Django 开发 MxOnline 项目笔记　－－　第9章课

作者: 江湖十年 | 来源:发表于2018-03-06 00:00 被阅读68次

一、课程讲师列表页

拷贝前端页面 teacher-list.html 和 teacher-detail.html 到 templates/ 目录下

001.png

课程讲师列表页

002.png

(1)定义 TeacherListView 类视图,处理课程讲师列表页

# apps/organization/views.py

class TeacherListView(View):
    """
    课程讲师列表页类视图
    """
    def get(self, request):
        current_page_name = "teacher_list_page"
        all_teachers = Teacher.objects.all().order_by("-add_time")

        # 根据人气(点击量)对 all_teachers 进行排序
        sort = request.GET.get("sort", "")
        if sort:
            if sort == "hot":
                all_teachers = all_teachers.order_by("-click_nums")

        # 获取人气排行前3的讲师
        sorted_teachers = all_teachers.order_by("-click_nums")[:3]

        # 对课程讲师进行分页
        try:
            page = request.GET.get('page', 1)
        except PageNotAnInteger:
            page = 1
        # Paginator 接收 3 个参数, 需要分页的对象列表, 每页显示的对象数量, 以及 request
        p = Paginator(all_teachers, 2, request=request)
        teachers = p.page(page)

        context = {
            "all_teachers": teachers,
            "sorted_teachers": sorted_teachers,
            "sort": sort,
            "current_page_name": current_page_name,
        }
        return render(request, "teachers-list.html", context)

(2)配置 url

# apps/organization/urls.py

from django.urls import path, re_path

from .views import TeacherListView


app_name = "org"
urlpatterns = [
    ...
    # 课程讲师列表页
    path("teacher/list/", TeacherListView.as_view(), name="teacher_list"),
]

(3)前端 teacher-list.html 页面

# templates/teacher-list.html

{% extends "base.html" %}
{% load staticfiles %}

{% block title %}课程讲师 - 慕学在线网{% endblock %}

{% block custom_bread %}
    <section>
        <div class="wp">
            <ul  class="crumbs">
                <li><a href="{% url "index" %}">首页</a>></li>
                <li>课程讲师</li>
            </ul>
        </div>
    </section>
{% endblock custom_bread %}

{% block content %}
    <section>
        <div class="wp butler_list_box list">
        <div class='left'>
            <div class="butler_list layout">
                <div class="head">
                    <ul class="fl tab_header">
                        <li {% if sort == "" %}class="active"{% endif %}><a href="?sort=">全部</a> </li>
                        <li {% if sort == "hot" %}class="active"{% endif %}><a href="?sort=hot">人气 &#8595;</a></li>
                    </ul>
                    <div class="fr butler-num">共<span class="key">9</span>人&nbsp;&nbsp;&nbsp;</div>
                </div>
                {% for teacher in all_teachers.object_list %}
                    <dl class="des">
                        <dt>
                            <a href="{% url "org:teacher_detail" teacher.id %}">
                                <div class="picpic">
                                    <img width="100" height="100" class="scrollLoading" src="{{ MEDIA_URL }}{{ teacher.image }}"/>
                                </div>
                            </a>
                            <div class="btn">
                                <div class="fr btn2 bdsharebuttonbox"
                                     data-text="授课教师-奥巴马-慕学在线"
                                     data-desc="我在#慕课网#发现了教师“奥巴马”，对学习中的小伙伴很有帮助，一起来看看吧。"
                                     data-comment="奥巴马金牌讲师，从业年限：5年"
                                     >
                                    <span class="fl">分享</span>
                                    <a href="#" class="bds_more" data-cmd="more"></a>
                                </div>
                            </div>
                        </dt>
                        <dd>
                            <a href="{% url "org:teacher_detail" teacher.id %}">
                                <h1>{{ teacher.name }}<span class="key picbig">金牌讲师</span></h1>
                            </a>
                            <ul class="cont">
                                <li>工作年限：<span>{{ teacher.work_years }}年</span></li>
                                <li>工作职位：<span>{{ teacher.work_position }}</span></li>
                                <li>就职公司：<span>{{ teacher.work_company }}&nbsp;</span></li>
                                <li>年龄：<span>{{ teacher.age }}岁</span></li>
                                <li>教学特点：<span>{{ teacher.work_points }}</span></li>
                            </ul>
                        </dd>
                        <a class="buy buyservice" href="{% url "org:teacher_detail" teacher.id %}"><br/>查看<br/>详情</a>
                    </dl>
                {% endfor %}
            </div>
            <div class="pageturn pagination">
             <ul>
                 {% if all_teachers.has_previous %}
                     <li class="long"><a href="?{{ all_teachers.previous_page_number.querystring }}">上一页</a></li>
                 {% endif %}
                 {% for page in all_teachers.pages %}
                     {% if page %}
                         {% ifequal page all_teachers.number %}
                             <li class="page active"><a href="?{{ page.querystring }}">{{ page }}</a></li>
                         {% else %}
                             <li><a href="?{{ page.querystring }}" class="page">{{ page }}</a></li>
                         {% endifequal %}
                     {% else %}
                         <li class="none"><a href="">...</a></li>
                     {% endif %}
                 {% endfor %}
                 {% if all_teachers.has_next %}
                     <li class="long"><a href="?{{ all_teachers.next_page_number.querystring }}">下一页</a></li>
                 {% endif %}
             </ul>
         </div>
        </div>
        <div class="right layout">
            <div class="head">讲师排行榜</div>
                {% for hot_teacher in sorted_teachers %}
                    <dl class="des">
                        <span class="num fl">1</span>
                        <a href="/diary/hk_detail/6/">
                            <dt>
                                <img width="50" height="50" class="scrollLoading"  src="{{ MEDIA_URL }}{{ hot_teacher.image }}"/>
                            </dt>
                        </a>
                        <dd>
                            <a href="/diary/hk_detail/6/">
                                <h1 title="{{ hot_teacher.name }}">{{ hot_teacher.name }}</h1>
                            </a>
                            <p>工作年限：<span>{{ hot_teacher.work_years }}年</span></p>
                        </dd>
                    </dl>
                {% endfor %}
            </div>
        </div>
    </section>
{% endblock content %}

二、课程讲师详情页

003.png

(1)定义 TeacherDetailView 类视图

# apps/organization/views.py

class TeacherDetailView(View):
    def get(self, request, id):
        current_page_name = "teacher_list_page"
        teacher = Teacher.objects.get(pk=id)
        # 获取人气排行前3的讲师
        sorted_teachers = Teacher.objects.all().order_by("-click_nums")[:3]
        # 获取讲师所有课程
        teacher_courses = Course.objects.filter(teacher=teacher)

        # 判断用户是否已收藏过这个讲师
        has_teacher_favorite = False
        if UserFavorite.objects.filter(user=request.user, favorite_type=3, favorite_id=teacher.id):
            has_teacher_favorite = True

        # 判断用户是否已收藏过这个讲师所在机构
        has_organization_favorite = False
        if UserFavorite.objects.filter(user=request.user, favorite_type=2, favorite_id=teacher.organization.id):
            has_organization_favorite = True

        context = {
            "teacher": teacher,
            "sorted_teachers": sorted_teachers,
            "teacher_courses": teacher_courses,
            "has_teacher_favorite": has_teacher_favorite,
            "has_organization_favorite": has_organization_favorite,
            "current_page_name": current_page_name,
        }
        return render(request, "teacher-detail.html", context)

(2)配置 url

# apps/organization/urls.py

from django.urls import path, re_path

from .views import TeacherDetailView


app_name = "org"
urlpatterns = [
    ...
    # 课程讲师详情页
    path("teacher/detail/<int:id>", TeacherDetailView.as_view(), name="teacher_detail"),
]

(3)前端页面 teacher-detail.html
课程讲师详情页有两个收藏按钮,分别是左侧的收藏讲师和右侧的收藏结构,这两个收藏是通过 ajax 实现的,同第7章的课程机构收藏功能是完全相同的,直接拷贝原有的代码即可.
详情页的讲师排行榜也是和列表页讲师排行榜是相同的,代码一致.

# templates/teacher-detail.html

{% extends "base.html" %}
{% load staticfiles %}

{% block title %}讲师详情 - 慕学在线网{% endblock %}

{% block custom_bread %}
    <section>
        <div class="wp">
            <ul  class="crumbs">
                <li><a href="{% url "index" %}">首页</a>></li>
                <li><a href="{% url "org:teacher_list" %}">授课讲师</a>></li>
                <li>讲师详情</li>
            </ul>
        </div>
    </section>
{% endblock custom_bread %}

{% block content %}
    <section>
        <div class="wp butler-detail-box butler-diaryd-box clearfix">
            <div class="fl list">
                <div class="butler_detail_list clearfix">
                    <div class="brief">
                        <dl class="des">
                            <dt>
                                <div class="picpic">
                                    <img width="100" height="100" src="{{ MEDIA_URL }}{{ teacher.image }}"/>
                                </div>
                                <div class="btn">
                                    <span class="fl btn1 collectionbtn" id="jsLeftBtn">
                                         {% if has_teacher_favorite %}已收藏{% else %}收藏{% endif %}
                                    </span>
                                    <span class="fr btn2 shareBtn bdsharebuttonbox"
                                          data-text="授课教师-李老师-慕学网"
                                          data-desc="我在#慕课网#发现了"
                                          data-comment="李老师，工作年限：5年；学历：本科；所在公司：阿里巴巴&nbsp;；经典案例：django入门和深入；flask入门"
                                          data-url="/diary/hk_detail/10/">
                                        <span class="fl">分享</span>
                                        <a href="#" class="bds_more" data-cmd="more"></a>
                                    </span>
                                </div>
                            </dt>
                            <dd>
                                <a href="/diary/hk_detail/10/">
                                    <h1>{{ teacher.name }}<span class="key picbig">金牌讲师</span></h1>
                                </a>
                                <ul class="cont">
                                    <li>工作年限：<span>{{ teacher.work_years }}年</span></li>
                                    <li>就职公司：<span>{{ teacher.work_company }}</span></li>
                                    <li>工作职位：<span>{{ teacher.work_position }}&nbsp;</span></li>
                                    <li>教学特点：<span>{{ teacher.work_points }}</span></li>
                                </ul>
                            </dd>
                        </dl>
                    </div>
                </div>
                <div class="butler_detail_cont clearfix">
                    <div class="left layout">
                    <div class="head">
                        <ul class="tab_header">
                            <li class="active"><a href="/diary/hk_detail/10/">全部课程</a> </li>
                        </ul>
                    </div>
                        <div class="companycenter">
                            <div class="group_list brief">
                                {% for teacher_course in teacher_courses %}
                                    <div class="module1_5 box">
                                        <a href="{% url "course:course_detail" teacher_course.id %}">
                                            <img width="214" height="190" class="scrollLoading" src="{{ MEDIA_URL }}{{ teacher_course.image }}"/>
                                        </a>
                                        <div class="des">
                                            <a href="{% url "course:course_detail" teacher_course.id %}"><h2>{{ teacher_course.name }}</h2></a>
                                            <span class="fl">时长：<i class="key">{{ teacher_course.learn_times }}</i></span>
                                            <span class="fr">学习人数：{{ teacher_course.students }}</span>
                                        </div>
                                        <div class="bottom">
                                            <span class="fl">{{ teacher_course.course_org.name }}</span>
                                            <span class="star fr  notlogin" data-favid="15">{{ teacher_course.favorite_nums }}</span>
                                        </div>
                                    </div>
                                {% endfor %}
                            </div>
                        </div>
                    <!--<div class="pageturn">-->
                        <!--<ul class="pagelist">-->
                            <!--<li class="active"><a href="?page=1">1</a></li>-->
                        <!--</ul>-->
                    <!--</div>-->
                </div>
                </div>
            </div>
            <div class="fr list">
                 <div class="butler_detail_list">
                    <div class="right butler-company-box">
                    <div class="head">
                        <h1>{{ teacher.organization.name }}</h1>
                        <p>知名高校，权威教学</p>
                    </div>
                    <div class="pic">
                        <a href="{% url "org:org_home" teacher.organization.id %}">
                            <img width="150" height="80" src="{{ MEDIA_URL }}{{ teacher.organization.image }}"/>
                        </a>
                    </div>
                    <a href="{% url "org:org_home" teacher.organization.id %}">
                        <h2 class="center">{{ teacher.organization.name }}</h2>
                    </a>
                    <p class="center tell">地址：{{ teacher.organization.address }}</p>
                    <a class="btn" id="jsRightBtn">{% if has_organization_favorite %}已收藏{% else %}收藏{% endif %}</a>
                </div>
                </div>
                <div class="butler_detail_cont">
                    <div class="butler_list_box">
                        <div class="right layout">
                            <div class="head">讲师排行榜</div>
                            {% for hot_teacher in sorted_teachers %}
                                <dl class="des">
                                    <span class="num fl">1</span>
                                    <a href="{% url "org:teacher_detail" hot_teacher.id %}">
                                        <dt>
                                            <img width="50" height="50" class="scrollLoading"  src="{{ MEDIA_URL }}{{ hot_teacher.image }}"/>
                                        </dt>
                                    </a>
                                    <dd>
                                        <a href="{% url "org:teacher_detail" hot_teacher.id %}">
                                            <h1 title="{{ hot_teacher.name }}">{{ hot_teacher.name }}</h1>
                                        </a>
                                        <p>工作年限：<span>{{ hot_teacher.work_years }}年</span></p>
                                    </dd>
                                </dl>
                            {% endfor %}
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>
{% endblock content %}

{% block custom_js %}
<script type="text/javascript">
    //收藏分享
    function add_favorite(current_elem, favorite_id, favorite_type){
        $.ajax({
            cache: false,
            type: "POST",
            url:"{% url "org:add_favorite" %}",
            data:{'favorite_id':favorite_id, 'favorite_type':favorite_type},
            async: true,
            // 因为用户点击"收藏"按钮后,向后台提交 POST 请求时,没有通过 form,
            // 不能在 form 中定义 {% csrf_token %}, 所以只能在这里把 {{ csrf_token }} 传递进来
            beforeSend:function(xhr, settings){
                xhr.setRequestHeader("X-CSRFToken", "{{ csrf_token }}");
            },
            success: function(data) {
                var data = JSON.parse(data);
                if(data.status == "fail"){
                    if(data.msg == "用户未登录"){
                        window.location.href="{% url "login" %}";
                    }else{
                        alert(data.msg);
                    }

                }else if(data.status == 'success'){
                    current_elem.text(data.msg);
                }
            },
        });
    }

    // 监听事件, 用来监听收藏按钮的点击操作
    $('#jsLeftBtn').on('click', function(){
        add_favorite($(this), {{ teacher.id }}, 3);
    });

    $('#jsRightBtn').on('click', function(){
        add_favorite($(this), {{ teacher.organization.id }}, 2);
    });

</script>
{% endblock custom_js %}

Django 开发 MxOnline 项目笔记　－－　第9章课

一、课程讲师列表页

二、课程讲师详情页

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Django 开发 MxOnline 项目笔记 －－ 第9章 课

一、课程讲师列表页

二、课程讲师详情页

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Django 开发 MxOnline 项目笔记　－－　第9章课