Question

我的models.py看起来像那样（部分）：

class GalleryItem(models.Model):

    gallery = models.ForeignKey(Gallery)
    content_type = models.ForeignKey(ContentType)
    object_id = models.PositiveIntegerField()
    content_object = generic.GenericForeignKey('content_type', 'object_id')

    def __unicode__(self):
        return str(self.object_id)

content_object可以指向任何模型。我想将这种模型的值压缩到一个表单字段中。我的表格看起来像这样：

class GalleryAdminForm(ModelForm):

    content_object = TextInput()

    def __init__(self, *args, **kwargs):
        """

        """
        super(GalleryAdminForm, self).__init__(*args, **kwargs)

    class Meta:
        model = GalleryItem

有可能吗？我应该在哪里上钩？

Answer 1

确定。我想到了。但我认为这是一种肮脏的方式：

class GalleryAdminForm(ModelForm):

    content_object = CharField()

    def __init__(self, *args, **kwargs):

        super(GalleryAdminForm, self).__init__(*args, **kwargs)
        related = self.instance.content_object
        if related:
            self.initial['content_object'] = related.title+related.file.__unicode__()

    class Meta:
        model = GalleryItem

Django：是否可以在自定义ModelForm中从content_object模型字段中压缩带有值的表单字段？

1 个答案: