命令对象没有meta属性，Django管理命令

Question

我正在尝试运行一次性管理命令来预填充数据库。

这是模型：

class ZipCode(models.Model):
    zip_code = models.CharField(max_length=7)
    latitude = models.DecimalField(decimal_places=6, max_digits =12)
    longitude = models.DecimalField(decimal_places=6, max_digits =12)

这里是管理命令：

  from django.core.management.base import BaseCommand
    from core.models import ZipCode

    class Command(BaseCommand):
        def populate_db(self):
            zip_code_object = ZipCode(zip_code='10566', latitude = 10.2, longitude= 43.4) #test data to see if I could get it working
            ZipCode.save(self)

        def handle(self, *args, **options):
            self.populate_db()

但是当我运行python3.6 manage.py populate_zip_code_db它returns

 File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/django/db/models/base.py", line 741, in save
    for field in self._meta.concrete_fields:
AttributeError: 'Command' object has no attribute '_meta'

有人知道如何让它工作吗？刚发现管理命令，一头雾水

Answer 1

而不是 ZipCode.save(self) 应该是 zip_code_object.save():

class Command(BaseCommand):
    def populate_db(self):
        zip_code_object = ZipCode(zip_code='10566', latitude = 10.2, longitude= 43.4) #test data to see if I could get it working
        zip_code_object.save()

    def handle(self, *args, **options):
        self.populate_db()

命令对象没有meta属性，Django管理命令

Command object has no attribute meta, Django management commands

python

django

django-managers

django-manage.py

django-management-command