ORM Mapped Class Configuration

• ORM Mapped Class Overview
  • • Declarative Mapping
  • Mapped Class Essential Components
    • The table, or other from clause object
    • Other mapper configuration parameters
  • • Default Constructor
    • • Inspection of Mapper objects
• Mapping Classes with Declarative
  • • Using a Declarative Base Class
  • Table Configuration with Declarative
    • • Using Annotated Declarative Table (Type Annotated Forms for mapped_column())
      • Declarative Table Configuration
      • Setting Load and Persistence Options for Declarative Mapped Columns
      • Appending additional columns to an existing Declarative mapped class
    • • Alternate Attribute Names for Mapping Table Columns
    • Mapping Declaratively with Reflected Tables
      • Using Automap
      • Mapping to an Explicit Set of Primary Key Columns
  • Mapper Configuration with Declarative
    • Mapper Configuration Options with Declarative
    • Other Declarative Mapping Directives
      • __declare_first__()
      • __abstract__
  • Composing Mapped Hierarchies with Mixins
    • Mixing in Columns
    • Mixing in _orm.column_property() and other _orm.MapperProperty classes
    • • Using _orm.declared_attr() with inheriting Table and Mapper arguments
    • Combining Table/Mapper Arguments from Multiple Mixins
• Integration with dataclasses and attrs
  • • Class level feature configuration
    • • Column Defaults
    • Relationship Configuration
  • Applying ORM Mappings to an existing dataclass
    • Mapping dataclasses using Declarative Mapping
    • Mapping dataclasses using Imperative Mapping
  • • Mapping attrs with Declarative “Imperative Table”
• Changing Attribute Behavior
  • • validates()
  • Using Descriptors and Hybrids
  • • synonym()
• Composite Column Types
  • Other mapping forms for composites
  • Tracking In-Place Mutations on Composites
  • Nesting Composites
  • • composite()
• • Joined Table Inheritance
    • Loading Joined Inheritance Mappings
  • • Resolving Column Conflicts with use_existing_column
    • Building Deeper Hierarchies with polymorphic_abstract
  • Concrete Table Inheritance
    • Abstract Concrete Classes
    • Relationships with Concrete Inheritance
• Non-Traditional Mappings
  • Mapping a Class against Arbitrary Subqueries
• Configuring a Version Counter
  • Custom Version Counters / Types
  • Programmatic or Conditional Version Counters
• • registry
    • registry.as_declarative_base()
    • registry.dispose()
    • registry.map_declaratively()
    • registry.mapped()
    • registry.mappers
  • add_mapped_attribute()
  • declarative_base()
  • as_declarative()
  • declared_attr
    • declared_attr.directive
  • • DeclarativeBase.__mapper__
    • DeclarativeBase.__table_args__
    • DeclarativeBase.metadata
  • DeclarativeBaseNoMeta
    • DeclarativeBaseNoMeta.__mapper_args__
    • DeclarativeBaseNoMeta.__table_args__
    • DeclarativeBaseNoMeta.metadata
  • has_inherited_table()
  • object_mapper()
  • configure_mappers()
  • identity_key()
  • reconstructor()
  • • Mapper.__init__()
    • Mapper.add_property()
    • Mapper.attrs
    • Mapper.c
    • Mapper.class_
    • Mapper.column_attrs
    • Mapper.common_parent()
    • Mapper.concrete
    • Mapper.entity
    • Mapper.get_property_by_column()
    • Mapper.identity_key_from_primary_key()
    • Mapper.inherits
    • Mapper.is_sibling()
    • Mapper.iterate_properties
    • Mapper.mapped_table
    • Mapper.non_primary
    • Mapper.polymorphic_identity
    • Mapper.polymorphic_map
    • Mapper.primary_key
    • Mapper.primary_mapper()
    • Mapper.selectable
    • Mapper.single
    • Mapper.tables
    • Mapper.with_polymorphic_mappers
  • MappedClassProtocol