我正在从事在线学校项目，我只是将学科与课程联系在一起，因此，当您单击课程时，您会看到它的学科页面，并且在学科页面中有一些课程（课程使用ID而不是ug头），我的问题是在HTML页面中链接课程URL时
所以我的问题是如何将课程链接到HTML页面中的材料（主题）？
我的代码：
HTML页面：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Name</title>
<link rel="stylesheet" href="/static/css/style.css">
</head>
<body>
<div>
<nav>
<div class="logo"><img src="/static/images/Logo.png" width=50px></div>
<ul class="navul">
<li class="navli"><a class="nava" href="404.html">حول الموقع</a></li>
<li class="navli"><a class="nava" href="404.html">المكتبة</a></li>
<li class="navli"><a class="nava" href="404.html">الدورات</a></li>
<li class="navli"><a class="nava" href="/classes">الصفوف</a></li>
<li class="navli"><a class="nava" href="/">الصفحة الرئيسية</a></li>
</ul>
</nav>
<div class="div1">
<img src="/static/images/Logo.png" width="90" class="logo2">
<h1 class="t1">المواد </h1>
</div>
<div class="cardrow">
{% for material in material.all %}
<div class="cardcolumn">
{% for Lesson in Materials.vedio_set.all %}
<a href="{% url 'vedio' lesson.id %}" > lesson1</a>
{% endfor %}
<div class="card">
<img class="imgcls" src="{{ material.image.url }}">
<h1>{{ material.title }}</h1>
</div>
</a>
{% endfor %}
</div>
</div>
</div>
</body>
</html>
MODELS.py：
from django.db import models
from users.models import *
# Create your models here.
class Class(models.Model):
image= models.ImageField(upload_to="images")
name= models.CharField(max_length=200, default=1)
title= models.CharField(max_length=200)
def __str__(self):
return self.title
class Material(models.Model):
name= models.CharField(max_length=200, default=1)
title= models.CharField(max_length=200)
classes= models.ForeignKey(Class, default=1, on_delete=models.SET_DEFAULT)
def __str__(self):
return self.name
class Lesson(models.Model):
slug=models.SlugField()
video=models.FileField(upload_to="videos", default="")
title=models.CharField(max_length=200)
description=models.TextField()
thumbnail=models.ImageField(upload_to="images")
Material=models.ForeignKey(Material, default=1, on_delete=models.SET_DEFAULT)
allowed_membrship=models.ManyToManyField(Membership)
def __str__(self):
return self.title
VIWES.py：
from django.shortcuts import render, get_object_or_404
from .models import Class, Material, Lesson
# Create your views here.
def home(request):
Classes= Class.objects
return render(request, 'classes/index.html', {"class":Classes})
def classes(request):
Classes= Class.objects
return render(request, 'classes/Classes.html', {"class":Classes})
def materials(request, classes_id):
theclass= get_object_or_404(Class, pk=classes_id)
Materials = Material.objects.all()
context = {
'classes': theclass,
'material': Materials
}
return render(request, 'classes/Materials.html', context)
def vedio(request, lesson_id):
theMaterial=get_object_or_404(Material, pk=lesson_id)
theLesson=Lessons.objects.all
context={
'Material': theMaterial,
'Lesson':theLesson
}
return render(request, 'classes/Lesson.html', context)
URLS：
from django.contrib import admin
from django.urls import path
import classrooms.views
import users.views
from django.conf import settings
from django.conf.urls.static import static
urlpatterns = [
path('admin/', admin.site.urls),
path('', classrooms.views.home),
path('classes', classrooms.views.classes),
path('classes/<int:classes_id>', classrooms.views.materials, name="material"),
path('signup', users.views.signup, name="signup"),
path('login', users.views.login, name="login"),
path('logout', users.views.logout, name="logout"),
path('class/<int:classes_id>/<int:lessson_id>', classrooms.views.vedio, name="lessons")
]
urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
我认为我遇到了一些典型的错误，对不起
成员身份在另一个应用程序中，我认为您不需要它。就是这样，希望我明白了，谢谢
在Materials.html中，您可以通过Material.Lessons_set.all()进行反向访问：