我正在尝试使用django作为独立的模板引擎。 这基于this工作正常 我尝试添加一个简单的过滤器,但模板无法使用它
基本示例代码是:
from django.template import Template, Context, Library
from django.conf import settings
settings.configure()
register = Library()
@register.filter
def nothing(value):
return value
template = '''
{{var|nothing}}
'''
t = Template(template)
c = Context({'var':1})
print (t.render(c))
,错误是:
Traceback (most recent call last):
File "C:/dev/git/ophir/dj.py", line 20, in <module>
t = Template(template)
File "C:\Python27\lib\site-packages\django\template\base.py", line 190, in __init__
self.nodelist = engine.compile_string(template_string, origin)
File "C:\Python27\lib\site-packages\django\template\engine.py", line 261, in compile_string
return parser.parse()
File "C:\Python27\lib\site-packages\django\template\base.py", line 317, in parse
filter_expression = self.compile_filter(token.contents)
File "C:\Python27\lib\site-packages\django\template\base.py", line 423, in compile_filter
return FilterExpression(token, self)
File "C:\Python27\lib\site-packages\django\template\base.py", line 633, in __init__
filter_func = parser.find_filter(filter_name)
File "C:\Python27\lib\site-packages\django\template\base.py", line 429, in find_filter
raise TemplateSyntaxError("Invalid filter: '%s'" % filter_name)
django.template.base.TemplateSyntaxError: Invalid filter: 'nothing'
Process finished with exit code 1
有什么想法吗?
答案 0 :(得分:3)
您需要按照文档的Code Layout部分中的说明操作,没有任何解决方法。
因此,您需要在{% load my_template_tags %}
字符串中加入template
,并在templatetags/my_template_tags.py
设置中加入包含INSTALLED_APPS
模块的应用。