activerecord/lib/active_record/errors.rb   
          
        Required Files
active_record/associations/ errors 
Namespace
ActiveRecordActiveRecord::ActiveRecordError ActiveRecord::AdapterError ActiveRecord::AdapterNotFound ActiveRecord::AdapterNotSpecified ActiveRecord::AdapterTimeout ActiveRecord::AssociationTypeMismatch ActiveRecord::AsynchronousQueryInsideTransactionError ActiveRecord::AttributeAssignmentError ActiveRecord::ConfigurationError ActiveRecord::ConnectionFailed ActiveRecord::ConnectionNotDefined ActiveRecord::ConnectionNotEstablished ActiveRecord::ConnectionTimeoutError ActiveRecord::DangerousAttributeError ActiveRecord::DatabaseAlreadyExists ActiveRecord::DatabaseConnectionError ActiveRecord::DatabaseVersionError ActiveRecord::Deadlocked ActiveRecord::ExclusiveConnectionTimeoutError ActiveRecord::InvalidForeignKey ActiveRecord::IrreversibleOrderError ActiveRecord::LockWaitTimeout ActiveRecord::MismatchedForeignKey ActiveRecord::MultiparameterAssignmentErrors ActiveRecord::NoDatabaseError ActiveRecord::NotNullViolation ActiveRecord::PreparedStatementCacheExpired ActiveRecord::PreparedStatementInvalid ActiveRecord::QueryAborted ActiveRecord::QueryCanceled ActiveRecord::RangeError ActiveRecord::ReadOnlyError ActiveRecord::ReadOnlyRecord ActiveRecord::RecordNotDestroyed ActiveRecord::RecordNotFound ActiveRecord::RecordNotSaved ActiveRecord::RecordNotUnique ActiveRecord::Rollback ActiveRecord::SQLWarning ActiveRecord::SerializationFailure ActiveRecord::SerializationTypeMismatch ActiveRecord::SoleRecordExceeded ActiveRecord::StaleObjectError ActiveRecord::StatementInvalid ActiveRecord::StatementTimeout ActiveRecord::StrictLoadingViolationError ActiveRecord::SubclassNotFound ActiveRecord::TableNotSpecified ActiveRecord::TransactionIsolationError ActiveRecord::TransactionRollbackError ActiveRecord::UnknownAttributeReference ActiveRecord::UnknownPrimaryKey ActiveRecord::UnmodifiableRelation ActiveRecord::ValueTooLong ActiveRecord::WrappedDatabaseException