Provides a base model with rudimentary composite PK abilities.
A Django application that provides a CompositePKModel, allowing for basic retrieval and saving of models with composite keys.
It is limited to the above tasks, and any use of the model past this is not guaranteed to work.
A model with composite PK should look something like this:
from composite_pk import composite class Lot(composite.CompositePKModel): auction = models.ForeignKey(Auction, primary_key=True) lot_number = models.IntegerField(primary_key=True) objects = composite.CompositePKManager()
So it must:
- subclass the CompositePKModel,
- have two or more fields which set the primary_key attribute to True, and
- use the CompositePKManager as the initial manager.
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