Django+xadmin打造在线教育平台（四）
目录
代码
教程
学习自慕课网-使用python3.x与Django2.0.1开发的在线教育平台
七、授课机构功能
7.1.模板继承
（1）创建母板
把org-list.html拷贝到templates目录下，新建base.html,剪切org-list.html内容到里面
再修改一下静态文件的地址（css、就是、image和media）
（2）机构首页路由
from organization.views import OrgView path('org_list/',OrgView.as_view(),name = 'org_list'),
（3）机构views
class OrgView(View): '''课程机构''' def get(self,request): return render(request,'org-list.html')
（4）org-list.html继承base
{#templates/org-list.html#}
{% extends 'base.html' %}
{% block title %}
课程机构列表
{% endblock %}
访问：http://127.0.0.1:8000/org_list/ 可以看到org_list页面
（5）修改base模板
把base中custom_bread和content两个block的内容剪切到org-list.html里面
base.html
org-list.html
7.2.添加城市和课程机构
（1）进xadmin后台添加城市
这里机构是静态固定不变的，所在地区是动态的，从数据库中获取得到的
（2）修改机构的models，添加一个机构类别字段
organization/models.py：
class CourseOrg(models.Model): ORG_CHOICES = ( ("pxjg", u"培训机构"), ("gx", u"高校"), ("gr", u"个人"), ) #添加字段 category = models.CharField(max_length=20, choices=ORG_CHOICES, verbose_name=u"机构类别", default="pxjg")
class CourseOrg(models.Model): ORG_CHOICES = ( ("pxjg", u"培训机构"), ("gx", u"高校"), ("gr", u"个人"), ) name = models.CharField('机构名称',max_length=50) desc = models.TextField('机构描述') category = models.CharField(max_length=20, choices=ORG_CHOICES, verbose_name=u"机构类别", default="pxjg") click_nums = models.IntegerField('点击数',default=0) fav_nums = models.IntegerField('收藏数',default=0) image = models.ImageField('logo',upload_to='org/%Y%m',max_length=100) address = models.CharField('机构地址',max_length=150,) city = models.ForeignKey(CityDict,verbose_name='所在城市',on_delete=models.CASCADE) add_time = models.DateTimeField(default=datetime.now) class Meta: verbose_name = '课程机构' verbose_name_plural = verbose_name def __str__(self): return self.name
添加后makemigrations-->>migrate
（3）添加机构
添加机构信息的时候要上传机构的图片
在项目目录下面新建一个目录“media”，用来存放上传的图片
setting中要配置我们把文件存放在哪个根目录之下
#settings.py # 设置上传文件的路径 MEDIA_URL = '/media/' MEDIA_ROOT = os.path.join(BASE_DIR,'media') #指定根目录
会跟upload里面拼接完整的路径
“/media/org/2018/月份/图片名字”
然后在后台添加十个机构
7.3.显示课程机构和城市
（1）写视图函数organization/views.py
class OrgView(View): '''课程机构''' def get(self,request): # 取出所有课程机构 all_orgs = CourseOrg.objects.all() org_onums = all_orgs.count() # 取出所有城市 all_citys = CityDict.objects.all() return render(request, "org-list.html", { "all_orgs": all_orgs, "all_citys": all_citys, 'org_onums':org_onums, })
（2）修改org-list.html
显示机构总共数量
显示城市
显示机构
然后还要做下面的设置
如何将image Field转换成图片地址
数据库中image以字符串格式保存的，是相对路径，直接取是取不出来的，必须补全路径
data-url="{{ MEDIA_URL }}{{ course_org.image }}"
MEDIA_URL = '/media/'，这个是之前settings中设置好了
要向使用{{ MEDIA_URL }}，要先在settings中TEMPLATES 里面添加media处理器：'django.core.context_processors.media'
然后也要添加处理图片相应路径的url
TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [os.path.join(BASE_DIR, 'templates')] , 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', #添加图片处理器，为了在课程列表中前面加上MEDIA_URL 'django.template.context_processors.media', ], }, }, ]
urls.py
from django.views.static import serve from MxOnline.settings import MEDIA_ROOT # 处理图片显示的url,使用Django自带serve,传入参数告诉它去哪个路径找，我们有配置好的路径MEDIAROOT re_path(r'^media/(?P<path>.*)', serve, {"document_root": MEDIA_ROOT })
四个地方
7.4.分页功能
使用 分页神器 django-pure-pagination 分页，github上面有介绍使用方法
（1）安装
pip install django-pure-pagination
（2）settings里面添加
INSTALLED_APPS = ( ... 'pure_pagination', )
（3）views中使用方法
class OrgView(View): '''课程机构''' def get(self, request): # 所有课程机构 all_orgs = CourseOrg.objects.all() # 有多少家机构 org_nums = all_orgs.count() # 所有城市 all_citys = CityDict.objects.all() # 对课程机构进行分页 # 尝试获取前台get请求传递过来的page参数 # 如果是不合法的配置参数默认返回第一页 try: page = request.GET.get('page', 1) except PageNotAnInteger: page = 1 # 这里指从allorg中取五个出来，每页显示5个 p = Paginator(all_orgs, 5, request=request) orgs = p.page(page) return render(request, "org-list.html", { "all_orgs": orgs, "all_citys": all_citys, "org_nums": org_nums, })
（4）修改org-list.html
这里变成 "all_orgs.object_list"
分页功能
<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>
改成每页显示2个列表，如下：
7.5.列表筛选功能
（1）城市列表筛选
- 点城市，筛选出对应的课程机构
- 默认“全部”是‘active’状态（绿色），如果点了某个城市，应该城市是‘active’状态
- 当用户点击city时，应该把city的id传到后台，然后后台在传到模板中，是的可以知道哪个城市被选中，然后加上‘’active‘’
后台处理city筛选
class OrgView(View): '''课程机构''' def get(self, request): # 所有课程机构 all_orgs = CourseOrg.objects.all() # 有多少家机构 org_nums = all_orgs.count() # 所有城市 all_citys = CityDict.objects.all() city_id = request.GET.get('city','') if city_id: all_orgs = all_orgs.filter(city_id=int(city_id)) # 对课程机构进行分页 # 尝试获取前台get请求传递过来的page参数 # 如果是不合法的配置参数默认返回第一页 try: page = request.GET.get('page', 1) except PageNotAnInteger: page = 1 # 这里指从allorg中取五个出来，每页显示5个 p = Paginator(all_orgs, 2, 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, })
前端页面
<h2>所在地区</h2> <div class="more">更多</div> <div class="cont"> <a href="?ct="><span class="{% ifequal city_id '' %}active2{% endifequal %}">全部</span></a> {% for city in all_citys %} <a href="?city={{ city.id }}"><span class="{% ifequal city.id|stringformat:'i' city_id %}active2{% endifequal %}">{{ city.name }}</span></a> {% endfor %} </div>
因为city.id是一个int类型，要转换成字符串，再作比较。
{% ifequal city_id '' %} 如果为空，说明没有city选中，则“全部”是“active”
（2）类别筛选
后台处理
# 类别筛选 category = request.GET.get('ct','') if category: all_orgs = all_orgs.filter(category=category) # 有多少家机构 org_nums = all_orgs.count()
把org_numsf放到后面，先筛选在统计数量
模板中
<h2>机构类别</h2> <div class="cont"> <a href="?city={{ city_id }}"><span class="{% ifequal category '' %}active2{% endifequal %}">全部</span></a> <a href="?ct=pxjg&city={{ city_id }}"><span class="{% ifequal category 'pxjg' %}active2{% endifequal %}">培训机构</span></a> <a href="?ct=gx&city={{ city_id }}"><span class="{% ifequal category 'gx' %}active2{% endifequal %}">高校</span></a> <a href="?ct=gr&city={{ city_id }}"><span class="{% ifequal category 'gr' %}active2{% endifequal %}">个人</span></a> </div>
<h2>所在地区</h2> <div class="more">更多</div> <div class="cont"> <a href="?ct={{ category }}"><span class="{% ifequal city_id '' %}active2{% endifequal %}">全部</span></a> {% for city in all_citys %} <a href="?city={{ city.id }}&ct={{ category }}"><span class="{% ifequal city_id city.id|stringformat:"i" %}active2{% endifequal %}">{{ city.name }}</span></a> {% endfor %} </div>
进行城市与分类的联动:
- 当选择全部类别的时候，就只通过当前城市id。
- 当选择全部城市的时候，就只通过当前目录id。
- 当两者都选的时候使用&连接。
（3）课程机构排名筛选
后台处理
按点击量排名，只取前三个
# 热门课程机构排名 hot_orgs = all_orgs.order_by('-click_nums')[:3]
模板中
<div class="right companyrank layout"> <div class="head">授课机构排名</div> {% for curent_org in hot_orgs %} <dl class="des"> <dt class="num fl">{{ foorloop.counter }}</dt> <dd> <a href="/company/2/"><h1>{{ curent_org.name }}</h1></a> <p>{{ curent_org.address }}</p> </dd> </dl> {% endfor %} </div>
循环时内置变量forloop.counter取当前循环到第几次
（4）学习人数和课程的筛选
在models中添加学习人数和课程数两个字段
students = models.IntegerField("学习人数",default=0) course_nums = models.IntegerField("课程数",default=0)
class CourseOrg(models.Model): ORG_CHOICES = ( ("pxjg", u"培训机构"), ("gx", u"高校"), ("gr", u"个人"), ) name = models.CharField('机构名称',max_length=50) desc = models.TextField('机构描述') category = models.CharField(max_length=20, choices=ORG_CHOICES, verbose_name=u"机构类别", default="pxjg") click_nums = models.IntegerField('点击数',default=0) fav_nums = models.IntegerField('收藏数',default=0) students = models.IntegerField("学习人数",default=0) course_nums = models.IntegerField("课程数",default=0) image = models.ImageField('logo',upload_to='org/%Y/%m',max_length=100) address = models.CharField('机构地址',max_length=150,) city = models.ForeignKey(CityDict,verbose_name='所在城市',on_delete=models.CASCADE) add_time = models.DateTimeField(default=datetime.now) class Meta: verbose_name = '课程机构' verbose_name_plural = verbose_name def __str__(self): return self.name
migrate到数据库
后台处理
# 学习人数和课程数筛选 sort = request.GET.get('sort', "") if sort: if sort == "students": all_orgs = all_orgs.order_by("-students") elif sort == "courses": all_orgs = all_orgs.order_by("-course_nums")
class OrgView(View): '''课程机构''' def get(self, request): # 所有课程机构 all_orgs = CourseOrg.objects.all() # 所有城市 all_citys = CityDict.objects.all() # 城市筛选 city_id = request.GET.get('city','') if city_id: all_orgs = all_orgs.filter(city_id=int(city_id)) # 类别筛选 category = request.GET.get('ct','') if category: all_orgs = all_orgs.filter(category=category) # 热门课程机构排名 hot_orgs = all_orgs.order_by('-click_nums')[:3] # 学习人数和课程数筛选 sort = request.GET.get('sort', "") if sort: if sort == "students": all_orgs = all_orgs.order_by("-students") elif sort == "courses": all_orgs = all_orgs.order_by("-course_nums") # 有多少家机构 org_nums = all_orgs.count() # 对课程机构进行分页 # 尝试获取前台get请求传递过来的page参数 # 如果是不合法的配置参数默认返回第一页 try: page = request.GET.get('page', 1) except PageNotAnInteger: page = 1 # 这里指从allorg中取五个出来，每页显示5个 p = Paginator(all_orgs, 2, 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, "category": category, 'hot_orgs':hot_orgs, 'sort':sort, })
前端
<div class="head"> <ul class="tab_header"> <li class="{% if sort == '' %}active{% endif %}"><a href="?sort=students&ct={{ category }}&city={{ city_id }}">全部</a></li> <li class="{% if sort == 'students' %}active{% endif %}"><a href="?sort=students&ct={{ category }}&city={{ city_id }}">学习人数 ↓</a></li> <li class="{% if sort == 'courses' %}active{% endif %}"><a href="?sort=courses&ct={{ category }}&city={{ city_id }}">课程数 ↓</a></li> </ul> </div>
7.6.提交我要学习咨询
（1）用ModelForm来实现
在organazition目录下创建forms.py文件
# organization/forms.py from django import forms from operation.models import UserAsk class UserAskForm(forms.Form): '''我要咨询''' class Meta: model = UserAsk fields = ['name','mobile','course_name']
（2）include路由分发
# MxOnline/urls.py import xadmin from django.urls import path,include,re_path from django.views.generic import TemplateView from users.views import LoginView,RegisterView,ActiveUserView,ForgetPwdView,ResetView,ModifyPwdView from organization.views import OrgView from django.views.static import serve from MxOnline.settings import MEDIA_ROOT urlpatterns = [ path('xadmin/', xadmin.site.urls), path('', TemplateView.as_view(template_name='index.html'),name='index'), path('login/',LoginView.as_view(),name = 'login'), path('register/',RegisterView.as_view(),name = 'register'), path('captcha/',include('captcha.urls')), re_path('active/(?P<active_code>.*)/',ActiveUserView.as_view(),name='user_active'), path('forget/',ForgetPwdView.as_view(),name='forget_pwd'), re_path('reset/(?P<active_code>.*)/', ResetView.as_view(), name='reset_pwd'), path('modify_pwd/', ModifyPwdView.as_view(), name='modify_pwd'), path('org_list/',OrgView.as_view(),name = 'org_list'), # 处理图片显示的url,使用Django自带serve,传入参数告诉它去哪个路径找，我们有配置好的路径MEDIAROOT re_path(r'^media/(?P<path>.*)', serve, {"document_root": MEDIA_ROOT }), ]
删掉org_list的那个路由，改成include
path("org/", include('organization.urls', namespace="org")),
使用命名空间防止重复
然后在organization/urls.py中添加
# organization/urls.py from organization.views import OrgView from django.urls import path,re_path # 要写上app的名字 app_name = "organization" urlpatterns = [ path('list/',OrgView.as_view(),name='org_list'), ]
html中使用命名空间的方式：
修改base.html中“课程机构的链接”
<li class="active" ><a href="{% url 'org:org_list' %}">授课机构</a></li>
（3）视图函数
from django.http import HttpResponse from .forms import UserAskForm class AddUserAskView(View): """ 用户添加咨询 """ def post(self, request): userask_form = UserAskForm(request.POST) if userask_form.is_valid(): user_ask = userask_form.save(commit=True) # 如果保存成功,返回json字符串,后面content type是告诉浏览器返回的数据类型 return HttpResponse('{"status":"success"}', content_type='application/json') else: # 如果保存失败，返回json字符串,并将form的报错信息通过msg传递到前端 return HttpResponse('{"status":"fail", "msg":"添加出错"}', content_type='application/json')
# organization/views.py from django.shortcuts import render from django.views.generic import View from .models import CourseOrg,CityDict from pure_pagination import Paginator, EmptyPage, PageNotAnInteger from django.http import HttpResponse from .forms import UserAskForm class OrgView(View): '''课程机构''' def get(self, request): # 所有课程机构 all_orgs = CourseOrg.objects.all() # 所有城市 all_citys = CityDict.objects.all() # 城市筛选 city_id = request.GET.get('city','') if city_id: all_orgs = all_orgs.filter(city_id=int(city_id)) # 类别筛选 category = request.GET.get('ct','') if category: all_orgs = all_orgs.filter(category=category) # 热门课程机构排名 hot_orgs = all_orgs.order_by('-click_nums')[:3] # 学习人数和课程数筛选 sort = request.GET.get('sort', "") if sort: if sort == "students": all_orgs = all_orgs.order_by("-students") elif sort == "courses": all_orgs = all_orgs.order_by("-course_nums") # 有多少家机构 org_nums = all_orgs.count() # 对课程机构进行分页 # 尝试获取前台get请求传递过来的page参数 # 如果是不合法的配置参数默认返回第一页 try: page = request.GET.get('page', 1) except PageNotAnInteger: page = 1 # 这里指从allorg中取五个出来，每页显示5个 p = Paginator(all_orgs, 2, 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, "category": category, 'hot_orgs':hot_orgs, 'sort':sort, }) class AddUserAskView(View): """ 用户添加咨询 """ def post(self, request): userask_form = UserAskForm(request.POST) if userask_form.is_valid(): user_ask = userask_form.save(commit=True) # 如果保存成功,返回json字符串,后面content type是告诉浏览器返回的数据类型 return HttpResponse('{"status":"success"}', content_type='application/json') else: # 如果保存失败，返回json字符串,并将form的报错信息通过msg传递到前端 return HttpResponse('{"status":"fail", "msg":"添加出错"}', content_type='application/json')
这里要用到Ajax提交，不会对页面整体刷新，应该给前端返回一个Json数据
HttpResponse可以指定传递到前端的数据类型
（4）配置url
# organization/urls.py from organization.views import OrgView,AddUserAskView from django.urls import path,re_path # 要写上app的名字 app_name = "organization" urlpatterns = [ path('list/',OrgView.as_view(),name='org_list'), path('add_ask/', AddUserAskView.as_view(), name="add_ask"), ]
（5）在ModelForm中自定义一个手机号验证的方法
# organization/forms.py import re from django import forms from operation.models import UserAsk class UserAskForm(forms.ModelForm): class Meta: model = UserAsk fields = ['name', 'mobile', 'course_name'] def clean_mobile(self): """ 验证手机号码是否合法 """ mobile = self.cleaned_data['mobile'] REGEX_MOBILE = "^1[358]\d{9}$|^147\d{8}$|176\d{8}$" p = re.compile(REGEX_MOBILE) if p.match(mobile): return mobile else: raise forms.ValidationError(u"手机号码非法", code="mobile_invalid")
（6）模板中使用Ajax方式提交
org-list.html
<div class="right companyright"> <div class="head">我要学习</div> <form class="rightform" id="jsStayForm"> <div> <img src="{% static 'images/rightform1.png' %}"/> <input type="text" name="name" id="companyName" placeholder="名字" maxlength="25"/> </div> <div> <img src="{% static 'images/rightform2.png' %}"/> <input type="text" name="mobile" id="companyMobile" placeholder="联系电话"/> </div> <div> <img src="{% static '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 >"/> {% csrf_token %} </form> </div>
<script> $(function () { $('#jsStayBtn').on('click', function () { $.ajax({ cache: false, type: "POST", url: "{% 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>
{#templates/org-list.html#} {% extends 'base.html' %} {% load staticfiles %} {% block title %}课程机构列表{% endblock %} {% 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={{ city_id }}"><span class="{% ifequal category '' %}active2{% endifequal %}">全部</span></a> <a href="?ct=pxjg&city={{ city_id }}"><span class="{% ifequal category 'pxjg' %}active2{% endifequal %}">培训机构</span></a> <a href="?ct=gx&city={{ city_id }}"><span class="{% ifequal category 'gx' %}active2{% endifequal %}">高校</span></a> <a href="?ct=gr&city={{ city_id }}"><span class="{% ifequal category '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={{ category }}"><span class="{% ifequal city_id '' %}active2{% endifequal %}">全部</span></a> {% for city in all_citys %} <a href="?city={{ city.id }}&ct={{ category }}"><span class="{% ifequal city_id city.id|stringformat:"i" %}active2{% endifequal %}">{{ city.name }}</span></a> {% endfor %} </div> </li> </ul> </div> <div class="all">共<span class="key">{{ org_nums }}</span>家</div> <div class="butler_list company list"> <div class="layout"> <div class="head"> <ul class="tab_header"> <li class="{% if sort == '' %}active{% endif %}"><a href="?sort=students&ct={{ category }}&city={{ city_id }}">全部</a></li> <li class="{% if sort == 'students' %}active{% endif %}"><a href="?sort=students&ct={{ category }}&city={{ city_id }}">学习人数 ↓</a></li> <li class="{% if sort == 'courses' %}active{% endif %}"><a href="?sort=courses&ct={{ category }}&city={{ city_id }}">课程数 ↓</a></li> </ul> </div> {% for course_org in all_orgs.object_list %} <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 %} </div> <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> </div> </div> <div class="right companyright"> <div class="head">我要学习</div> <form class="rightform" id="jsStayForm"> <div> <img src="{% static 'images/rightform1.png' %}"/> <input type="text" name="name" id="companyName" placeholder="名字" maxlength="25"/> </div> <div> <img src="{% static 'images/rightform2.png' %}"/> <input type="text" name="mobile" id="companyMobile" placeholder="联系电话"/> </div> <div> <img src="{% static '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 >"/> {% csrf_token %} </form> </div> <div class="right companyrank layout"> <div class="head">授课机构排名</div> {% for curent_org in hot_orgs %} <dl class="des"> <dt class="num fl">{{ foorloop.counter }}</dt> <dd> <a href="/company/2/"><h1>{{ curent_org.name }}</h1></a> <p>{{ curent_org.address }}</p> </dd> </dl> {% endfor %} </div> </div> </section> {% endblock %} <script> $(function () { $('#jsStayBtn').on('click', function () { $.ajax({ cache: false, type: "POST", url: "{% 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>
Ajax代码说明：
- 第一行表示：其它代码执行完再执行
- 给“立即咨询”按钮绑定click事件，点击后执行function()函数里面的代码
- cache:false 这个参数默认True，表示缓存，这里改为false，表示不用缓存
- type：post 以post方式发送数据
- url：把请求发送到哪个url
- data:发送到服务器的数据
- async:ture 表示异步发送
- success:请求成功时执行的回调函数，data是服务器返回过来的数据
- 因为后台返回的数据是{"status’:"success"}或者{"status’:"fail"},这里做个判断
- 如果是“success”，则把提交表单里面的数据清空，如果是“fail”，显示错误信息
提交数据不合法时
合法时,提示成功信息，数据保存到数据库
7.7.机构首页
（1）给courses添加一个外键
from organization.models import CourseOrg course_org = models.ForeignKey(CourseOrg, on_delete=models.CASCADE, verbose_name="所属机构", null=True, blank=True)
# course/models.py from datetime import datetime from django.db import models from organization.models import CourseOrg class Course(models.Model): DEGREE_CHOICES = ( ("cj", "初级"), ("zj", "中级"), ("gj", "高级") ) name = models.CharField("课程名",max_length=50) desc = models.CharField("课程描述",max_length=300) detail = models.TextField("课程详情") degree = models.CharField('难度',choices=DEGREE_CHOICES, max_length=2) learn_times = models.IntegerField("学习时长(分钟数)",default=0) students = models.IntegerField("学习人数",default=0) fav_nums = models.IntegerField("收藏人数",default=0) image = models.ImageField("封面图",upload_to="courses/%Y/%m",max_length=100) click_nums = models.IntegerField("点击数",default=0) add_time = models.DateTimeField("添加时间",default=datetime.now,) course_org = models.ForeignKey(CourseOrg, on_delete=models.CASCADE, verbose_name="所属机构", null=True, blank=True) class Meta: verbose_name = "课程" verbose_name_plural = verbose_name def __str__(self): return self.name
在后台添加课程和讲师
（2）模板
把课程机构页面的四个文件拷贝到templates目录下
新建一个模板，命名为“org_base.html”,复制org-detail-homepage.html的内容到里面
添加block，修改静态文件路径
{#templates/org_base.html#} {% load staticfiles %} <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="renderer" content="webkit"> <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" > <title>{% block title %}机构首页{% 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' %}"> <link rel="stylesheet" type="text/css" href="{% static 'js/plugins/queryCity/css/cityLayout.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 headerwrap2"> <header> <div class="header2 header"> <div class="top"> <div class="wp"> <div class="fl"> <p>联系方式：<b>3333333333</b></p> </div> <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 companyheader"> <div class="wp"> <img class="fl" style="width: 112px;height: 103px" src="{% static 'media/org/2016/11/imooc.png' %}"/> <div class="head fl"> <h1> 慕课网 <img src="{% static 'images/authentication.png' %}"/> <img src="{% static 'images/gold.png' %}"/> </h1> <p class="fl"> <span class="fl" style="margin-top:8px;color:#848484;">推荐指数： </span> <span class="precision company-credit" data-star-scope="5.0"></span> <span class="key">5.0</span> </p> </div> <div class="btn fr collectionbtn notlogin "data-favid="22" data-fav-type="1"> 收藏 </div> </div> </div> </div> </header> </section> <section> <div class="wp"> <ul class="crumbs"> <li><a href="index.html">首页</a>></li> <li><a href="org-list.html">课程机构</a>></li> <li>{% block page_path %}机构首页{% endblock %}</li> </ul> </div> </section> <section> <div class="wp list personal_list comp"> <div class="left"> <ul> <li class="active2"><a href="org-detail-homepage.html">机构首页</a></li> <li class=""><a href="org-detail-course.html">机构课程</a></li> <li class=""><a href="org-detail-desc.html">机构介绍</a></li> <li class=""><a href="org-detail-teachers.html">机构讲师</a></li> </ul> </div> {% block right_form %} {% endblock %} <div class="head"> <h1>机构介绍</h1> <a class="green fr more" href="org-detail-desc.html">查看更多 > </a> </div> <div class="cont"> <p> </p><h1 class="ue_t" label="Title center" name="tc" style="border-bottom-color:#cccccc;border-bottom-width:2px;border-bottom-style:solid;padding:0px 4px 0px 0px;text-align:center;margin:0px 0px 20px;"><span style="color:#c0504d;">[键入文档标题]</span></h1><p style="text-align:center;"><strong class="ue_t">[键入文档副标题]</strong></p><h3><span class="ue_t" style="font-family:幼圆">[标题 1]</span></h3><p class="ue_t" style="text-indent:2em;">对于“插入”选项卡上的库，在设计时都充分考虑了其中的项与文档整体外观的协调性。 您可以使用这些库来插入表格、页眉、页脚、列表、封面以及其他文档构建基块。 您创建的图片、图表或关系图也将与当前的文档外观协调一致。</p><p class="ue_t" style="text-indent:2em;"><img src="../media/courses/ueditor/57aa86a0000145c512000460_20161210234050_865.jpg" title="" alt="57aa86a0000145c512000460.jpg"/> </p><h3><span class="ue_t" style="font-family:幼圆">[标题 2]</span></h3><p><img src="http://api.map.baidu.com/staticimage?center=116.410899,39.863624&zoom=11&width=530&height=340&markers=116.404,39.915" width="530" height="340"/> </p><p class="ue_t" style="text-indent:2em;">在“开始”选项卡上，通过从快速样式库中为所选文本选择一种外观，您可以方便地更改文档中所选文本的格式。 您还可以使用“开始”选项卡上的其他控件来直接设置文本格式。大多数控件都允许您选择是使用当前主题外观，还是使用某种直接指定的格式。</p><h3><span class="ue_t" style="font-family:幼圆">[标题 3]</span></h3><p>2016-12-10</p><p class="ue_t">对于“插入”选项卡上的库，在设计时都充分考虑了其中的项与文档整体外观的协调性。 您可以使用这些库来插入表格、页眉、页脚、列表、封面以及其他文档构建基块。 您创建的图片、图表或关系图也将与当前的文档外观协调一致。</p><p class="ue_t"><br/> </p><p><br/></p><p><br/></p><a href="/company/desc/22/"><span class="green">[查看更多]</span></a></div> </div> </section> <!--sidebar start--> <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> <!--sidebar end--> <!--header start--> </div> <!--弹出省省市--> <script src="{% static 'js/selectUi.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 type="text/javascript" src="{% static 'js/plugins/jquery.raty.js' %}"></script> <script type="text/javascript"> //收藏分享 //收藏分享 function add_fav(current_elem, fav_id, fav_type){ $.ajax({ cache: false, type: "POST", url:"/org/add_fav/", data:{'fav_id':fav_id, 'fav_type':fav_type}, async: true, beforeSend:function(xhr, settings){ xhr.setRequestHeader("X-CSRFToken", "5I2SlleZJOMUX9QbwYLUIAOshdrdpRcy"); }, success: function(data) { if(data.status == 'fail'){ if(data.msg == '用户未登录'){ window.location.href="login.html"; }else{ alert(data.msg) } }else if(data.status == 'success'){ current_elem.text(data.msg) } }, }); } $('.collectionbtn').on('click', function(){ add_fav($(this), 1, 2); }); $(function(){ var $precision = $('.precision'), score = $precision.attr('data-star-scope'), option = { half : true, path : '../images/', precision : true, size : 24, starOff : 'g_star.png', starOn : 'r_star.png', starHalf : 'h_star.png', hints : ['极差', '差', '一般', '好评', '非常满意'], noRatedMsg : '暂时还未获得评价！', readOnly : true, score : score }; $precision.raty(option); $('.jsFavBtn').on('click', function(){ var type = $(this).attr('data-fav-type'); if(type == '1'){ favPraise($(this), 'fav' ,1 , '收藏'); }else if(type == '3'){ favPraise($(this), 'fav' ,3 ); }else if(type == '11'){ favPraise($(this), 'pra', 1); }else if(type == '4'){ favPraise($(this), 'fav' ,4 ); } }); }) </script> <script type="text/javascript"> $(function() { $('.recordbtn1').click(function(){ $('.recordbox1').show(); }); $('.recordbtn2').click(function(){ $('.recordbox2').show(); }); $('.imgslide').unslider({ speed: 500, // The speed to animate each slide (in milliseconds) delay: 3000, // The delay between slide animations (in milliseconds) complete: function() {}, // A function that gets called after every slide animation keys: true, // Enable keyboard (left, right) arrow shortcuts dots: true, // Display dot navigation fluid: false // Support responsive design. May break non-responsive designs }); var unslider = $('.imgslide').unslider(); $('.unslider-arrow').click(function() { var fn = this.className.split(' ')[1]; unslider.data('unslider')[fn](); }); }); </script> </body> </html>
（3）org-detail-homepage.html继承模板
把org_base中的三个“right”剪切到home里面
（4）home页面的url
from .views import OrgHomeView re_path('home/(?P<org_id>\d+)/', OrgHomeView.as_view(), name="org_home"),
（5）后端逻辑处理
class OrgHomeView(View): '''机构首页''' def get(self,request,org_id): # 根据id找到课程机构 course_org = CourseOrg.objects.get(id=int(org_id)) # 反向查询到课程机构的所有课程和老师 all_courses = course_org.course_set.all()[:4] all_teacher = course_org.teacher_set.all()[:2] return render(request,'org-detail-homepage.html',{ 'course_org':course_org, 'all_courses':all_courses, 'all_teacher':all_teacher, })
（6）显示全部课程
<div class="brief group_list"> {% for course in all_courses %} <div class="module1_5 box"> <a href="course-detail.html"><img width="214" src="{{ MEDIA_URL }}{{ course.image }}"/></a> <div class="des"> <a href="course-detail.html"><h2>{{ course.name }}</h2></a> <span class="fl">课时：<i class="key">{{ course.learn_times }}</i></span> <span class="fr">参加人数：{{ course.students }}</span> </div> <div class="bottom"> <span class="fl">{{ course.course_org.name }}</span> <span class="star fr notlogin " data-favid="13" data-fav-type="4"> {{ course.fav_nums }} </span> </div> </div> {% endfor %} </div>
在org-list.html中修改链接，点击机构，跳到对应机构主页
（6）修改org-base.html
（7）为teacher添加一个图形字段
image = models.ImageField( default= '', upload_to="teacher/%Y/%m", verbose_name="头像", max_length=100)
（8）显示机构教师
（9）显示机构详情
机构 首页：
7.8.机构课程
（1）模板文件
把org-detail-course.html中不同的地方（right）取出来
（2）添加url
re_path('course/(?P<org_id>\d+)/', OrgCourseView.as_view(), name="org_course"),
（3）views.py
class OrgCourseView(View): """ 机构课程列表页 """ def get(self, request, org_id): # 根据id取到课程机构 course_org = CourseOrg.objects.get(id= int(org_id)) # 通过课程机构找到课程。内建的变量，找到指向这个字段的外键引用 all_courses = course_org.course_set.all() return render(request, 'org-detail-course.html',{ 'all_courses':all_courses, 'course_org': course_org, })
（4）修改org-base.html中left的链接
（5）显示机构课程，修改org-detail-course.html
<div class="brief group_list"> {% for course in all_courses %} <div class="module1_5 box"> <a class="comp-img-box" href="course-detail.html"> <img width="214" height="195" src="{{ MEDIA_URL }}{{ course.image }}"/> </a> <div class="des"> <a href="course-detail.html"><h2>{{ course.name }}</h2></a> <span class="fl">课时：<i class="key">{{ course.learn_times }}</i></span> <span class="fr">学习人数{{ course.students }}</span> </div> <div class="bottom"> <span class="fl">{{ course.course_org.name }}</span> <span class="star fr notlogin " data-favid="13" data-fav-type="4"> {{ course.fav_nums }} </span> </div> </div> {% endfor %}
点“机构课程”，看有哪些课程
（6）左侧“active”状态修改
因为现在没有值能判断当前是哪个页面。所以在后台传个current page参数
修改org_base.html
<div class="left"> <ul> <li class="{% ifequal current_page 'home' %}active2{% endifequal %}"><a href="{% url 'org:org_home' course_org.id %}">机构首页</a></li> <li class="{% ifequal current_page 'course' %}active2{% endifequal %}"><a href="{% url 'org:org_course' course_org.id %}">机构课程</a></li> <li class="{% ifequal current_page 'desc' %}active2{% endifequal %}"><a href="org-detail-desc.html">机构介绍</a></li> <li class="{% ifequal current_page 'teacher' %}active2{% endifequal %}"><a href="org-detail-teachers.html">机构讲师</a></li> </ul> </div>
修改views，传个current_page参数到前端，可以知道当前是哪个被激活状态
class OrgHomeView(View): '''机构首页''' def get(self,request,org_id): current_page = 'home' # 根据id找到课程机构 course_org = CourseOrg.objects.get(id=int(org_id)) # 反向查询到课程机构的所有课程和老师 all_courses = course_org.course_set.all()[:4] all_teacher = course_org.teacher_set.all()[:2] return render(request,'org-detail-homepage.html',{ 'course_org':course_org, 'all_courses':all_courses, 'all_teacher':all_teacher, 'current_page':current_page, })
class OrgCourseView(View): """ 机构课程列表页 """ def get(self, request, org_id): current_page = 'course' # 根据id取到课程机构 course_org = CourseOrg.objects.get(id= int(org_id)) # 通过课程机构找到课程。内建的变量，找到指向这个字段的外键引用 all_courses = course_org.course_set.all() return render(request, 'org-detail-course.html',{ 'all_courses':all_courses, 'course_org': course_org, 'current_page':current_page, })
7.9.机构介绍
（1）url
re_path('desc/(?P<org_id>\d+)/', OrgDescView.as_view(), name="org_desc"),
（2）views
class OrgDescView(View): '''机构介绍页''' def get(self, request, org_id): current_page = 'desc' # 根据id取到课程机构 course_org = CourseOrg.objects.get(id= int(org_id)) return render(request, 'org-detail-desc.html',{ 'course_org': course_org, 'current_page':current_page, })
7.10.机构讲师
（1）url
re_path('teacher/(?P<org_id>\d+)/', OrgTeacherView.as_view(), name="org_teacher"),
（2）views
class OrgTeacherView(View): """ 机构教师页 """ def get(self, request, org_id): current_page = 'teacher' course_org = CourseOrg.objects.get(id= int(org_id)) all_teacher = course_org.teacher_set.all() return render(request, 'org-detail-teachers.html',{ 'all_teacher':all_teacher, 'course_org': course_org, 'current_page':current_page, })
（3）org-detail-teachers.html
{% extends 'org_base.html' %} {% load staticfiles %} <title>{% block title %}机构教师页--新东方{% endblock %}</title> {% block right_form %} <div class="right companycenter layout" > <div class="head"> <h1>机构讲师</h1> </div> <div class="messagelist"> <div class=" butler_list butler-fav-box"> {% for teacher in all_teacher %} <dl class="des users"> <dt> <a href=""> <img width="100" height="100" class="scrollLoading" data-url="{{ MEDIA_URL }}{{ teacher.image }}" src="{{ MEDIA_URL }}{{ teacher.image }}"/> </a> </dt> <dd> <h1> <a href=""> {{ teacher.name }}<span class="key">已认证</span> </a> </h1> <ul class="cont clearfix"> <li class="time">工作年限：<span>{{ teacher.work_years }}</span></li> <li class="c7">课程数：<span>3</span></li> </ul> </dd> </dl> {% endfor %} </div> </div> </div> {% endblock %}
(4)org-bae.html中left
<ul> <li class="{% ifequal current_page 'home' %}active2{% endifequal %}"><a href="{% url 'org:org_home' course_org.id %}">机构首页</a></li> <li class="{% ifequal current_page 'course' %}active2{% endifequal %}"><a href="{% url 'org:org_course' course_org.id %}">机构课程</a></li> <li class="{% ifequal current_page 'desc' %}active2{% endifequal %}"><a href="{% url 'org:org_desc' course_org.id %}">机构介绍</a></li> <li class="{% ifequal current_page 'teacher' %}active2{% endifequal %}"><a href="{% url 'org:org_teacher' course_org.id %}">机构讲师</a></li> </ul>
（5）修改面包屑，点机构课程应该显示机构课程
base.html
然后分别在其它四个页面中重载page_path
其它三个方法一样
7.11.课程机构收藏功能
（1）url
path('add_fav/', AddFavView.as_view(), name="add_fav"),
# organization/urls.py from organization.views import OrgView,AddUserAskView from django.urls import path,re_path from .views import OrgHomeView,OrgCourseView,OrgDescView,OrgTeacherView,AddFavView # 要写上app的名字 app_name = "organization" urlpatterns = [ path('list/',OrgView.as_view(),name='org_list'), path('add_ask/', AddUserAskView.as_view(), name="add_ask"), re_path('home/(?P<org_id>\d+)/', OrgHomeView.as_view(), name="org_home"), re_path('course/(?P<org_id>\d+)/', OrgCourseView.as_view(), name="org_course"), re_path('desc/(?P<org_id>\d+)/', OrgDescView.as_view(), name="org_desc"), re_path('teacher/(?P<org_id>\d+)/', OrgTeacherView.as_view(), name="org_teacher"), path('add_fav/', AddFavView.as_view(), name="add_fav"), ]
# MxOnline/urls.py import xadmin from django.urls import path,include,re_path from django.views.generic import TemplateView from users.views import LoginView,RegisterView,ActiveUserView,ForgetPwdView,ResetView,ModifyPwdView from organization.views import OrgView from django.views.static import serve from MxOnline.settings import MEDIA_ROOT urlpatterns = [ path('xadmin/', xadmin.site.urls), path('', TemplateView.as_view(template_name='index.html'),name='index'), path('login/',LoginView.as_view(),name = 'login'), path('register/',RegisterView.as_view(),name = 'register'), path('captcha/',include('captcha.urls')), re_path('active/(?P<active_code>.*)/',ActiveUserView.as_view(),name='user_active'), path('forget/',ForgetPwdView.as_view(),name='forget_pwd'), re_path('reset/(?P<active_code>.*)/', ResetView.as_view(), name='reset_pwd'), path('modify_pwd/', ModifyPwdView.as_view(), name='modify_pwd'), path("org/", include('organization.urls', namespace="org")), # 处理图片显示的url,使用Django自带serve,传入参数告诉它去哪个路径找，我们有配置好的路径MEDIAROOT re_path(r'^media/(?P<path>.*)', serve, {"document_root": MEDIA_ROOT }), ]
（2）后台处理
class AddFavView(View): """ 用户收藏和取消收藏 """ def post(self, request): id = request.POST.get('fav_id', 0) # 防止后边int(fav_id)时出错 type = request.POST.get('fav_type', 0) # 防止int(fav_type)出错 if not request.user.is_authenticated: # 未登录时返回json提示未登录，跳转到登录页面是在ajax中做的 return HttpResponse('{"status":"fail", "msg":"用户未登录"}', content_type='application/json') exist_record = UserFavorite.objects.filter(user=request.user, fav_id=int(id), fav_type=int(type)) if exist_record: # 如果记录已经存在，表示用户取消收藏 exist_record.delete() return HttpResponse('{"status":"success", "msg":"收藏"}', content_type='application/json') else: user_fav = UserFavorite() if int(id) > 0 and int(type) > 0: user_fav.user = request.user user_fav.fav_id = int(id) user_fav.fav_type = int(type) user_fav.save() return HttpResponse('{"status":"success", "msg":"已收藏"}', content_type='application/json') else: return HttpResponse('{"status":"fail", "msg":"收藏出错"}', content_type='application/json')
（3）前端Ajax
Ajax放在org_base.html里面
<script type="text/javascript">
//收藏分享
//收藏分享
function add_fav(current_elem, fav_id, fav_type){
$.ajax({
cache: false,
type: "POST",
url:"{% url 'org:add_fav' %}",
data:{'fav_id':fav_id, 'fav_type':fav_type},
async: true,
beforeSend:function(xhr, settings){
xhr.setRequestHeader("X-CSRFToken", "{{ csrf_token }}");
},
success: function(data) {
if(data.status == 'fail'){
if(data.msg == '用户未登录'){
window.location.href="/login/";
}else{
alert(data.msg)
}
}else if(data.status == 'success'){
current_elem.text(data.msg)
}
},
});
}
$('.collectionbtn').on('click', function(){
add_fav($(this), {{ course_org.id }}, 2);
});
访问页面点右上角的“收藏”，可以发现正常工作了
可以在数据库中看到用户的收藏
（4）但是还有个问题就是 ，刷新页面后，“已收藏”就变成“收藏”，是因为在返回页面的时候，没有判断收藏状态
所有要在views里面加个判断
# 判断收藏状态 has_fav = False if request.user.is_authenticated: if UserFavorite.objects.filter(user=request.user, fav_id=course_org.id, fav_type=2): has_fav = True
四个页面都加上这个判断
# organization/views.py from django.shortcuts import render from django.views.generic import View from .models import CourseOrg,CityDict from pure_pagination import Paginator, EmptyPage, PageNotAnInteger from django.http import HttpResponse from .forms import UserAskForm from operation.models import UserFavorite from django.contrib.auth import authenticate class OrgView(View): '''课程机构''' def get(self, request): # 所有课程机构 all_orgs = CourseOrg.objects.all() # 所有城市 all_citys = CityDict.objects.all() # 城市筛选 city_id = request.GET.get('city','') if city_id: all_orgs = all_orgs.filter(city_id=int(city_id)) # 类别筛选 category = request.GET.get('ct','') if category: all_orgs = all_orgs.filter(category=category) # 热门课程机构排名 hot_orgs = all_orgs.order_by('-click_nums')[:3] # 学习人数和课程数筛选 sort = request.GET.get('sort', "") if sort: if sort == "students": all_orgs = all_orgs.order_by("-students") elif sort == "courses": all_orgs = all_orgs.order_by("-course_nums") # 有多少家机构 org_nums = all_orgs.count() # 对课程机构进行分页 # 尝试获取前台get请求传递过来的page参数 # 如果是不合法的配置参数默认返回第一页 try: page = request.GET.get('page', 1) except PageNotAnInteger: page = 1 # 这里指从allorg中取五个出来，每页显示5个 p = Paginator(all_orgs, 2, 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, "category": category, 'hot_orgs':hot_orgs, 'sort':sort, }) class AddUserAskView(View): """ 用户添加咨询 """ def post(self, request): userask_form = UserAskForm(request.POST) if userask_form.is_valid(): user_ask = userask_form.save(commit=True) # 如果保存成功,返回json字符串,后面content type是告诉浏览器返回的数据类型 return HttpResponse('{"status":"success"}', content_type='application/json') else: # 如果保存失败，返回json字符串,并将form的报错信息通过msg传递到前端 return HttpResponse('{"status":"fail", "msg":"添加出错"}', content_type='application/json') class OrgHomeView(View): '''机构首页''' def get(self,request,org_id): current_page = 'home' # 根据id找到课程机构 course_org = CourseOrg.objects.get(id=int(org_id)) # 判断收藏状态 has_fav = False if request.user.is_authenticated: if UserFavorite.objects.filter(user=request.user, fav_id=course_org.id, fav_type=2): has_fav = True # 反向查询到课程机构的所有课程和老师 all_courses = course_org.course_set.all()[:4] all_teacher = course_org.teacher_set.all()[:2] return render(request,'org-detail-homepage.html',{ 'course_org':course_org, 'all_courses':all_courses, 'all_teacher':all_teacher, 'current_page':current_page, 'has_fav':has_fav, }) class OrgCourseView(View): """ 机构课程列表页 """ def get(self, request, org_id): current_page = 'course' # 根据id取到课程机构 course_org = CourseOrg.objects.get(id= int(org_id)) # 通过课程机构找到课程。内建的变量，找到指向这个字段的外键引用 all_courses = course_org.course_set.all() # 判断收藏状态 has_fav = False if request.user.is_authenticated: if UserFavorite.objects.filter(user=request.user, fav_id=course_org.id, fav_type=2): has_fav = True return render(request, 'org-detail-course.html',{ 'all_courses':all_courses, 'course_org': course_org, 'current_page':current_page, 'has_fav': has_fav, }) class OrgDescView(View): '''机构介绍页''' def get(self, request, org_id): current_page = 'desc' # 根据id取到课程机构 course_org = CourseOrg.objects.get(id= int(org_id)) # 判断收藏状态 has_fav = False if request.user.is_authenticated: if UserFavorite.objects.filter(user=request.user, fav_id=course_org.id, fav_type=2): has_fav = True return render(request, 'org-detail-desc.html',{ 'course_org': course_org, 'current_page':current_page, 'has_fav': has_fav, }) class OrgTeacherView(View): """ 机构教师页 """ def get(self, request, org_id): current_page = 'teacher' course_org = CourseOrg.objects.get(id= int(org_id)) all_teacher = course_org.teacher_set.all() # 判断收藏状态 has_fav = False if request.user.is_authenticated: if UserFavorite.objects.filter(user=request.user, fav_id=course_org.id, fav_type=2): has_fav = True return render(request, 'org-detail-teachers.html',{ 'all_teacher':all_teacher, 'course_org': course_org, 'current_page':current_page, 'has_fav': has_fav, }) class AddFavView(View): """ 用户收藏和取消收藏 """ def post(self, request): fav_id = request.POST.get('fav_id', 0) # 防止后边int(fav_id)时出错 fav_type = request.POST.get('fav_type', 0) # 防止int(fav_type)出错 if not request.user.is_authenticated: # 未登录时返回json提示未登录，跳转到登录页面是在ajax中做的 return HttpResponse('{"status":"fail", "msg":"用户未登录"}', content_type='application/json') exist_record = UserFavorite.objects.filter(user=request.user, fav_id=int(fav_id), fav_type=int(fav_type)) if exist_record: # 如果记录已经存在，表示用户取消收藏 exist_record.delete() return HttpResponse('{"status":"fail", "msg":"已取消收藏"}', content_type='application/json') else: user_fav = UserFavorite() if int(fav_id) > 0 and int(fav_type) > 0: user_fav.user = request.user user_fav.fav_id = int(fav_id) user_fav.fav_type = int(fav_type) user_fav.save() return HttpResponse('{"status":"success", "msg":"已收藏"}', content_type='application/json') else: return HttpResponse('{"status":"fail", "msg":"收藏出错"}', content_type='application/json')
（5）在org_base.html添加判断
（6）修改右上角登录和注册
把index.html页面中的登录、注册判断放到org_base里面
完善url链接
（1）org-detail-homepage.html
（2）org-detail-course.html
（3）org-detail-teachers.html
posted on 2018-03-25 11:59 zhang_derek 阅读(17134) 评论(6) 编辑 收藏 举报
