Release: 1.4.50 | Release Date: October 29, 2023

SQLAlchemy 1.4 Documentation

SQLAlchemy 1.4 Documentation

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SQLAlchemy ORM

  • ORM Quick Start
  • Object Relational Tutorial (1.x API)
  • ORM Mapped Class Configuration
  • Relationship Configuration
  • Querying Data, Loading Objects
  • Using the Session
  • Events and Internals¶
    • ORM Events
    • ORM Internals
    • ORM Exceptions
  • ORM Extensions
  • ORM Examples

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    • Events and Internals

Events and Internals¶

The SQLAlchemy ORM as well as Core are extended generally through the use of event hooks. Be sure to review the use of the event system in general at Events.

  • ORM Events
    • Session Events
    • Mapper Events
    • Instance Events
    • Attribute Events
    • Query Events
    • Instrumentation Events
  • ORM Internals
    • AttributeState
    • CascadeOptions
    • ClassManager
    • ColumnProperty
    • ColumnProperty.Comparator.expressions
    • CompositeProperty
    • AttributeEvent
    • IdentityMap
    • InspectionAttr
    • InspectionAttrInfo
    • InstanceState
    • InstrumentedAttribute
    • MANYTOONE
    • MANYTOMANY
    • Mapped
    • MapperProperty
    • NOT_EXTENSION
    • merge_result()
    • merge_frozen_result()
    • ONETOMANY
    • PropComparator
    • RelationshipProperty
    • SynonymProperty
    • QueryContext
    • QueryableAttribute
    • UOWTransaction
  • ORM Exceptions
    • ConcurrentModificationError
    • DetachedInstanceError
    • FlushError
    • LoaderStrategyException
    • NO_STATE
    • ObjectDeletedError
    • ObjectDereferencedError
    • StaleDataError
    • UnmappedClassError
    • UnmappedColumnError
    • UnmappedError
    • UnmappedInstanceError
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