dropdown is made in Zend_form.

Songo Over a year ago

Sorry, but I don't get your problem. The element you created in Zend form has an id of "employee_name". You can use this id to attach the event handler to the form element. In my example if a change event is fired on the "employee_name" a callback function (yourFunctionName) will be executed.

Salman Over a year ago

It is actually possible to add the onChange attribute in the form class itself, see @emaillenin's answer.

Songo Over a year ago

@Salman Thanks for the notifier. Actually I didn't quite get what he was trying to do, but after seeing his modified post I realized that emaillenin's answer was the correct solution.

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