Python升级3.6 强力Django+杀手级Xadmin打造在线教育平台

链接: https://pan.baidu.com/s/1eRpjOB6UKU-enG5urXOEoA 提取码: w5jm

第5章 通过xadmin快速搭建后台管理系统

通过xadmin结合第4章设计的model快速的搭建一套完整的后台管理系统；本章首先介绍django admin的简单使用， 然后引出xadmin，在安装xadmin之后将model注册到xadmin中， 最后完成xadmin的全局配置

权限管理

样式开发

快速开发

后台开发

5-1

setting更改语言.

LANGUAGE_CODE =‘zh-hans’#更改时区TIME_ZONE ='Asia/Shanghai’USE_I18N =TrueUSE_L10N =True#更改为False,否则保存UTC的时间USE_TZ =False

数据库报错,先不管他

5-2

安装xadmin

报错.

去github下载替换readme.rst

压缩zip

pipinstallxadmin.zip

setting设置.

INSTALLED_APPS = [‘django.contrib.admin’,‘django.contrib.auth’,‘django.contrib.contenttypes’,‘django.contrib.sessions’,‘django.contrib.messages’,‘django.contrib.staticfiles’,‘users’,‘courses’,‘operation’,‘organization’,‘xadmin’,‘crispy_forms’]

2.路由界面导入

MxOnline/urls.py

fromdjango.conf.urlsimporturlfromdjango.contribimportadminimportxadminurlpatterns = [ url(r’^xadmin/’, xadmin.site.urls),]

迁移 makemigrations , migrate

5-3

apps/users/adminx.py

* coding: utf-8 _*_author ='lv’date ='2017/11/24 21:16’importxadminfrom.modelsimportEmailVerifyRecord, Banner, UserProfileclassEmailVerifyRecordAdmin(object):list_display = [‘code’,‘email’,‘send_type’,‘send_time’] search_fields = [‘code’,‘email’,‘send_type’] list_filter = [‘code’,‘email’,‘send_type’,‘send_time’] model_icon ='fa fa-address-book-o’classBannerAdmin(object):list_display = [‘title’,‘image’,‘url’,‘index’,‘add_time’] search_fields = [‘title’,‘image’,‘url’,‘index’] list_filter = [‘title’,‘image’,‘url’,‘index’,‘add_time’]xadmin.site.register(EmailVerifyRecord, EmailVerifyRecordAdmin)xadmin.site.register(Banner, BannerAdmin)

6-1

配置MxOnline/urls

fromdjango.conf.urlsimporturlfromdjango.contribimportadminfromdjango.views.genericimportTemplateViewimportxadminurlpatterns = [ url(r’^xadmin/’, xadmin.site.urls),

把js,image,css,存放的static目录下.

setting更改路径.index更改路径.

STATICFILES_DIRS = ( os.path.join(BASE_DIR,“static”))

6-2

熟练打断点.

crsf掌握

6-7 注册

*配置网页的静态文件

MxOnline/setting

微信截图_20171128122946.png

template/register.html

微信截图_20171128123008.png

验证码框架

微信截图_20171128123524.png

验证码验证

classRegisterForm(forms.Form):email = forms.EmailField(required=True) password = forms.CharField(required=True, min_length=5) captcha = CaptchaField(error_messages={“invalid”:u"验证码错误"})

就是传入浏览器POST请求,表格验证,如果错误就返回错误信息.

6-9 发送邮件验证.

目的:用于发送注册,更改验证码

apps/utils/email_send.py

fromrandomimportRandomfromdjango.core.mailimportsend_mailfromusers.modelsimportEmailVerifyRecordfromMxOnline.settingsimportEMAIL_FROMdefrandom_str(randomlength=8):str =’'chars ='AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz0123456789’length = len(chars) -1random = Random()foriinrange(randomlength): str+=chars[random.randint(0, length)]returnstrdefsend_register_email(email, send_type=“register”):email_record = EmailVerifyRecord() code = random_str(16) email_record.code = code email_record.email = email email_record.send_type = send_type email_record.save() email_title ="“email_body =”"ifsend_type ==“register”: email_title ="慕学在线网注册激活链接"email_body =“请点击下面的链接激活你的账号: http://127.0.0.1:8000/active/{0}”.format(code) send_status = send_mail(email_title, email_body, EMAIL_FROM, [email])ifsend_status:pass

MxOnline/setting

EMAIL_HOST ="smtp.sina.com"EMAIL_PORT =25EMAIL_HOST_USER ="projectsedu@sina.com"EMAIL_HOST_PASSWORD =“admin123"EMAIL_USE_TLS=FalseEMAIL_FROM ="projectsedu@sina.com”

6-10 测试发送邮件

测试就是在view界面调用了send_register_email(user_name, “register”)

然后我用的QQ邮箱生效了.

6-11 判断用户是否注册了

忘记密码

ForgetPwdView

get 返回网页.

post 如果验证正确,发送邮件,否则提示失败.

7-1模板继承

父模板 {% block title %} dudududu {% endblock %}

子模板

{% ‘base.html’ %}

{% block title %} dadadada {% endblock %}

7-3 机构类别

上传文件地址.

setting配置media,还要配置url

MEDIA_URL = ‘/media/’

MEDIA_ROOT = os.path.join(BASE_DIR, ‘media’)

model类lim

python2 defUnicode(self)

python3 defstr(self):

return self.name

7-4

模板显示图片配置图片地址路径要设置setting地址

data-url="{{ MEDIA_URL }}{{ course_org.image }}

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’, ], }, },]

还要在url里设置路径

url(r’^media/(?P.*)$’, serve, {“document_root”: MEDIA_ROOT}),

7-5 分页库

目标:给机构分页

安装分页库

pip install django-pure-pagination

setting添加pure-pagination

微信截图_20171129142254.png

views中写分页

try: page = request.GET.get(‘page’,1)exceptPageNotAnInteger: page =1p = Paginator(all_orgs,5, request=request) orgs = p.page(page)

写模板

{% if all_orgs.has_previous %}上一页{% endif %} {% for page in all_orgs.pages %} {% if page %} {% ifequal page all_orgs.number %}{{ page }}{% else %}
{{ page }}
{% endifequal %} {% else %}…{% endif %} {% endfor %} {% if all_orgs.has_next %}下一页{% endif %}

报错说传入参数不对,是因为我导错包了,应该是pure-pagination我导入django本身的分页了.

7-6

学习人数,可成熟排序

增加字段

students = models.IntegerField(default=0, verbose_name=u"学习人数") course_nums = models.IntegerField(default=0, verbose_name=u"课程数")

7-7

ModelForm

Form会对表单先验证再保存到数据库.

classUserAskForm(forms.Form):name = forms.CharField(max_length=20, verbose_name=u"姓名") mobile = forms.CharField(max_length=11, verbose_name=u"手机") course_name = forms.CharField(max_length=50, verbose_name=u"课程名")

ModelForm可以简写成下面的

classUserAskForm(forms.ModelForm):classMeta:model = UserAsk fields = [‘name’,‘mobile’,‘course_name’]

7-9

开始撒欢听歌对代码编辑.因为都是流水账了,试试自己可以不可以.

就是urls–views–templates

机构主页

urls

url(r’^home/(?P<org_id>\d+)/$’, OrgHomeView.as_view(), name=“org_home”),

views

classOrgHomeView(View):"""

机构首页

"""defget(self, request, org_id):# 网页选项卡current_page ="home"# 通过传入机构id查找对应的课程course_org = CourseOrg.objects.get(id=int(org_id))# 增加点击数course_org.click_nums +=1course_org.save()        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 = Trueall_courses = course_org.course_set.all()[:3]        all_teachers = course_org.teacher_set.all()[:1]returnrender(request,'org-detail-homepage.html', {'all_courses':all_courses,'all_teachers': all_teachers,'course_org':course_org,'current_page':current_page,'has_fav':has_fav        })

templates这里我先编辑org_base.html和org-detail-homepage.html

退出,和用户,其他页面选项卡,还有收藏没有做在html链接更改成#

机构课程

urls

url(r’^course/(?P<org_id>\d+)/$’, OrgCourseView.as_view(), name=“org_ 1ddc3 course”),

views

classOrgCourseView(View):"""

机构课程列表页

"""defget(self, request, org_id):current_page ="course"course_org = CourseOrg.objects.get(id=int(org_id))        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 = Trueall_courses = course_org.course_set.all()returnrender(request,'org-detail-course.html', {'all_courses':all_courses,'course_org':course_org,'current_page':current_page,'has_fav':has_fav        })

机构介绍

urls

url(r’^course/(?P<org_id>\d+)/$’, OrgCourseView.as_view(), name=“org_course”),

views

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