2 Django基础

 1 TEMPLATES = [
 2     {
 3         ‘BACKEND‘: ‘django.template.backends.django.DjangoTemplates‘,
 4         ‘DIRS‘: [os.path.join(BASE_DIR, ‘templates‘)],
 5         ‘APP_DIRS‘: True,
 6         ‘OPTIONS‘: {
 7             ‘context_processors‘: [
 8                 ‘django.template.context_processors.debug‘,
 9                 ‘django.template.context_processors.request‘,
10                 ‘django.contrib.auth.context_processors.auth‘,
11                 ‘django.contrib.messages.context_processors.messages‘,
12             ],
13         },
14     },
15 ]

1 STATIC_URL = ‘/static/‘
2 STATICFILES_DIRS = [
3     os.path.join(BASE_DIR, ‘static‘),
4 ]

1 def getIndex(request):
2     #return msg_index.html  page
3     return render(request, ‘msg_index.html‘)

1 urlpatterns = [
2     url(r‘^admin/‘, admin.site.urls),
3     url(r‘^index/‘, getIndex),
4 ]

1 DATABASES = {
2     ‘default‘: {
3         ‘ENGINE‘: ‘django.db.backends.mysql‘,
4         ‘NAME‘: ‘test1‘,
5         ‘USER‘: ‘root‘,
6         ‘PASSWORD‘: ‘111111‘,
7         ‘HOST‘:‘127.0.0.1‘
8     }
9 }

1 INSTALLED_APPS = [
2     ‘django.contrib.admin‘,
3     ‘django.contrib.auth‘,
4     ‘django.contrib.contenttypes‘,
5     ‘django.contrib.sessions‘,
6     ‘django.contrib.messages‘,
7     ‘django.contrib.staticfiles‘,
8     ‘message‘,
9 ]

 1 from django.db import models
 2 
 3 class UserMessage(models.Model):
 4     name = models.CharField(max_lenth=20, verbose_name=u‘用户名‘)
 5     email = models.EmailField(verbose_name=u‘邮箱‘)
 6     address = models.CharField(max_length=200, verbose_name=u‘地址‘)
 7     message = models.CharField(max_length=500, verbose_name=u‘留言‘)
 8 
 9     class Meta:
10         verbose_name = u‘用户留言信息‘

 1 __all__ = [str(x) for x in (
 2     ‘AutoField‘, ‘BLANK_CHOICE_DASH‘, ‘BigIntegerField‘, ‘BinaryField‘,
 3     ‘BooleanField‘, ‘CharField‘, ‘CommaSeparatedIntegerField‘, ‘DateField‘,
 4     ‘DateTimeField‘, ‘DecimalField‘, ‘DurationField‘, ‘EmailField‘, ‘Empty‘,
 5     ‘Field‘, ‘FieldDoesNotExist‘, ‘FilePathField‘, ‘FloatField‘,
 6     ‘GenericIPAddressField‘, ‘IPAddressField‘, ‘IntegerField‘, ‘NOT_PROVIDED‘,
 7     ‘NullBooleanField‘, ‘PositiveIntegerField‘, ‘PositiveSmallIntegerField‘,
 8     ‘SlugField‘, ‘SmallIntegerField‘, ‘TextField‘, ‘TimeField‘, ‘URLField‘,
 9     ‘UUIDField‘,
10 )]

 1 def getIndex(request):
 2     #insert
 3     if request.method == ‘POST‘:
 4         #获取请求值
 5         name = request.POST.get(‘name‘, ‘‘) #需要与form中的控件名相同
 6         email = request.POST.get(‘email‘, ‘‘)
 7         address = request.POST.get(‘address‘, ‘‘)
 8         message = request.POST.get(‘message‘, ‘‘)
 9         name = request.POST.get(‘name‘, ‘‘)
10         #插入数据库
11         user_msg = UserMessage2()
12         user_msg.msg_id = 5
13         user_msg.name = name
14         user_msg.email = email
15         user_msg.message = message
16         user_msg.address = address
17         user_msg.save()
18     return render(request, ‘msg_index.html‘)

1 def getMSG(request):
2     # select all
3     all_msg = UserMessage2.objects.all()
4     for msg in all_msg:
5         print msg.name
6     #select filter
7     filte_msg = UserMessage2.objects.filter(name=‘张‘, address=‘北京‘)
8     for flt in filte_msg:
9         print flt

1 def delMSG(request):
2     # delete
3     all_msg = UserMessage2.objects.filter(name=‘张‘, address=‘北京‘)
4     all_msg.delete()    #删除所有
5     for msg in all_msg:
6         msg.delete()    #删除某个
7         print msg.name

1 def getMSG(request):
2     # 数据库取值
3     msg = None
4     all_msg = UserMessage2.objects.filter(name=‘张‘)
5     if all_msg:
6         msg = all_msg[0]
7     return render(request, ‘msg_index.html‘, {‘msg_data‘:msg,})  #回显使用数据