从admin.py中的配置文件访问用户数据

Question

I'm trying to create an admin configuration to my new Profil class.

class Profil(models.Model):

    user = models.OneToOneField(User) 
    birthdate = models.DateField("date de naissance", blank=True, null=True)
    country = models.CharField("pays", max_length=64, blank=True)

And this is the admin.py of this class :

class ProfilAdmin(admin.ModelAdmin):
    list_display = ('user.username', 'user.email', 'country', 'user.is_staff')
    list_filter = ('user.date_joined', 'user.is_staff')
    search_fields = ('user.username', 'user.email', 'country', 'user.first_name')

admin.site.register(Profil, ProfilAdmin)

And of course, 'user.username' doesn't work. How can I get the username of my user through my Profil class?

This is the solution and it looks good :

class ProfilAdmin(admin.ModelAdmin):
    list_display = ('get_username', 'get_email', 'country')
    list_filter = ('get_date_joined', 'get_is_staff')
    search_fields = ('user__username', 'user__date_joined', 'user__is_staff')

    def get_username(self, obj):
        return obj.user.username
    get_username.short_description = 'User'
    get_username.admin_order_field = 'user__username'

    def get_email(self, obj):
        return obj.user.email
    get_email.short_description = 'Email'
    get_email.admin_order_field = 'user__email'

    def get_date_joined(self, obj):
        return obj.user.date_joined
    get_date_joined.short_description = 'Date joined'
    get_date_joined.admin_order_field = 'user__date_joined'

    def get_is_staff(self, obj):
        return obj.user.is_staff
    get_is_staff.short_description = 'Is staff'
    get_is_staff.admin_order_field = 'user__is_staff'

But now I get the following error during the makemigrations :

SystemCheckError: System check identified some issues:

ERRORS:
<class 'accounts.admin.ProfilAdmin'>: (admin.E116) The value of 'list_filter[0]' refers to 'get_date_joined', which does not refer to a Field.
<class 'accounts.admin.ProfilAdmin'>: (admin.E116) The value of 'list_filter[1]' refers to 'get_is_staff', which does not refer to a Field.

I understand that is_staff is a class method, but how can I access to it?

Answer 1

You cannot reach the object directly. Instead you'll have to use a custom method. The following should get you started:

class ProfilAdmin(admin.ModelAdmin):
    list_display = ('get_username', )

    search_fields = ['user__username', ]

    def get_username(self, obj):
        return obj.user.username
    get_patient.short_description = 'User'
    get_patient.admin_order_field = 'user__username'

See also Django admin list_display property usage .