contenttypes.models.DoesNotExist: ContentType matchingquery不存在如何改进
contenttypes.models.DoesNotExist: ContentType matchingquery does not exist how to improve
另一个项目这个评论系统是有效的！但是什么也没有，如何解决这个问题？
完整追溯
> Traceback (most recent call last): File
> "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\core\handlers\exception.py",
> line 41, in inner
> response = get_response(request) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\core\handlers\base.py",
> line 187, in _get_response
> response = self.process_exception_by_middleware(e, request) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\core\handlers\base.py",
> line 185, in _get_response
> response = wrapped_callback(request, *callback_args, **callback_kwargs) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\newstudio\serials\views.py",
> line 78, in post_of_serie
> content_type = ContentType.objects.get(model=c_type) File
> "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\db\models\manager.py",
> line 85, in manager_method
> return getattr(self.get_queryset(), name)(*args, **kwargs) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\db\models\query.py",
> line 380, in get
> self.model._meta.object_name django.contrib.contenttypes.models.DoesNotExist: ContentType matching
> query does not exist.
这是views.py
initial_data = {
"content_type": serie.get_content_type,
"object_id": serie.id
}
if request.method == 'POST':
form = CommentForm(request.POST or None, initial=initial_data)
if form.is_valid():
c_type = form.cleaned_data.get("content_type")
content_type = ContentType.objects.get(model=c_type)
obj_id = form.cleaned_data.get('object_id')
content_data = form.cleaned_data.get("content")
parent_obj = None
try:
parent_id = int(request.POST.get("parent_id"))
except:
parent_id = None
if parent_id:
parent_qs = Comment.objects.filter(id=parent_id)
if parent_qs.exists() and parent_qs.count() == 1 :
parent_obj = parent_qs.first()
new_comment, created = Comment.objects.get_or_create(
user = request.user,
content_type = content_type,
object_id = obj_id,
content = content_data,
parent = parent_obj
)
return HttpResponseRedirect(new_comment.content_object.get_absolute_url())
form = CommentForm(initial=initial_data)
comments = Comment.objects.filter_by_instance(serie)
context = { "serie":serie,
"full_path":full_path,
"title":title,
"poster":poster,
"comments": comments,
"comment_form": form,
}
return render(request, 'series.html', context)
在 html 模板内容类型中显示了我在视图中使用的模型
但它不起作用。但一切都正确显示
第二个img
型号
class Series(models.Model):
id = models.AutoField(primary_key=True)
rus_name = models.CharField(max_length=60)
eng_name = models.CharField(max_length=60)
slug = models.SlugField(unique=False)
serial_of_this_series = models.ForeignKey(Serial, on_delete=models.CASCADE, default=True)
season_of_this_series = models.ForeignKey(Season, on_delete=models.CASCADE, default=True)
number_of_series = models.IntegerField(default=0)
description = models.TextField(max_length=700, blank=True, default=None)
size_of_torent_file = models.CharField(max_length=60, default=None)
link_for_dowloand_serie_in_quality_360p = models.CharField(max_length=60, default=None)
link_for_dowloand_serie_in_quality_720p = models.CharField(max_length=60, default=None)
link_for_dowloand_serie_in_quality_1080p = models.CharField(max_length=60, default=None)
rating = models.FloatField(default=0, blank=True)
is_active = models.BooleanField(default=True)
timestamp_rus = models.DateField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now_add=False, auto_now=True)
timestamp_eng = models.CharField(max_length=60)
time_of_series = models.DecimalField(max_digits=10, decimal_places=2, default=42)
new_or_old = models.BooleanField(default=True)
def save(self, *args, **kwargs):
name_of_serial = self.serial_of_this_series.rus_name_of_seriall
number_of_season = self.season_of_this_series.number_of_season
number_of_series = self.number_of_series
if self.new_or_old:
#notification_for_new_series_task.delay(name_of_serial, number_of_season, number_of_series)
season_module = Season.objects.get(slug=self.season_of_this_series.slug, serial_for_this_season=self.serial_of_this_series)
season_module.number_of_series_released += 1
season_module.save()
self.new_or_old = False
return super(Series, self).save(*args, **kwargs)
def get_absolute_url(self):
return reverse('series:post_of_serie', kwargs=
{'serial_slug': self.serial_of_this_series.slug,
'season_slug': self.season_of_this_series.slug,
'series_slug': self.slug})
def __str__(self):
return "%s | %s" % (self.rus_name, self.number_of_series)
@property
def comments(self):
instance = self
qs = Comment.objects.filter_by_instance(instance)
return qs
@property
def get_content_type(self):
instance = self
content_type = ContentType.objects.get_for_model(instance.__class__)
return content_type
class Meta:
ordering = ["-timestamp_rus"]
verbose_name = 'Series'
verbose_name_plural = 'Series'
我希望 content_type 值是小写的，即 series 而不是 Series。
你的Serie.get_content_type属性returns内容类型实例。您应该使用 model 字段。
initial_data = {
"content_type": serie.get_content_type.model,
"object_id": serie.id,
}
完全不清楚为什么需要在表单中包含 content_type 和 object_id。视图中已有 serie，因此您应该能够从表单中删除这些字段，然后按如下方式更新视图：
if form.is_valid():
content_type = serie.get_content_type
obj_id = serie.id
content_data = form.cleaned_data.get("content")
...
另一个项目这个评论系统是有效的！但是什么也没有，如何解决这个问题？
完整追溯
> Traceback (most recent call last): File
> "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\core\handlers\exception.py",
> line 41, in inner
> response = get_response(request) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\core\handlers\base.py",
> line 187, in _get_response
> response = self.process_exception_by_middleware(e, request) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\core\handlers\base.py",
> line 185, in _get_response
> response = wrapped_callback(request, *callback_args, **callback_kwargs) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\newstudio\serials\views.py",
> line 78, in post_of_serie
> content_type = ContentType.objects.get(model=c_type) File
> "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\db\models\manager.py",
> line 85, in manager_method
> return getattr(self.get_queryset(), name)(*args, **kwargs) File "C:\Users\P.A.N.D.E.M.I.C\Desktop\td11\lib\site-packages\django\db\models\query.py",
> line 380, in get
> self.model._meta.object_name django.contrib.contenttypes.models.DoesNotExist: ContentType matching
> query does not exist.
这是views.py
initial_data = {
"content_type": serie.get_content_type,
"object_id": serie.id
}
if request.method == 'POST':
form = CommentForm(request.POST or None, initial=initial_data)
if form.is_valid():
c_type = form.cleaned_data.get("content_type")
content_type = ContentType.objects.get(model=c_type)
obj_id = form.cleaned_data.get('object_id')
content_data = form.cleaned_data.get("content")
parent_obj = None
try:
parent_id = int(request.POST.get("parent_id"))
except:
parent_id = None
if parent_id:
parent_qs = Comment.objects.filter(id=parent_id)
if parent_qs.exists() and parent_qs.count() == 1 :
parent_obj = parent_qs.first()
new_comment, created = Comment.objects.get_or_create(
user = request.user,
content_type = content_type,
object_id = obj_id,
content = content_data,
parent = parent_obj
)
return HttpResponseRedirect(new_comment.content_object.get_absolute_url())
form = CommentForm(initial=initial_data)
comments = Comment.objects.filter_by_instance(serie)
context = { "serie":serie,
"full_path":full_path,
"title":title,
"poster":poster,
"comments": comments,
"comment_form": form,
}
return render(request, 'series.html', context)
在 html 模板内容类型中显示了我在视图中使用的模型
但它不起作用。但一切都正确显示
第二个img
型号
class Series(models.Model):
id = models.AutoField(primary_key=True)
rus_name = models.CharField(max_length=60)
eng_name = models.CharField(max_length=60)
slug = models.SlugField(unique=False)
serial_of_this_series = models.ForeignKey(Serial, on_delete=models.CASCADE, default=True)
season_of_this_series = models.ForeignKey(Season, on_delete=models.CASCADE, default=True)
number_of_series = models.IntegerField(default=0)
description = models.TextField(max_length=700, blank=True, default=None)
size_of_torent_file = models.CharField(max_length=60, default=None)
link_for_dowloand_serie_in_quality_360p = models.CharField(max_length=60, default=None)
link_for_dowloand_serie_in_quality_720p = models.CharField(max_length=60, default=None)
link_for_dowloand_serie_in_quality_1080p = models.CharField(max_length=60, default=None)
rating = models.FloatField(default=0, blank=True)
is_active = models.BooleanField(default=True)
timestamp_rus = models.DateField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now_add=False, auto_now=True)
timestamp_eng = models.CharField(max_length=60)
time_of_series = models.DecimalField(max_digits=10, decimal_places=2, default=42)
new_or_old = models.BooleanField(default=True)
def save(self, *args, **kwargs):
name_of_serial = self.serial_of_this_series.rus_name_of_seriall
number_of_season = self.season_of_this_series.number_of_season
number_of_series = self.number_of_series
if self.new_or_old:
#notification_for_new_series_task.delay(name_of_serial, number_of_season, number_of_series)
season_module = Season.objects.get(slug=self.season_of_this_series.slug, serial_for_this_season=self.serial_of_this_series)
season_module.number_of_series_released += 1
season_module.save()
self.new_or_old = False
return super(Series, self).save(*args, **kwargs)
def get_absolute_url(self):
return reverse('series:post_of_serie', kwargs=
{'serial_slug': self.serial_of_this_series.slug,
'season_slug': self.season_of_this_series.slug,
'series_slug': self.slug})
def __str__(self):
return "%s | %s" % (self.rus_name, self.number_of_series)
@property
def comments(self):
instance = self
qs = Comment.objects.filter_by_instance(instance)
return qs
@property
def get_content_type(self):
instance = self
content_type = ContentType.objects.get_for_model(instance.__class__)
return content_type
class Meta:
ordering = ["-timestamp_rus"]
verbose_name = 'Series'
verbose_name_plural = 'Series'
我希望 content_type 值是小写的，即 series 而不是 Series。
你的Serie.get_content_type属性returns内容类型实例。您应该使用 model 字段。
initial_data = {
"content_type": serie.get_content_type.model,
"object_id": serie.id,
}
完全不清楚为什么需要在表单中包含 content_type 和 object_id。视图中已有 serie，因此您应该能够从表单中删除这些字段，然后按如下方式更新视图：
if form.is_valid():
content_type = serie.get_content_type
obj_id = serie.id
content_data = form.cleaned_data.get("content")
...