我有一个Django模型,如下所示:在Django的模型deg_course_cat表 from django.db import models
from mptt.models import MPTTModel, TreeForeignKey
class deg_course_cat(models.Model):
degree_code = models.CharField(ma
I \已经得到了类似这个话题的一个问题Django-MPTT, how to 我已经添加了 'MPTT' 到INSTALLED_APPS 但钢我有这样的错误 TemplateDoesNotExist at /admin/app/category/
admin/mptt_change_list.html
Request Method: GET
Request URL: http://12
我无法在django admin中创建对象。它引发了错误: ValueError at /admin/app/category/add/
"<Category: >" needs to have a value for field "from_category" before this many-to-many relationship can be used.
Request Method: