Can't mass-assign protected attributes even if I use attr_accessible


I'm working on a Rails 3.2.2 application which has JSON APIs and I use a
CLI client for inserting some data. It works fine except for the Author
model. When I try to create a new post (Post belongs_to :author and
Author has_many :posts) I get the following error :

      ActiveModel::MassAssignmentSecurity::Error in
    <pre>Can't mass-assign protected attributes: name</pre>

I did lots of searches on the topic but I found no working solution :frowning:

I use attr_accessible to avoid MassAssignent errors and it works for all
others models but not for the "Author" name attribute.

Here is the Author model :

    class Author < ActiveRecord::Base
      attr_accessible :name, :email

      extend FriendlyId
      friendly_id :name, use: :slugged

      # some validations

      has_many :posts

      # some stuffs

Actually, I have disabled whitelist_attributes and it solved my problem
but I suppose that is not the convenient way to do this (and probably
not a good idea).

My question is : Why the attr_accessible does not work here ? And how
can I solve the problem without disabling the whitelist ?

Thank you,


I found the solution ! :slight_smile:

The problem was that I used acts_as_taggable_on_steroids plugin which
does not work on Rails 3.2 ...

Since "Author" is the only model which has a :name attribute, I thought
that the problem came from Author ... but the problem was in the Tag
model (which is in the acts_as_taggable_on_steroid plugin). Indeed, its
:name attribute is not "accessible".

So, I use the acts_as_taggable_on gem
( which correctly works
on Rails 3.x