【发布时间】：2021-08-31 20:08:29
【问题描述】：
我是django新手，遇到这样的问题，写的是id而不是类别名，请问如何解决？附上代码，代码不完整（仅使用过的部分）。我不知道该怎么做了，很可能问题出在views.py中
model.py
class Category(models.Model):
category_name = models.CharField(max_length=64, unique=True)
subscribers = models.ManyToManyField(User, blank=True, null=True)
class Meta:
verbose_name = 'Категория'
verbose_name_plural = 'Категории'
def __str__(self):
return self.category_name
class Post(models.Model):
PostAuthor = models.ForeignKey(Author, on_delete=models.CASCADE)
PostNews = 'PN'
PostArticle = 'PA'
# «статья» или «новость»
POSITIONS = [
(PostArticle, 'Статья'),
(PostNews, 'Новость'),
]
title = models.CharField(max_length=50)
positions = models.CharField(max_length=2, choices=POSITIONS, default=PostArticle)
data = models.DateTimeField(auto_now_add=True)
postCategory = models.ManyToManyField(Category, through='PostCategory')
previewName = models.CharField(max_length=128)
text = models.TextField()
rating = models.SmallIntegerField(default=0)
def like(self):
self.rating +=1
self.save()
def dislike(self):
self.rating -=1
self.save()
def preview(self):
return self.text[0:124] + '...'
def __str__(self):
return self.title
class Meta:
verbose_name = 'Пост'
verbose_name_plural = 'Посты'
def get_absolute_url(self):
return f'/news/{self.pk}'
class PostCategory(models.Model):
pcPost = models.ForeignKey(Post, on_delete=models.CASCADE)
pcCategory = models.ForeignKey(Category, on_delete=models.CASCADE)
class Meta:
verbose_name = 'Пост категория'
verbose_name_plural = 'Пост категории'
def __str__(self):
return f'{str(self.pcPost)}, имеет категорию {str(self.pcCategory)}'
views.py我认为错误就在这里
class new(LoginRequiredMixin, PermissionRequiredMixin, DetailView):
model = Post
template_name = 'new_home.html'
context_object_name = 'new'
permission_required = 'news.view_post'
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['com_post'] = Comment.objects.filter(commentPost=self.kwargs['pk']).values("commentText")
context['pc_post'] = PostCategory.objects.filter(pcPost=self.kwargs['pk']).values('pcCategory')
return context
new_home.html垃圾代码，但我只是在学习
<!DOCTYPE html>
<html lang="en">
<head>{%extends 'flatpages/default.html'%} {% load custom_filters %}
<meta charset="UTF-8">
<title>{%block title%} {{new.title|censor_filter}} {%endblock title%}</title>
</head>
<body>
{%block content%}
<h2>{{new.title|censor_filter}}</h2>
<hr>
<h4>Пост опубликован: {{new.data}}</h4>
<hr>
<h5>{{new.text|censor_filter}}</h5>
<hr>
<h6>Пост опубликовал: {{new.PostAuthor}}</h6>
<hr>
{%for pc in pc_post%}
<button><span style="color: #000000;"><a style="color: #000000;" href="{%url 'category_detail' pc.pcCategory %}">Категория: {{pc.pcCategory}}</a></span></button>
{%endfor%}
{%for comment in com_post%}
<p>Комментарии: {{comment.commentText}}</p>
{%endfor%}
{%endblock content%}
</body>
</html>
应用“新闻”中的 urls.py
from django.urls import path
from .views import *
path('category/<int:pk>/', CategoryDetailView.as_view(), name='category_detail'),
path('category/<int:pk>/subscribe/', subscribe, name='subscribe'),
path('category/<int:pk>/unsubscribe/', unsubscribe, name='unsubscribe'),
path('category/sub/confirm/', SubsConfirm.as_view(), name='sub_confirm'),
path('category/sub/unconfirm/', SubsUnConfirm.as_view(), name='sub_unconfirm'),
path('categories/', CatigoriesView.as_view(), name = 'categories_list'),
【问题讨论】：
标签： html python-3.x django django-views