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 use this frequently (simplified):

params.select!{|x| Model.attribute_names.index(x)}
Model.update_attributes(params)