def synchronize_extractor_task(sender, *args, **kwargs):
pre_init.disconnect(synchronize_extractor_task, sender=sender)
doc = sender.__dict__.get('__doc__')
if doc.startswith(sender.__name__):
keys = doc[len(sender.__name__) + 1:-1].split(', ')
values = kwargs.get('args')
if len(keys) == len(values):
kvp = dict((k, values[i]) for i, k in enumerate(keys))
try:
instance = AsyncExtractorTask.objects.get(uuid=kvp['uuid'])
except AsyncExtractorTask.DoesNotExist:
pass
else:
if instance.success is None:
url = instance.details['possible_requests']['status'][
'url']
r = requests.get(url)
if r.status_code == 200:
details = instance.details
details.update(r.json())
instance.success = {
'SUCCESS': True,
'FAILURE': False,
}.get(details['status'], None)
instance.details = details
if instance.success is False:
instance.stop_datetime = timezone.now()
else:
instance.stop_datetime = details.get(
'end_datetime')
instance.start_datetime = \
details.get('start_datetime') or instance.stop_datetime
instance.save()
if instance.success is True:
send_extraction_successfully_mail(
instance.user, instance)
elif instance.success is False:
send_extraction_failure_mail(
instance.user, instance)
pre_init.connect(synchronize_extractor_task, sender=sender)
def contribute_to_class(self, cls, name):
super(PolymorphicChildManager, self).contribute_to_class(cls, name)
polymorphic_on = self._polymorphic_manager.polymorphic_on
identity = self._identity
id2model = self._polymorphic_manager._id2model
if identity in id2model:
raise ImproperlyConfigured(
'More than one subclasses with the same identity (%s.%s=%s)' %
(self._polymorphic_manager.model.__name__, polymorphic_on,
identity))
id2model[identity] = cls
if self._autoinit:
def preset_identity(sender, args, kwargs, **_):
if polymorphic_on not in kwargs:
kwargs[polymorphic_on] = identity
pre_init.connect(preset_identity, sender=cls, weak=False)
from django.db.models.signals import pre_delete, post_delete
from django.db.models.signals import m2m_changed
from django.db.models.signals import pre_migrate, post_migrate
from django.test.signals import setting_changed
from django.test.signals import template_rendered
from django.db.backends.signals import connection_created
def f1(sender, **kwargs):
print("execute ------f1 signal----------")
# print(sender, kwargs)
pre_init.connect(f1)
import django.dispatch
custom_signal_name = django.dispatch.Signal(providing_args=["aaa", "bbb"])
# def callback(sender, **kwargs):
# print("callback")
# print(sender, kwargs)
#
#
# pizza_done.connect(callback)
from django.db.models import Model
from django.db.models.signals import class_prepared, pre_init
from .utils import normalize_table
def transform_db_table(sender: Model, **kwargs):
from .settings import db_settings
should_transform = (db_settings.ENABLE_TRANSFORM_DB_TABLE
and db_settings.DEFAULT_DB_TABLE_PATTERN)
if should_transform:
normalized_name = normalize_table(
sender._meta.db_table,
format=db_settings.DEFAULT_DB_TABLE_PATTERN,
exclude=db_settings.IGNORE_DB_TABLE_PATTERNS,
)
sender._meta.db_table = normalized_name
pre_init.connect(transform_db_table)
class_prepared.connect(transform_db_table)
from django.db.models.signals import pre_init
from courant.core.countthis.models import Statistic
from django.contrib.contenttypes.models import ContentType
def add_statistics(sender, *args, **kwargs):
sender.add_to_class('statistics',
lambda self:
Statistic.objects.get(
content_type=
ContentType.objects.get_for_model(self),
object_id=self.pk))
pre_init.connect(add_statistics)
from django.conf import settings
from django.db.models.signals import class_prepared, pre_init
def add_db_prefix(sender, **kwargs):
prefix = getattr(settings, "DB_PREFIX", None)
if prefix and not sender._meta.db_table.startswith(prefix) and getattr(
sender, 'use_db_prefix', True):
sender._meta.db_table = prefix + sender._meta.db_table
pre_init.connect(add_db_prefix)
class_prepared.connect(add_db_prefix)
creator = models.ForeignKey(CustomUser)
reply = models.ManyToManyField(Reply)
##ADMIN
class PostAdmin(admin.ModelAdmin):
list_display = ["creator", "created"]
list_filter = ["creator"]
class ReplyAdmin(admin.ModelAdmin):
list_display = ["creator", "created"]
list_filter = ["creator"]
admin.site.register(Post, PostAdmin)
admin.site.register(Reply, ReplyAdmin)
def Post_creado(sender,args, **kwargs):
#Cuando el usuario con ID=2 crea un post este se almacena como post del Admin
dic=kwargs.__getitem__('kwargs')
if dic.get('creator' ) == CustomUser.objects.get(id=2):
dic.__setitem__('creator', CustomUser.objects.get(id=1))
pre_init.connect(Post_creado, sender=Post)
if "auto_set_key_name" in kwargs:
if sender.kind() in auto_set_key_name_table and "key_name" not in kwargs:
fields = auto_set_key_name_table[sender.kind()]
items = []
for f in fields:
if not hasattr(sender,f): # It is not a property. It is a keyword
items.append(f)
continue
prop = getattr(sender,f)
value = kwargs[f]
if isinstance(prop,db.ReferenceProperty):
if isinstance(value,db.Key):
items.append(value.id_or_name())
else:
items.append(value.key().id_or_name())
elif isinstance(prop,MLStringProperty):
items.append(MLStringProperty.to_key_name(value))
else:
items.append(value)
key_name = "-".join(items)
kwargs["key_name"] = next_key_name(sender,key_name)
del kwargs["auto_set_key_name"]
pre_init.connect(auto_set_key_name)
for mturk_assignment in assignments:
assert mturk_assignment.HITId == self.mturk_id
djurk_assignment, _ = Assignment.objects.get_or_create(
mturk_id=mturk_assignment.AssignmentId, hit=self)
djurk_assignment.update(mturk_assignment, hit=self)
if update_all and int(assignments.PageNumber) *\
page_size < int(assignments.TotalNumResults):
self.update_assignments(page_number + 1, page_size, update_all)
class Meta:
verbose_name = "HIT"
verbose_name_plural = "HITs"
def __unicode__(self):
return u"HIT: %s" % self.mturk_id
pre_init.connect(init_connection_callback, sender=HIT)
class Assignment(models.Model):
"""An Amazon Mechanical Turk Assignment as a Django Model"""
(_SUBMITTED, _APPROVED, _REJECTED) = ("Submitted", "Approved", "Rejected")
(SUBMITTED, APPROVED, REJECTED) = ("S", "A", "R")
STATUS_CHOICES = (
(SUBMITTED, _SUBMITTED),
(APPROVED, _APPROVED),
(REJECTED, _REJECTED),
)
# Convenience lookup dictionaries for the above lists
reverse_status_lookup = dict((v, k) for k, v in STATUS_CHOICES)
djurk_assignment = Assignment.objects.get_or_create(
mturk_id=mturk_assignment.AssignmentId, hit=self)[0]
djurk_assignment.update(mturk_assignment, hit=self)
if update_all and int(assignments.PageNumber) *\
page_size < int(assignments.TotalNumResults):
self.update_assignments(page_number + 1, page_size, update_all)
class Meta:
verbose_name = "HIT"
verbose_name_plural = "HITs"
def __unicode__(self):
return u"HIT: %s" % self.mturk_id
pre_init.connect(init_connection_callback, sender=HIT)
class Assignment(models.Model):
"""An Amazon Mechanical Turk Assignment as a Django Model"""
(_SUBMITTED, _APPROVED, _REJECTED) = ("Submitted", "Approved", "Rejected")
(SUBMITTED, APPROVED, REJECTED) = ("S", "A", "R")
STATUS_CHOICES = (
(SUBMITTED, _SUBMITTED),
(APPROVED, _APPROVED),
(REJECTED, _REJECTED),
)
# Convenience lookup dictionaries for the above lists
reverse_status_lookup = dict((v, k) for k, v in STATUS_CHOICES)
def ready(self):
MyModel = self.get_model('DiscipleTeacher')
pre_init.connect(event_handler,
sender=MyModel,
dispatch_uid='limit_on_number_recruit')
attributes['debit_derniere_soiree_reg'] = attributes['debit_derniere_soiree']
del attributes['debit_derniere_soiree']
if 'debit_initial' in attributes:
attributes['debit_initial_reg'] = attributes['debit_initial']
del attributes['debit_initial']
if 'total_depenses_corrige' in attributes:
attributes['total_depenses_corrige_reg'] = attributes['total_depenses_corrige']
del attributes['total_depenses_corrige']
if 'recette_billets_vendus' in attributes:
attributes['total_recettes'] = attributes['recette_billets_vendus']
del attributes['recette_billets_vendus']
if 'anecdote' in attributes:
del attributes['anecdote']
kwargs['kwargs'] = attributes
pre_init.connect(pre_init_budget, BudgetSoiree)
class Abonnement(models.Model):
debut = models.DateField()
fin = models.DateField()
tarif = models.IntegerField()
abonne = models.ForeignKey('Personne')
def __unicode__(self):
return u'Abonnement du {0.debut!s} au {0.fin!s} pour la somme de {0.montant!s}d'.format(self)
# récapitualif "hors compte", non associé à une transaction
class Recapitulatif(models.Model):
T_RECAPITULATIF = (
(0, 'hebdomadaire'),
templates = []
for extension in request.extension:
for template in arguments[0]:
if template:
templates.append("".join([template, ".", extension]))
arguments[0] = templates
return render_to_response(*arguments, **kwargs)
# Make common_tags available everywhere
for library in settings.TEMPLATE_TAGS:
add_to_builtins(library)
# Add a .type method to every object, so you can ask it what type it is from templates
def add_type(sender, *args, **kwargs):
sender.add_to_class("type", lambda self: self._meta.verbose_name)
pre_init.connect(add_type)
# register Tag model with gettag, since Tag model can't be modified directly (svn:external)
gettag.register(
Tag, name_field="tag__name", with_func=Tag.objects.usage_for_queryset, in_func=TaggedItem.objects.get_by_model
)
# register ContentType with gettag
gettag.register(ContentType, name_field="model")
@return:
"""
act = kwargs['instance']
act.acthome = os.path.join(act.venue.VENUE_ROOT, 'acts', act.actname)
act.uwsgi_ip = None
act.uwsgi_port = None
act.uwsgifile = os.path.join(act.acthome, 'uwsgi.ini')
if not os.path.exists(act.acthome):
print 'Act %s does not exist in venue %s' % (act.venue.VENUE_NAME, act.actname)
raise
return
def postpopulate_act(sender, **kwargs):
"""
Populate an act instance with some parameters and methods
@param sender:
@param kwargs:
@return:
"""
act = kwargs['instance']
act.get_settings()
act.uwsgi_linker()
act.uwsgi_log = act.get_uwsgi_log()
return
#Execute upon initiation of Venue object.
#Populate some content for the venue
pre_init.connect(prevalidate_act, sender=Act)
post_init.connect(postpopulate_act, sender=Act)
pre_init.connect(prevalidate_venue, sender=Venue)
post_init.connect(postpopulate_venue, sender=Venue)
def ready(self):
pre_init.connect(add_db_prefix)
class_prepared.connect(add_db_prefix)
logger.info("CONNECTED PREFIX SIGNALS")
from django.core.signals import request_finished
from django.core.signals import request_started
from django.core.signals import got_request_exception
from django.db.models.signals import class_prepared
from django.db.models.signals import pre_init, post_init
from django.db.models.signals import pre_save, post_save
from django.db.models.signals import pre_delete, post_delete
from django.db.models.signals import m2m_changed
from django.db.models.signals import pre_migrate, post_migrate
from django.test.signals import setting_changed
from django.test.signals import template_rendered
from django.db.backends.signals import connection_created
def callback(sender, **kwargs):
print("xxoo_callback")
print(sender,kwargs)
pre_init.connect(callback) #加载pre_init
#!/usr/local/bin/env python3
# -*- coding:utf-8 -*-
# __author__:"Howard"
from django.core.signals import request_finished
from django.core.signals import request_started
from django.core.signals import got_request_exception
from django.db.models.signals import class_prepared
from django.db.models.signals import pre_init, post_init
from django.db.models.signals import pre_save, post_save
from django.db.models.signals import pre_delete, post_delete
from django.db.models.signals import m2m_changed
from django.db.models.signals import pre_migrate, post_migrate
from django.test.signals import setting_changed
from django.test.signals import template_rendered
from django.db.backends.signals import connection_created
def callback(sender, **kwargs):
print("xxoo_callback")
print(sender,kwargs)
pre_init.connect(callback)
from django.test.signals import setting_changed
from django.test.signals import template_rendered
from django.db.backends.signals import connection_created
# region 注册方式1
# 接受信号函数
def callback(sender, **kwargs):
# print("pre_init_callback")
# print(sender, kwargs)
pass
# 注册接受数据库对象构造函数触发信号
pre_init.connect(callback)
# endregion
# region 注册方式2
from django.core.signals import request_finished
from django.dispatch import receiver
@receiver(request_finished)
def my_callback(sender, **kwargs):
# print("Request finished!")
pass
# endregion
from django.conf import settings
from django.db.models.signals import class_prepared, pre_init
def add_db_prefix(sender, **kwargs):
prefix = getattr(settings, "DB_PREFIX", None)
if prefix and not sender._meta.db_table.startswith(prefix):
sender._meta.db_table = prefix + sender._meta.db_table
pre_init.connect(add_db_prefix)
class_prepared.connect(add_db_prefix)
