在 django-admin 中，对于模型，我必须按日期时间范围进行过滤。
我发现了这个： https ://github.com/DXist/django-daterange-filter/blob/master/daterange_filter/filter.py 效果很好，但仅适用于日期范围而不是日期时间范围。
所以我试图修改，这是我自己的版本：
class DateRangeForm(forms.Form):
def __init__(self, *args, **kwargs):
field_name = kwargs.pop('field_name')
super(DateRangeForm, self).__init__(*args, **kwargs)
self.fields['%s__gte' % field_name] = forms.DateTimeField(
label='', widget=AdminSplitDateTime(
attrs={'placeholder': _('From date')}), localize=True,
required=False)
self.fields['%s__lte' % field_name] = forms.DateTimeField(
label='', widget=AdminSplitDateTime(
attrs={'placeholder': _('To date')}), localize=True,
required=False)
class DateRangeFilter(admin.filters.FieldListFilter):
template = 'admin/daterange_filter/filter.html'
def __init__(self, field, request, params, model, model_admin, field_path):
self.lookup_kwarg_since = '%s__gte' % field_path
self.lookup_kwarg_upto = '%s__lte' % field_path
super(DateRangeFilter, self).__init__(
field, request, params, model, model_admin, field_path)
self.form = self.get_form(request)
def choices(self, cl):
return []
def expected_parameters(self):
return [self.lookup_kwarg_since, self.lookup_kwarg_upto]
def get_form(self, request):
return DateRangeForm(data=self.used_parameters,
field_name=self.field_path)
def queryset(self, request, queryset):
if self.form.is_valid():
# get no null params
filter_params = dict(filter(lambda x: bool(x[1]),
self.form.cleaned_data.items()))
for k, v in filter_params.items():
if k.endswith('__lte'):
filter_params[k] = v + timedelta(days=1)
return queryset.filter(**filter_params)
else:
return queryset
admin.filters.FieldListFilter.register(lambda f: isinstance(f, models.DateTimeField), DateRangeFilter)
“前端”端它正在工作..它显示了 AdminSplitDateTime 小部件，但是当我提交过滤器表单时，我得到：
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/erp/ordine/?data_creazione__gte_0=29%2F05%2F2013&data_creazione__gte_1=12%3A42%3A10&data_creazione__lte_0=&data_creazione__lte_1=
Django Version: 1.5.1
Python Version: 2.7.5
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.admin',
'account',
'south',
'mptt',
'erp',
'tinymce')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Traceback:
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in get_response
115. response = callback(request, *callback_args, **callback_kwargs)
File "C:\Python27\lib\site-packages\django\contrib\admin\options.py" in wrapper
372. return self.admin_site.admin_view(view)(*args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in _wrapped_view
91. response = view_func(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\views\decorators\cache.py" in _wrapped_view_func
89. response = view_func(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\contrib\admin\sites.py" in inner
202. return view(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in _wrapper
25. return bound_func(*args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in _wrapped_view
91. response = view_func(request, *args, **kwargs)
File "C:\Python27\lib\site-packages\django\utils\decorators.py" in bound_func
21. return func(self, *args2, **kwargs2)
File "C:\Python27\lib\site-packages\django\contrib\admin\options.py" in changelist_view
1180. self)
File "C:\Python27\lib\site-packages\django\contrib\admin\views\main.py" in __init__
73. self.query_set = self.get_query_set(request)
File "C:\Python27\lib\site-packages\django\contrib\admin\views\main.py" in get_query_set
303. use_distinct) = self.get_filters(request)
File "C:\Python27\lib\site-packages\django\contrib\admin\views\main.py" in get_filters
100. if not self.model_admin.lookup_allowed(key, value):
File "C:\Python27\lib\site-packages\django\contrib\admin\options.py" in lookup_allowed
263. model = field.rel.to
Exception Type: AttributeError at /admin/erp/ordine/
Exception Value: 'NoneType' object has no attribute 'to'
我准备了一个半空的 django 项目（1 个轻型模型，管理员设置，dev.db sqlite3）只是为了测试这个问题：你可以在这里找到它：https ://dl.dropboxusercontent.com/u/53953129/ test_project.zip