（三）Django 编写在线教育平台笔记(课程详情页配置+动态显示后端数据+分页+筛选+排序功能)

编程语言 2018-06-10 05:17:20 阅读次数: 2

前端页面地址 https://github.com/Lxstrive/DjangoHtml

1.把org-list.html拷贝到项目templates中

2.很多页面都有共同部分，所以可以创建一个母版base.html 用来继承（减少代码量）


3.把org-list.html代码剪切进母版base.html中 用模板语句block包裹可变动模块 母板创建完成

<!DOCTYPE html>
<html>
{% load staticfiles %}
<head>
	<meta charset="UTF-8">
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" >
	<title>{% block title %}课程机构列表 - X.xx在线网{% endblock %}</title>
	<link rel="stylesheet" type="text/css" href="{% static 'css/reset.css' %}">
	<link rel="stylesheet" type="text/css" href="{% static 'css/animate.css' %}">
	<link rel="stylesheet" type="text/css" href="{% static 'css/style.css' %}">
    {% block custom_css %}{% endblock %}
    <script src="{% static 'js/jquery.min.js' %}" type="text/javascript"></script>
    <script src="{% static 'js/jquery-migrate-1.2.1.min.js' %}" type="text/javascript"></script>
    {% block custom_js %}{% endblock %}

</head>
<body>
<section class="headerwrap ">
    <header>
		<div  class=" header">
 			<div class="top">
				<div class="wp">
					<div class="fl"><p>服务电话：<b>33333333</b></p></div>
					<!--登录后跳转-->


                        <a style="color:white" class="fr registerbtn" href="register.html">注册</a>
                        <a style="color:white" class="fr loginbtn" href="login.html">登录</a>



				</div>
			</div>

            <div class="middle">
                <div class="wp">
                    <a href="index.html"><img class="fl" src="../images/logo.jpg"/></a>
                    <div class="searchbox fr">
                        <div class="selectContainer fl">
                            <span class="selectOption" id="jsSelectOption" data-value="course">
                                公开课
                            </span>
                            <ul class="selectMenu" id="jsSelectMenu">
                                <li data-value="course">公开课</li>
                                <li data-value="org">课程机构</li>
                                <li data-value="teacher">授课老师</li>
                            </ul>
                        </div>
                        <input id="search_keywords" class="fl" type="text" value="" placeholder="请输入搜索内容"/>
                        <img class="search_btn fr" id="jsSearchBtn" src="../images/search_btn.png"/>
                    </div>
                </div>
            </div>


			<nav>
				<div class="nav">
					<div class="wp">
						<ul>
							<li ><a href="index.html">首页</a></li>
							<li >
								<a href="course-list.html">
									公开课<img class="hot" src="../images/nav_hot.png">
								</a>
							</li>
							<li >
								<a href="teachers-list.html">授课教师</a>
							</li>
							<li class="active" ><a href="org-list.html">授课机构</a></li>
						</ul>
					</div>
				</div>
			</nav>

			</div>
    </header>
</section>
<!--crumbs start-->
{% block custom_bread %}
    <section>
        <div class="wp">
            <ul  class="crumbs">
                <li><a href="index.html">首页</a>></li>
                <li>课程机构</li>
            </ul>
        </div>
    </section>
{% endblock %}
{% block content %}
<section>
	<div class="wp butler_list_box list">
	<div class='left'>
		<div class="listoptions">
			<ul>
				<li>
					<h2>机构类别</h2>
					<div class="cont">
                        <a href="?city="><span class="active2">全部</span></a>

                            <a href="?ct=pxjg&city="><span class="">培训机构</span></a>

                            <a href="?ct=gx&city="><span class="">高校</span></a>

                            <a href="?ct=gr&city="><span class="">个人</span></a>

					</div>
				</li>
				<li>
					<h2>所在地区</h2>
					<div class="more">更多</div>
					<div class="cont">
                        <a href="?ct="><span class="active2">全部</span></a>

                                <a href="?city=1&ct="><span class="">北京市</span></a>

                                <a href="?city=2&ct="><span class="">上海市</span></a>

                                <a href="?city=3&ct="><span class="">广州市</span></a>

                                <a href="?city=4&ct="><span class="">深圳市</span></a>

                                <a href="?city=5&ct="><span class="">天津市</span></a>

					</div>
				</li>
			</ul>
		</div>
		<div class="all">共<span class="key">15</span>家</div>
		<div class="butler_list company list">
		<div class="layout">
			<div class="head">
				<ul class="tab_header">
					<li class="active"><a href="?ct=&city=">全部</a> </li>
					<li class=""><a href="?sort=students&ct=&city=">学习人数 ↓</a></li>
					<li class=""><a href="?sort=courses&ct=&city=">课程数 ↓</a></li>
				</ul>
			</div>

                <dl class="des difdes">
                    <dt>
                        <a href="org-detail-homepage.html">
                            <img width="200" height="120" class="scrollLoading" data-url="../media/org/2016/11/imooc.png"/>
                        </a>
                    </dt>
                    <dd>
                        <div class="clearfix">
                             <a href="org-detail-homepage.html">
                                 <h1>慕课网</h1>
                                 <div class="pic fl">

                                         <img src="../images/authentication.png"/>

                                         <img src="../images/gold.png"/>

                                 </div>
                             </a>
                        </div>
                        <ul class="cont">
                            <li class="first"><p class="pic9">课程数：<span>1</span></p><p class="c7">学习人数：<span>1000</span></p></li>
                            <li class="c8" style="padding-left:18px;">北京市海淀区中关村北大街</li>
                            <li class="pic10" style="padding-left:18px;">经典课程：

                                    <a href="/diary/19/">c语言基础入门</a>

                                    <a href="/diary/16/">数据库基础</a>

                            </li>
                        </ul>
                    </dd>
                    <div class="buy start_groupbuy jsShowPerfect2" data-id="22"><br/>联系<br/>服务</div>
                </dl>

                <dl class="des difdes">
                    <dt>
                        <a href="org-detail-homepage.html">
                            <img width="200" height="120" class="scrollLoading" data-url="../media/org/2016/11/bjdx.jpg"/>
                        </a>
                    </dt>
                    <dd>
                        <div class="clearfix">
                             <a href="org-detail-homepage.html">
                                 <h1>北京大学</h1>
                                 <div class="pic fl">

                                         <img src="../images/authentication.png"/>

                                         <img src="../images/gold.png"/>

                                 </div>
                             </a>
                        </div>
                        <ul class="cont">
                            <li class="first"><p class="pic9">课程数：<span>1</span></p><p class="c7">学习人数：<span>1000</span></p></li>
                            <li class="c8" style="padding-left:18px;">北京市海淀区中关村北大街</li>
                            <li class="pic10" style="padding-left:18px;">经典课程：

                                    <a href="/diary/19/">c语言基础入门</a>

                                    <a href="/diary/16/">数据库基础</a>

                            </li>
                        </ul>
                    </dd>
                    <div class="buy start_groupbuy jsShowPerfect2" data-id="22"><br/>联系<br/>服务</div>
                </dl>

                <dl class="des difdes">
                    <dt>
                        <a href="org-detail-homepage.html">
                            <img width="200" height="120" class="scrollLoading" data-url="../media/org/2016/11/qhdx-logo.png"/>
                        </a>
                    </dt>
                    <dd>
                        <div class="clearfix">
                             <a href="org-detail-homepage.html">
                                 <h1>清华大学</h1>
                                 <div class="pic fl">

                                         <img src="../images/authentication.png"/>

                                         <img src="../images/gold.png"/>

                                 </div>
                             </a>
                        </div>
                        <ul class="cont">
                            <li class="first"><p class="pic9">课程数：<span>1</span></p><p class="c7">学习人数：<span>1000</span></p></li>
                            <li class="c8" style="padding-left:18px;">北京市海淀区中关村北大街</li>
                            <li class="pic10" style="padding-left:18px;">经典课程：

                                    <a href="/diary/19/">c语言基础入门</a>

                                    <a href="/diary/16/">数据库基础</a>

                            </li>
                        </ul>
                    </dd>
                    <div class="buy start_groupbuy jsShowPerfect2" data-id="22"><br/>联系<br/>服务</div>
                </dl>

                <dl class="des difdes">
                    <dt>
                        <a href="org-detail-homepage.html">
                            <img width="200" height="120" class="scrollLoading" data-url="../media/org/2016/11/njdx.jpg"/>
                        </a>
                    </dt>
                    <dd>
                        <div class="clearfix">
                             <a href="org-detail-homepage.html">
                                 <h1>南京大学</h1>
                                 <div class="pic fl">

                                         <img src="../images/authentication.png"/>

                                         <img src="../images/gold.png"/>

                                 </div>
                             </a>
                        </div>
                        <ul class="cont">
                            <li class="first"><p class="pic9">课程数：<span>1</span></p><p class="c7">学习人数：<span>1000</span></p></li>
                            <li class="c8" style="padding-left:18px;">北京市海淀区中关村北大街</li>
                            <li class="pic10" style="padding-left:18px;">经典课程：

                                    <a href="/diary/19/">c语言基础入门</a>

                                    <a href="/diary/16/">数据库基础</a>

                            </li>
                        </ul>
                    </dd>
                    <div class="buy start_groupbuy jsShowPerfect2" data-id="22"><br/>联系<br/>服务</div>
                </dl>

                <dl class="des difdes">
                    <dt>
                        <a href="org-detail-homepage.html">
                            <img width="200" height="120" class="scrollLoading" data-url="../media/org/2016/11/imooc_klgAUn5.png"/>
                        </a>
                    </dt>
                    <dd>
                        <div class="clearfix">
                             <a href="org-detail-homepage.html">
                                 <h1>慕课网2</h1>
                                 <div class="pic fl">

                                         <img src="../images/authentication.png"/>

                                         <img src="../images/gold.png"/>

                                 </div>
                             </a>
                        </div>
                        <ul class="cont">
                            <li class="first"><p class="pic9">课程数：<span>1</span></p><p class="c7">学习人数：<span>1000</span></p></li>
                            <li class="c8" style="padding-left:18px;">北京市海淀区中关村北大街</li>
                            <li class="pic10" style="padding-left:18px;">经典课程：

                                    <a href="/diary/19/">c语言基础入门</a>

                                    <a href="/diary/16/">数据库基础</a>

                            </li>
                        </ul>
                    </dd>
                    <div class="buy start_groupbuy jsShowPerfect2" data-id="22"><br/>联系<br/>服务</div>
                </dl>

		</div>
		 <div class="pageturn">
            <ul class="pagelist">





                            <li class="active"><a href="?page=1">1</a></li>





                            <li><a href="?page=2" class="page">2</a></li>





                            <li><a href="?page=3" class="page">3</a></li>




                    <li class="long"><a href="?page=2">下一页</a></li>


            </ul>
        </div>
		</div>
	</div>
	<div class="right companyright">
			<div class="head">我要学习</div>
			<form class="rightform" id="jsStayForm">
				<div>
                    <img src="../images/rightform1.png"/>
                    <input type="text" name="name" id="companyName" placeholder="名字" maxlength="25" />
                </div>
				<div>
                    <img src="../images/rightform2.png"/>
                    <input type="text" name="mobile" id="companyMobile" placeholder="联系电话"/>
                </div>
				<div>
                    <img src="../images/rightform3.png"/>
                    <input type="text" name="course_name" id="companyAddress" placeholder="课程名" maxlength="50" />
                </div>
                <p class="error company-tips" id="jsCompanyTips"></p>
				<input class="btn" type="text" id="jsStayBtn" value="立即咨询 >" />
            <input type='hidden' name='csrfmiddlewaretoken' value='5I2SlleZJOMUX9QbwYLUIAOshdrdpRcy' />
            </form>
		</div>

		<div class="right companyrank layout">
			<div class="head">授课机构排名</div>


                <dl class="des">
                    <dt class="num fl">1</dt>
                    <dd>
                        <a href="/company/2/"><h1>慕课网</h1></a>
                        <p>北京市</p>
                    </dd>
                </dl>

                <dl class="des">
                    <dt class="num fl">2</dt>
                    <dd>
                        <a href="/company/2/"><h1>慕课网2</h1></a>
                        <p>深圳市</p>
                    </dd>
                </dl>

                <dl class="des">
                    <dt class="num fl">3</dt>
                    <dd>
                        <a href="/company/2/"><h1>北京大学</h1></a>
                        <p>北京市</p>
                    </dd>
                </dl>




		</div>
        </div>
</section>
{% endblock %}
<footer>
		<div class="footer">
			<div class="wp">
				<ul class="cont">
					<li class="logo"><a href=""><img src="../images/footlogo.png"/></a></li>
					<li class="code"><img src="../images/code.jpg"/><p class="center">扫描关注微信</p></li>
					<li class="third"><img class="fl" src="../images/tell.png"/><p class="tell">33333333</p><p class="time">周一至周日 9:00-18:00</p></li>
				</ul>

			</div>
			<p class="line"></p>
			<div class="wp clear">
                <span class="fl">? 2016 www.projectsedu.com 慕学在线-在线学习交流平台 保留所有权利</span>
                <span class="fr">copyright ? 2016 ICP备案证书号：蜀ICP备xxxxx号-1</span>
			</div>
		</div>
	</footer>

<section>
    <ul class="sidebar">
        <li class="qq">
            <a target="_blank" href="http://wpa.qq.com/msgrd?v=3&uin=2023525077&site=qq&menu=yes"></a>
        </li>
        <li class="totop"></li>
    </ul>
</section>
<script src="{% static 'js/selectUi.js' %}" type='text/javascript'></script>
<script src="{% static 'js/deco-common.js' %}" type='text/javascript'></script>
<script type="text/javascript" src="{% static 'js/plugins/laydate/laydate.js' %}"></script>
<script src="{% static 'js/plugins/layer/layer.js' %}"></script>
<script src="{% static 'js/plugins/queryCity/js/public.js' %}" type="text/javascript"></script>
<script src="{% static 'js/unslider.js' %}" type="text/javascript"></script>
<script src="{% static 'js/plugins/jquery.scrollLoading.js' %}"  type="text/javascript"></script>
<script src="{% static 'js/deco-common.js' %}"  type="text/javascript"></script>

<script>
    $(function(){
        $('#jsStayBtn').on('click', function(){
            $.ajax({
                cache: false,
                type: "POST",
                url:"/org/add_ask/",
                data:$('#jsStayForm').serialize(),
                async: true,
                success: function(data) {
                    if(data.status == 'success'){
                        $('#jsStayForm')[0].reset();
                        alert("提交成功")
                    }else if(data.status == 'fail'){
                        $('#jsCompanyTips').html(data.msg)
                    }
                },
            });
        });
    })

</script>

</body>
</html>

4.在org-list.html中继承母版base.html页面 并修改


5.配置URLS


  配置media URLS



6.在organitionAPP中编写View视图函数

# _*_ coding: utf-8 _*_
from django.shortcuts import render

from django.views.generic import View


class OrgView(View):
    """
        课程机构列表功能
    """
    def get(self, request):
        return render(request, 'org-list.html', {})

页面可以正常显示


城市列表页后台功能展示

1.在Xadmin中添加数据 城市 课程机构   并且在settings中配置上传文件路径（新建media存放由后台上传的文件）


# 配置上传文件路径
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')



动态显示后端数据到前端页面视图函数

class OrgView(View):
    """
        课程机构列表功能
    """
    def get(self, request):
        # 获取到所有数据中的机构
        all_orgs = CourseOrg.objects.all()
        # 获取页面机构数量
        org_nums = all_orgs.count()
        # 获取到所有数据中的城市
        all_citys = CityDict.objects.all()
        return render(request, 'org-list.html', {
            'all_orgs': all_orgs,
            'all_citys': all_citys,
            'org_nums': org_nums
        })
配置org-list.html页面 


 {% for course_org in all_orgs %}
                    <dl class="des difdes">
                    <dt>
                        <a href="org-detail-homepage.html">
                            <img width="200" height="120" class="scrollLoading" data-url="{{ MEDIA_URL }}{{ course_org.image }}"/>
                        </a>
                    </dt>
                    <dd>
                        <div class="clearfix">
                             <a href="org-detail-homepage.html">
                                 <h1>{{ course_org.name }}</h1>
                                 <div class="pic fl">

                                         <img src="{% static 'images/authentication.png' %}"/>

                                         <img src="{% static 'images/gold.png' %}"/>

                                 </div>
                             </a>
                        </div>
                        <ul class="cont">
                            <li class="first"><p class="pic9">课程数：<span>1</span></p><p class="c7">学习人数：<span>1000</span></p></li>
                            <li class="c8" style="padding-left:18px;">北京市海淀区中关村北大街</li>
                            <li class="pic10" style="padding-left:18px;">经典课程：

                                    <a href="/diary/19/">c语言基础入门</a>

                                    <a href="/diary/16/">数据库基础</a>

                            </li>
                        </ul>
                    </dd>
                    <div class="buy start_groupbuy jsShowPerfect2" data-id="22"><br/>联系<br/>服务</div>
                </dl>
                {% endfor %}

前端页面动态显示后端添加的数据


 org-list.html分页功能

github地址  ：https://github.com/jamespacileo/django-pure-pagination

安装库 并且添加到settings APP中 
pip install django-pure-pagination

INSTALLED_APPS = (
    ...
    'pure_pagination',
)
编写视图函数 
from pure_pagination import Paginator, EmptyPage, PageNotAnInteger


class OrgView(View):
    """
        课程机构列表功能
    """
    def get(self, request):
        # 获取到所有数据中的机构
        all_orgs = CourseOrg.objects.all()
        # 获取页面机构数量
        org_nums = all_orgs.count()
        # 获取到所有数据中的城市
        all_citys = CityDict.objects.all()

        # 对课程机构进行分页
        try:
            page = request.GET.get('page', 1)
        except PageNotAnInteger:
            page = 1
        p = Paginator(all_orgs, 3, request=request)
        orgs = p.page(page)

        return render(request, 'org-list.html', {
            'all_orgs': orgs,
            'all_citys': all_citys,
            'org_nums': org_nums
        })

配置前端页面

<div class="pageturn">
            <ul class="pagelist">
                {% if all_orgs.has_previous %}
                    <li class="long"><a href="?{{ all_orgs.previous_page_number.querystring }}">上一页</a></li>
                {% endif %}
                {% for page in all_orgs.pages %}
                        {% if page %}
                        {% ifequal page all_orgs.number %}
                            <li class="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_orgs.has_next %}
                    <li class="long">
                        <a href="?{{ all_orgs.next_page_number.querystring }}">下一页</a>
                    </li>
               {% endif %}
            </ul>
        </div>

分页功能完成



页面城市 机构类别 筛选 右侧课程机构排名 功能

class OrgView(View):
    """
        课程机构列表功能
    """
    def get(self, request):
        # 获取到所有数据中的机构
        all_orgs = CourseOrg.objects.all()
        # 获取到所有数据中的城市
        all_citys = CityDict.objects.all()
        # 根据点击量进行筛选排序
        hot_orgs = all_orgs.order_by('-click_nums')[:3]
        # 取出筛选城市
        city_id = request.GET.get('city', '')
        if city_id:
            all_orgs = all_orgs.filter(city_id=int(city_id))
        # 机构类别筛选
        catgory = request.GET.get('ct', '')
        if catgory:
            all_orgs = all_orgs.filter(catgory=catgory)
        # 获取页面机构数量
        org_nums = all_orgs.count()
        # 对课程机构进行分页
        try:
            page = request.GET.get('page', 1)
        except PageNotAnInteger:
            page = 1
        p = Paginator(all_orgs, 3, request=request)
        orgs = p.page(page)

        return render(request, 'org-list.html', {
            'all_orgs': orgs,
            'all_citys': all_citys,
            'org_nums': org_nums,
            'city_id': city_id,
            'catgory': catgory,
            'hot_orgs': hot_orgs
        })

配置前端页面

<ul>
				<li>
					<h2>机构类别</h2>
					<div class="cont">
                        <a href="?city={{ city_id }}"><span class="{% ifequal catgory '' %}active2{% endifequal %}">全部</span></a>

                            <a href="?ct=pxjg&city={{ city_id }}"><span class="{% ifequal catgory 'pxjg' %}active2{% endifequal %}">培训机构</span></a>

                            <a href="?ct=gx&city={{ city_id }}"><span class="{% ifequal catgory 'gx' %}active2{% endifequal %}">高校</span></a>

                            <a href="?ct=gr&city={{ city_id }}"><span class="{% ifequal catgory 'gr' %}active2{% endifequal %}">个人</span></a>

					</div>
				</li>
				<li>
					<h2>所在地区</h2>
					<div class="more">更多</div>
					<div class="cont">
                        <a href="?ct={{ catgory }}"><span class="{% ifequal city_id '' %}active2{% endifequal %}">全部</span></a>
                                {% for city in all_citys %}
                                    <a href="?city={{ city.id }}&ct={{ catgory }}"><span class="{% ifequal city_id city.id|stringformat:'i'%}active2{% endifequal %}">{{ city }}</span></a>
                                {% endfor %}

					</div>
				</li>
			</ul>



页面排序功能

<div class="head">
				<ul class="tab_header">
					<li class="{% if sort == '' %}active{% endif %}"><a href="?ct={{ catgory }}&city={{ city_id }}">全部</a> </li>
					<li class="{% if sort == 'students' %}active{% endif %}"><a href="?sort=students&ct={{ catgory }}&city={{ city_id }}">学习人数 ↓</a></li>
					<li class="{% if sort == 'courses' %}active{% endif %}"><a href="?sort=courses&ct={{ catgory }}&city={{ city_id }}">课程数 ↓</a></li>
				</ul>
			</div>

注意返回给前端页面


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