Python django.db.models.Manager() Examples
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code examples of django.db.models.Manager().
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Example #1
Source File: test_state.py From djongo with GNU Affero General Public License v3.0 | 6 votes |
def test_custom_default_manager(self): new_apps = Apps(['migrations']) class Author(models.Model): manager1 = models.Manager() manager2 = models.Manager() class Meta: app_label = 'migrations' apps = new_apps default_manager_name = 'manager2' project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.options['default_manager_name'], 'manager2') self.assertEqual(author_state.managers, [('manager2', Author.manager1)])
Example #2
Source File: utils.py From coursys with GNU General Public License v3.0 | 6 votes |
def get_object_or_None(model_thing, **kwargs): """ Shortcut to catch the exception thrown by Model.objects.get if nothing is found and returns None instead. Example: obj = get_object_or_None(MyModelClass, id=3) """ if isinstance(model_thing, models.Manager): try: return model_thing.get(**kwargs) except model_thing.model.DoesNotExist: return None else: try: return model_thing.objects.get(**kwargs) except model_thing.DoesNotExist: return None
Example #3
Source File: models.py From bioforum with MIT License | 6 votes |
def deconstruct(self): kwargs = { 'name': self.name, 'fields': self.fields, } if self.options: kwargs['options'] = self.options if self.bases and self.bases != (models.Model,): kwargs['bases'] = self.bases if self.managers and self.managers != [('objects', models.Manager())]: kwargs['managers'] = self.managers return ( self.__class__.__qualname__, [], kwargs )
Example #4
Source File: utils.py From django-rest-framework-json-api with BSD 2-Clause "Simplified" License | 6 votes |
def get_relation_instance(resource_instance, source, serializer): try: relation_instance = operator.attrgetter(source)(resource_instance) except AttributeError: # if the field is not defined on the model then we check the serializer # and if no value is there we skip over the field completely serializer_method = getattr(serializer, source, None) if serializer_method and hasattr(serializer_method, '__call__'): relation_instance = serializer_method(resource_instance) else: return False, None if isinstance(relation_instance, Manager): relation_instance = relation_instance.all() return True, relation_instance
Example #5
Source File: models.py From GTDWeb with GNU General Public License v2.0 | 6 votes |
def deconstruct(self): kwargs = { 'name': self.name, 'fields': self.fields, } if self.options: kwargs['options'] = self.options if self.bases and self.bases != (models.Model,): kwargs['bases'] = self.bases if self.managers and self.managers != [('objects', models.Manager())]: kwargs['managers'] = self.managers return ( self.__class__.__name__, [], kwargs )
Example #6
Source File: models.py From Hands-On-Application-Development-with-PyCharm with MIT License | 6 votes |
def deconstruct(self): kwargs = { 'name': self.name, 'fields': self.fields, } if self.options: kwargs['options'] = self.options if self.bases and self.bases != (models.Model,): kwargs['bases'] = self.bases if self.managers and self.managers != [('objects', models.Manager())]: kwargs['managers'] = self.managers return ( self.__class__.__qualname__, [], kwargs )
Example #7
Source File: models.py From python with Apache License 2.0 | 6 votes |
def deconstruct(self): kwargs = { 'name': self.name, 'fields': self.fields, } if self.options: kwargs['options'] = self.options if self.bases and self.bases != (models.Model,): kwargs['bases'] = self.bases if self.managers and self.managers != [('objects', models.Manager())]: kwargs['managers'] = self.managers return ( self.__class__.__name__, [], kwargs )
Example #8
Source File: views.py From GetTogether with BSD 2-Clause "Simplified" License | 6 votes |
def to_representation(self, data): """ List of object instances -> List of dicts of primitive datatypes. """ # Dealing with nested relationships, data can be a Manager, # so, first get a queryset from the Manager if needed iterable = data.all() if isinstance(data, models.Manager) else data repr_data = OrderedDict( { "@context": "https://www.w3.org/ns/activitystreams", "summary": self.child.verbose_name_plural, "type": "Collection", "totalItems": len(iterable), "items": [self.child.to_representation(item) for item in iterable], } ) repr_data.move_to_end("@context", last=False) repr_data.move_to_end("items") return repr_data
Example #9
Source File: models.py From openhgsenti with Apache License 2.0 | 6 votes |
def deconstruct(self): kwargs = { 'name': self.name, 'fields': self.fields, } if self.options: kwargs['options'] = self.options if self.bases and self.bases != (models.Model,): kwargs['bases'] = self.bases if self.managers and self.managers != [('objects', models.Manager())]: kwargs['managers'] = self.managers return ( self.__class__.__name__, [], kwargs )
Example #10
Source File: models.py From python2017 with MIT License | 6 votes |
def deconstruct(self): kwargs = { 'name': self.name, 'fields': self.fields, } if self.options: kwargs['options'] = self.options if self.bases and self.bases != (models.Model,): kwargs['bases'] = self.bases if self.managers and self.managers != [('objects', models.Manager())]: kwargs['managers'] = self.managers return ( self.__class__.__name__, [], kwargs )
Example #11
Source File: mapping.py From django-seeker with BSD 2-Clause "Simplified" License | 6 votes |
def follow(obj, path, force_string=False): parts = path.split('__') if path else [] for idx, part in enumerate(parts): if hasattr(obj, 'get_%s_display' % part): # If the root object has a method to get the display value for this part, we're done (the rest of the path, # if any, is ignored). return getattr(obj, 'get_%s_display' % part)() else: # Otherwise, follow the yellow brick road. obj = getattr(obj, part, None) if isinstance(obj, models.Manager): # Managers are a special case - basically, branch and recurse over all objects with the remainder of the # path. This means any path with a Manager/ManyToManyField in it will always return a list, which I # think makes sense. new_path = '__'.join(parts[idx + 1:]) if new_path: return [follow(o, new_path, force_string=True) for o in obj.all()] if force_string and isinstance(obj, models.Model): return six.text_type(obj) return obj
Example #12
Source File: mapping.py From django-seeker with BSD 2-Clause "Simplified" License | 6 votes |
def serialize_object(obj, mapping, prepare=None): """ Given a Django model instance and a ``elasticsearch_dsl.Mapping`` or ``elasticsearch_dsl.InnerObject``, returns a dictionary of field data that should be indexed. """ data = {} for name in mapping: prep_func = getattr(prepare, 'prepare_%s' % name, None) if prep_func: data[name] = prep_func(obj) else: field = mapping[name] value = follow(obj, name) if value is not None: if isinstance(value, models.Model): data[name] = serialize_object(value, field.properties) if isinstance(field, InnerObject) else six.text_type(value) elif isinstance(value, models.Manager): if isinstance(field, InnerObject): data[name] = [serialize_object(v, field.properties) for v in value.all()] else: data[name] = [six.text_type(v) for v in value.all()] else: data[name] = value return data
Example #13
Source File: test_state.py From django-sqlserver with MIT License | 6 votes |
def test_custom_default_manager_added_to_the_model_state(self): """ When the default manager of the model is a custom manager, it needs to be added to the model state. """ new_apps = Apps(['migrations']) custom_manager = models.Manager() class Author(models.Model): objects = models.TextField() authors = custom_manager class Meta: app_label = 'migrations' apps = new_apps project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.managers, [('authors', custom_manager)])
Example #14
Source File: test_state.py From django-sqlserver with MIT License | 6 votes |
def test_custom_default_manager_named_objects_with_false_migration_flag(self): """ When a manager is added with a name of 'objects' but it does not have `use_in_migrations = True`, no migration should be added to the model state (#26643). """ new_apps = Apps(['migrations']) class Author(models.Model): objects = models.Manager() class Meta: app_label = 'migrations' apps = new_apps project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.managers, [])
Example #15
Source File: test_state.py From django-sqlserver with MIT License | 6 votes |
def test_custom_default_manager(self): new_apps = Apps(['migrations']) class Author(models.Model): manager1 = models.Manager() manager2 = models.Manager() class Meta: app_label = 'migrations' apps = new_apps default_manager_name = 'manager2' project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.options['default_manager_name'], 'manager2') self.assertEqual(author_state.managers, [('manager2', Author.manager1)])
Example #16
Source File: representation.py From Dailyfresh-B2C with Apache License 2.0 | 6 votes |
def smart_repr(value): if isinstance(value, models.Manager): return manager_repr(value) if isinstance(value, Promise) and value._delegate_text: value = force_text(value) value = unicode_repr(value) # Representations like u'help text' # should simply be presented as 'help text' if value.startswith("u'") and value.endswith("'"): return value[1:] # Representations like # <django.core.validators.RegexValidator object at 0x1047af050> # Should be presented as # <django.core.validators.RegexValidator object> value = re.sub(' at 0x[0-9A-Fa-f]{4,32}>', '>', value) return value
Example #17
Source File: test_state.py From djongo with GNU Affero General Public License v3.0 | 6 votes |
def test_custom_default_manager_added_to_the_model_state(self): """ When the default manager of the model is a custom manager, it needs to be added to the model state. """ new_apps = Apps(['migrations']) custom_manager = models.Manager() class Author(models.Model): objects = models.TextField() authors = custom_manager class Meta: app_label = 'migrations' apps = new_apps project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.managers, [('authors', custom_manager)])
Example #18
Source File: test_state.py From djongo with GNU Affero General Public License v3.0 | 6 votes |
def test_custom_default_manager_named_objects_with_false_migration_flag(self): """ When a manager is added with a name of 'objects' but it does not have `use_in_migrations = True`, no migration should be added to the model state (#26643). """ new_apps = Apps(['migrations']) class Author(models.Model): objects = models.Manager() class Meta: app_label = 'migrations' apps = new_apps project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.managers, [])
Example #19
Source File: test_operations.py From django-sqlserver with MIT License | 5 votes |
def test_create_model(self): """ Tests the CreateModel operation. Most other tests use this operation as part of setup, so check failures here first. """ operation = migrations.CreateModel( "Pony", [ ("id", models.AutoField(primary_key=True)), ("pink", models.IntegerField(default=1)), ], ) self.assertEqual(operation.describe(), "Create model Pony") # Test the state alteration project_state = ProjectState() new_state = project_state.clone() operation.state_forwards("test_crmo", new_state) self.assertEqual(new_state.models["test_crmo", "pony"].name, "Pony") self.assertEqual(len(new_state.models["test_crmo", "pony"].fields), 2) # Test the database alteration self.assertTableNotExists("test_crmo_pony") with connection.schema_editor() as editor: operation.database_forwards("test_crmo", editor, project_state, new_state) self.assertTableExists("test_crmo_pony") # And test reversal with connection.schema_editor() as editor: operation.database_backwards("test_crmo", editor, new_state, project_state) self.assertTableNotExists("test_crmo_pony") # And deconstruction definition = operation.deconstruct() self.assertEqual(definition[0], "CreateModel") self.assertEqual(definition[1], []) self.assertEqual(sorted(definition[2].keys()), ["fields", "name"]) # And default manager not in set operation = migrations.CreateModel("Foo", fields=[], managers=[("objects", models.Manager())]) definition = operation.deconstruct() self.assertNotIn('managers', definition[2])
Example #20
Source File: test_writer.py From django-sqlserver with MIT License | 5 votes |
def test_serialize_managers(self): self.assertSerializedEqual(models.Manager()) self.assertSerializedResultEqual( FoodQuerySet.as_manager(), ('migrations.models.FoodQuerySet.as_manager()', {'import migrations.models'}) ) self.assertSerializedEqual(FoodManager('a', 'b')) self.assertSerializedEqual(FoodManager('x', 'y', c=3, d=4))
Example #21
Source File: test_state.py From django-sqlserver with MIT License | 5 votes |
def test_custom_base_manager(self): new_apps = Apps(['migrations']) class Author(models.Model): manager1 = models.Manager() manager2 = models.Manager() class Meta: app_label = 'migrations' apps = new_apps base_manager_name = 'manager2' class Author2(models.Model): manager1 = models.Manager() manager2 = models.Manager() class Meta: app_label = 'migrations' apps = new_apps base_manager_name = 'manager1' project_state = ProjectState.from_apps(new_apps) author_state = project_state.models['migrations', 'author'] self.assertEqual(author_state.options['base_manager_name'], 'manager2') self.assertEqual(author_state.managers, [ ('manager1', Author.manager1), ('manager2', Author.manager2), ]) author2_state = project_state.models['migrations', 'author2'] self.assertEqual(author2_state.options['base_manager_name'], 'manager1') self.assertEqual(author2_state.managers, [ ('manager1', Author2.manager1), ])
Example #22
Source File: test_operations.py From django-sqlserver with MIT License | 5 votes |
def test_create_model_with_duplicate_manager_name(self): with self.assertRaisesMessage(ValueError, 'Found duplicate value objects in CreateModel managers argument.'): migrations.CreateModel( "Pony", fields=[], managers=[ ("objects", models.Manager()), ("objects", models.Manager()), ], )
Example #23
Source File: test_operations.py From django-sqlserver with MIT License | 5 votes |
def test_alter_model_managers(self): """ The managers on a model are set. """ project_state = self.set_up_test_model("test_almoma") # Test the state alteration operation = migrations.AlterModelManagers( "Pony", managers=[ ("food_qs", FoodQuerySet.as_manager()), ("food_mgr", FoodManager("a", "b")), ("food_mgr_kwargs", FoodManager("x", "y", 3, 4)), ] ) self.assertEqual(operation.describe(), "Change managers on Pony") managers = project_state.models["test_almoma", "pony"].managers self.assertEqual(managers, []) new_state = project_state.clone() operation.state_forwards("test_almoma", new_state) self.assertIn(("test_almoma", "pony"), new_state.models) managers = new_state.models["test_almoma", "pony"].managers self.assertEqual(managers[0][0], "food_qs") self.assertIsInstance(managers[0][1], models.Manager) self.assertEqual(managers[1][0], "food_mgr") self.assertIsInstance(managers[1][1], FoodManager) self.assertEqual(managers[1][1].args, ("a", "b", 1, 2)) self.assertEqual(managers[2][0], "food_mgr_kwargs") self.assertIsInstance(managers[2][1], FoodManager) self.assertEqual(managers[2][1].args, ("x", "y", 3, 4)) rendered_state = new_state.apps model = rendered_state.get_model('test_almoma', 'pony') self.assertIsInstance(model.food_qs, models.Manager) self.assertIsInstance(model.food_mgr, FoodManager) self.assertIsInstance(model.food_mgr_kwargs, FoodManager)
Example #24
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(category=None).exclude(title='') # The first Manager in a class is used as default
Example #25
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(nop_team=False) # The first Manager in a class is used as default
Example #26
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(category=None).exclude(title='') # The first Manager in a class is used as default
Example #27
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(category=None).exclude(title='') # The first Manager in a class is used as default
Example #28
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(nop_team=False) # The first Manager in a class is used as default
Example #29
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(category=None).exclude(title='') # The first Manager in a class is used as default
Example #30
Source File: models.py From ctf-gameserver with ISC License | 5 votes |
def get_queryset(self): return super().get_queryset().filter(category=None).exclude(title='') # The first Manager in a class is used as default