【发布时间】：2020-04-27 17:24:59
【问题描述】：
我构建了一个带有评论部分的小型 Django 博客应用程序。用户必须先登录才能发表帖子或发表评论。我想在我的模板中的博客文章和 cmets 中返回我的 CustomUser 的全名。博客帖子后，全名按预期返回，但评论的作者返回我的 CustomUser 模型的 username field 的值，即 None强>。请帮忙。这是我的代码。
CustomUser 模型
from django.contrib.auth.models import AbstractUser
from django.db import models
from . manager import CustomUserManager
class CustomUser(AbstractUser):
email = models.EmailField(verbose_name = 'email address', unique=True)
username = None
first_name = models.CharField(verbose_name = 'first_name', blank = True, max_length = 30)
last_name = models.CharField(verbose_name = 'last_name', blank = True, max_length = 30)
bio = models.CharField(max_length = 150, null = True, blank = True)
avatar = models.ImageField(upload_to = 'avatars', null = True, blank = True)
date_joined = models.DateTimeField(auto_now_add = True)
last_login = models.DateTimeField(auto_now_add = True)
def __str__(self):
return self.first_name + " " + self.last_name
objects = CustomUserManager()
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = []
博客模式
from django.conf import settings
from django.db import models
from django.urls import reverse
from django.contrib.auth import get_user_model
class Post(models.Model):
title = models.CharField(max_length=200)
slug = models.SlugField(max_length = 200, unique = True)
body = models.TextField()
created_on = models.DateTimeField(auto_now_add=True)
author = models.ForeignKey(
settings.AUTH_USER_MODEL,
on_delete=models.CASCADE,
related_name = 'blog_posts',
)
post_picture = models.ImageField(upload_to = 'post_picture', null = True, blank = True)
approved_comment = models.BooleanField(default=True)
def approve(self):
self.approved_comment = True
self.save()
class Meta:
ordering = ['created_on']
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('post_detail', args=[str(self.id)])
def approved_comments(self):
return self.comments.filter(approved_comment = True)
class Comment(models.Model):
post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='comments')
author = models.ForeignKey(
settings.AUTH_USER_MODEL,
on_delete=models.CASCADE,
related_name = 'blog_comments',
null = True,
)
text = models.CharField(max_length = 300,)
created_date = models.DateTimeField(auto_now_add = True)
approved_comment = models.BooleanField(default=True)
def approve(self):
self.approved_comment = True
self.save()
def __str__(self):
return self.text
查看
from django.views.generic import ListView, DetailView, CreateView
from django.views.generic.edit import UpdateView, DeleteView, FormView
from django.contrib.auth.mixins import LoginRequiredMixin
from django.urls import reverse_lazy
from . models import Post, Comment
from .forms import PostForm, CommentForm
from django.shortcuts import get_object_or_404, render, redirect
from django.contrib.auth.decorators import login_required
class PostCreateView(LoginRequiredMixin, CreateView):
model = Post
template_name = 'post_new.html'
fields = ['title', 'body',]
login_url = 'login'
def form_valid(self, form):
form.instance.author = self.request.user
return super().form_valid(form)
class PostListView(ListView):
model = Post
template_name = 'post_list.html'
def get_queryset(self):
return Post.objects.order_by('created_on').reverse()
class PostDetailView(DetailView):
model = Post
template_name = 'post_detail.html'
class PostUpdateView(LoginRequiredMixin, UpdateView):
model = Post
fields = ['title', 'body', ]
template_name = 'post_edit.html'
login_url = 'login'
class PostDeleteView(LoginRequiredMixin, DeleteView):
model = Post
template_name = 'post_delete.html'
success_url = reverse_lazy('post_list')
login_url = 'login'
def add_comment_to_post(request, pk):
post = get_object_or_404(Post, pk=pk)
if request.method == "POST":
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail', pk=post.pk)
else:
form = CommentForm()
return render(request, 'add_comment_to_post.html', {'form': form})
@login_required
def comment_approve(request, pk):
comment = get_object_or_404(Comment, pk=pk)
comment.approve()
return redirect('post_detail', pk=comment.post.pk)
@login_required
def comment_remove(request, pk):
comment = get_object_or_404(Comment, pk=pk)
comment.delete()
return redirect('post_detail', pk=comment.post.pk)
模板
{% extends 'blog_template.html' %}
{% load static %}
{% load widget_tweaks %}
{% block blog_center %}
<div class="post-entry">
<h2>{{ object.title }}</h2>
<p>by {{ object.author }} | {{ object.date }}</p>
<p>{{ object.body }}</p>
</div>
<p>Back to <a href="{% url 'post_list' %}">All Posts</a>.</p>
{% if user.is_authenticated %}
<a class="" href="{% url 'add_comment_to_post' pk=post.pk %}">Add comment</a>
{% else %}
<a href="{% url 'login' %}">Log In</a>
{% endif %}
{% for comment in post.comments.all %}
{% if user.is_authenticated or comment.approved_comment %}
<div class="">
<div class="">
{{ comment.created_date }}
{% if not comment.approved_comment %}
<a class="btn btn-default" href="{% url 'comment_remove' pk=comment.pk %}"><span class="glyphicon glyphicon-remove"></span></a>
<a class="btn btn-default" href="{% url 'comment_approve' pk=comment.pk %}"><span class="glyphicon glyphicon-ok"></span></a>
{% endif %}
</div>
<p>{{ comment.author }}</p>
<p>{{ comment.text|linebreaks }}</p>
</div>
{% endif %}
{% empty %}
<p>No comments here yet :</p>
{% endfor %}
{% endblock blog_center %}
【问题讨论】：
标签： comments blogs django-custom-user