如何在模板中呈现用户名？

Question

我创建了一个用户可以注册和登录的应用程序和 post 一个视频，如何在 post 中呈现用户名。我想在每个 post 用户中传递一个用户名。喜欢社交网络

这是我的模型

from django.db.models.fields import CharField
from django.contrib.auth.models import User
from django.db import models

Create your models here.

class Post(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    file = models.FileField(null=False, blank=False)
    title = CharField(max_length=25, blank=False)
    date_added = models.DateTimeField(auto_now_add=True) 

    def __str__(self):
        return self.title

这是我的模板首页模板：

    <div class="container">
    {% for post in posting %}
    <div class="row justify-content-center">
        <div class="col">
            <div class="card">
                    <video
                    id="my-video"
                    class="video-js" 
                    controls
                    width="640"
                    height="264"
                    poster="MY_VIDEO_POSTER.jpg"
                    data-setup="{}"
                    type="video/mp4"
                    >
                    <source src="{{post.file.url}}">
                </video>
            <div class="card-body">
                <small>{{post.date_added}}</small>
                <br>
               <small>{{post.title}}</small>
            </div>
            </div>
        </div>
    </div>
    {% endfor %}
</div>

这是我的观点：

from django.shortcuts import render, redirect
from django.contrib.auth.models import User, auth
from django.contrib import messages
from .models import Post

def dashboard(request):
    posting = Post.objects.all()
    return render(request, 'dashboard.html', {'posting': posting})

这是我的登录视图：

def login(request):
if request.method == 'POST':
    username = request.POST['username']
    password = request.POST['password']

    user = auth.authenticate(username=username, password=password)

    if user is not None:
        auth.login(request, user)
        return redirect('home')
    else:
        messages.info(request, 'Invalid Credential') 
        return redirect('login')
else:        
    return render(request, 'login.html')

这是我的注册意见：

def register(request):

    if request.method == 'POST':
        username = request.POST['username']
        email = request.POST['email']
        password = request.POST['password']
        password2 = request.POST['password2']

        if password == password2:
            if User.objects.filter(email=email).exists():
                messages.info(request, 'Email Already taking')
                return redirect('register')
            elif User.objects.filter(username=username).exists():
            messages.info(request, 'username is taken')
                return redirect('register')
           else:
                user = User.objects.create_user(username=username, email=email, password=password)
                user.save();
                return redirect('login')
        else:
            messages.info(request, 'Password Not Match')
            return redirect('register')   
        return redirect ('/')     
    else:
        return render(request, 'signup.html')

我想在 post

中传递一个用户名

Answer 1

您可以使用 post.user.username 访问用户的用户名，例如：

<div class="card-body">
    <small>{{post.date_added}} <strong>by {{ post.user.username }}</strong></small>
    <br>
   <small>{{post.title}}</small>
</div>

在视图中，您可以通过在单个查询中使用 Post 选择相关用户来提高性能：

def dashboard(request):
    posting = Post.objects<strong>.select_related('user')</strong>
    return render(request, 'dashboard.html', {'posting': posting})

Note: It is normally better to make use of the settings.AUTH_USER_MODEL [Django-doc] to refer to the user model, than to use the User model [Django-doc] directly. For more information you can see the referencing the User model section of the documentation.

如何在模板中呈现用户名？

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