Rails spinoffs - Feb 2007 - How do I return false so that a form won't submit?

I have the following code that I''m using to validate the form:

         Event.observe(''form'', ''submit'',
function () {
            return (
               check_first_name() && check_last_name() &&
check_username() && check_password() && check_password_confirm()
               );
         });

How do stop the form from submitting if I return false?


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Matt Alexander wrote:
> I have the following code that I''m using to validate the form:
>
>          Event.observe(''form'',
''submit'', function () {
>             return (
>                check_first_name() && check_last_name() &&
> check_username() && check_password() &&
check_password_confirm()
>                );
>          });
>
> How do stop the form from submitting if I return false?
>   
When attaching events via the DOM instead of inline, you need to stop 
events from propagating.  Try Event.stop():

Event.observe(''form'', ''submit'', function
(evt) {
    if ( !(check_first_name() &&
      check_last_name() &&
      check_username() &&
      check_password() &&
      check_password_confirm()) {
      Event.stop(evt);
    }
  }.bindAsEventListener()
});


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That was perfect, thanks!

On Feb 7, 2:50 pm, Ken Snyder
<ksny...-evSXmdsRj0TQT0dZR+AlfA@public.gmane.org>
wrote:
> Matt Alexander wrote:
> > I have the following code that I''m using to validate the
form:
>
> >          Event.observe(''form'',
''submit'', function () {
> >             return (
> >                check_first_name() && check_last_name()
&&
> > check_username() && check_password() &&
check_password_confirm()
> >                );
> >          });
>
> > How do stop the form from submitting if I return false?
>
> When attaching events via the DOM instead of inline, you need to stop
> events from propagating.  Try Event.stop():
>
> Event.observe(''form'', ''submit'',
function (evt) {
>     if ( !(check_first_name() &&
>       check_last_name() &&
>       check_username() &&
>       check_password() &&
>       check_password_confirm()) {
>       Event.stop(evt);
>     }
>   }.bindAsEventListener()
>
> });

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Try it this way:

Event.observe(''form'', ''submit'', function
(evt) { // Added function param
	Event.stop(evt);  // Stop propogation;
             return (
                check_first_name() && check_last_name() &&
check_username() && check_password() && check_password_confirm()
                );
          });

Returning false only works if the function is directly set as the  
event handler, rather than being attached/observed (i.e. $ 
(''form'').onsubmit = function() {return false;}, although using
Event.stop() is not in appropriate in this instance, although you''d  
also need to bindAsEventListener() or implement some other cross- 
browser method of getting the event.

I hope my ramblings make sense.



TAG
tomg-PGZyUNKar/Q@public.gmane.org


On Feb 7, 2007, at 2:39 PM, Matt Alexander wrote:
>
> I have the following code that I''m using to validate the form:
>
>          Event.observe(''form'',
''submit'', function () {
>             return (
>                check_first_name() && check_last_name() &&
> check_username() && check_password() &&
check_password_confirm()
>                );
>          });
>
> How do stop the form from submitting if I return false?
>
>
> >

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