def home(request):
username = '******'
# try and catch to avoid not exists error
# try and catch to avoid not mutiple value error
loginer1 = People(name="Acer", major="CS")
# add: People() -> obj.save()
# delete: obj.get -> obj.delete()
# update: obj = People.objects.get(name=""), obj.name = "", obj.save()
password = ''
dbuser = People.objects.filter(name=username)
# order_by, exclude, all,
if request.method == 'POST':
# request has two methods and hence two dict, one is POST and another is GET
loginer = People(name=request.POST.get("username"))
username = loginer.name
# <django.forms.widgets.PasswordInput object at 0x03AE1550>
# password = forms.PasswordInput()
myLoginForm = LoginForm(request.POST)
request.session['username'] = username
if myLoginForm.is_valid():
username = myLoginForm.clean_data['username']
# query with condition:People.filter()
#
else:
myLoginForm = LoginForm()
response = render_to_response('home.html', {'username': username})
# avoid the situation: 确认重新提交表单
response.set_cookie('last_connection', datetime.datetime.now())
response.set_cookie('username', datetime.datetime.now())
return response
def register(request):
if request.POST.get('name'):
postinfo = request.POST
_name = postinfo.get('name')
_major = postinfo.get('major')
_age = postinfo.get('age')
_grade = postinfo.get('grade')
newuser = People(name=_name, major=_major, age=_age, grade=_grade)
if newuser.is_valid():
newuser.save()
return HttpResponse("Register Success")
return render(request, 'register.html')
def first_try(request):
person = People(name = 'Zhaoxiaoli',job='teacher')
html_string = '''
<!DOCTYPE html>
<html>
<head>
<title>demo</title>
<link rel="stylesheet" type="text/css" href="http://cdn.jsdelivr.net/semantic-ui/2.2.4/semantic.min.css">
</head>
<body>
<h1 class="ui center aligned icon header">
<i class="comments icon"></i>
hello,{{person.name}}
</h1>
</body>
</html>
'''
# 创建模版
t = Template(html_string)
#传递给模版的变量是特殊的Python字典，称为上下文(Context)
c =Context({'person':person})
# render() 将给定的模版与给定的上下文字典组合起来，
# 并返回带有该呈现文本的HttpResponse对象
web_page = t.render(c)
# 返回 HttpResponse对象 需要引入HttpResponse
return HttpResponse(web_page)
def first_try(request):
person = People(name='spock', job='officer')
html_string = '''
<html>
<body>
Hello,The {{person.job}} {{person.name}}
</body>
</html>
'''
t = Template(html_string)
c = Context({'person': person})
web_page = t.render(c)
return HttpResponse(web_page)
def first_try(request):
person = People(name='Spock', job='officer')
html_string = '''
<html>
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.4/semantic.css" media="screen" title="no title" charset="utf-8">
</head>
<body>
<h1 class="ui center aligned icon header">
<i class="hand spock icon"></i>
Hello, {{ person.name }}
</h1>
</body>
</html>
'''
t = Template(html_string)
c = Context({'person': person})
web_page = t.render(c)
return HttpResponse(web_page)
def first_try(request):
person = People(name='alxe', job='it')
html_string = '''
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>first_try</title>
</head>
<body>
<h1>Hello</h1>
<h3> {{ person.name }} </h3>
</body>
</html>
'''
t = Template(html_string)
c = Context({'person': person})
web_page = t.render(c)
return HttpResponse(web_page)
def first_try(request):
#由于没有数据，所以只好先创建一个数据，再使用数据
person = People(name='Spock', job='officer')
html_string = '''
<html>
<head>
<meta charset="utf-8">
<title>firstapp</title>
</head>
<body>
<h1>
Hello, {{ person.name }}
</h1>
</body>
</html>
'''
t = Template(html_string) #将其变成模板
c = Context({'person': person}) #获取数据库信息生成上下文
web_page = t.render(c) #进行渲染
return HttpResponse(web_page)
def first_try(request):
person = People(name="Spock", job="officer")
#把Html和CSS放进Template
html_string = '''
<html>
<head>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.4/semantic.css">
</head>
<body>
<h1 class="ui center aligned icon header">
<i class="hand spock icon"></i>
Hello, {{ person.name }}
</h1>
</body>
</html>
'''
# {{}}指模板变量
t = Template(html_string) #将数据定义为模板
c = Context({'person':
person}) #Context是把数据装进模板，做出一个上下文，接收一个字典参数，名称和对应的变量是什么。
web_page = t.render(c) #render方法把上下文，即从数据库取得的信息，渲染到模板里，并存储到web_page里
return HttpResponse(web_page) #把网页变成一个http的对象