https://docs.djangoproject.com/en/2.0/topics/db/models/#module-django.db.models

Contents

• Models
  • Quick example
  • Using models
  • Fields
    • Field types
    • Field options
    • Automatic primary key fields
    • Verbose field names
    • Relationships
      • Many-to-one relationships
      • Many-to-many relationships
      • Extra fields on many-to-many relationships
      • One-to-one relationships
    • Models across files
    • Field name restrictions
    • Custom field types
  • Meta options
  • Model attributes
  • Model methods
    • Overriding predefined model methods
    • Executing custom SQL
  • Model inheritance
    • Abstract base classes
      • Meta inheritance
      • Be careful with related_name and related_query_name
    • Multi-table inheritance
      • Meta and multi-table inheritance
      • Inheritance and reverse relations
      • Specifying the parent link field
    • Proxy models
      • QuerySets still return the model that was requested
      • Base class restrictions
      • Proxy model managers
      • Differences between proxy inheritance and unmanaged models
    • Multiple inheritance
    • Field name “hiding” is not permitted
  • Organizing models in a package