Rails 4 - update_attributes not updating

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I have the following form:

<%= form_for @user, :html => {:class => 'edit-form' }, :url => {:action => 'add_group', :id => @user.id }, :remote => true do |f| %>
  <%= f.select :group_ids, Group.all.collect {|x| [x.name, x.id]}, {}, :class => 'multiselect', :multiple => true %>
  <button type="submit" id="submit_it" class="btn btn-primary">Submit</button>
<% end %>

And in my controller:

 def add_group 
    @user = User.find(params[:id])
    unless @user.update_attributes(option_params)
        respond_to do |format|
            format.html
            format.js
        end
     end
end

def option_params
     params.require(:user).permit!
end 

And thus, when the form is submitted, I do get a response with my "update.js.erb" file, and the following shows up in the console:

Started PATCH "/user_management/add_group?id=41" for 123.45.67.89 at 2014-07-07 22:58:38 +0000
 Processing by UserController#update as JS
 Parameters: {"utf8"=>"✓", "user"=>{"group_ids"=>["", "3", "4"]}, "multiselect"=>"4", "id"=>"add_group"}
 Rendered user/update.js.erb (0.1ms)
 Completed 200 OK in 13ms (Views: 11.9ms | ActiveRecord: 0.0ms)

But, nothing actually gets updated in the database.

There are no validations in my model that would be causing this not to update.

My model relationships are such:

  class User < ActiveRecord::Base
    has_many :group_assignments
    has_many :groups, through: :group_assignments
  end

  class Group < ActiveRecord::Base
    has_many :group_assignments
    has_many :users, through: :group_assignments
  end

  class GroupAssignment < ActiveRecord::Base
    belongs_to :group 
    belongs_to :user
  end

Any ideas on why this would not be updating?

asked 33 secs ago

Dodinas

1,290