我有一个基本的博客开始,它列出了post_list.html中从header.html扩展的数据库中的博客文章。我也试图在标题中得到一个变量作为口号,但这不起作用。
header.html - 这是在没有" propaganda.slogan"的情况下呈现的。从管理页面输入并具有内容:
<!DOCTYPE html>
<html lang="en">
<head>
<title>hey!</title>
<meta charset="utf-8" />
{% load staticfiles %}
<link rel="stylesheet" href="{% static 'blog/css/bulma.css' %}" type="text/css"/>
</head>
<body>
<section class="hero is-success is-bold">
<div class="hero-body">
<div class="container">
{% block slogan %}
<ul>
{% for propaganda in propagandas %}
<li>{{ propaganda.slogan }}</li>
{% endfor %}
</ul>
{% endblock %}
<h1 class="title">
My weblog
</h1>
</div>
</div>
</section>
{% block content %}
{% endblock %}
</body>
</html>
post_list.html扩展了header.html并显示来自models.py的帖子列表:
{% extends "blog/header.html" %}
{% block content %}
{% for post in posts %}
<section class="section">
<div class="container">
<h1 class="title"><a href="#">{{ post.title }}</a></h1>
<p>{{ post.summary|linebreaksbr }}</p>
<p>published: {{ post.last_edited }}</p>
</div>
</section>
{% endfor %}
{% endblock %}
models.py看起来像这样:
from django.db import models
from django.utils import timezone
# Create your models here.
class Propaganda(models.Model):
slogan = models.CharField(max_length=140, blank=True, null=True)
def __str__(self):
return self.slogan
class Post(models.Model):
title = models.CharField(max_length=140, blank=False, null=False)
content = models.TextField()
summary = models.CharField(max_length=500)
created_date = models.DateTimeField()
last_edited = models.DateTimeField()
def __str__(self):
return self.title
最后,views.py是:
from django.shortcuts import render
from .models import Post, Propaganda
# Create your views here.
def post_list(request):
posts = Post.objects.all()
return render(request, 'blog/post_list.html', {'posts': posts})
def header(request):
propagandas = Propaganda.objects.all()
return render(request, 'blog/header.html', {'propagandas': propagandas})
那么为什么我可以在post_list.html中获得帖子标题,摘要和日期的列表,但我无法在标题中获得宣传标语列表?
对我来说,它几乎就像是相同的代码?我从开发服务器或浏览器中得不到任何错误:(
答案 0 :(得分:2)
您需要将传播列表传递给当前模板的上下文;包含模板与关联的(如果首先有任何意义)视图中包含的模板几乎没有任何关系:
def post_list(request):
posts = Post.objects.all()
propagandas = Propaganda.objects.all()
return render(request, 'blog/post_list.html', {'posts': posts, 'propagandas': propagandas})