db/migrate/20150310163429_rename_association_to_associated.rb
class RenameAssociationToAssociated < ActiveRecord::Migration
def self.up
if index_exists? :audits, [:association_id, :association_type], :name => 'association_index'
remove_index :audits, :name => 'association_index'
end
rename_column :audits, :association_id, :associated_id
rename_column :audits, :association_type, :associated_type
add_index :audits, [:associated_id, :associated_type], :name => 'associated_index'
end
def self.down
if index_exists? :audits, [:associated_id, :associated_type], :name => 'associated_index'
remove_index :audits, :name => 'associated_index'
end
rename_column :audits, :associated_type, :association_type
rename_column :audits, :associated_id, :association_id
add_index :audits, [:association_id, :association_type], :name => 'association_index'
end
end