Django查看课程内容标题列表

一功能描述

1 在“课程管理”列表的“操作”列中增加一个“查看”图标。

2 单击“查看”图标能够列出该课程标题下的所有课程内容标题。

3 在“课程内容标题”列表页面，单击每个标题名称，就可以查看该课程内容的详细信息。

二课程内容标题列表

1 编写视图类

# TemplateResponseMixin提供了一种模板渲染机制，在子类中，可以指定模板文件和渲染数据
class ListLessonsView(LoginRequiredMixin, TemplateResponseMixin, View):
    login_url = "/account/login/"
    # 定义模板文件
    template_name = 'course/manage/list_lessons.html'
    # 响应前端GET请求的方法，应该要识别课程标题，所以传入了参数course_id
    def get(self, request, course_id):
        # 根据course_id得到当前“课程标题对象”
        course = get_object_or_404(Course, id=course_id)
        # 通过该语句将该数据渲染到模板中
        return self.render_to_response({'course':course})

2 编写前端模板

{% extends "article/base.html" %}
{% block title %}List Lessons{% endblock %}
{% block content %}
<div>
    <div class='text-center'>
      <h1>{{ course.title }}</h1>
        <p>课程内容列表</p>
    </div>
    <table class="table table-hover" style="margin-top:10px">
        <tr>
            <td>序号</td>
            <td>内容标题</td>
            <td>发布日期</td>
        </tr>
        {% for lesson in course.lesson.all %}
        <!--得到所有Lesson的实例-->
        <tr id={{ forloop.counter }}>
            <td>{{ forloop.counter }}</td>
            <td><a href="{% url 'course:detail_lesson' lesson.id %}">{{ lesson.title }}</a></td>
            <td>{{ lesson.created|date:"Y-m-d" }}</td>
        </tr>
        {% endfor %}
    </table>
</div>
{% endblock %}

3 配置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"),
    # 课程标题列表
    url(r'list-lessons/(?P<course_id>\d+)/$', ListLessonsView.as_view(), name="list_lessons"),
]

4 编辑查看列表入口

{% extends "article/base.html" %}
{% load staticfiles %}
{% block title %}管理课程{% endblock %}

{% block content %}
<div>
    <div class='text-right'><a href="{% url 'course:create_course' %}"><button type="button" class="btn btn-primary">添加课程</button></a></div>
    <table class="table table-hover" style="margin-top:10px">
        <tr>
            <td>序号</td>
            <td>课程标题</td>
            <td>发布日期</td>
            <td>操作</td>
        </tr>
        {% for course in courses %}
        <tr id={{ forloop.counter }}>
            <td>{{ forloop.counter }}</td>
            <td>{{ course.title }}</a></td>
            <td>{{ course.created|date:"Y-m-d" }}</td>
            <td>
                <a name="edit" href="#"><span class="glyphicon glyphicon-pencil"></span></a>
                <a class="delete" nane="delete" href="{% url 'course:delete_course' course.id %}" ><span class="glyphicon glyphicon-trash" style="margin-left:20px;"></span></a>
                <!--查看课程内容列表入口-->
                <a href="{% url 'course:list_lessons' course.id %}"><span class="glyphicon glyphicon-search" style="margin-left:20px;"></span></a>
            </td>
        </tr>
        {% endfor %}
    </table>
</div>
<script type="text/javascript" src='{% static "js/jquery.js" %}'></script>
<script type="text/javascript">
function getCookie(name) {
    var cookieValue = null;
    if (document.cookie && document.cookie != '') {
        var cookies = document.cookie.split(';');
        for (var i = 0; i < cookies.length; i++) {
            var cookie = jQuery.trim(cookies[i]);
            // Does this cookie string begin with the name we want?
            if (cookie.substring(0, name.length + 1) == (name + '=')) {
                cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                break;
            }
        }
    }
    return cookieValue;
}
$(document).ready(function() {
    var csrftoken = getCookie('csrftoken');
    function csrfSafeMethod(method) {
        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
    }
    $.ajaxSetup({
        crossDomain: false, // obviates need for sameOrigin test
        beforeSend: function(xhr, settings) {
            if (!csrfSafeMethod(settings.type)) {
                xhr.setRequestHeader("X-CSRFToken", csrftoken);
            }
        }
    });
    var onDelete = function(){
        alert("确实要删除吗?");
        $.post(this.href, function(data) {
            // 前端得到反馈结果，就完成了删除和页面刷新
            if (data.result == "ok"){
              window.location.reload();
            } else {
                alert("出现了一些问题");
            }
        }).fail(function() {
            alert("error");
        });
        return false;
    }
    $(".delete").click(onDelete);
})
</script>
{% endblock %}

五测试

Django查看课程内容标题列表

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