如何将数据从 Django 中的任何视图传递给任何模板? [英] How can I pass data to any template from any view in Django?
问题描述
就像一个优秀的小程序员,我所有的 Django 模板都继承自 base.html.现在我想为基础添加一些功能,以始终显示一些有趣的东西.一些用户统计数据,或随机帖子,或提要等.
Like a good little coder, all of my Django templates inherit from a base.html. Now I would like to add some functionality to the base to always show some interesting things. Some user statistics, or random posts, or feeds, etc.
我所有的观点都是这样的:
All of my views look like this:
def viewname(request) :
template_vales = {}
// Stuff
return render_to_response('some_file_name.html', template_values)
我如何才能使我的所有视图始终填充 template_values 的值?我必须在所有视图开始时都这样做吗?如:
How can I make it so that the values of template_values are always populated for all my views? Do I have to do this at the start of all of my views? As in:
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?
推荐答案
你应该使用上下文处理器:
You should use context processors:
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,我向标准函数添加了几个函数(参见最后两个):
In my settings.py, I add a couple of functions to the standard ones (see the last two):
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.这是该功能:
The first one I add defines the canonical URL for the view, and the second switches between GMap keys. Here's that function:
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"
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