Understanding Django Models: Structure and Relationships
Models | Django documentation ๐
Models in Django serve as the primary structure for organizing and managing data in applications. Each model corresponds to a single database table and is defined as a Python class that inherits from django.db.models.Model
. Attributes within the model class define the fields of the database table. Django provides a range of built-in field types and allows for the creation of custom fields. Furthermore, relationships between models can be established using foreign keys, many-to-many fields, and one-to-one fields. Django models support various inheritance styles, including abstract base classes, multi-table inheritance, and proxy models. This flexibility helps in structuring data efficiently while maintaining clear relationships and behaviors.
- Each model is a class that defines a database table.
- Models use attributes for fields, which map to database columns.
- Relationships can be established through ForeignKey, ManyToManyField, and OneToOneField.
- Django supports multiple inheritance styles for models.
- Custom field types can be created as needed.
What is a model in Django?
A model in Django is a Python class that defines the structure of a database table, including the fields and behaviors associated with the data.
How do you establish relationships between models in Django?
Relationships are established using fields like ForeignKey for many-to-one relationships, ManyToManyField for many-to-many relationships, and OneToOneField for one-to-one relationships.
Can you create custom fields in Django models?
Yes, Django allows you to create custom model fields if the built-in field types do not meet your needs.