dfee / factoryboy_oto_demo Goto Github PK

I've played around with how to to one-to-one Factory creation with FactoryBoy a number of times. With the latest version of FactoryBoy (2.9.2), I got tired of chasing down "how I did it in the past", and decided to build a demo repo.

Note, this demo is current for factory-boy==v2.9.2. It should work for every 2.9.x release, but may need to be modified for future releases.

There are two types of one-to-one mappings exposed in this demo. I'll call the first version Simple One-to-One. This is where a ModelA has a PK that points at ModelB, and vice-versa.

The second version (does it have a name?, we'll call it Complex One-to-One) is a joint form of One-to-One mapping and One-to-Many mapping. I.e. ModelA has a PK to ModelB, while ModelB is mapped to a particular ModelA.

In this repository, I've got a Musician with a Profile. They point at each other. That's it. In the SQL world, sometimes it's handy to point backwards. That's all.

In this repository, I've got a Musician who has composed Songs. On its face this is a One-to-Many mapping. However, in this example, a musician also has a best_song and a worst_song. Suddenly there are two One-to-One mappings.

Download this repository, create a virtualenv, install the package, and run pytest.

git clone https://github.com/dfee/factoryboy_oto_demo
cd factoryboy_oto_demo
python -m venv env
source env/bin/activate
pip install -e .
pytest