Relationships between models
Looking again at our module design, we have these relationships:
- Each Task has a Stage. That's a many-to-one relationship, also known as a foreign key. The inverse is a one-to-many relationship, meaning that each Stage can have many Tasks.
- Each Task can have many Tags. That's a many-to-many relationship. The inverse relationship, of course, is also a many-to-many, since each Tag can be in many Tasks.
The following Entity Relationship Diagram can help visualizing the relationships we are about to create on the model. The lines ending with a triangle represent a many sides of the relationships:
Let's add the corresponding ...
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