Contents

module LetsMigrateThis
  module MigrateClassMethods
    def port_to_polymorphic_association
      all.each do |mailing|
        parts = mailing[:mailable].split(/_/)
        mailing[:mailable_id] = parts.pop
        mailing[:mailable_type] = parts.join('_')
        mailing.save
      end
    end
  end
end

MlmMailing.extend(LetsMigrateThis::MigrateClassMethods)

class MailableAsPolymorphic < ActiveRecord::Migration
  def self.up
    add_column :mlm_mailings, :mailable_type, :string
    add_column :mlm_mailings, :mailable_id, :integer
    add_column :mlm_mailings, :mlm_mailable_id, :integer
    MlmMailing.port_to_polymorphic_association
    remove_column :mlm_mailings, :mailable
  end

  def self.down
  end
end

Version data entries

15 entries across 15 versions & 1 rubygems

Version	Path
mail_manager-3.2.25.1	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.22.0	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.7	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.6	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.5	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.4	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.2	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.1	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.2.0	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-3.0.0	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-0.1.4	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-0.1.2	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-0.1.1	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-0.1.0	db/mlm_migrate/002_mailable_as_polymorphic.rb
mail_manager-0.0.1	db/mlm_migrate/002_mailable_as_polymorphic.rb