Python Django模型在创建后保存两次
我不知道我的模型是如何保存两次的。该模型称为Python Django模型在创建后保存两次,python,django,django-models,django-views,Python,Django,Django Models,Django Views,我不知道我的模型是如何保存两次的。该模型称为Job。如果客户创建订单,则会创建作业实例。创建后,会出现一个信号,提醒管理员新的作业对象已创建或编辑 @receiver(post_save,sender=Job) def alert_admin(sender,instance,created,**kwargs): if created: email.AdminNotifications.new_order(instance) else: email.
Job
。如果客户创建订单,则会创建作业
实例。创建后,会出现一个信号,提醒管理员新的作业
对象已创建或编辑
@receiver(post_save,sender=Job)
def alert_admin(sender,instance,created,**kwargs):
if created:
email.AdminNotifications.new_order(instance)
else:
email.AdminNotifications.edited_order(instance)
编辑:我已经找到了问题的原因,这是一个信号(问题的最底层)。但是,我确实需要这个信号,所以我仍然不知道如何让它工作。。。 问题是
Admin
在User
创建作业后会收到两封电子邮件。一封邮件是订单已创建,第二封邮件是订单已编辑
我怀疑这是因为我重写了save
和init
方法,在Job
属性-approved
更改时创建了类似signal
的内容。
我发现这里的建议是因为在创建作业
后,管理员必须对其进行批准-只需更改作业
对象的已批准
属性的值
我正在附加视图
,其中创建了作业
,并为作业
建模
查看:
def create_order(request):
LanguageLevelFormSet = formset_factory(LanguageLevelForm, extra=5, max_num=5)
language_level_formset = LanguageLevelFormSet(request.POST or None)
job_creation_form = JobCreationForm(request.POST or None, request.FILES or None)
context = {'job_creation_form': job_creation_form,
'formset': language_level_formset}
if request.method == 'POST':
if job_creation_form.is_valid() and language_level_formset.is_valid():
cleaned_data_job_creation_form = job_creation_form.cleaned_data
cleaned_data_language_level_formset = language_level_formset.cleaned_data
for language_level_form in [d for d in cleaned_data_language_level_formset if d]:
language = language_level_form['language']
level = language_level_form['level']
Job.objects.create(
customer=request.user,
text_to_translate=cleaned_data_job_creation_form['text_to_translate'],
file=cleaned_data_job_creation_form['file'],
short_description=cleaned_data_job_creation_form['short_description'],
notes=cleaned_data_job_creation_form['notes'],
language_from=cleaned_data_job_creation_form['language_from'],
language_to=language,
level=level,
)
return HttpResponseRedirect('/order-success')
else:
return render(request, 'auth/jobs/create-job.html', context=context)
return render(request, 'auth/jobs/create-job.html', context=context)
class Job(models.Model):
customer = models.ForeignKey(User, related_name='orders', help_text=_("Customer"), on_delete=models.CASCADE)
translator = models.ForeignKey(User, related_name='jobs', null=True, blank=True, help_text=_(u"Translator"))
price = models.FloatField(null=True, blank=True, help_text=_(u"Price"))
language_from = models.ForeignKey(Language, related_name='jobs_from', null=True)
language_to = models.ForeignKey(Language, related_name='jobs_to', null=True)
short_description = models.CharField(max_length=40, blank=False,
help_text=_(u"Very short description of this order"))
notes = models.TextField(help_text=_("Notes"))
text_to_translate = models.TextField(verbose_name='Text to translate', blank=True, null=True,
help_text=u"Text, ktorý chcete preložiť (ak neprikladáte súbor).")
file = models.FileField(null=True, blank=True, help_text=u"Upload file")
level = models.ForeignKey(Level, null=False, default=None)
delivery_date = models.DateField(null=True, blank=True, help_text=_('Deadline'))
PROGRESS_CHOICES = (
('translator_not_assigned_yet', 'Translator not assigned yet'),
('in_translation_process', 'In translation process'),
('translated', 'Translated'),
('complete', 'Complete')
)
progress = models.CharField(choices=PROGRESS_CHOICES, max_length=40, default='translator_not_assigned_yet')
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
is_active = models.BooleanField(default=False)
is_done = models.BooleanField(default=False)
approved = models.BooleanField(default=False)
__original_approved = None
def __init__(self, *args, **kwargs):
super(Job, self).__init__(*args, **kwargs)
self.__original_approved = self.approved
def save(self, force_insert=False, force_update=False, *args, **kwargs):
if self.approved != self.__original_approved and self.approved == True:
send_job_alert(self)
else:
pass
super(Job, self).save(force_insert, force_update, *args, **kwargs)
self.__original_approved = self.approved
@staticmethod
def get_approved_pending_jobs():
approved_pending_jobs = Job.objects.filter(approved=True, delivery__status='pending')
return approved_pending_jobs
@staticmethod
def get_open_jobs_for_user(user):
results = set()
candidate_jobs = Job.objects.filter(language_from__in=user.userprofile.languages_verified,
language_to__in=user.userprofile.languages_verified,
delivery__status='pending',
).exclude(customer=user)
for job in candidate_jobs:
if job.level.name <= user.userprofile.language_levels.get(language=job.language_to).level.name:
results.add(job)
return list(results)
@property
def has_translator(self):
return self.translator_id is not None
@receiver(post_save,sender=Job)
def create_delivery(sender,instance,created,**kwargs):
if created:
delivery,created_delivery = Delivery.objects.get_or_create(job=instance)
instance.delivery = delivery
delivery.save()
instance.save()
作业:
def create_order(request):
LanguageLevelFormSet = formset_factory(LanguageLevelForm, extra=5, max_num=5)
language_level_formset = LanguageLevelFormSet(request.POST or None)
job_creation_form = JobCreationForm(request.POST or None, request.FILES or None)
context = {'job_creation_form': job_creation_form,
'formset': language_level_formset}
if request.method == 'POST':
if job_creation_form.is_valid() and language_level_formset.is_valid():
cleaned_data_job_creation_form = job_creation_form.cleaned_data
cleaned_data_language_level_formset = language_level_formset.cleaned_data
for language_level_form in [d for d in cleaned_data_language_level_formset if d]:
language = language_level_form['language']
level = language_level_form['level']
Job.objects.create(
customer=request.user,
text_to_translate=cleaned_data_job_creation_form['text_to_translate'],
file=cleaned_data_job_creation_form['file'],
short_description=cleaned_data_job_creation_form['short_description'],
notes=cleaned_data_job_creation_form['notes'],
language_from=cleaned_data_job_creation_form['language_from'],
language_to=language,
level=level,
)
return HttpResponseRedirect('/order-success')
else:
return render(request, 'auth/jobs/create-job.html', context=context)
return render(request, 'auth/jobs/create-job.html', context=context)
class Job(models.Model):
customer = models.ForeignKey(User, related_name='orders', help_text=_("Customer"), on_delete=models.CASCADE)
translator = models.ForeignKey(User, related_name='jobs', null=True, blank=True, help_text=_(u"Translator"))
price = models.FloatField(null=True, blank=True, help_text=_(u"Price"))
language_from = models.ForeignKey(Language, related_name='jobs_from', null=True)
language_to = models.ForeignKey(Language, related_name='jobs_to', null=True)
short_description = models.CharField(max_length=40, blank=False,
help_text=_(u"Very short description of this order"))
notes = models.TextField(help_text=_("Notes"))
text_to_translate = models.TextField(verbose_name='Text to translate', blank=True, null=True,
help_text=u"Text, ktorý chcete preložiť (ak neprikladáte súbor).")
file = models.FileField(null=True, blank=True, help_text=u"Upload file")
level = models.ForeignKey(Level, null=False, default=None)
delivery_date = models.DateField(null=True, blank=True, help_text=_('Deadline'))
PROGRESS_CHOICES = (
('translator_not_assigned_yet', 'Translator not assigned yet'),
('in_translation_process', 'In translation process'),
('translated', 'Translated'),
('complete', 'Complete')
)
progress = models.CharField(choices=PROGRESS_CHOICES, max_length=40, default='translator_not_assigned_yet')
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now=True)
is_active = models.BooleanField(default=False)
is_done = models.BooleanField(default=False)
approved = models.BooleanField(default=False)
__original_approved = None
def __init__(self, *args, **kwargs):
super(Job, self).__init__(*args, **kwargs)
self.__original_approved = self.approved
def save(self, force_insert=False, force_update=False, *args, **kwargs):
if self.approved != self.__original_approved and self.approved == True:
send_job_alert(self)
else:
pass
super(Job, self).save(force_insert, force_update, *args, **kwargs)
self.__original_approved = self.approved
@staticmethod
def get_approved_pending_jobs():
approved_pending_jobs = Job.objects.filter(approved=True, delivery__status='pending')
return approved_pending_jobs
@staticmethod
def get_open_jobs_for_user(user):
results = set()
candidate_jobs = Job.objects.filter(language_from__in=user.userprofile.languages_verified,
language_to__in=user.userprofile.languages_verified,
delivery__status='pending',
).exclude(customer=user)
for job in candidate_jobs:
if job.level.name <= user.userprofile.language_levels.get(language=job.language_to).level.name:
results.add(job)
return list(results)
@property
def has_translator(self):
return self.translator_id is not None
@receiver(post_save,sender=Job)
def create_delivery(sender,instance,created,**kwargs):
if created:
delivery,created_delivery = Delivery.objects.get_or_create(job=instance)
instance.delivery = delivery
delivery.save()
instance.save()
在按照连接接收器时添加调度\u uuid
你能告诉我们你在作业
类中重写的保存
和初始化
方法吗?你可以在问题的底部找到它。我有一个职业班。有init和save两种方法,我添加了完整的工作模型,因为我不完全确定什么会导致问题。self.\uuu original\u approved
确实有点黑客味。查看此问题,了解不同的方法。我看不出信号会被触发两次的明显原因。我会使用一个行调试器,比如ipdb
,在save方法中设置一个跟踪,并准确地找出发生了什么。