django-管理模型從模型中的另一個字段將值分配給limit_choices_to

Question

我擴展了管理模型，因此對於每位工作人員，我只能分配其他客戶（如果他們屬於同一組）。

class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)     
    is_manager = models.BooleanField(default=False)
    group_account = models.CharField(max_length=3,blank=True,null=True)
    clients_assigned = models.ManyToManyField(User, limit_choices_to = Q(groups__groupaccount__group_account=group_account),blank=True,null=True,related_name='+')

class UserProfileInline(admin.StackedInline):
    model = UserProfile
    verbose_name = "User extra"
    verbose_name_plural = "extra"
    filter_horizontal = ('clients_assigned', )
def save_model(self, request, obj, form, change):
    return super().save_model(request, obj, form, change)

class UserAdmin(BaseUserAdmin):
inlines = [UserProfileInline, ]

def get_form(self, request, obj=None, **kwargs):
    #permissions reduce for regular staff 
     if (not request.user.is_superuser):
         self.exclude = ("app")
         self.exclude = ("user_permissions")
         ## Dynamically overriding
         #self.fieldsets[2][1]["fields"] = ('is_active', 'is_staff','is_superuser','groups')
         self.fieldsets[2][1]["fields"] = ('is_active', 'is_staff')
     form = super(UserAdmin,self).get_form(request, obj, **kwargs)
     return form

並擴展了組管理員模型

class GroupAccount(models.Model):
group_account = models.CharField(,max_length=3,blank=True,null=True)
group = models.OneToOneField(Group,blank=True,null=True)
def save(self, *args, **kwargs):
    super(GroupAccount, self).save(*args, **kwargs)

---

我試圖做的只是通過每個經理用戶及其組指示器（group_account字段）限制每個客戶的客戶列表，這意味着可用的客戶列表是與他自己具有相同特定組的客戶列表，例如“ 555”

當數據庫中的group_account ='555'時，groups__groupaccount__group_account = group_account的結果為空
但是如果我將其硬編碼更改為：groups__groupaccount__group_account ='555'，則會返回相關結果。
那有可能和/或其他選擇嗎？

Django 1.9
謝謝您的幫助

Answer 1

您應該自定義StackInline的formfield_for_foreignkey方法

class UserProfileInline(admin.StackedInline):
    def formfield_for_foreignkey(self, db_field, request=None, **kwargs):
        field = super(UserProfileInline, self).formfield_for_foreignkey(db_field, request, **kwargs)
        if db_field.name == 'clients_assigned':
            u = request.user
            if not u.is_superuser:
                field.queryset = field.queryset.filter(groups__in=u.groups.all())
        return field