全局变量
老版本的 Django
TEMPLATE_DIRS = (
os.path.join(BASE_DIR, 'iaasms/render/templates'),
)
TEMPLATE_CONTEXT_PROCESSORS= (
'django.contrib.auth.context_processors.auth',
# 'django.core.context_processors.debug',
# 'django.contrib.messages.context_processors.messages',
'iaasms.context_processors.template_variable', # 自定义
)
新版本的 Django
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, "iaasms/render/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',
'iaasms.context_processors.template_variable'
],
},
},
]
SESSION_SERIALIZER = 'django.contrib.sessions.serializers.PickleSerializer' #模板中可以使用{{request.session.*}}
Paginator
Django分页
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from django.shortcuts import render
def listing(request):
contact_list = Contacts.objects.all() # 获取所有contacts,假设在models.py中已定义了Contacts模型
paginator = Paginator(contact_list, 25) # 每页25条
page = request.GET.get('page')
try:
contacts = paginator.page(page) # contacts为Page对象!
except PageNotAnInteger:
# If page is not an integer, deliver first page.
contacts = paginator.page(1)
except EmptyPage:
# If page is out of range (e.g. 9999), deliver last page of results.
contacts = paginator.page(paginator.num_pages)
return render(request, 'list.html', {'contacts': contacts})