Java小咖秀原文始发于：Django课程内容的表单类和视图类
一 表单类
from django import forms from .models import Course, Lesson # 课程标题表单类 class CreateCourseForm(forms.ModelForm): class Meta: model = Course fields = ("title", "overview") # 课程内容表单类 class CreateLessonForm(forms.ModelForm): class Meta: model = Lesson fields = ['course', 'title', 'video', 'description', 'attach'] def __init__(self, user, *args, **kwargs): super(CreateLessonForm, self).__init__(*args, **kwargs) # 通过user这个参数，筛选出当前用户的course值 self.fields['course'].queryset = Course.objects.filter(user=user)二 编写视图类
class CreateLessonView(LoginRequiredMixin, View): model = Lesson login_url = "/account/login/" # 重写view的get方法 def get(self, request , *args, **kwargs): # 创建表单类实例 form = CreateLessonForm(user=self.request.user) return render(request, "course/manage/create_lesson.html", {"form":form}) # 重写view的post方法，响应用户提交的表单 def post(self, request, *args, **kwargs): # 因为提交的表单中有上传的文件，所以必须传入request.FILES form = CreateLessonForm(self.request.user, request.POST, request.FILES) if form.is_valid(): new_lesson = form.save(commit=False) new_lesson.user = self.request.user new_lesson.save() return redirect("course:manage_course")三 编写前端模板
{% extends "article/base.html" %} {% block title %}create lesson{% endblock %} {% block content %} <div style="margin-left:200px;margin-top:10px;"> <form enctype="multipart/form-data" action="." method="post" class="form-horizontal">{% csrf_token %} <div style="margin-top: 10px;"> <div class="col-md-2 text-left"><span>内容标题:</span></div> <div class="col-md-10 text-left">{{form.title}}</div> </div> <div style="margin-top: 20px;"> <div class="col-md-2 text-left"><span>所属课程:</span></div> <div class="col-md-10 text-left">{{form.course}}</div> </div> <div style="margin-top: 20px;"> <div class="col-md-2 text-left"><span>上传视频:</span></div> <div class="col-md-10 text-left">{{form.video}}</div> </div> <div style="margin-top: 20px;"> <div class="col-md-2 text-left"><span>视频描述:</span></div> <div class="col-md-10 text-left">{{form.description}}</div> </div> <div style="margin-top: 20px;"> <div class="col-md-2 text-left"><span>本课附件:</span></div> <div class="col-md-10 text-left">{{form.attach}}</div> </div> <div style="margin-top: 20px;" class="text-center"> <input type="submit" value="Create Lesson"> </div> </form> </div> {% endblock %}四 编写URL
from django.conf.urls import url from django.views.generic import TemplateView from .views import AboutView, CourseListView, ManageCourseListView, CreateCourseView, DeleteCourseView, CreateLessonView, ListLessonsView, DetailLessonView from .views import StudentListLessonView urlpatterns = [ url(r'about/$', AboutView.as_view(), name="about"), url(r'course-list/$', CourseListView.as_view(), name="course_list"), url(r'manage-course/$', ManageCourseListView.as_view(), name="manage_course"), url(r'create-course/$', CreateCourseView.as_view(), name="create_course"), # 默认情况DeleteView类接收以pk或者slug作为参数传入的值，并且通过GET方式访问一个删除的 # 确认页面，然后以POST方式提交删除表单，才能完成删除 url(r'delete-course/(?P<pk>d+)/$', DeleteCourseView.as_view(), name="delete_course"), # 创建课程内容 url(r'create-lesson/$', CreateLessonView.as_view(), name="create_lesson"), ]五 编写前端入口
<div class="bg-info"> <div class="text-center" style="margin-top: 5px;"> <p><h4>文章管理</h4></p> <p><a href="{% url 'article:article_column'%}">栏目管理</a></p> <p><a href="{% url 'article:article_post'%}">发布文章</a></p> <p><a href="{% url 'article:article_list' %}">文章列表</a></p> <p><a href="{% url 'article:article_tag' %}">文章标签</a></p> </div> <hr> <div class="text-center" style="margin-top: 5px;"> <p><h4>图片管理</h4></p> <p><a href="{% url 'image:list_images' %}">图片管理</a></p> </div> <hr> <div class="text-center" style="margin-top: 5px;"> <p><h4>课程管理</h4></p> <p><a href="{% url 'course:manage_course' %}">课程管理</a></p> <p><a href="{% url 'course:create_lesson' %}">内容发布</a></p> </div> </div>六 测试
七 数据库生成情况
