Prototype has a method for what you are trying called any()
http://api.prototypejs.org/language/Enumerable/prototype/any/
you create an iterator function and pass it to any
var elmName = "input:checkbox[name='" +element.name +"']";
var bChecked = false; // not validated
var anychecked = $$(elmName).any(function(n) {
return n.checked;
});
anychecked will be true or false
Jason Westbrook | T: 313-799-3770 | [email protected]
On Mon, Apr 1, 2013 at 10:49 AM, Phil Petree <[email protected]> wrote:
> // this works with names that contain spaces and arrays[]...
>
> Validation.add('validate-one-array', 'Error message text', function(value,
> element) {
> var elmName = "input:checkbox[name='" +element.name +"']";
> var bChecked = false; // not validated
> $$(elmName).each(function(elm) {
> if( $(elm).checked )
> bChecked = true; // if one is checked, we validated
> });
> return bChecked;
> });
>
>
> On Mon, Apr 1, 2013 at 1:15 PM, Jason Westbrook <[email protected]>wrote:
>
>> typically when I build forms like that I have a database that is giving
>> me all the data so I only have to update the loop once for all the
>> checkboxes :-)
>>
>> but yes you can use the $$() Selector method to use the names - I think
>> you have to do it this way though
>>
>> $$("input[name='kitcat[]']:checked") //but I'm not sure how Sizzle
>> will handle the bracket in the name
>> or
>> $("input[name^='kitcat']:checked") //this is probably more safe but
>> it will match more elements as it gets all elements that have a name
>> attribute that starts with "kitcat" (starts with is ^= instead of =)
>>
>>
>>
>> Jason Westbrook | T: 313-799-3770 | [email protected]
>>
>>
>> On Sun, Mar 31, 2013 at 11:46 AM, Phil Petree <[email protected]>wrote:
>>
>>> Hey Jason... I guess the rest of the group are all slugs! How dare they
>>> take Easer off! LOL
>>>
>>> I had kinda come to the same conclusion... what I implemented was:
>>> if($$('input:checked').length > 0)
>>> return true;
>>> This kind of works because the ONLY input on this page are checkboxes
>>> (think of a wizard) but I was really looking to pass names (kitcat[]) in so
>>> that it could be more flexible and accomodate future mods.
>>>
>>> In your method, I need to mod all 17 checkboxes to include the same
>>> class name which is currently: "validate-onein-group"
>>>
>>> Is there a way to collect all checkboxes with the same name?
>>>
>>>
>>> On Sun, Mar 31, 2013 at 11:54 AM, Jason Westbrook
>>> <[email protected]>wrote:
>>>
>>>> Try adding a separate class to all of your checkboxes that are in the
>>>> group and then do this
>>>>
>>>> if( $$('.groupchecks:checked').length == 0 )
>>>> {
>>>> //no checked checkboxes
>>>>
>>>> {
>>>>
>>>> Jason Westbrook | T: 313-799-3770 | [email protected]
>>>>
>>>>
>>>> On Sun, Mar 31, 2013 at 8:30 AM, Phil Petree <[email protected]>wrote:
>>>>
>>>>> Happy Easter!
>>>>>
>>>>> I have an array of checkboxes on a form (about 15 of them) arranged in
>>>>> rows like this:
>>>>> <tr><td><input type='checkbox' name='kitcat[]'
>>>>> ...></td><td>name</td><td>description</td></tr>
>>>>>
>>>>> What I have been trying to use is this:
>>>>> $("input:checkbox[name=kitcat]:checked").each(function() {
>>>>> // if one is checked, we validated
>>>>> return true;
>>>>> });
>>>>>
>>>>> What I'm getting is an error saying: Unable to get value of the
>>>>> property 'each': object is null or undefined
>>>>>
>>>>> What's the trick to this?
>>>>>
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