Ruby on Rails

On Mon, May 30, 2011 at 6:27 PM, Jason Fleetwood-Boldt <tech@datatravels.com> wrote:

On May 30, 2011, at 6:27 PM, David Kahn wrote:

<div class="ui-field-contain ui-body ui-br" data-role="fieldcontain">

<fieldset class="ui-corner-all ui-controlgroup ui-controlgroup-vertical" data-role="controlgroup">

<div class="ui-checkbox">

    <input id="foo_bar_ids_" type="checkbox" value="19" name="link[bar_ids][]" checked="checked">

</div>

     <label for="19">Jquery</label>

<div class="ui-checkbox">

   <input id="foo_bar_ids_" type="checkbox" value="25" name="foo[bar_ids][]" checked="checked">

</div>

    <label for="25">Web</label>

</fieldset>

</div>

David,

I think I see your problem. The for attribute of the label tag has to match the id attribute of the input checkbox. You have two input checkboxes with ids of "foo_bar_ids_" -- that's not really allowed by HTML, you should make that be "foo_bar_ids_19" and "foo_bar_ids_25"

The for of the label tag should match the id of the input tag -- this is actually how HTML works and has nothing to do with rails (see http://www.w3schools.com/tags/tag_label.asp). I always thought that was counter intuitive myself but that's how it works. 

To do that, you specify :id => in the check_box_tag and also :for => label_tag (you happen to not be using label_tag, but if you were you could specify :id => )

Personally I never use HABTM, because I always find I'm going to eventually want to add a field to the join table which you can't do with HABTM. Use has_many :through => instead of HABTM. (but that is actually irrelevant to the problme you have)

Thats a good point... I just got killed by using HABTM and ended up creating a join model. Especially if you are dealing with nested forms and want to create the join record specifically based on data in the form.
 

-Jason

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