Rails: Ignoring non-existant attributes passed to create()

Question

I have the following Rails model:

class CreateFoo < ActiveRecord::Migration
  def self.up
    create_table :foo do |t|
      t.string :a
      t.string :b
            


        

Answer 1

I just had this exact problem upgrading to Rails 3.2, when I set:

config.active_record.mass_assignment_sanitizer = :strict

It caused some of my create! calls to fail, since fields that were previously ignored are now causing mass assignment errors. I worked around it by faking the fields in the model as follows:

attr_accessor   :field_to_exclude
attr_accessible :field_to_exclude