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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
fields	[ DIR ]	drwxr-xr-x
functions	[ DIR ]	drwxr-xr-x
sql	[ DIR ]	drwxr-xr-x
__init__.py	2.46 KB	-rw-r--r--
aggregates.py	5.79 KB	-rw-r--r--
base.py	87.95 KB	-rw-r--r--
constants.py	117 B	-rw-r--r--
constraints.py	7.61 KB	-rw-r--r--
deletion.py	19.29 KB	-rw-r--r--
enums.py	2.69 KB	-rw-r--r--
expressions.py	51.01 KB	-rw-r--r--
indexes.py	11.02 KB	-rw-r--r--
lookups.py	22.76 KB	-rw-r--r--
manager.py	6.62 KB	-rw-r--r--
options.py	35.93 KB	-rw-r--r--
query.py	82.58 KB	-rw-r--r--
query_utils.py	12.38 KB	-rw-r--r--
signals.py	1.54 KB	-rw-r--r--
utils.py	1.57 KB	-rw-r--r--

Code Editor : signals.py

from functools import partial

from django.db.models.utils import make_model_tuple
from django.dispatch import Signal

class_prepared = Signal()

class ModelSignal(Signal):
    """
    Signal subclass that allows the sender to be lazily specified as a string
    of the `app_label.ModelName` form.
    """
    def _lazy_method(self, method, apps, receiver, sender, **kwargs):
        from django.db.models.options import Options

# This partial takes a single optional argument named "sender".
        partial_method = partial(method, receiver, **kwargs)
        if isinstance(sender, str):
            apps = apps or Options.default_apps
            apps.lazy_model_operation(partial_method, make_model_tuple(sender))
        else:
            return partial_method(sender)

def connect(self, receiver, sender=None, weak=True, dispatch_uid=None, apps=None):
        self._lazy_method(
            super().connect, apps, receiver, sender,
            weak=weak, dispatch_uid=dispatch_uid,
        )

def disconnect(self, receiver=None, sender=None, dispatch_uid=None, apps=None):
        return self._lazy_method(
            super().disconnect, apps, receiver, sender, dispatch_uid=dispatch_uid
        )

pre_init = ModelSignal(use_caching=True)
post_init = ModelSignal(use_caching=True)

pre_save = ModelSignal(use_caching=True)
post_save = ModelSignal(use_caching=True)

pre_delete = ModelSignal(use_caching=True)
post_delete = ModelSignal(use_caching=True)

m2m_changed = ModelSignal(use_caching=True)

pre_migrate = Signal()
post_migrate = Signal()

${this.title}

Code Editor : signals.py