我有以下models.py
from django.db import models
import datetime
class Build(models.Model):
build_name = models.CharField(max_length=60)
description = models.CharField(max_length=140)
parts = models.ManyToManyField('Part')
def __unicode__(self):
return self.build_name
class Part(models.Model):
name = models.CharField(max_length=70)
cost_usd = models.DecimalField(5, 2)
type_of = models.CharField(max_length=5)
supported_builds = models.ManyToManyField(Build)
def __unicode__(self):
return self.name
class OrderBuild(models.Model):
parent = models.ForeignKey(Build)
custom_parts = models.ManyToManyField(Part)
class PriceCache(models.Model):
price = models.DecimalField(4, 2)
time_fetched = models.DateTimeField(default=datetime.datetime.now())
我试过一一注释每一行并重新运行,似乎没有一行会导致这个错误。唯一一次成功同步是当我在模型类中注释掉所有内容时。
有谁知道是什么导致了这个错误,我该如何解决?