DjangoWeb开发--登陆页面及权限的设置与使用

1.django自带的登陆页面使用的是Username和Password,我们可以通过自定义用邮箱来登陆

• views.py

from django.shortcuts import render_to_response
from django import forms
class LoginForm(forms.Form):
    # 继承表单模块
    email = forms.CharField(label='email:', max_length=100)
    pwd = forms.CharField(label='password', widget=forms.PasswordInput)
    #隐式输入密码
def login(request):
    if ('email' or 'pwd') not in request.GET:
        lf = LoginForm()
        return render_to_response('login.html', {'lf':lf})
        # "login.html"对应的模板语法为{{lf.as_p}}
    lf = LoginForm(request.GET)
    email = lf.data['email']
    pwd = lf.data['pwd']
    try:
        user = User.objects.get(email=email)
    except User.DoesNotExist:
        pass
    else:
        if user.check_password(pwd):
            if user.has_perm('blog.can_view'):  #检查用户权限
                # do something
                return HttpResponse("you can see news")
            return HttpResponse("you can't see news")
    return HttpResponseRedirect('/blog/login')

2.权限设计和使用

• models.py

    # 为要设置权限的表添加元属性
   class Meta:
       permissions = {('can_view', 'can see news'), ('can_add', 'can add news'),
('can_edit', 'can edit news'), ('can_delete', 'can delete news')}

• views.py

from django.contrib.auth.models import Permission
import uuid
def register(request):
    if ('email' or 'pwd') not in request.GET:
        lf = LoginForm()
        return render_to_response('login.html',
    lf = LoginForm(request.GET)
    email = lf.data['email']
    pwd = lf.data['pwd']
    user = User()
    user.username = uuid.uuid()
    user.email = email
    user.set_password(pwd)
    user.desc = 'lazy'
    user.save()
    user.user_permissions = [Permission.objects.get(codename='can_view'), \
    Permissions.objects.get(codename='can_add')]
    user.save()
    return HttpResponseRedict('/blog/login')