Django之 ArrayAgg与Admin技巧学习

name = models.CharField(max_length=64, choices = (('0','file1'),('0','file1')))

name = models.CharField(max_length=64)

class RouteForm(forms.ModelForm):
    class Meta:
        widgets = {
            'name': forms.Select(),
        }
class RouteAdmin(TreeAdmin):
    form = RouteForm
    def formfield_for_dbfield(self, db_field, request, **kwargs):
        if db_field.name == 'name':
            choices = TextChoices(
                'RouteName',
                get_files()
            )
            kwargs['widget'].choices = choices.choices
        return super().formfield_for_dbfield(db_field, request, **kwargs)

class Item(models.Model):  
    name = models.CharField(max_length=20)
class A(models.Model):  
    name = models.CharField(max_length=20)
    items = models.ManyToManyField(to=Item)

[
    {
        "id": 1,
        "name": "名称1",
        "item_list": [ 410,415,416]
    },
    {
        "id": 2,
        "name": "名称2",
        "item_list": [ 411,415,416]
    },
]

A.objects.annotate(
            item_list=ArrayAgg('items',distinct=True)).values(
            'id', 'name', 'item_list')