Models and Database Structure

In this chapter, we will cover the following topics:

• Using model mixins
• Creating a model mixin with URL-related methods
• Creating a model mixin to handle creation and modification dates
• Creating a model mixin to take care of meta tags
• Creating a model mixin to handle generic relations
• Handling multilingual fields
• Working with model translation tables
• Avoiding circular dependencies
• Adding database constraints
• Using migrations
• Changing a foreign key to the many-to-many field