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Custom filter for date field in Django Admin, Django 1.2

Is this still valid syntax for Django 1.2?

Custom filter in Django Admin on Django 1.3 or lower

I tried, but the list_filter parameter in the admin class does not recognize my custom filter. How to add a custom filter to list_filter so that it displays?

    class MyModelAdmin(admin.ModelAdmin):
        ...
        list_filter = ['is_expired_filter']

Here, my 'is_expired_filter' is my newly registered custom filter, which, according to the author, does this:

    list_filter = ('is_live')

But this is not recognized by Django, and the error I get when loading the admin page is

Exception type: Incorrect Configured Exceptional value: 'PositionAdmin.list_filter [2]' refers to the 'is_expired_filter' field that is not in the 'Position' model

, , , , / .

:

    def is_live(self):
        if self.when_to_publish is not None:
            if ( self.when_to_publish < datetime.now() ):
                return """ <img alt="True" src="/media/img/admin/icon-yes.gif"/> """
        else:
            return """ <img alt="False" src="/media/img/admin/icon-no.gif"/> """      

    is_live.allow_tags = True
+3
2

, , , , , , , DateField, :

class Position(models.Model):
    expiration_date = models.DateField()
    ...


class Position(models.Model):
    expiration_date = models.DateField()
    expiration_date.is_expired_filter = True
    ...

, admin.py

from django.contrib.admin.filterspecs import FilterSpec, DateFieldFilterSpec
from django.utils.translation import ugettext as _
from datetime import datetime, date
class ExpiredFilterSpec(DateFieldFilterSpec):
    """
    Adds filtering by future and previous values in the admin
    filter sidebar. Set the is_expired_filter filter in the model field
    attribute 'is_expired_filter'.
    my_model_field.is_expired_filter = True
    """
    def __init__(self, f, request, params, model, model_admin, **kwargs):
        super(ExpiredFilterSpec, self).__init__(f, request, params, model,
                                                model_admin, **kwargs)
        today = date.today()
        self.links = (
            (_('All'), {}),
            (_('Not Expired'), {'%s__lt' % self.field.name: str(today),
                   }),
            (_('Expired'), {'%s__gte' % self.field.name: str(today),
                    }))
    def title(self):
        return "Filter By Expiration Date"
# registering the filter
FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'is_expired_filter', False),
                                   ExpiredFilterSpec))


class PositionAdmin(admin.ModelAdmin):
    list_filter = ['expiration_date']
+2

Django Admin Django 1.3 , .



from django.contrib.admin.filterspecs import FilterSpec, ChoicesFilterSpec, DateFieldFilterSpec
from django.utils.encoding import smart_unicode
from django.utils.translation import ugettext as _
from datetime import datetime

class IsExpiredFilterSpec(DateFieldFilterSpec):
    """
    Adds filtering by future and previous values in the admin
    filter sidebar. Set the is_expired_filter filter in the model field 
    attribute 'is_expired_filter'.
    my_model_field.is_expired_filter = True
    """

    def __init__(self, f, request, params, model, model_admin):
        super(IsExpiredFilterSpec, self).__init__(f, request, params, model,
                                                   model_admin)
         # -- You'll need to edit this to make it do what you want. --
#        today = datetime.now()
#        self.links = (
#            (_('Any'), {}),
#            (_('Yes'), {'%s__lte' % self.field.name: str(today),
#                       }),
#            (_('No'), {'%s__gte' % self.field.name: str(today),
#                    }),
#            
#        )


    def title(self):
        return "Is Expired"

\# registering the filter
FilterSpec.filter_specs.insert(0, (lambda f: getattr(f, 'is_expired_filter', False),
                                   IsExpiredFilterSpec))

class MyModelAdmin(admin.ModelAdmin):
    ...
    MODEL_FIELD_TO_FILTER.is_expired_filter = True
    list_filters = ['MODEL_FIELD_TO_FILTER']

: jimbob. MODEL_FIELD_TO_FILTER - , .

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