Сделал вывод уроков в курсах

source/portal/urls.py

@@ -22,5 +22,6 @@ urlpatterns = [
     path('', webapp_views.CoursesListView.as_view(), name='courses_list'),
     path('course/<int:course_pk>/', webapp_views.CourseDetailView.as_view(), name='course_detail'), 
     path('course/<int:pk>/delete/', webapp_views.CourseDeleteView.as_view(), name='course_delete'), 
-    path('course/new/', webapp_views.CourseCreateView.as_view(), name='course_create')
+    path('course/new/', webapp_views.CourseCreateView.as_view(), name='course_create'), 
+    path('course/<int:pk>/edit/', webapp_views.CourseEditView.as_view(), name='course_edit')
 ]

source/webapp/templates/courses/courses_list.html

@@ -16,7 +16,7 @@
                 </div>
                 <div class="card-buttons" style="text-align: center;">
                     <a class="btn btn-primary" href="{% url 'course_detail' course.id %}"> See more </a>
-                    <a class="btn btn-info" href="#"> Edit </a>
+                    <a class="btn btn-info" href="{% url 'course_edit' course.id %}"> Edit </a>
                     <a class="btn btn-danger" href="{% url 'course_delete' course.id %}"> Delete </a>
                 </div>
             </div>

source/webapp/templates/courses/detail.html

@@ -6,7 +6,7 @@
     <a href="{% url "courses_list" %}"> << Return to the main page..</a>
     <hr>
     <div class='course-block-detail'>
-        <div class="card">
+        <div class="card" style="width: 100%; height: 400px;">
             <div class="card-header">
                 <h4>{{course.title}}</h4>
             </div>
@@ -20,6 +20,18 @@
             </div>
         </div>
     </div>
+    {% for class in course.courses.all %}
+    <div class="card border-dark mb-3" style="max-width: 100%; height: 200px; margin: 15px auto;">
+        <div class="card-header"> 
+            <p> <b>Created at:</b> {{ class.created_at }} - <b>by:</b> {{ course.teacher }}</p> 
+        </div>
+        <div class="card-body text-dark">
+            <h5 class="card-title">Topic: {{ class.title }} </h5>
+            <p class="card-text"> Description: {{ class.description|truncatewords:5 }} </p>
+            {{ class.file }}
+        </div>
+    </div>
+    {% endfor %}
     <hr>
     <a href="{% url "courses_list" %}"> << Return to the main page..</a>
 {% endblock %}
\ No newline at end of file

source/webapp/templates/courses/edit.html

+{% extends "base.html" %}
+{% load crispy_forms_filters %}
+
+{% block title %} Edit Course {% endblock %}
+
+{% block content %}
+    <a href="{% url "courses_list" %}">Return to the main page..</a>
+    <hr>
+    <h1>Edit course "{{ course.title }}"</h1>
+    <div class='column-center'>
+        <form method="POST">
+            {% csrf_token %}
+            {{ form|crispy }}
+        </form>
+    </div>
+    <hr>
+    <a href="{% url "courses_list" %}">Return to the main page..</a>
+    
+{% endblock %}

source/webapp/views/courses_views.py

-from typing import List
-from django.shortcuts import render 
-from django.urls.base import reverse_lazy
-from django.views.generic import ListView, CreateView, UpdateView, DetailView, DeleteView
+from django.shortcuts import get_object_or_404, render 
+from django.urls.base import reverse, reverse_lazy
+from django.views.generic import ListView, CreateView, DetailView, DeleteView
+from django.views.generic import UpdateView
 
 
 from webapp.models import Course
@@ -39,4 +39,7 @@ class CourseDeleteView(DeleteView):
 
 
 class CourseEditView(UpdateView):
-    pass
+    model = Course
\ No newline at end of file
+    fields = ['title', 'description', 'start_date']
+    template_name = 'courses/edit.html'
+