MODEL

RELATIONSHIP

E-COMMERCE

ORGANIZE

ON_DELETE

Types

ForeignKey

ManyToMany

Multiple

Second

Featured

Product

Collection

Cart

Customer

Order

Association

Class

Coupling

Min

Cohesion

High

Avoid

Monolith

Coupling

High

Conditions

Parent

Exist

Specify

Child

Reverse

Auto

OneToOne

Product

Circular

Generic

on_delete

SET_NULL

Nullable

RelatedName

+

Between

Apps

Identify

Get

Type

Id

ContentType

PositiveIntegerField

GenericForeignKey()

content_object

content_type

object_id

CASCADE

PROTECT

RESTRICT

SET_NULL

SET()

DO_NOTHING

CHOICES

Enum

Field

All

Pass

Tuple

List

Default

FIELDS

Char

Decimal

Integer

Positive

Text

Date

DateTime

Email