Ruby on Rails

Hi,

I have an Ajax form, which I want to prevent from being submitted if a condition matched. Here is the code I have:

$(document).on 'page:update', (event) ->
$('#distribution_list').on 'ajax:before', (xhr, settings) ->
users = ($(user).data("id") for user in $(@).find("ul.active-users li.user.new:not(.external-user) div.template-user"))
xhr.abort() if users.length is 0
$(@).find("input.user-ids[type='hidden']").val( JSON.stringify(users) )

Now when I am submutting the form, it is doing some unexpected to stuff when the condition matched. Here goes the log:

Started PATCH "/distribution_lists/1" for 127.0.0.1 at 2015-10-18 13:43:04 +0530
Processing by DistributionListsController#update as HTML
Parameters: {"utf8"=>"✓", "distribution_list"=>{"names"=>"1", "name"=>"all@all", "user_ids"=>"1 2"}, "commit"=>"Save List", "id"=>"1"}
Can't verify CSRF token authenticity
Completed 422 Unprocessable Entity in 2ms (ActiveRecord: 0.0ms)
[Rollbar] Reporting exception: ActionController::InvalidAuthenticityToken
[Rollbar] Exception not reported because Rollbar is disabled


Any idea, how to achieve what I am trying to do ?

--
================
Regards,
Arup Rakshit
================
Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.

--Brian Kernighan

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