Valang error: "Exception thrown and not caught"

[mandarm]

Hi,
I have been using Spring for more than an year now but I am new to Valang validation framework.

Using Spring 2.0 RC3 and Spring modules 0.6, I followed the steps in valang documentation. I am also using the new <form:> tags in my jsps and use sitemesh decorator to decorate the pages.

I get the following javascript error.

"Exception thrown and not caught".

I verified a couple of times to make sure that I have the valang_codebase.js file included, the validate call is inside the form etc.

Any ideas on what I might be missing?

Thanks
Mandar

[Barend]

Try the following:

At around line 119 of the JavaScript file, replace this code:

if (!element || element.tagName.toLowerCase() != 'form') {
      element = document.getElementById(name+'ValangValidator')
  }
if (!element|| element.tagName.toLowerCase() != 'script') {
        throw 'unable to find form with ID \'' + name + '\' or script element with ID \'' + name +'ValangValidator\''
  }

with this code:

if (!element || element.tagName.toLowerCase() != 'form') {
      element = document.getElementById(name+'ValangValidator')
    if (!element|| element.tagName.toLowerCase() != 'script') {
        throw 'unable to find form with ID \'' + name + '\' or script element with ID \'' + name +'ValangValidator\''
    }            
  }

In the original code, it ends up checking a reference to the form element for a 'script' tagname and throwing the 'unable to find form or script element' exception.

[shjejurkar]

I am getting a similar javascript error with client side Valang validation (server side validation works fine). I traced the error to the javascript code generated by valang:codebase tag. I have a input type=button on the page. It is not being handled and that is causing the exception. So I made a modification (as marked by the comment in code - line 351 onwards - below) in valang_codebase.js. However, the javascript generated in the page does not have the modification I made and I still get the error. What I have missed?

        switch (this.type) {
        case 'submit':
        case 'hidden':
        case 'password':
	// added case button to prevent exception being thrown for buttons
	case 'button': 
        //--- end of modification
        case 'text':
            this.getValue = ValangValidator.Field.ValueGetters['textarea'] 
            break
        case 'checkbox':
        case 'radio':
            this.getValue = ValangValidator.Field.ValueGetters['inputSelector'] 
            break
        default:
            throw 'unexpected input field type \'' + this.type + '\''

[shjejurkar]

Never mind. I was including valand_codebase.js and using valang:codebase tag. I removed the tag and it started working properly.