Python django.db.models.signals.post_init() Examples

The following are 10 code examples of django.db.models.signals.post_init(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module django.db.models.signals , or try the search function .
Example #1
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 6 votes vote down vote up 
def test_disconnect(self, apps):
        received = []

        def receiver(**kwargs):
            received.append(kwargs)

        signals.post_init.connect(receiver, sender='signals.Created', apps=apps)
        signals.post_init.disconnect(receiver, sender='signals.Created', apps=apps)

        class Created(models.Model):
            pass

        Created()
        self.assertEqual(received, [])
Example #2
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_model_pre_init_and_post_init(self):
        data = []

        def pre_init_callback(sender, args, **kwargs):
            data.append(kwargs['kwargs'])
        signals.pre_init.connect(pre_init_callback)

        def post_init_callback(sender, instance, **kwargs):
            data.append(instance)
        signals.post_init.connect(post_init_callback)

        p1 = Person(first_name="John", last_name="Doe")
        self.assertEqual(data, [{}, p1])
Example #3
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_invalid_sender_model_name(self):
        msg = "Invalid model reference 'invalid'. String model references must be of the form 'app_label.ModelName'."
        with self.assertRaisesMessage(ValueError, msg):
            signals.post_init.connect(self.receiver, sender='invalid')
Example #4
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_already_loaded_model(self):
        signals.post_init.connect(
            self.receiver, sender='signals.Book', weak=False
        )
        try:
            instance = Book()
            self.assertEqual(self.received, [{
                'signal': signals.post_init,
                'sender': Book,
                'instance': instance
            }])
        finally:
            signals.post_init.disconnect(self.receiver, sender=Book)
Example #5
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_not_loaded_model(self, apps):
        signals.post_init.connect(
            self.receiver, sender='signals.Created', weak=False, apps=apps
        )

        try:
            class Created(models.Model):
                pass

            instance = Created()
            self.assertEqual(self.received, [{
                'signal': signals.post_init, 'sender': Created, 'instance': instance
            }])
        finally:
            signals.post_init.disconnect(self.receiver, sender=Created)
Example #6
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_model_pre_init_and_post_init(self):
        data = []

        def pre_init_callback(sender, args, **kwargs):
            data.append(kwargs['kwargs'])
        signals.pre_init.connect(pre_init_callback)

        def post_init_callback(sender, instance, **kwargs):
            data.append(instance)
        signals.post_init.connect(post_init_callback)

        p1 = Person(first_name="John", last_name="Doe")
        self.assertEqual(data, [{}, p1])
Example #7
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_invalid_sender_model_name(self):
        msg = "Invalid model reference 'invalid'. String model references must be of the form 'app_label.ModelName'."
        with self.assertRaisesMessage(ValueError, msg):
            signals.post_init.connect(self.receiver, sender='invalid')
Example #8
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_already_loaded_model(self):
        signals.post_init.connect(
            self.receiver, sender='signals.Book', weak=False
        )
        try:
            instance = Book()
            self.assertEqual(self.received, [{
                'signal': signals.post_init,
                'sender': Book,
                'instance': instance
            }])
        finally:
            signals.post_init.disconnect(self.receiver, sender=Book)
Example #9
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_not_loaded_model(self, apps):
        signals.post_init.connect(
            self.receiver, sender='signals.Created', weak=False, apps=apps
        )

        try:
            class Created(models.Model):
                pass

            instance = Created()
            self.assertEqual(self.received, [{
                'signal': signals.post_init, 'sender': Created, 'instance': instance
            }])
        finally:
            signals.post_init.disconnect(self.receiver, sender=Created)
Example #10
Source File: tests.py    From djongo with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_disconnect(self, apps):
        received = []

        def receiver(**kwargs):
            received.append(kwargs)

        signals.post_init.connect(receiver, sender='signals.Created', apps=apps)
        signals.post_init.disconnect(receiver, sender='signals.Created', apps=apps)

        class Created(models.Model):
            pass

        Created()
        self.assertEqual(received, [])