def test_delete(self):
example_data.load()
# delete object updates indexes
fighter_writer = ModelWriter(Fighter)
self.assertEqual(ds.hgetall('u:Fighter:name'), {'Alice': '1', 'Bob': '2'})
self.assertEqual(ds.smembers('i:Fighter:city:1'), set(['1', '2']))
self.assertEqual(ds.zrange('z:Fighter:weight', 0, -1), ['2', '1'])
fighter1 = Fighter(Fighter.by_id(1))
fighter_writer.delete(fighter1)
self.assertRaises(NotFoundError, Fighter, Fighter.by_id(1))
self.assertTrue(fighter1.oid is None)
self.assertEqual(ds.hgetall('u:Fighter:name'), {'Bob': '2'})
self.assertEqual(ds.smembers('i:Fighter:city:1'), set(['2']))
self.assertEqual(ds.zrange('z:Fighter:weight', 0, -1), ['2'])
# delete container item updates indexes
gang_members_writer = SetFieldWriter(Gang.members)
self.assertEqual(ds.smembers('Gang:1:members'), set(['1', '2']))
self.assertEqual(ds.hgetall('u:Gang:members'), {'1': '1', '2': '1'})
gang1 = Gang(Gang.by_id(1))
gang_members_writer.remove(gang1.members, Fighter.by_id(1))
self.assertEqual(ds.smembers('Gang:1:members'), set(['2']))
self.assertEqual(ds.hgetall('u:Gang:members'), {'2': '1'})
gang_cities_writer = SetFieldWriter(Gang.cities)
self.assertEqual(ds.smembers('Gang:1:cities'), set(['1', '3']))
self.assertEqual(ds.smembers('i:Gang:cities:1'), set(['1']))
self.assertEqual(ds.smembers('i:Gang:cities:3'), set(['1']))
gang1 = Gang(Gang.by_id(1))
gang_cities_writer.remove(gang1.cities, City.by_id(1))
self.assertEqual(ds.smembers('Gang:1:cities'), set(['3']))
self.assertFalse(ds.exists('i:Gang:cities:1'))
self.assertEqual(ds.smembers('i:Gang:cities:3'), set(['1']))
# delete object updates lists of listed attributes
self.assertEqual(ds.lrange('l:Gang:hqcity:3', 0, -1), ['1', '2'])
gang_writer = ModelWriter(Gang)
gang_writer.delete(gang1)
self.assertEqual(ds.lrange('l:Gang:hqcity:3', 0, -1), ['2'])
# autodelete owned item
fighter_skill_list_writer = ModelWriter(FighterSkillList)
skill_instance_writer = ModelWriter(SkillInstance)
fighter_skills_writer = ListFieldWriter(FighterSkillList.skills, element_writer = skill_instance_writer)
self.assertEqual(ds.lrange('FighterSkillList:1:skills', 0, -1), ['1', '2'])
self.assertEqual(ds.lrange('FighterSkillList:2:skills', 0, -1), ['3', '4'])
for i in range(1, 5):
self.assertTrue(ds.exists('SkillInstance:{0}'.format(i)))
handle = FighterSkillList.by_owner(Fighter.by_id(2))
fsl = FighterSkillList(handle)
ski = SkillInstance(SkillInstance.by_id(3))
fighter_skills_writer.remove(fsl.skills, ski)
self.assertTrue(ski.oid is None)
self.assertEqual(ds.lrange('FighterSkillList:2:skills', 0, -1), ['4'])
self.assertFalse(ds.exists('SkillInstance:3'))
self.assertTrue(ds.exists('SkillInstance:4'))
# don't allow removing not owned object
ski = SkillInstance(SkillInstance.by_id(1))
self.assertRaises(NotFoundError, fighter_skills_writer.remove, fsl.skills, ski)
self.assertTrue(ds.exists('SkillInstance:1'))
