def setUp(self):
for table in self.tables:
table.create_table().run_sync()
manager_1 = Manager(name="Guido")
manager_1.save().run_sync()
band_1 = Band(
name="Pythonistas", manager=manager_1.id, popularity=1000
)
band_1.save().run_sync()
manager_2 = Manager(name="Graydon")
manager_2.save().run_sync()
band_2 = Band(name="Rustaceans", manager=manager_2.id)
band_2.save().run_sync()
venue = Venue(name="Grand Central", capacity=1000)
venue.save().run_sync()
concert = Concert(band_1=band_1.id, band_2=band_2.id, venue=venue.id)
concert.save().run_sync()
ticket = Ticket(concert=concert, price=decimal.Decimal(50.0))
ticket.save().run_sync()
def test_get_related(self):
"""
Make sure you can get a related object from another object instance.
"""
manager = Manager(name="Guido")
manager.save().run_sync()
band = Band(name="Pythonistas", manager=manager.id, popularity=100)
band.save().run_sync()
_manager = band.get_related(Band.manager).run_sync()
self.assertTrue(_manager.name == "Guido")
# Test non-ForeignKey
with self.assertRaises(ValueError):
band.get_related(Band.name)
# Make sure it also works using a string
_manager = band.get_related("manager").run_sync()
self.assertTrue(_manager.name == "Guido")
# Test an invalid string
with self.assertRaises(ValueError):
band.get_related("abc123")
def test_save_specific_columns(self):
"""
Make sure that we can save a subset of columns.
"""
manager = Manager(name="Guido")
manager.save().run_sync()
band = Band(name="Pythonistas", popularity=1000, manager=manager)
band.save().run_sync()
self.assertEqual(
Band.select().run_sync(),
[{
"id": 1,
"name": "Pythonistas",
"manager": 1,
"popularity": 1000,
}],
)
band.name = "Pythonistas 2"
band.popularity = 2000
band.save(columns=[Band.name]).run_sync()
# Only the name should update, and not the popularity:
self.assertEqual(
Band.select().run_sync(),
[{
"id": 1,
"name": "Pythonistas 2",
"manager": 1,
"popularity": 1000,
}],
)
#######################################################################
# Also test it using strings to identify columns
band.name = "Pythonistas 3"
band.popularity = 3000
band.save(columns=["popularity"]).run_sync()
# Only the popularity should update, and not the name:
self.assertEqual(
Band.select().run_sync(),
[{
"id": 1,
"name": "Pythonistas 2",
"manager": 1,
"popularity": 3000,
}],
)