Fix get args construction when there are multiple lists on the page
It is now possible to go back and forward through the liast, and
specify the limit (both offset and limit can be done per list).
The JS driving the list boxes is buggy, if visiting an url like:
http://localhost:8080/notification/list?limit_0=10
And then change the limit in the second checkbox, it directs to:
http://localhost:8080/notification/list?limit_1=25
Whereas it should redirect to:
http://localhost:8080/notification/list?limit_0=10&limit_1=25
The logic _does_ work properly when the limit of the changed list
is already present in the url.
Patch by: Sverre Rabbelier
"Functions that help with dynamically creating decorators for views."
import types
try:
from functools import wraps
except ImportError:
from django.utils.functional import wraps # Python 2.3, 2.4 fallback.
def decorator_from_middleware(middleware_class):
"""
Given a middleware class (not an instance), returns a view decorator. This
lets you use middleware functionality on a per-view basis.
"""
def _decorator_from_middleware(*args, **kwargs):
# For historical reasons, these "decorators" are also called as
# dec(func, *args) instead of dec(*args)(func). We handle both forms
# for backwards compatibility.
has_func = True
try:
view_func = kwargs.pop('view_func')
except KeyError:
if len(args):
view_func, args = args[0], args[1:]
else:
has_func = False
if not (has_func and isinstance(view_func, types.FunctionType)):
# We are being called as a decorator.
if has_func:
args = (view_func,) + args
middleware = middleware_class(*args, **kwargs)
def decorator_func(fn):
return _decorator_from_middleware(fn, *args, **kwargs)
return decorator_func
middleware = middleware_class(*args, **kwargs)
def _wrapped_view(request, *args, **kwargs):
if hasattr(middleware, 'process_request'):
result = middleware.process_request(request)
if result is not None:
return result
if hasattr(middleware, 'process_view'):
result = middleware.process_view(request, view_func, args, kwargs)
if result is not None:
return result
try:
response = view_func(request, *args, **kwargs)
except Exception, e:
if hasattr(middleware, 'process_exception'):
result = middleware.process_exception(request, e)
if result is not None:
return result
raise
if hasattr(middleware, 'process_response'):
result = middleware.process_response(request, response)
if result is not None:
return result
return response
return wraps(view_func)(_wrapped_view)
return _decorator_from_middleware