well... i had to create my own custom validation class for my magento extension because the client said that.
'For Video title- it should accept alphabets[A-Za-z], numerics and also special charater "Space" , and also it should not start with number'.
since changing core file is a bad habit , so i created my own js file and add my custom validation class.But first let me tell u how u can do it fast by modifying core file.
//BAD BUT FAST WAY...
open js/prototype/validation.js
some where at line 479-771, u will see lots of validation classess that magento uses. U can define your own validation class like i did.
I added below code after line 489.
['validate-alphanum-with-spaces-char-first', 'Please use only letters (a-z or A-Z), numbers (0-9) or spaces only in this field, first character should be a letter.', function(v) {
return Validation.get('IsEmpty').test(v) || /^[a-z]+[a-z0-9 ]+$/.test(v)
}],
//NOW THE STANDARD WAY....
1. add your custom js file to the module.
in my case it was video edit section in admin:
app/design/adminhtml/default/default/layout/mymod_video.xml
<layout>
<adminhtml_video_video_edit>
<reference name="head">
<action method="addJs"><script>alfasoft/videoext/myvalidation.js</script></action>
</reference>
<reference name="content">
....
</reference>
<reference name="left">
....
</reference>
</adminhtml_video_video_edit>
</layout>
2. upload your js i.e. myvalidation.js to the location js/alfasoft/videoext/
3. Add your code to myvalidation.js
if(Validation)
{
Validation.addAllThese([
['validate-alphanum-with-spaces-char-first', 'Please use only letters (a-z or A-Z), numbers (0-9) or spaces only in this field, first character should be a letter.', function(v) {
return Validation.get('IsEmpty').test(v) || /^[a-z]+[a-z0-9 ]+$/.test(v)
}] // this is my validation requirement, your could be anything else.
]);
}
now look at the code. according to my requirement.
>the regular expression fit the best /^[a-z]+[a-z0-9 ]+$/.test(v) . your could be anything else.
>here my validation class name is 'validate-alphanum-with-spaces-char-first'.
>And my error message is:
'Please use only letters (a-z or A-Z), numbers (0-9) or spaces only in this field, first character should be a letter.'
Use your class in the form:
mine path was:
app/code/community/Alfasft/Video/Block/Adminhtml/Video/Edit/Tab/Form.php
$fieldset->addField('vtitle', 'text', array(
'label' => Mage::helper('video')->__('Video Title'),
'name' => 'vtitle',
'required' => true,
'class' => 'required-entry validate-alphanum-with-spaces-char-first',
));
//I have assign this class to the field 'vtitle'.
