I have written the following piece of code in my view page
<script type="text/javascript">
function filldetails()
{
document.getElementById('FirstName').value = "hjshjsh";
}
</script>
echo $this->Form->select('students',$student_name,array('onchange' =>filldetails()));
but i am getting an error message
call to undefined function filldetails()
How do I solve this error?
it should be 'onchange' => 'filldetails()'
Unless your project has a specific reason to avoid JS frameworks, you will avoid a lot of long-term headaches by using jQuery instead of pure Javascript.
Rewrite your view thus:
<?php
$selectDomId = $this->Form->domId('students');
$firstnameDomId = $this->Form->domId('Student.first_name');
$this->Html->scriptBlock("
jQuery(function($){
$('#{$selectDomId}').change(function(event){
$('#{$firstnameDomId}').val( $(this).val() );
});
});
",array('inline'=>false));
?>
<?php echo $this->Form->select('students',$student_name,$this->Form->domId(array(),'students'))?>
<?php echo $this->Form->input('Student.first_name')?>
The jQuery takes care of the onChange event handler, so it doesn't clutter your HTML, by hooking onto your dropdown menu's change event.
The use of Helper::domId means you don't have to worry about how CakePHP's helpers generate their id attributes, which is a net win in reliability and maintainability.
filledetailsis being called, it would suggest that you haven't defined it properly. Can you provide more information on where you've defined the filldetails() function and ensure that it's wrapped in<script type="text/javascript"></script>. I don't think it's a cake php error per se