命名空間
- 模組 ActiveRecord
- 模組 ActiveRecord::Tasks
- 類別 ActiveRecord::ActiveRecordError
- 類別 ActiveRecord::AdapterError
- 類別 ActiveRecord::AdapterNotFound
- 類別 ActiveRecord::AdapterNotSpecified
- 類別 ActiveRecord::AdapterTimeout
- 類別 ActiveRecord::AssociationTypeMismatch
- 類別 ActiveRecord::AsynchronousQueryInsideTransactionError
- 類別 ActiveRecord::AttributeAssignmentError
- 類別 ActiveRecord::ConfigurationError
- 類別 ActiveRecord::ConnectionFailed
- 類別 ActiveRecord::ConnectionNotEstablished
- 類別 ActiveRecord::ConnectionTimeoutError
- 類別 ActiveRecord::DangerousAttributeError
- 類別 ActiveRecord::DatabaseAlreadyExists
- 類別 ActiveRecord::DatabaseConnectionError
- 類別 ActiveRecord::Deadlocked
- 類別 ActiveRecord::ExclusiveConnectionTimeoutError
- 類別 ActiveRecord::ImmutableRelation
- 類別 ActiveRecord::InvalidForeignKey
- 類別 ActiveRecord::IrreversibleOrderError
- 類別 ActiveRecord::LockWaitTimeout
- 類別 ActiveRecord::MismatchedForeignKey
- 類別 ActiveRecord::MultiparameterAssignmentErrors
- 類別 ActiveRecord::NoDatabaseError
- 類別 ActiveRecord::NotNullViolation
- 類別 ActiveRecord::PreparedStatementCacheExpired
- 類別 ActiveRecord::PreparedStatementInvalid
- 類別 ActiveRecord::QueryAborted
- 類別 ActiveRecord::QueryCanceled
- 類別 ActiveRecord::RangeError
- 類別 ActiveRecord::ReadOnlyError
- 類別 ActiveRecord::ReadOnlyRecord
- 類別 ActiveRecord::RecordNotDestroyed
- 類別 ActiveRecord::RecordNotFound
- 類別 ActiveRecord::RecordNotSaved
- 類別 ActiveRecord::RecordNotUnique
- 類別 ActiveRecord::Rollback
- 類別 ActiveRecord::SQLWarning
- 類別 ActiveRecord::SerializationFailure
- 類別 ActiveRecord::SerializationTypeMismatch
- 類別 ActiveRecord::SoleRecordExceeded
- 類別 ActiveRecord::StaleObjectError
- 類別 ActiveRecord::StatementInvalid
- CLASS ActiveRecord::StatementTimeout
- CLASS ActiveRecord::StrictLoadingViolationError
- CLASS ActiveRecord::SubclassNotFound
- CLASS ActiveRecord::TableNotSpecified
- CLASS ActiveRecord::TransactionIsolationError
- CLASS ActiveRecord::TransactionRollbackError
- CLASS ActiveRecord::UnknownAttributeReference
- CLASS ActiveRecord::UnknownPrimaryKey
- CLASS ActiveRecord::ValueTooLong
- CLASS ActiveRecord::WrappedDatabaseException