active_record.rb

#--
# Copyright (c) 2004-2012 David Heinemeier Hansson
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#++

require 'active_support'
require 'active_support/rails'
require 'active_model'
require 'arel'
require 'active_record/deprecated_finders'

require 'active_record/version'

module ActiveRecord
  extend ActiveSupport::Autoload

  autoload :Base
  autoload :Callbacks
  autoload :Core
  autoload :CounterCache
  autoload :ConnectionHandling
  autoload :DynamicMatchers
  autoload :Explain
  autoload :Inheritance
  autoload :Integration
  autoload :Migration
  autoload :Migrator, 'active_record/migration'
  autoload :Model
  autoload :ModelSchema
  autoload :NestedAttributes
  autoload :Observer
  autoload :Persistence
  autoload :QueryCache
  autoload :Querying
  autoload :ReadonlyAttributes
  autoload :Reflection
  autoload :Sanitization
  autoload :Schema
  autoload :SchemaDumper
  autoload :SchemaMigration
  autoload :Scoping
  autoload :Serialization
  autoload :Store
  autoload :Timestamp
  autoload :Transactions
  autoload :Translation
  autoload :Validations

  eager_autoload do
    autoload :ActiveRecordError, 'active_record/errors'
    autoload :ConnectionNotEstablished, 'active_record/errors'
    autoload :ConnectionAdapters, 'active_record/connection_adapters/abstract_adapter'

    autoload :Aggregations
    autoload :Associations
    autoload :AttributeMethods
    autoload :AttributeAssignment
    autoload :AutosaveAssociation

    autoload :Relation
    autoload :NullRelation

    autoload_under 'relation' do
      autoload :QueryMethods
      autoload :FinderMethods
      autoload :Calculations
      autoload :PredicateBuilder
      autoload :SpawnMethods
      autoload :Batches
      autoload :Delegation
    end

    autoload :Result
  end

  module Coders
    autoload :YAMLColumn, 'active_record/coders/yaml_column'
  end

  module AttributeMethods
    extend ActiveSupport::Autoload

    eager_autoload do
      autoload :BeforeTypeCast
      autoload :Dirty
      autoload :PrimaryKey
      autoload :Query
      autoload :Read
      autoload :TimeZoneConversion
      autoload :Write
      autoload :Serialization
    end
  end

  module Locking
    extend ActiveSupport::Autoload

    eager_autoload do
      autoload :Optimistic
      autoload :Pessimistic
    end
  end

  module ConnectionAdapters
    extend ActiveSupport::Autoload

    eager_autoload do
      autoload :AbstractAdapter
      autoload :ConnectionManagement, "active_record/connection_adapters/abstract/connection_pool"
    end
  end

  module Scoping
    extend ActiveSupport::Autoload

    eager_autoload do
      autoload :Named
      autoload :Default
    end
  end

  module Tasks
    extend ActiveSupport::Autoload

    autoload :DatabaseTasks
    autoload :SQLiteDatabaseTasks, 'active_record/tasks/sqlite_database_tasks'
    autoload :MySQLDatabaseTasks,  'active_record/tasks/mysql_database_tasks'
    autoload :PostgreSQLDatabaseTasks,
      'active_record/tasks/postgresql_database_tasks'
  end

  autoload :TestCase
  autoload :TestFixtures, 'active_record/fixtures'

  def self.eager_load!
    super
    ActiveRecord::Locking.eager_load!
    ActiveRecord::Scoping.eager_load!
    ActiveRecord::Associations.eager_load!
    ActiveRecord::AttributeMethods.eager_load!
    ActiveRecord::ConnectionAdapters.eager_load!
  end
end

ActiveSupport.on_load(:active_record) do
  Arel::Table.engine = self
end

ActiveSupport.on_load(:i18n) do
  I18n.load_path << File.dirname(__FILE__) + '/active_record/locale/en.yml'
end