HABTM relation & update_attributes

Hi Phil,
I can't reproduce this behavior locally. Do you have specific validation method somewhere that could be interesting to look at?

Hi Cesario,

The only thing I did not mention is that the users table has been generated by devise. The model looks like this:

class User < ActiveRecord::Base
  has_and_belongs_to_many :roles
  has_many :mailings
  
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable, :lockable and :timeoutable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me
  
  def is?(role)
    self.roles.where(:name => role).exists?
  end
end

I'll try disabling a few options, and maybe it will start working again...

Philippe

Sorry, this was my mistake. I had to add :role_ids in the list of accessible attributes and now it works great.

attr_accessible :email, :password, :password_confirmation, :remember_me, :role_ids

Is there a way of getting an error in such a case? When the :role_ids attribute is not accessible, update_attributes fails without saying anything...