How to develop a scheme of "private ModelAdmin.list_filter"

[郑宇恒]

Hi,

I was developing a experiment data management site adopting "django.contrib.admin". For example I have the "Carbon" model with a foreign key "author"

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from django.db import models

from django.contrib.auth import models as auth_mod

class Carbon(models.Model):

    sn = models.CharField(max_length=30)

    source = models.CharField(max_length=30)

    pyrolysis_temperature = models.IntegerField(default=1400)

    pyrolysis_duration = models.IntegerField(default=2)

    comments = models.TextField(default='Leave your comments here')

    status = models.CharField(max_length=1, choices=STATUS_CHOICES,default='a')

    pub_date = models.DateTimeField('date produced', auto_now=True)

    author = models.ForeignKey(auth_mod.User, default=1)

    def __str__(self):

        return self.sn

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and I write this in "carbon/admin.py"

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class CarbonAdmin(admin.ModelAdmin):

    list_display = ('sn', 'source','pub_date','status')

    list_filter =  ('source','status','pub_date',)

   

    exclude = ('author',)

    def save_model(self, request, obj, form, change):

        obj.author = request.user

        obj.save()

    def get_queryset(self, request):

        qs = super(CarbonAdmin, self).get_queryset(request)

        if request.user.is_superuser:

            return qs

        return qs.filter(author=request.user)

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to achieve an "objective permission" to filter the carbons created by some specific author, 

but this method failed to control the list_filter() result.

The list_filter() always feedback a list of the global options, other than the options only created by the author.

How could I solve this by adding some filter before the list_filter() returning the global options?