1.登录xadmin添加5个城市，北上广深天津，并在org.models.py的citydict里添加str
2.添加机构，需要传入几个logo。先配置上传数据储存路径。在项目根目录下创建media文件夹，再在settings.py里
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
由于之前models里
image = models.ImageField(upload_to="org/%Y/%m",verbose_name="logo")
上传图片后会自动保存在media文件夹下的2018/01里。再给CourseOrg一个str。再加个机构类别字段
category = models.CharField(default='pxjg',verbose_name= '机构类别',max_length=20,choices=(('pxjg','培训机构'),('gr','个人'),('gx','高校')))
然后添加10个机构。数据迁移，makemigrations、migrate。views.py:
from django.shortcuts import render
from django.views.generic import View
from .models import CourseOrg, CityDict
# Create your views here.
class OrgView(View):
"""
课程机构列表功能
"""
def get(self, request):
#课程机构
all_orgs = CourseOrg.objects.all()
#城市
all_citys = CityDict.objects.all()
return render(request, "org-list.html", {
"all_orgs":all_orgs,
"all_citys":all_citys
})
传城市和机构到前端，前端以循环的方式展示。org-list.html
<li>
<h2>所在地区</h2>
<div class="more">更多</div>
<div class="cont">
<a href="?ct="><span class="active">全部</span></a>
{% for city in all_citys %}
<a href="?city=1&ct="><span class="">{{ city.name }}</span></a>
{% endfor %}
</div>
</li>
{% 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 %}
数据库里image文件以字符串形式存储，即相对路径地址。光把它写在data-url里还不够，这里需要绝对路径。这样写
data-url="{{ MEDIA_URL }}{{ course_org.image }}"
但是再html文件里应用MEDIA_URL需要现在settings.py里加上 'django.core.context_processors.media'，它可以把MEDIA_URL 注册进html文件
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',
'django.core.context_processors.media'
],
},
},
]
打开网页还是不显示图片。查看网页源代码，发现图片处data-url="/media/org/2018/01/imooc.png"，这个url需要在urls.py配置个函数处理，但不需要响应函数，django自带的serve函数即可。
from django.conf.urls import url, include
from django.contrib import admin
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
import xadmin
from apps.users.views import login
urlpatterns = [
url(r'^xadmin/', xadmin.site.urls),
url('^$', TemplateView.as_view(template_name="index.html"),name="index"),
url('^login/$', LoginView.as_view(),name="login"), #as_view()方法判断是post还是get然后返回响应函数名
url('^register/$', RegisterView.as_view(),name="register"),
url(r'^captcha/', include('captcha.urls')),
url(r'^active/(?P<active_code>.*)/$', ActiveUserView.as_view(),name="user_active"),
url(r'^forget/$', ForgetPwdView.as_view(), name="forget_pwd"),
url(r'^reset/(?P<active_code>.*)/$', ResetView.as_view(),name="reset_pwd"),
url(r'^modify_pwd/$', ModifyPwdView.as_view(),name="modify_pwd"),
#课程机构首页
url(r'^org_list/$', OrgView.as_view(), name="modify_pwd"),
#配置上传文件的访问处理函数
url(r'^media/(?P<path>.*)/$', serve,{"document_root":MEDIA_ROOT})
]
这样就显示图片了。再显示一共多少家机构。
from django.shortcuts import render
from django.views.generic import View
from .models import CourseOrg, CityDict
# Create your views here.
class OrgView(View):
"""
课程机构列表功能
"""
def get(self, request):
#课程机构
all_orgs = CourseOrg.objects.all()
org_nums = all_orgs.count()
#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
})
再传入org_nums，{{org_nums}}。
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