>
> class Article(models.Model):
> # time = datetime.datetime.now()
> IMG_LINK = '/static/images/summary.jpg'
> id = models.AutoField(primary_key=True,verbose_name='自增主键')
> title = models.CharField(verbose_name='文章标题',max_length=100)
> intro = models.CharField(max_length=300,verbose_name='文章摘要')
> content = MDTextField(verbose_name='文章正文')
> img_link = models.CharField('图片地址', default=IMG_LINK, max_length=255)
> addtime = models.DateTimeField(verbose_name='发布时间',auto_now =True)
> updatetime = models.DateTimeField(verbose_name='修改时间', auto_now=True)
> number = models.IntegerField(verbose_name='阅读量',default=0)
> loves = models.IntegerField(verbose_name='点赞',default=0)
> keywords = models.CharField(max_length=120,verbose_name='文章关键词',)
> sort =
> models.ForeignKey('Sort',to_field='id',on_delete=models.CASCADE,verbose_name='分类外键')
> member =
> models.OneToOneField(User,on_delete=models.CASCADE,related_name='profile',verbose_name='用户一对多外键')
>
> class Mate:
> verbose_name = '文章'
> verbose_name_plural = verbose_name
> ordering = ['-updatetime']
>
> def __str__(self):
> return self.title[:20]
>
> # def get_absolute_url(self):
> # return reversed('blog:article',kwargs={'sulg':self.id})
> # return reverse('blog:detail', kwargs={'pk':self.id})
>
> def body_to_markdown(self):
> return markdown.markdown(self.content.replace("\r\n", '
> \n'),extensions=[
> 'markdown.extensions.extra',
> 'markdown.extensions.codehilite',
> 'markdown.extensions.toc',
> ],safe_mode=True,enable_attributes = False)
>
> def update_view(self):
> self.number += 1
> self.save(update_fields=['number'])
>
> def get_pre(self):
> return Article.objects.filter(id__lt=self.id).order_by('-id').first()
>
> def get_next(self):
> return Article.objects.filter(id__gt=self.id).order_by('id').first()
>
>
oba stephen <obasteph...@gmail.com> 于2020年7月2日周四 下午2:28写道：
> Can you share your models.py?
>
> Like Sencer said you have to check data types where the "+" operator is
> used.
>
> On Thu, Jul 2, 2020 at 3:55 AM Hella Nick <personh...@gmail.com> wrote:
>
>> Dear Mir oba stephen:
>>
>> I deleted "volume" function,But The result is the same.
>>
>> Hella Nick <personh...@gmail.com> 于2020年7月2日周四 上午10:51写道：
>>
>>> Dear Sencer：
>>>
>>>
>>>> <a href="/blog/index/">index</a>
>>>
>>>
>>>
>>>
>>> -
>>>
>>> There is no problem with writing this wayI don't understand
>>> why.
>>>
>>>
>>> Thank You
>>>
>>> Sencer Hamarat <sencerhama...@gmail.com> 于2020年7月1日周三 下午5:13写道：
>>>
>>>> File "D:\pythonwork\blog\personBlog\blog\views\index.py", line 25, in
>>>> get
>>>> return render(request,'index.html',locals())
>>>>
>>>> According to this line in that error seems to have occurred while
>>>> rendering.
>>>> There is at least one "+" operation in "index.html" or "local()" method
>>>> call.
>>>> You have to check data types where the "+" operator used.
>>>> And also according to the error itself, the one of that value is not a
>>>> string.
>>>> I think the "ModelBase" model has no '__str__'.
>>>>
>>>> Saygılarımla,
>>>> Sencer HAMARAT
>>>>
>>>>
>>>>
>>>> On Wed, Jul 1, 2020 at 12:04 PM oba stephen <obasteph...@gmail.com>
>>>> wrote:
>>>>
>>>>> The Error is straight forward, you are using an operand "+" for two
>>>>> two data types that it can't be used on. This might be from your "volume"
>>>>> function.
>>>>>
>>>>> On Wed, Jul 1, 2020 at 9:30 AM Hella Nick <personh...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Can someone help me??
>>>>>>
>>>>>>
>>>>>> My project catalogue:
>>>>>>
>>>>>>
>>>>>> My setttings:
>>>>>>
>>>>>> TEMPLATES = [
>>>>>> {
>>>>>> 'BACKEND': 'django.template.backends.django.DjangoTemplates',
>>>>>> 'DIRS': [os.path.join(BASE_DIR, 'blog/templates/')]
>>>>>> ,
>>>>>> 'APP_DIRS': True,
>>>>>> 'OPTIONS': {
>>>>>> 'context_processors': [
>>>>>> 'django.template.context_processors.debug',
>>>>>> 'django.template.context_processors.request',
>>>>>> 'django.contrib.auth.context_processors.auth',
>>>>>> 'django.contrib.messages.context_processors.messages',
>>>>>> ],
>>>>>> },
>>>>>> },
>>>>>> ]
>>>>>>
>>>>>>
>>>>>> My views:
>>>>>>
>>>>>> from django.shortcuts import render,HttpResponse
>>>>>> from django.views.generic import View
>>>>>> from blog.tool.IPs import volume
>>>>>> from blog.models import Article
>>>>>>
>>>>>> class index(View):
>>>>>> def get(self,request):
>>>>>> volume(request)
>>>>>>
>>>>>> return render(request,'index.html')
>>>>>>
>>>>>>
>>>>>> Error:
>>>>>>
>>>>>>
>>>>>> Internal Server Error: /blog/index/
>>>>>> Traceback (most recent call last):
>>>>>> File
>>>>>> "D:\Python3\lib\site-packages\django\core\handlers\exception.py", line
>>>>>> 34,
>>>>>> in inner
>>>>>> response = get_response(request)
>>>>>> File "D:\Python3\lib\site-packages\django\core\handlers\base.py",
>>>>>> line 126, in _get_response
>>>>>> response = self.process_exception_by_middleware(e, request)
>>>>>> File "D:\Python3\lib\site-packages\django\core\handlers\base.py",
>>>>>> line 124, in _get_response
>>>>>> response = wrapped_callback(request, *callback_args,
>>>>>> **callback_kwargs)
>>>>>> File "D:\Python3\lib\site-packages\django\views\generic\base.py",
>>>>>> line 68, in view
>>>>>> return self.dispatch(request, *args, **kwargs)
>>>>>> File "D:\Python3\lib\site-packages\django\views\generic\base.py",
>>>>>> line 88, in dispatch
>>>>>> return handler(request, *args, **kwargs)
>>>>>> File "D:\pythonwork\blog\personBlog\blog\views\index.py", line 25,
>>>>>> in get
>>>>>> return render(request,'index.html',locals())
>>>>>> File "D:\Python3\lib\site-packages\django\shortcuts.py", line 36,
>>>>>> in render
>>>>>> content = loader.render_to_string(template_name, context,
>>>>>> request, using=using)
>>>>>> File "D:\Python3\lib\site-packages\django\template\loader.py", line
>>>>>> 62, in render_to_string
>>>>>> return template.render(context, request)
>>>>>> File
>>>>>> "D:\Python3\lib\site-packages\django\template\backends\django.py", line
>>>>>> 61,
>>>>>> in render
>>>>>> return self.template.render(context)
>>>>>> File "D:\Python3\lib\site-packages\django\template\base.py", line
>>>>>> 171, in render
>>>>>> return self._render(context)
>>>>>> File "D:\Python3\lib\site-packages\django\template\base.py", line
>>>>>> 163, in _render
>>>>>> return self.nodelist.render(context)
>>>>>> File "D:\Python3\lib\site-packages\django\template\base.py", line
>>>>>> 937, in render
>>>>>> bit = node.render_annotated(context)
>>>>>> File "D:\Python3\lib\site-packages\django\template\base.py", line
>>>>>> 904, in render_annotated
>>>>>> return self.render(context)
>>>>>> File "D:\Python3\lib\site-packages\django\template\defaulttags.py",
>>>>>> line 442, in render
>>>>>> url = reverse(view_name, args=args, kwargs=kwargs,
>>>>>> current_app=current_app)
>>>>>> File "D:\Python3\lib\site-packages\django\urls\base.py", line 58,
>>>>>> in reverse
>>>>>> app_list = resolver.app_dict[ns]
>>>>>> File "D:\Python3\lib\site-packages\django\urls\resolvers.py", line
>>>>>> 477, in app_dict
>>>>>> self._populate()
>>>>>> File "D:\Python3\lib\site-packages\django\urls\resolvers.py", line
>>>>>> 430, in _populate
>>>>>> url_pattern._populate()
>>>>>> File "D:\Python3\lib\site-packages\django\urls\resolvers.py", line
>>>>>> 418, in _populate
>>>>>> self._callback_strs.add(url_pattern.lookup_str)
>>>>>> File "D:\Python3\lib\site-packages\django\utils\functional.py",
>>>>>> line 37, in __get__
>>>>>> res = instance.__dict__[self.name] = self.func(instance)
>>>>>> File "D:\Python3\lib\site-packages\django\urls\resolvers.py", line
>>>>>> 360, in lookup_str
>>>>>> return callback.__module__ + "." + callback.__qualname__
>>>>>> TypeError: unsupported operand type(s) for +: 'ModelBase' and 'str'
>>>>>>
>>>>>>
>>>>>> -
>>>>>>
>>>>>> Can someone help me??
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
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>>>>>> .
>>>>>>
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