module ActiveRecord
module ActiveRecord::Aggregations
module ActiveRecord::Aggregations::ClassMethods
module ActiveRecord::AssociationPreload
module ActiveRecord::AssociationPreload::ClassMethods
module ActiveRecord::Associations
module ActiveRecord::Associations::ClassMethods
module ActiveRecord::AttributeMethods
module ActiveRecord::AttributeMethods::ClassMethods
module ActiveRecord::AutosaveAssociation
module ActiveRecord::AutosaveAssociation::ClassMethods
module ActiveRecord::Batches
module ActiveRecord::Batches::ClassMethods
module ActiveRecord::Calculations
module ActiveRecord::Calculations::ClassMethods
module ActiveRecord::Callbacks
module ActiveRecord::ConnectionAdapters
module ActiveRecord::ConnectionAdapters::Column::Format
module ActiveRecord::ConnectionAdapters::DatabaseLimits
module ActiveRecord::ConnectionAdapters::DatabaseStatements
module ActiveRecord::ConnectionAdapters::QueryCache
module ActiveRecord::ConnectionAdapters::Quoting
module ActiveRecord::ConnectionAdapters::SchemaStatements
module ActiveRecord::Dirty
module ActiveRecord::Dirty::ClassMethods
module ActiveRecord::Locking
module ActiveRecord::Locking::Optimistic
module ActiveRecord::Locking::Optimistic::ClassMethods
module ActiveRecord::Locking::Pessimistic
module ActiveRecord::NamedScope
module ActiveRecord::NamedScope::ClassMethods
module ActiveRecord::NestedAttributes
module ActiveRecord::NestedAttributes::ClassMethods
module ActiveRecord::Observing
module ActiveRecord::Observing::ClassMethods
module ActiveRecord::QueryCache::ClassMethods
module ActiveRecord::Reflection
module ActiveRecord::Reflection::ClassMethods
module ActiveRecord::Serialization
module ActiveRecord::TestFixtures
module ActiveRecord::TestFixtures::ClassMethods
module ActiveRecord::Timestamp
module ActiveRecord::Transactions
module ActiveRecord::Transactions::ClassMethods
module ActiveRecord::VERSION
module ActiveRecord::Validations
module ActiveRecord::Validations::ClassMethods
module MysqlCompat
module YAML
class ActiveRecord::ActiveRecordError
class ActiveRecord::AdapterNotFound
class ActiveRecord::AdapterNotSpecified
class ActiveRecord::AssociationTypeMismatch
class ActiveRecord::Associations::AssociationCollection
class ActiveRecord::Associations::AssociationProxy
class ActiveRecord::Associations::BelongsToAssociation
class ActiveRecord::Associations::BelongsToPolymorphicAssociation
class ActiveRecord::Associations::ClassMethods::InnerJoinDependency
class ActiveRecord::Associations::ClassMethods::InnerJoinDependency::InnerJoinAssociation
class ActiveRecord::Associations::ClassMethods::JoinDependency
class ActiveRecord::Associations::ClassMethods::JoinDependency::JoinAssociation
class ActiveRecord::Associations::ClassMethods::JoinDependency::JoinBase
class ActiveRecord::Associations::HasAndBelongsToManyAssociation
class ActiveRecord::Associations::HasManyAssociation
class ActiveRecord::Associations::HasManyThroughAssociation
class ActiveRecord::Associations::HasOneAssociation
class ActiveRecord::Associations::HasOneThroughAssociation
class ActiveRecord::AttributeAssignmentError
class ActiveRecord::Base
class ActiveRecord::Base::ConnectionSpecification
class ActiveRecord::ConfigurationError
class ActiveRecord::ConnectionAdapters::AbstractAdapter
class ActiveRecord::ConnectionAdapters::Column
class ActiveRecord::ConnectionAdapters::ColumnDefinition
class ActiveRecord::ConnectionAdapters::ConnectionHandler
class ActiveRecord::ConnectionAdapters::ConnectionManagement
class ActiveRecord::ConnectionAdapters::ConnectionPool
class ActiveRecord::ConnectionAdapters::DeprecatedSQLiteAdapter
class ActiveRecord::ConnectionAdapters::IndexDefinition
class ActiveRecord::ConnectionAdapters::MysqlAdapter
class ActiveRecord::ConnectionAdapters::MysqlColumn
class ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
class ActiveRecord::ConnectionAdapters::PostgreSQLColumn
class ActiveRecord::ConnectionAdapters::SQLite2Adapter
class ActiveRecord::ConnectionAdapters::SQLite3Adapter
class ActiveRecord::ConnectionAdapters::SQLiteAdapter
class ActiveRecord::ConnectionAdapters::SQLiteAdapter::Version
class ActiveRecord::ConnectionAdapters::SQLiteColumn
class ActiveRecord::ConnectionAdapters::Table
class ActiveRecord::ConnectionAdapters::TableDefinition
class ActiveRecord::ConnectionNotEstablished
class ActiveRecord::ConnectionTimeoutError
class ActiveRecord::DangerousAttributeError
class ActiveRecord::DuplicateMigrationNameError
class ActiveRecord::DuplicateMigrationVersionError
class ActiveRecord::DynamicFinderMatch
class ActiveRecord::DynamicScopeMatch
class ActiveRecord::EagerLoadPolymorphicError
class ActiveRecord::Error
class ActiveRecord::Errors
class ActiveRecord::HasAndBelongsToManyAssociationForeignKeyNeeded
class ActiveRecord::HasManyThroughAssociationNotFoundError
class ActiveRecord::HasManyThroughAssociationPointlessSourceTypeError
class ActiveRecord::HasManyThroughAssociationPolymorphicError
class ActiveRecord::HasManyThroughCantAssociateNewRecords
class ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection
class ActiveRecord::HasManyThroughCantDissociateNewRecords
class ActiveRecord::HasManyThroughSourceAssociationMacroError
class ActiveRecord::HasManyThroughSourceAssociationNotFoundError
class ActiveRecord::IllegalMigrationNameError
class ActiveRecord::InverseOfAssociationNotFoundError
class ActiveRecord::IrreversibleMigration
class ActiveRecord::Migration
class ActiveRecord::MigrationProxy
class ActiveRecord::Migrator
class ActiveRecord::MissingAttributeError
class ActiveRecord::MultiparameterAssignmentErrors
class ActiveRecord::NamedScope::Scope
class ActiveRecord::NestedAttributes::TooManyRecords
class ActiveRecord::Observer
class ActiveRecord::PreparedStatementInvalid
class ActiveRecord::QueryCache
class ActiveRecord::ReadOnlyAssociation
class ActiveRecord::ReadOnlyRecord
class ActiveRecord::RecordInvalid
class ActiveRecord::RecordNotFound
class ActiveRecord::RecordNotSaved
class ActiveRecord::Reflection::AggregateReflection
class ActiveRecord::Reflection::AssociationReflection
class ActiveRecord::Reflection::MacroReflection
class ActiveRecord::Reflection::ThroughReflection
class ActiveRecord::Rollback
class ActiveRecord::Schema
class ActiveRecord::SchemaDumper
class ActiveRecord::Serialization::Serializer
class ActiveRecord::SerializationTypeMismatch
class ActiveRecord::SessionStore
class ActiveRecord::SessionStore::Session
class ActiveRecord::SessionStore::SqlBypass
class ActiveRecord::StaleObjectError
class ActiveRecord::StatementInvalid
class ActiveRecord::SubclassNotFound
class ActiveRecord::TestCase
class ActiveRecord::Transactions::TransactionError
class ActiveRecord::UnknownAttributeError
class ActiveRecord::UnknownMigrationVersionError
class ActiveRecord::XmlSerializer
class ActiveRecord::XmlSerializer::Attribute
class ActiveRecord::XmlSerializer::MethodAttribute
class Fixture
class Fixture::FixtureError
class Fixture::FormatError
class FixtureClassNotFound
class Fixtures
class Fixtures::HabtmFixtures
class PGresult
class YAML::Omap
activerecord
2.3.11
# observed_subclasses
def observed_subclasses observed_classes.sum([]) { |klass| klass.send(:subclasses) } end