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ActiveRecordTop Level Namespace
- ActiveRecordError < StandardErrorActiveRecord
- AdapterNotFound < ActiveRecordErrorActiveRecord
- AdapterNotSpecified < ActiveRecordErrorActiveRecord
- AggregationsActiveRecord
  - ClassMethodsActiveRecord::Aggregations
- AmbiguousSourceReflectionForThroughAssociation < ActiveRecordErrorActiveRecord
- AssociationNotFoundError < ConfigurationErrorActiveRecord
- AssociationRelation < RelationActiveRecord
- AssociationTypeMismatch < ActiveRecordErrorActiveRecord
- AssociationsActiveRecord
  - AliasTracker < ObjectActiveRecord::Associations
  - Association < ObjectActiveRecord::Associations
  - AssociationScope < ObjectActiveRecord::Associations
    - ReflectionProxy < SimpleDelegatorActiveRecord::Associations::AssociationScope
  - BelongsToAssociation < SingularAssociationActiveRecord::Associations
  - BelongsToPolymorphicAssociation < BelongsToAssociationActiveRecord::Associations
  - BuilderActiveRecord::Associations
    - Association < ObjectActiveRecord::Associations::Builder
    - BelongsTo < SingularAssociationActiveRecord::Associations::Builder
    - CollectionAssociation < AssociationActiveRecord::Associations::Builder
    - HasAndBelongsToMany < ObjectActiveRecord::Associations::Builder
      - JoinTableResolver < ObjectActiveRecord::Associations::Builder::HasAndBelongsToMany
        KnownClass < ObjectActiveRecord::Associations::Builder::HasAndBelongsToMany::JoinTableResolver
        KnownTable < StructActiveRecord::Associations::Builder::HasAndBelongsToMany::JoinTableResolver
    - HasMany < CollectionAssociationActiveRecord::Associations::Builder
    - HasOne < SingularAssociationActiveRecord::Associations::Builder
    - SingularAssociation < AssociationActiveRecord::Associations::Builder
  - ClassMethodsActiveRecord::Associations
  - CollectionAssociation < AssociationActiveRecord::Associations
  - CollectionProxy < RelationActiveRecord::Associations
  - ForeignAssociationActiveRecord::Associations
  - HasManyAssociation < CollectionAssociationActiveRecord::Associations
  - HasManyThroughAssociation < HasManyAssociationActiveRecord::Associations
  - HasOneAssociation < SingularAssociationActiveRecord::Associations
  - HasOneThroughAssociation < HasOneAssociationActiveRecord::Associations
  - JoinDependency < ObjectActiveRecord::Associations
    - Aliases < ObjectActiveRecord::Associations::JoinDependency
      - Column < StructActiveRecord::Associations::JoinDependency::Aliases
      - Table < StructActiveRecord::Associations::JoinDependency::Aliases
    - JoinAssociation < JoinPartActiveRecord::Associations::JoinDependency
    - JoinBase < JoinPartActiveRecord::Associations::JoinDependency
    - JoinPart < ObjectActiveRecord::Associations::JoinDependency
  - Preloader < ObjectActiveRecord::Associations
    - AlreadyLoaded < ObjectActiveRecord::Associations::Preloader
    - Association < ObjectActiveRecord::Associations::Preloader
    - ThroughAssociation < AssociationActiveRecord::Associations::Preloader
  - SingularAssociation < AssociationActiveRecord::Associations
  - ThroughAssociationActiveRecord::Associations
- AttributeAssignmentActiveRecord
- AttributeAssignmentError < ActiveRecordErrorActiveRecord
- AttributeDecoratorsActiveRecord
  - ClassMethodsActiveRecord::AttributeDecorators
  - TypeDecorator < ObjectActiveRecord::AttributeDecorators
- AttributeMethodsActiveRecord
  - BeforeTypeCastActiveRecord::AttributeMethods
  - ClassMethodsActiveRecord::AttributeMethods
  - DirtyActiveRecord::AttributeMethods
  - GeneratedAttributeMethods < ModuleActiveRecord::AttributeMethods
  - PrimaryKeyActiveRecord::AttributeMethods
    - ClassMethodsActiveRecord::AttributeMethods::PrimaryKey
  - QueryActiveRecord::AttributeMethods
  - ReadActiveRecord::AttributeMethods
    - ClassMethodsActiveRecord::AttributeMethods::Read
  - SerializationActiveRecord::AttributeMethods
    - ClassMethodsActiveRecord::AttributeMethods::Serialization
    - ColumnNotSerializableError < StandardErrorActiveRecord::AttributeMethods::Serialization
  - TimeZoneConversionActiveRecord::AttributeMethods
    - ClassMethodsActiveRecord::AttributeMethods::TimeZoneConversion
    - TimeZoneConverter < ValueActiveRecord::AttributeMethods::TimeZoneConversion
  - WriteActiveRecord::AttributeMethods
    - ClassMethodsActiveRecord::AttributeMethods::Write
- AttributesActiveRecord
  - ClassMethodsActiveRecord::Attributes
- AutosaveAssociationActiveRecord
  - AssociationBuilderExtensionActiveRecord::AutosaveAssociation
  - ClassMethodsActiveRecord::AutosaveAssociation
- Base < ObjectActiveRecord
- BatchesActiveRecord
  - BatchEnumerator < ObjectActiveRecord::Batches
- CalculationsActiveRecord
- CallbacksActiveRecord
- CodersActiveRecord
  - JSON < ObjectActiveRecord::Coders
  - YAMLColumn < ObjectActiveRecord::Coders
- CollectionCacheKeyActiveRecord
- ConcurrentMigrationError < MigrationErrorActiveRecord
- ConfigurationError < ActiveRecordErrorActiveRecord
- ConnectionAdaptersActiveRecord
  - AbstractAdapter < ObjectActiveRecord::ConnectionAdapters
    - SchemaCreation < ObjectActiveRecord::ConnectionAdapters::AbstractAdapter
    - Version < ObjectActiveRecord::ConnectionAdapters::AbstractAdapter
  - AbstractMysqlAdapter < AbstractAdapterActiveRecord::ConnectionAdapters
    - MysqlString < StringActiveRecord::ConnectionAdapters::AbstractMysqlAdapter
    - StatementPool < StatementPoolActiveRecord::ConnectionAdapters::AbstractMysqlAdapter
  - AddColumnDefinition < StructActiveRecord::ConnectionAdapters
  - AlterTable < ObjectActiveRecord::ConnectionAdapters
  - ChangeColumnDefinition < StructActiveRecord::ConnectionAdapters
  - Column < ObjectActiveRecord::ConnectionAdapters
  - ColumnDefinition < StructActiveRecord::ConnectionAdapters
  - ColumnMethodsActiveRecord::ConnectionAdapters
  - ConnectionHandler < ObjectActiveRecord::ConnectionAdapters
  - ConnectionPool < ObjectActiveRecord::ConnectionAdapters
    - BiasableQueueActiveRecord::ConnectionAdapters::ConnectionPool
      - BiasedConditionVariable < ObjectActiveRecord::ConnectionAdapters::ConnectionPool::BiasableQueue
    - ConnectionLeasingQueue < QueueActiveRecord::ConnectionAdapters::ConnectionPool
    - Queue < ObjectActiveRecord::ConnectionAdapters::ConnectionPool
    - Reaper < ObjectActiveRecord::ConnectionAdapters::ConnectionPool
  - ConnectionSpecification < ObjectActiveRecord::ConnectionAdapters
    - ConnectionUrlResolver < ObjectActiveRecord::ConnectionAdapters::ConnectionSpecification
    - Resolver < ObjectActiveRecord::ConnectionAdapters::ConnectionSpecification
  - DatabaseLimitsActiveRecord::ConnectionAdapters
  - DatabaseStatementsActiveRecord::ConnectionAdapters
    - PartialQueryCollector < ObjectActiveRecord::ConnectionAdapters::DatabaseStatements
  - DetermineIfPreparableVisitorActiveRecord::ConnectionAdapters
  - ForeignKeyDefinition < StructActiveRecord::ConnectionAdapters
  - IndexDefinition < ObjectActiveRecord::ConnectionAdapters
  - MySQLActiveRecord::ConnectionAdapters
    - Column < ColumnActiveRecord::ConnectionAdapters::MySQL
    - ColumnMethodsActiveRecord::ConnectionAdapters::MySQL
    - DatabaseStatementsActiveRecord::ConnectionAdapters::MySQL
    - ExplainPrettyPrinter < ObjectActiveRecord::ConnectionAdapters::MySQL
    - QuotingActiveRecord::ConnectionAdapters::MySQL
    - SchemaCreation < SchemaCreationActiveRecord::ConnectionAdapters::MySQL
    - SchemaDumper < SchemaDumperActiveRecord::ConnectionAdapters::MySQL
    - SchemaStatementsActiveRecord::ConnectionAdapters::MySQL
    - Table < TableActiveRecord::ConnectionAdapters::MySQL
    - TableDefinition < TableDefinitionActiveRecord::ConnectionAdapters::MySQL
    - TypeMetadata < SqlTypeMetadataActiveRecord::ConnectionAdapters::MySQL
  - Mysql2Adapter < AbstractMysqlAdapterActiveRecord::ConnectionAdapters
  - NullColumn < ColumnActiveRecord::ConnectionAdapters
  - NullTransaction < ObjectActiveRecord::ConnectionAdapters
  - PostgreSQLActiveRecord::ConnectionAdapters
    - AlterTable < AlterTableActiveRecord::ConnectionAdapters::PostgreSQL
    - ColumnMethodsActiveRecord::ConnectionAdapters::PostgreSQL
    - DatabaseStatementsActiveRecord::ConnectionAdapters::PostgreSQL
    - ExplainPrettyPrinter < ObjectActiveRecord::ConnectionAdapters::PostgreSQL
    - Name < ObjectActiveRecord::ConnectionAdapters::PostgreSQL
    - OIDActiveRecord::ConnectionAdapters::PostgreSQL
      - Array < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
        Data < StructActiveRecord::ConnectionAdapters::PostgreSQL::OID::Array
      - Bit < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
        Data < ObjectActiveRecord::ConnectionAdapters::PostgreSQL::OID::Bit
      - BitVarying < BitActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Bytea < BinaryActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Cidr < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Date < DateActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - DateTime < DateTimeActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Decimal < DecimalActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Enum < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Hstore < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Inet < CidrActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Jsonb < JsonActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - LegacyPoint < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Money < DecimalActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Oid < IntegerActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Point < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Range < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - SpecializedString < StringActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - TypeMapInitializer < ObjectActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Uuid < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Vector < ValueActiveRecord::ConnectionAdapters::PostgreSQL::OID
      - Xml < StringActiveRecord::ConnectionAdapters::PostgreSQL::OID
        Data < ObjectActiveRecord::ConnectionAdapters::PostgreSQL::OID::Xml
    - QuotingActiveRecord::ConnectionAdapters::PostgreSQL
    - ReferentialIntegrityActiveRecord::ConnectionAdapters::PostgreSQL
    - SchemaCreation < SchemaCreationActiveRecord::ConnectionAdapters::PostgreSQL
    - SchemaDumper < SchemaDumperActiveRecord::ConnectionAdapters::PostgreSQL
    - SchemaStatementsActiveRecord::ConnectionAdapters::PostgreSQL
    - Table < TableActiveRecord::ConnectionAdapters::PostgreSQL
    - TableDefinition < TableDefinitionActiveRecord::ConnectionAdapters::PostgreSQL
    - UtilsActiveRecord::ConnectionAdapters::PostgreSQL
  - PostgreSQLAdapter < AbstractAdapterActiveRecord::ConnectionAdapters
    - StatementPool < StatementPoolActiveRecord::ConnectionAdapters::PostgreSQLAdapter
  - PostgreSQLColumn < ColumnActiveRecord::ConnectionAdapters
  - PostgreSQLTypeMetadata < SqlTypeMetadataActiveRecord::ConnectionAdapters
  - PrimaryKeyDefinition < StructActiveRecord::ConnectionAdapters
  - QueryCacheActiveRecord::ConnectionAdapters
    - ConnectionPoolConfigurationActiveRecord::ConnectionAdapters::QueryCache
  - QuotingActiveRecord::ConnectionAdapters
  - RealTransaction < TransactionActiveRecord::ConnectionAdapters
  - ReferenceDefinition < ObjectActiveRecord::ConnectionAdapters
  - SQLite3ActiveRecord::ConnectionAdapters
    - ExplainPrettyPrinter < ObjectActiveRecord::ConnectionAdapters::SQLite3
    - QuotingActiveRecord::ConnectionAdapters::SQLite3
    - SchemaCreation < SchemaCreationActiveRecord::ConnectionAdapters::SQLite3
    - SchemaDumper < SchemaDumperActiveRecord::ConnectionAdapters::SQLite3
    - SchemaStatementsActiveRecord::ConnectionAdapters::SQLite3
    - TableDefinition < TableDefinitionActiveRecord::ConnectionAdapters::SQLite3
  - SQLite3Adapter < AbstractAdapterActiveRecord::ConnectionAdapters
    - SQLite3Integer < IntegerActiveRecord::ConnectionAdapters::SQLite3Adapter
    - StatementPool < StatementPoolActiveRecord::ConnectionAdapters::SQLite3Adapter
  - SavepointTransaction < TransactionActiveRecord::ConnectionAdapters
  - SavepointsActiveRecord::ConnectionAdapters
  - SchemaCache < ObjectActiveRecord::ConnectionAdapters
  - SchemaDumper < SchemaDumperActiveRecord::ConnectionAdapters
  - SchemaStatementsActiveRecord::ConnectionAdapters
  - SqlTypeMetadata < ObjectActiveRecord::ConnectionAdapters
  - StatementPool < ObjectActiveRecord::ConnectionAdapters
  - Table < ObjectActiveRecord::ConnectionAdapters
  - TableDefinition < ObjectActiveRecord::ConnectionAdapters
  - Transaction < ObjectActiveRecord::ConnectionAdapters
  - TransactionManager < ObjectActiveRecord::ConnectionAdapters
  - TransactionState < ObjectActiveRecord::ConnectionAdapters
- ConnectionHandlingActiveRecord
  - MergeAndResolveDefaultUrlConfig < ObjectActiveRecord::ConnectionHandling
- ConnectionNotEstablished < ActiveRecordErrorActiveRecord
- ConnectionTimeoutError < ConnectionNotEstablishedActiveRecord
- CoreActiveRecord
  - ClassMethodsActiveRecord::Core
- CounterCacheActiveRecord
  - ClassMethodsActiveRecord::CounterCache
- DangerousAttributeError < ActiveRecordErrorActiveRecord
- Deadlocked < TransactionRollbackErrorActiveRecord
- DefineCallbacksActiveRecord
  - ClassMethodsActiveRecord::DefineCallbacks
- DelegationActiveRecord
  - ClassMethodsActiveRecord::Delegation
  - ClassSpecificRelationActiveRecord::Delegation
    - ClassMethodsActiveRecord::Delegation::ClassSpecificRelation
  - DelegateCacheActiveRecord::Delegation
- DeleteRestrictionError < ActiveRecordErrorActiveRecord
- DuplicateMigrationNameError < MigrationErrorActiveRecord
- DuplicateMigrationVersionError < MigrationErrorActiveRecord
- DynamicMatchersActiveRecord
  - FindBy < MethodActiveRecord::DynamicMatchers
  - FindByBang < MethodActiveRecord::DynamicMatchers
  - Method < ObjectActiveRecord::DynamicMatchers
- EagerLoadPolymorphicError < ActiveRecordErrorActiveRecord
- EnumActiveRecord
  - EnumType < ValueActiveRecord::Enum
- EnvironmentMismatchError < ActiveRecordErrorActiveRecord
- ExclusiveConnectionTimeoutError < ConnectionTimeoutErrorActiveRecord
- ExplainActiveRecord
- ExplainRegistry < ObjectActiveRecord
- ExplainSubscriber < ObjectActiveRecord
- FinderMethodsActiveRecord
- Fixture < ObjectActiveRecord
  - FixtureError < StandardErrorActiveRecord::Fixture
  - FormatError < FixtureErrorActiveRecord::Fixture
- FixtureClassNotFound < ActiveRecordErrorActiveRecord
- FixtureSet < ObjectActiveRecord
  - ClassCache < ObjectActiveRecord::FixtureSet
  - File < ObjectActiveRecord::FixtureSet
  - HasManyThroughProxy < ReflectionProxyActiveRecord::FixtureSet
  - ReflectionProxy < ObjectActiveRecord::FixtureSet
  - RenderContext < ObjectActiveRecord::FixtureSet
- GeneratorsActiveRecord
  - ApplicationRecordGenerator < BaseActiveRecord::Generators
  - Base < NamedBaseActiveRecord::Generators
  - MigrationActiveRecord::Generators
    - ClassMethodsActiveRecord::Generators::Migration
  - MigrationGenerator < BaseActiveRecord::Generators
  - ModelGenerator < BaseActiveRecord::Generators
- HasManyThroughAssociationNotFoundError < ActiveRecordErrorActiveRecord
- HasManyThroughAssociationPointlessSourceTypeError < ActiveRecordErrorActiveRecord
- HasManyThroughAssociationPolymorphicSourceError < ActiveRecordErrorActiveRecord
- HasManyThroughAssociationPolymorphicThroughError < ActiveRecordErrorActiveRecord
- HasManyThroughCantAssociateThroughHasOneOrManyReflection < ThroughCantAssociateThroughHasOneOrManyReflectionActiveRecord
- HasManyThroughNestedAssociationsAreReadonly < ThroughNestedAssociationsAreReadonlyActiveRecord
- HasManyThroughOrderError < ActiveRecordErrorActiveRecord
- HasManyThroughSourceAssociationNotFoundError < ActiveRecordErrorActiveRecord
- HasOneAssociationPolymorphicThroughError < ActiveRecordErrorActiveRecord
- HasOneThroughCantAssociateThroughCollection < ActiveRecordErrorActiveRecord
- HasOneThroughCantAssociateThroughHasOneOrManyReflection < ThroughCantAssociateThroughHasOneOrManyReflectionActiveRecord
- HasOneThroughNestedAssociationsAreReadonly < ThroughNestedAssociationsAreReadonlyActiveRecord
- IllegalMigrationNameError < MigrationErrorActiveRecord
- ImmutableRelation < ActiveRecordErrorActiveRecord
- InheritanceActiveRecord
  - ClassMethodsActiveRecord::Inheritance
- IntegrationActiveRecord
  - ClassMethodsActiveRecord::Integration
- InternalMetadata < BaseActiveRecord
- InvalidForeignKey < WrappedDatabaseExceptionActiveRecord
- InverseOfAssociationNotFoundError < ActiveRecordErrorActiveRecord
- IrreversibleMigration < MigrationErrorActiveRecord
- IrreversibleOrderError < ActiveRecordErrorActiveRecord
- LegacyYamlAdapterActiveRecord
  - Rails41ActiveRecord::LegacyYamlAdapter
  - Rails420ActiveRecord::LegacyYamlAdapter
- LockWaitTimeout < StatementInvalidActiveRecord
- LockingActiveRecord
  - LockingType < ValueActiveRecord::Locking
  - OptimisticActiveRecord::Locking
    - ClassMethodsActiveRecord::Locking::Optimistic
  - PessimisticActiveRecord::Locking
- LogSubscriber < LogSubscriberActiveRecord
- Migration < ObjectActiveRecord
  - CheckPending < ObjectActiveRecord::Migration
  - CommandRecorder < ObjectActiveRecord::Migration
    - StraightReversionsActiveRecord::Migration::CommandRecorder
  - CompatibilityActiveRecord::Migration
    - V4_2 < V5_0ActiveRecord::Migration::Compatibility
      - TableDefinitionActiveRecord::Migration::Compatibility::V4_2
    - V5_0 < V5_1ActiveRecord::Migration::Compatibility
      - TableDefinitionActiveRecord::Migration::Compatibility::V5_0
    - V5_1 < V5_2ActiveRecord::Migration::Compatibility
  - Current < MigrationActiveRecord::Migration
  - JoinTableActiveRecord::Migration
  - ReversibleBlockHelper < StructActiveRecord::Migration
- MigrationContext < ObjectActiveRecord
- MigrationError < ActiveRecordErrorActiveRecord
- MigrationProxy < StructActiveRecord
- Migrator < ObjectActiveRecord
- MismatchedForeignKey < StatementInvalidActiveRecord
- ModelSchemaActiveRecord
  - ClassMethodsActiveRecord::ModelSchema
- MultiparameterAssignmentErrors < ActiveRecordErrorActiveRecord
- NestedAttributesActiveRecord
  - ClassMethodsActiveRecord::NestedAttributes
  - TooManyRecords < ActiveRecordErrorActiveRecord::NestedAttributes
- NoDatabaseError < StatementInvalidActiveRecord
- NoEnvironmentInSchemaError < MigrationErrorActiveRecord
- NoTouchingActiveRecord
  - ClassMethodsActiveRecord::NoTouching
- NotNullViolation < StatementInvalidActiveRecord
- NullMigration < MigrationProxyActiveRecord
- NullRelationActiveRecord
- PendingMigrationError < MigrationErrorActiveRecord
- PersistenceActiveRecord
  - ClassMethodsActiveRecord::Persistence
- Point < StructActiveRecord
- PredicateBuilder < ObjectActiveRecord
  - ArrayHandler < ObjectActiveRecord::PredicateBuilder
    - NullPredicateActiveRecord::PredicateBuilder::ArrayHandler
  - AssociationQueryValue < ObjectActiveRecord::PredicateBuilder
  - BaseHandler < ObjectActiveRecord::PredicateBuilder
  - BasicObjectHandler < ObjectActiveRecord::PredicateBuilder
  - PolymorphicArrayValue < ObjectActiveRecord::PredicateBuilder
  - RangeHandler < ObjectActiveRecord::PredicateBuilder
    - RangeWithBinds < StructActiveRecord::PredicateBuilder::RangeHandler
  - RelationHandler < ObjectActiveRecord::PredicateBuilder
- PreparedStatementCacheExpired < StatementInvalidActiveRecord
- PreparedStatementInvalid < ActiveRecordErrorActiveRecord
- ProtectedEnvironmentError < ActiveRecordErrorActiveRecord
- QueryCache < ObjectActiveRecord
  - ClassMethodsActiveRecord::QueryCache
- QueryCanceled < StatementInvalidActiveRecord
- QueryMethodsActiveRecord
  - WhereChain < ObjectActiveRecord::QueryMethods
- QueryingActiveRecord
- Railtie < RailtieActiveRecord
- RailtiesActiveRecord
  - ControllerRuntimeActiveRecord::Railties
    - ClassMethodsActiveRecord::Railties::ControllerRuntime
- RangeError < StatementInvalidActiveRecord
- ReadOnlyRecord < ActiveRecordErrorActiveRecord
- ReadonlyAttributesActiveRecord
  - ClassMethodsActiveRecord::ReadonlyAttributes
- RecordInvalid < ActiveRecordErrorActiveRecord
- RecordNotDestroyed < ActiveRecordErrorActiveRecord
- RecordNotFound < ActiveRecordErrorActiveRecord
- RecordNotSaved < ActiveRecordErrorActiveRecord
- RecordNotUnique < WrappedDatabaseExceptionActiveRecord
- ReflectionActiveRecord
  - AbstractReflection < ObjectActiveRecord::Reflection
    - JoinKeys < StructActiveRecord::Reflection::AbstractReflection
  - AggregateReflection < MacroReflectionActiveRecord::Reflection
  - AssociationReflection < MacroReflectionActiveRecord::Reflection
  - BelongsToReflection < AssociationReflectionActiveRecord::Reflection
  - ClassMethodsActiveRecord::Reflection
  - HasAndBelongsToManyReflection < AssociationReflectionActiveRecord::Reflection
  - HasManyReflection < AssociationReflectionActiveRecord::Reflection
  - HasOneReflection < AssociationReflectionActiveRecord::Reflection
  - MacroReflection < AbstractReflectionActiveRecord::Reflection
  - PolymorphicReflection < AbstractReflectionActiveRecord::Reflection
  - RuntimeReflection < AbstractReflectionActiveRecord::Reflection
  - ThroughReflection < AbstractReflectionActiveRecord::Reflection
- Relation < ObjectActiveRecord
  - FromClause < ObjectActiveRecord::Relation
  - HashMerger < ObjectActiveRecord::Relation
  - Merger < ObjectActiveRecord::Relation
  - QueryAttribute < AttributeActiveRecord::Relation
  - RecordFetchWarningActiveRecord::Relation
    - QueryRegistry < ObjectActiveRecord::Relation::RecordFetchWarning
  - WhereClause < ObjectActiveRecord::Relation
  - WhereClauseFactory < ObjectActiveRecord::Relation
- Result < ObjectActiveRecord
- Rollback < ActiveRecordErrorActiveRecord
- RuntimeRegistry < ObjectActiveRecord
- SanitizationActiveRecord
  - ClassMethodsActiveRecord::Sanitization
- Schema < CurrentActiveRecord
- SchemaDumper < ObjectActiveRecord
- SchemaMigration < BaseActiveRecord
- ScopingActiveRecord
  - ClassMethodsActiveRecord::Scoping
  - DefaultActiveRecord::Scoping
    - ClassMethodsActiveRecord::Scoping::Default
  - NamedActiveRecord::Scoping
    - ClassMethodsActiveRecord::Scoping::Named
  - ScopeRegistry < ObjectActiveRecord::Scoping
- SecureTokenActiveRecord
  - ClassMethodsActiveRecord::SecureToken
- SerializationActiveRecord
- SerializationFailure < TransactionRollbackErrorActiveRecord
- SerializationTypeMismatch < ActiveRecordErrorActiveRecord
- SpawnMethodsActiveRecord
- StaleObjectError < ActiveRecordErrorActiveRecord
- StatementCache < ObjectActiveRecord
  - BindMap < ObjectActiveRecord::StatementCache
  - Params < ObjectActiveRecord::StatementCache
  - PartialQuery < QueryActiveRecord::StatementCache
  - Query < ObjectActiveRecord::StatementCache
  - Substitute < ObjectActiveRecord::StatementCache
- StatementInvalid < ActiveRecordErrorActiveRecord
- StatementTimeout < StatementInvalidActiveRecord
- StoreActiveRecord
  - ClassMethodsActiveRecord::Store
  - HashAccessor < ObjectActiveRecord::Store
  - IndifferentCoder < ObjectActiveRecord::Store
  - IndifferentHashAccessor < HashAccessorActiveRecord::Store
  - StringKeyedHashAccessor < HashAccessorActiveRecord::Store
- SubclassNotFound < ActiveRecordErrorActiveRecord
- SuppressorActiveRecord
  - ClassMethodsActiveRecord::Suppressor
- SuppressorRegistry < ObjectActiveRecord
- TableMetadata < ObjectActiveRecord
- TasksActiveRecord
  - DatabaseAlreadyExists < StandardErrorActiveRecord::Tasks
  - DatabaseNotSupported < StandardErrorActiveRecord::Tasks
  - DatabaseTasksActiveRecord::Tasks
  - MySQLDatabaseTasks < ObjectActiveRecord::Tasks
  - PostgreSQLDatabaseTasks < ObjectActiveRecord::Tasks
  - SQLiteDatabaseTasks < ObjectActiveRecord::Tasks
- TestFixturesActiveRecord
  - ClassMethodsActiveRecord::TestFixtures
- ThroughCantAssociateThroughHasOneOrManyReflection < ActiveRecordErrorActiveRecord
- ThroughNestedAssociationsAreReadonly < ActiveRecordErrorActiveRecord
- TimestampActiveRecord
  - ClassMethodsActiveRecord::Timestamp
- TouchLaterActiveRecord
- TransactionIsolationError < ActiveRecordErrorActiveRecord
- TransactionRollbackError < StatementInvalidActiveRecord
- TransactionsActiveRecord
  - ClassMethodsActiveRecord::Transactions
- TranslationActiveRecord
- TypeActiveRecord
  - AdapterSpecificRegistry < RegistryActiveRecord::Type
  - Date < DateActiveRecord::Type
  - DateTime < DateTimeActiveRecord::Type
  - DecimalWithoutScale < BigIntegerActiveRecord::Type
  - DecorationRegistration < RegistrationActiveRecord::Type
  - HashLookupTypeMap < TypeMapActiveRecord::Type
  - InternalActiveRecord::Type
    - TimezoneActiveRecord::Type::Internal
  - Json < ValueActiveRecord::Type
  - Registration < ObjectActiveRecord::Type
  - Serialized < ValueActiveRecord::Type
  - Text < StringActiveRecord::Type
  - Time < TimeActiveRecord::Type
    - Value < TimeActiveRecord::Type::Time
  - TypeMap < ObjectActiveRecord::Type
  - UnsignedInteger < IntegerActiveRecord::Type
- TypeCasterActiveRecord
  - Connection < ObjectActiveRecord::TypeCaster
  - Map < ObjectActiveRecord::TypeCaster
- TypeConflictError < StandardErrorActiveRecord
- UnknownAttributeReference < ActiveRecordErrorActiveRecord
- UnknownMigrationVersionError < MigrationErrorActiveRecord
- UnknownPrimaryKey < ActiveRecordErrorActiveRecord
- VERSIONActiveRecord
- ValidationsActiveRecord
  - AbsenceValidator < AbsenceValidatorActiveRecord::Validations
  - AssociatedValidator < EachValidatorActiveRecord::Validations
  - ClassMethodsActiveRecord::Validations
  - LengthValidator < LengthValidatorActiveRecord::Validations
  - PresenceValidator < PresenceValidatorActiveRecord::Validations
  - UniquenessValidator < EachValidatorActiveRecord::Validations
- ValueTooLong < StatementInvalidActiveRecord
- WrappedDatabaseException < StatementInvalidActiveRecord
PG::Connection < ObjectPG