如果有人可以帮助我弄清楚我的编码问题，我将非常非常感激。当我在管理界面中时，不会生成任何错误。但是，当我在管理界面下单击“保存”供应商对象时，我在自定义save_model（...）函数下指定的任何内容似乎都没有执行。我把我的代码压缩成了一些快照。 我做错了什么？
侧注：这可能听起来很奇怪，但我也试图在保存过程中删除该对象（它应该覆盖到另一个“提供者”对象，然后再这样做）。
===================
#models.py
...
class Provider(models.Model):
title = models.CharField(max_length=150)
purpose = models.TextField()
summary = models.TextField()
email = models.EmailField()
access_code = models.CharField(max_length=30, default=random_password)
verified = models.BooleanField(default=False) #On/Off switch to display on database
flagged = models.BooleanField(default=False)
revised = models.BooleanField(verbose_name = "New Update", default=False)
# Will be True, if a revision has occured
# On/Off switch state whether this is a revision of an existing Provider
# This will be useful for creating a manager that lists updated providers
# Note: Must delete Revised_Provider object after verification is complete
# and UPDATE has occurred on save()
#M2M Relations
serviced_location = models.ManyToManyField(Location, through='ServicedLocations')
services_offered = models.ManyToManyField(ServiceType, through='OfferedServices')
insurances_accepted = models.ManyToManyField(InsuranceProvider, through='AcceptedInsurances')
#contacts = models.ManyToManyField(Contact, blank=True)
def __unicode__(self):
return self.title
#Used for allow the provider to make change to their profile, and wait
#for verification before it will show up on regular search results
#Serves as a map for referencing a verified provider to a recent update (revision)
class Revision(models.Model): #Revised Providers (eg: Updated)
provider = models.ForeignKey(Provider, null=True)
date_revised = models.DateTimeField(auto_now=True, auto_now_add=True)
def __unicode__(self):
return u'%s' % self.provider
class ServicedLocations(models.Model):
location = models.ForeignKey(Location)
provider = models.ForeignKey(Provider) #Pre-Verified or Verified Settings
revision = models.ForeignKey(Revision, null=True, on_delete=models.SET_NULL)
...etc...
===================
#admin.py
from django.contrib import admin
from django.forms.models import ModelForm
from django import forms
from health.providers.models import *
class ProviderAdminForm(forms.ModelForm):
def clean(self):
cleaned_data = self.cleaned_data
flagged = cleaned_data.get("flagged")
verified = cleaned_data.get("verified")
if flagged == True and verified == True:
raise forms.ValidationError("You cannot verify a 'flagged' provider. If you meant to verify this provider, be sure to uncheck 'flagged'")
# Just in case someone accidently verified a flagged provider
return cleaned_data
class ProviderAdmin(admin.ModelAdmin):
list_per_page = 100
list_display = ('date_added', 'title', 'state', 'verified', 'flagged')
list_display_links = ('title',)
list_filter = ('verified', 'flagged', 'revised')
search_fields = ['title',]
filter_horizontal = ('services_offered',)
form = ProviderAdminForm
def save_model(self, request, obj, form, change):
ProviderID = obj.id
try: #see if a revision exists in the table
Compare = Revision.objects.get(id=ProviderID)
OldProviderID = Compare.provider.id
OldProvider = Provider.objects.get(id=OldProviderID)
RevisedProvider = Provider.objects.get(id=ProviderID)
RevisedProviderID = RevisedProvider.id
if change: #Check to see if we changed anything important
verified = form.cleaned_data['verified']
#Means we would have had to manually verified it
if verified == True:
#This means that we have approved to update the old Provider
#After copying the data over, we destroy what we are saving
obj.revised = False
obj.save()
#If we verfied it, revised = False
OldProvider = RevisedProvider #Update Existing Provider Table
OldProvider.save()
NewLocations = ServicedLocations.objects.get(provider=RevisedProviderID)
OldLocations = ServicedLocations.objects.get(provider=OldProviderID)
OldLocations = NewLocations
OldLocations.save()
NewLocations.delete()
Compare.delete() #Delete from database
RevisedProvider.delete() #Delete Final Copy of Table
return HttpResponseRedirect("admin/providers/provider/%s/" % OldProviderID) #Redirect them to updated provider
except Revision.DoesNotExist:
print "This provider does not have any unverified revisions"
return super(ProviderAdmin, self).save_model(request, obj, form, change)
admin.site.register(Provider, ProviderAdmin)
答案 0 :(得分：0)
代码在哪里丢失？你是说它根本不会执行 ？甚至不在第一行的日志语句？或者您是说在DB中没有进行预期的更改？
我尝试用各种理论重新创建你的情况但不能重现问题。你能更详细地描述问题是什么吗？尝试做一些pdb.set_trace（），挖掘并给我们一些更多细节：）
由于您没有提供例外，您需要提供有关错误的更多信息。
PS：我正在阅读您的代码，但很难阅读！类看起来像看起来像变量的实例......只是提出它违反了Python的编码约定，你可以看到语法高亮显示器认为你的CapitalizedObjects是类。看起来您正在保存主对象，更改其引用的名称几次，然后再次保存，然后删除它！这里发生了非常令人困惑的事情...
这就是我所看到的......
RevisedProvider与obj的实例相同
RevisedProvider = Provider.objects.get(id=obj.id)
然后，将RevisedProvider分配给OldProvider，并在其上调用save()，这与obj（2次保存）的实例相同。
最后，删除RevisedProvider.delete()，这是您正在编辑的对象。
当我尝试重现该代码并删除我正在编辑的实例时，django会抛出ValidationError。
Sooo，我们需要更多信息来提供帮助。其他奇怪的地方在哪里？
答案 1 :(得分：0)
感谢您提供的建议，感谢您在查看我杂乱无章的编码方面的辛勤工作。
最初我的目标是在出现在公共搜索结果中之前，必须先验证（在管理界面中）提供商列表。我遇到的问题是，如果提供商更新了他们自己的联系信息，我们会自动设置verified = False（如果发布了不适当的内容）。因此，必须重新验证更新其信息的提供者，然后才能在数据库中出现。这很糟糕，因为它们会立即从搜索结果中删除。这就是为什么我引入了对我的数据库的修订，以便提供商可以随时编辑和更新他们的信息。现在，在我们手动验证提供商信息的更新版本之前，新更改才会出现。
我想保持联系人的ID相同，以便记录历史记录保持不变。这太复杂了。因此，如果已验证的被选为True，那么最终只能在保存（）时删除旧版本。
def save_model(self, request, obj, form, change):
providerid = obj.id
if Revision.objects.filter(revised_provider=providerid).exists() and obj.revised == True:
compare = Revision.objects.get(revised_provider=providerid)
oldproviderid = compare.provider.id
oldprovider = Provider.objects.get(id=oldproviderid)
revisedproviderid = compare.revised_provider.id
revisedprovider = Provider.objects.get(id=revisedproviderid)
if change: #Check to see if we changed anything important
verified = form.cleaned_data['verified']
#Means we would have had to manually verified it
if verified == True:
#This means that we have approved to update the old Provider
#After copying the data over, we destroy what we are saving
obj.revised = False
obj.save()
#If we verfied it, revised = False
compare.delete() #Delete Revision
oldprovider.delete() #Delete Old Provider
return super(ProviderAdmin, self).save_model(request, obj, form, change)