Question

我正在使用Django创建一个博客网站。我想在一个帖子中获得评论的数量（我有一个可以调用的完整的帖子字典）作为int并在以下def中使用它：

def top_three(request)
    first = -1
    second = -1
    third = -1
    com = Comment.objects.filter(approved_comment)
    posts = Post.objects.filter(comments__in=com)
    for post in posts:
        if len(posts) >= 3:
            postvar = len(com)
            if postvar > first:
                first = postvar
                one = Post.objects.filter(published_date__lte=timezone.now()).order_by('published_date')
            elif postvar > second:
                second = postvar
                two = Post.objects.filter(published_date__lte=timezone.now()).order_by('published_date')
            elif postvar > third:
                third = postvar
                three = Post.objects.filter(published_date__lte=timezone.now()).order_by('published_date')
        else:
            return render(request, 'blog/home.html')
    return render(request, 'blog/home.html', {
        'one': one,
        'two': two,
        'three': three,
    })

假设我已经导入了所有需要导入的内容

评论模型与Post模型直接相关，没有相关帖子的人不能发表评论。我的模特是：

class Post(models.Model):
    author = models.ForeignKey('auth.User', on_delete=models.CASCADE)
    url = models.TextField()
    title = models.CharField(max_length=200)
    discription = models.TextField()
    created_date = models.DateTimeField(
            default=timezone.now)
    published_date = models.DateTimeField(
            blank=True, null=True)

    def publish(self):
        self.published_date = timezone.now()
        self.save()

    def __str__(self):
        return self.title

    def approved_comments(self):
        return self.comments.filter(approved_comment=True)

和

class Comment(models.Model):
    post = models.ForeignKey('blog.Post', related_name='comments')
    author = models.CharField(max_length=200)
    text = models.TextField()
    created_date = models.DateTimeField(default=timezone.now)
    approved_comment = models.BooleanField(default=False)

    def approve(self):
        self.approved_comment = True
        self.save()

    def __str__(self):
        return self.text

你如何建议我在博客/ home.html中拨打一，二和三？

Answer 1

如果您想要批准评论的每个帖子，请执行

public function update(Request $request, int $employee_id) {
        $this->validate ( $request, [
                'first_name' => "required|max:220|regex:/[a-z]/",
                'middle_name' => "max:120",
                'last_name' => "required|max:220|regex:/[a-z]/",
                'email' => "required|unique:employees,email,".$employee_id.',employee_id|regex:/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}/',
                'home_phone' => "unique:employees,home_phone,$employee_id,employee_id|numeric",
                'mobile' => "required|unique:employees,mobile,$employee_id,employee_id|numeric",
                'job_id' => 'required',
                'department_id' => 'required',
                'group_id' => 'required',
                'node' => 'required',
                'branch' => 'required',
                'username' => "required|unique:employees,username,".$employee_id.',employee_id|regex:/[A-Za-z0-9][.][A-Za-z0-9]/',
                'exchange_username' => "required|unique:employees,exchange_username,".$employee_id.',employee_id|regex:/[A-Za-z0-9][.][A-Za-z0-9]/',
                'extension' => "required|unique:employees,mobile,$employee_id,employee_id|numeric|regex:/[0-9]{4}/",    
        ] );
        Employee::where ('employee_id', $employee_id )->update ( $request->only ( [ 
                'first_name',
                'middle_name',
                'last_name',
                'email',
                'address',
                'home_phone',
                'mobile',
                'job_id',
                'department_id',
                'group_id',
                'branch',
                'node', 
                'name',
                'username',
                'type',
                'exchange_username',
                'toggle_ivr_access',
                'extension',
                'attributed_team',
                'cable_team_id',
                'disable',
        ] ) );
        Session::flash ( 'message', 'The Employee is Successfully Updated.' );
        return redirect ()->route ( 'employees.index' );
    }

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