Django documentation contents Getting started Django at a glance Design your model Install it Enjoy the free API A dynamic admin interface: it’s not just scaffolding – it’s the whole house Design your queries Database transactions Multiple databases Tablespaces Database access optimization Examples of model relationship API usage Handling HTTP requests URL dispatcher Writing views View decorators File Dependencies Migration files Adding migrations to apps Historical models Considerations when removing model fields Data Migrations Squashing migrations Serializing values Supporting Python 2 and 3 Supporting

. . . . . . . . . . . . . 1 1.3 The model layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.4 The view layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 The template layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 Forms . . . . . . . . . . commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512 4.3 Writing custom model fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 519 4.4 Custom

Django documentation contents Getting started Django at a glance Design your model Install it Enjoy the free API A dynamic admin interface: it’s not just scaffolding – it’s the whole house Design your queries Database transactions Multiple databases Tablespaces Database access optimization Examples of model relationship API usage Handling HTTP requests URL dispatcher Writing views View decorators File Dependencies Migration files Adding migrations to apps Historical models Considerations when removing model fields Data Migrations Squashing migrations Serializing values Supporting Python 2 and 3 Supporting

. . . . . . . . . . . . . 2 1.4 The model layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 The view layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 The template layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.7 Forms . . . . . . . . . . django-admin commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539 4.3 Writing custom model fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544 4.4 Custom

Django documentation contents Getting started Django at a glance Design your model Install it Enjoy the free API A dynamic admin interface: it’s not just scaffolding – it’s the whole house Design your Multiple databases Tablespaces Database access optimization Database instrumentation Examples of model relationship API usage Handling HTTP requests URL dispatcher Writing views View decorators File Dependencies Migration files Adding migrations to apps Historical models Considerations when removing model fields Data Migrations Squashing migrations Serializing values Supporting multiple Django versions

. . . . . . . . . . . . . 2 1.4 The model layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 The view layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 The template layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.7 Forms . . . . . . . . . . django-admin commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541 4.3 Writing custom model fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546 4.4 Custom

Django documentation contents Getting started Django at a glance Design your model Install it Enjoy the free API A dynamic admin interface: it’s not just scaffolding – it’s the whole house Design your Multiple databases Tablespaces Database access optimization Database instrumentation Examples of model relationship API usage Handling HTTP requests URL dispatcher Writing views View decorators File Dependencies Migration files Adding migrations to apps Historical models Considerations when removing model fields Data Migrations Squashing migrations Serializing values Supporting multiple Django versions

Django documentation contents Getting started Django at a glance Design your model Install it Enjoy the free API A dynamic admin interface: it’s not just scaffolding – it’s the whole house Design your queries Database transactions Multiple databases Tablespaces Database access optimization Examples of model relationship API usage Handling HTTP requests URL dispatcher Writing views View decorators File Dependencies Migration files Adding migrations to apps Historical models Considerations when removing model fields Data Migrations Squashing migrations Serializing values Supporting Python 2 and 3 Supporting

. . . . . . . . . . . . . 2 1.4 The model layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 The view layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 The template layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.7 Forms . . . . . . . . . . django-admin commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541 4.3 Writing custom model fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546 4.4 Custom

. . . . . . . . . . . . . 2 1.4 The model layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 The view layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 The template layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.7 Forms . . . . . . . . . . django-admin commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545 4.3 Writing custom model fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550 4.4 Custom