就像一个好的小编码器一样,我的所有Django模板都继承自base.html。现在我想在基础上添加一些功能,以便始终显示一些有趣的东西。一些用户统计信息,随机帖子或Feed等。
我的所有观点都是这样的:
def viewname(request) :
template_vales = {}
// Stuff
return render_to_response('some_file_name.html', template_values)
如何制作以便始终为所有视图填充template_values的值?我是否必须在所有观点开始时这样做?如:
import utils
def viewname(request) :
template_values = {}
utils.addDefaults(template_values)
// Stuff
return render_to_response('some_file_name.html', template_values)
或者有更好的方法吗?
答案 0 :(得分:9)
您应该使用上下文处理器:
http://docs.djangoproject.com/en/dev/ref/templates/api/
http://www.b-list.org/weblog/2006/jun/14/django-tips-template-context-processors/
在我的settings.py中,我为标准函数添加了几个函数(参见最后两个):
TEMPLATE_CONTEXT_PROCESSORS = (
"django.core.context_processors.request",
"django.core.context_processors.auth",
"django.core.context_processors.debug",
"django.core.context_processors.i18n",
"thetrailbehind.context_processors.canonical_url",
"thetrailbehind.context_processors.gmapkey",)
我添加的第一个定义了视图的规范URL,第二个在GMap键之间切换。这是函数:
def gmapkey(request):
url = request.META['HTTP_HOST']
key = ""
if url == "127.0.0.1:8000":
key = "ABQIAAAAGFSvsJjnPmsGb7IcfqoamBTpH3CbXHjuCVmaTc5MkkU4wO1RRhTaJZRNQLjBhGtJlm6eE4gJtku-Rw"
elif url == "192.168.11.3:8000":
key = "ABQIAAAAGFSvsJjnPmsGb7IcfqoamBTm8-wcGRt2V-0p00qdRdGeyDhtGBSRTbk2s1ciA8vzdxGeAnqq6g-F4g"
elif url == "192.168.11.17:7000":
key="ABQIAAAAmHGaJpkZhJ6huJ93yfaYERTmT93Y0kqi8UE3J2QowoLz6rHdtxTHqeJ0nRoENl5LY5gCqHhRK9Yasg"
elif url == "192.168.1.200:8000":
key="ABQIAAAAmHGaJpkZhJ6huJ93yfaYERR5_sKpsr8Ui4YjC4HGOe8xaUDeVhSxGV1r1rIL1OvmVMAGUQBoUK0H2w"
elif url == "192.168.1.73:8000":
key = "ABQIAAAAGFSvsJjnPmsGb7IcfqoamBR7_CRKSBu49YjvDOLq_-DZQHSIYBSip9sO5IHlFIoZMtDpVcduFQCnWg"
elif url == "www.trailbehind.com":
key="ABQIAAAAGFSvsJjnPmsGb7IcfqoamBQxFGSDsNggDdRtUnAb8L8sJ910FhSKwoOpNaUlGCQIhyl6Dy5Cbyb0lQ"
elif url == "dev.trailbehind.com":
key="ABQIAAAAmHGaJpkZhJ6huJ93yfaYERQzqIbhF_xOwOwM1oDO_kQqYhag7BRsoTInq2lBuE7fsgDN2xfyD2IL5A"
elif url == "trailbehind.com":
key = "ABQIAAAAGFSvsJjnPmsGb7IcfqoamBQL9YYTGyB2pLTiscy54DOfsaXeHBQqMBmq7UvWAZVenmRMtNr_bo3TMQ"
elif url == "tenuki.trailbehind.com":
key = "ABQIAAAAGFSvsJjnPmsGb7IcfqoamBQ5SkJUKVREyqcvaNQJsRscGi2yVhSj0mJSTasDiWec8Awxb_TUxOdElw"
elif url == "cabin.trailbehind.com":
key = "ABQIAAAAmHGaJpkZhJ6huJ93yfaYERSU-76xxg1tvy-8taAiiF1qqcGi1xSmjUhmAs_v2XAuGxKX_Y-4-gDP3Q"
elif url == "ec2-174-129-167-234.compute-1.amazonaws.com":
key = "ABQIAAAAmHGaJpkZhJ6huJ93yfaYERStHq7nubctzsNDgkYc34LoSNrRNhQVCNy2KFFm2BT1sG2yrXrw38ycNg"
答案 1 :(得分:4)
为此,我使用上下文处理器。例如,如果我想为每个视图获取变量MEDIA_URL
,我就像这样定义context_processors.py
:
def media_url(request):
from django.conf import settings
return {'MEDIA_URL': settings.MEDIA_URL}
在settings.py
中你必须
TEMPLATE_CONTEXT_PROCESSORS = (
....
'django.core.context_processors.request',
'myaplication.context_processors.menuitems',
)
在视图中,您必须拥有render_to_response
和context_instance=RequestContext(request)
例如:
def my_view(request):
return render_to_response('base.html',{},
context_instance=RequestContext(request))