Django-admin 对外部对象的验证

Question

我有一个 Team 模型和 Staff 模型（对 Team 来说是外来的）。每个团队对象可以关联 1 - 10 个员工对象。

每个员工对象都有一个布尔字段来指示 he/she 是否是团队协调员。

我如何在 django 管理页面中确保当管理员用户输入团队信息以及相关员工信息（内联）时，he/she 必须至少选择一个团队协调员（一个团队中的所有员工都可以）团队都是协调员，但不能为零）。

感谢您的建议。

models.py

class Team(models.Model):
team_id = models.AutoField(primary_key=True, verbose_name='Team ID')
team_name = models.CharField(max_length=100, verbose_name='Team Name')
def __str__(self):
    return self.team_name
class Meta:
    verbose_name='Team'

class Staff(models.Model):
    staff_id = models.AutoField(primary_key=True)
    team_id = models.ForeignKey(Team)
    staff_name = models.CharField(max_length=100, verbose_name='Staff Name')
    is_team_coord = models.BooleanField(verbose_name='Is Team Coordinator', default=False)
    def __str__(self):
        return self.staff_name
    class Meta:
        verbose_name='Staff'

admin.py

class StaffInLine(admin.TabularInline):
model = Staff
def get_max_num(self, request, obj=None, **kwargs):
    return 10
def get_min_num(self, request, obj=None, **kwargs):
    return 1

class TeamAdmin(admin.ModelAdmin):
    inlines = [StaffInLine]

Answer 1

参考这个link我自己找到了答案 Inline Form Validation in Django

完整的解决方案是：

forms.py

class StaffInLineFormSet(forms.models.BaseInlineFormSet):
    def clean(self):
        count = 0
        for form in self.forms:
            try:
                if form.cleaned_data.get('is_team_coord') is True:
                    count += 1
            except AttributeError:
                pass
        if count == 0:
            raise forms.ValidationError('You must choose at least one Team Coordinator')

admin.py

class StaffInLine(admin.TabularInline):
    model = Staff
    formset = StaffInlineFormSet
    def get_max_num(self, request, obj=None, **kwargs):
        return 10
    def get_min_num(self, request, obj=None, **kwargs):
        return 1

Django-admin 对外部对象的验证

Django-admin validation on Foreign object

python

django

django-admin

python-2.7