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Make Grid.gridify() use only pickup addresses

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- ensure a `Restaurant` only has one unique `Order.pickup_address`
- rework `Grid.gridify()` so that only pickup addresses are assigned
  into `Pixel`s
- include database migrations to ensure the data adhere to these
  tighter constraints
This commit is contained in:
Alexander Hess 2021-01-24 18:57:44 +01:00
commit 1bfc7db916
Signed by: alexander
GPG key ID: 344EA5AB10D868E0
11 changed files with 519 additions and 61 deletions
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4
src/urban_meal_delivery/db/restaurants.py
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@ -34,10 +34,12 @@ class Restaurant(meta.Base):
'0 <= estimated_prep_duration AND estimated_prep_duration <= 2400',
name='realistic_estimated_prep_duration',
),
# Needed by a `ForeignKeyConstraint` in `Order`.
sa.UniqueConstraint('id', 'address_id'),
)
# Relationships
address = orm.relationship('Address', back_populates='restaurant')
address = orm.relationship('Address', back_populates='restaurants')
orders = orm.relationship('Order', back_populates='restaurant')
def __repr__(self) -> str: