Can someone help me??

[Hella Nick]

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??

[oba stephen]

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. 

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[Sencer Hamarat]

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

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[Hella Nick]

Dear  Sencer：

    

  <a href="/blog/index/">index</a>

 

•       There is no problem with writing this wayI don't understand why.

Thank You

Sencer Hamarat <sencer...@gmail.com> 于2020年7月1日周三 下午5:13写道：

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[Hella Nick]

Dear  Mir  oba stephen:

     I deleted  "volume" function,But The result is the same.

Hella Nick <perso...@gmail.com> 于2020年7月2日周四 上午10:51写道：

[oba stephen]

Can you share your models.py?

Like Sencer said you have to check data types where the "+" operator is used.

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[Hella Nick]

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 <obast...@gmail.com> 于2020年7月2日周四 下午2:28写道：

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[Mohammed Alnajdi]

The error seems to be somewhere in the Urls

I think it might be issue with

"{% url 'blog:index/' %}"

try to remove the slash

"{% url 'blog:index' %}"

you might need to do the same with other urls

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[oba stephen]

I don't see anything wrong with the Models.py file, I think you should try removing those slash "/" just as Mohammed said.

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[Hella Nick]

Thank you Oba Stephen and Mohammed Alnajdi.

I think this is a real BUG.

I'm ready to rebuild the project.

Thank you again.

oba stephen <obast...@gmail.com> 于2020年7月2日周四 下午2:48写道：

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