i am getting this error when i try to search in admin panel
FieldError at /admin/school/center/
Unsupported lookup 'icontains' for ForeignKey or join on the field not
permitted.
admin.py
@admin.register(Center)
class CenterAdmin(ImportExportModelAdmin, admin.ModelAdmin):
list_display = ('id', 'state', 'district', 'taluka', 'center',)
list_filter = ('state', 'district', 'taluka','center')
search_fields = ('state','district', 'taluka','center',)
model.py
class Center (models.Model):
state = models.ForeignKey(State, on_delete=models.CASCADE)
district = ChainedForeignKey(District,
chained_field='state',
chained_model_field='state',show_all=False,
auto_choose=True, sort=True)
taluka = ChainedForeignKey(Taluka,
chained_field='district',
chained_model_field='district',show_all=False, auto_choose=True, sort=True)
center = models.CharField(max_length=200)
def str(self):
return self.center
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