Checkboxes doesn't work in modal

[Arpsara]

Hello there!

I had this problem (Dogfalo/materialize#1440), but the trick proposed wasn't enough (thanks to simple form, the 'ids' and 'for' attributes were already filled).

I finally figured out it was because I had several modals with several forms (ex: edit_task_1 ; edit_task_2, etc) and the 'id' of inputs and the attribute 'for' of the labels where the same in the forms (task_user_ids for all of them) and that's why they could not be checked.

I ended up doing something like this:

// In my shared.js.coffee
// Fix for simple form + materialize checkboxes in several modals

$('p.checkbox').each () ->
    form_id  = $(this).closest('form').attr('id')
    input = $(this).children('input')
    label = $(this).children('label')

    input_value = input.val()
    current_input_id = input.attr('id')

    new_name = "#{form_id}_#{current_input_id}_#{input_value}"

    $(input).attr('id', new_name)
    $(label).attr('for', new_name)

Hope it can help someone in the future! :) Would be perfect if we could have it in this gem too! :)

Thanks!