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 came up with a solution that looks like this, you might find it helpful:

def self.create_from_hash(hash)
  hash.select! {|k, v| self.column_names.include? k }
  self.create(hash)
end

This was an ideal solution for me, because in my case hash was coming from an ideal data source which mirrored my schema (except there were additional fields).