Django：当我尝试在 Django 中迁移时，我收到此错误：“AttributeError：‘bool’对象没有属性‘startswith’”

Question

我收到这个错误：“AttributeError: 'bool' object has no attribute 'startswith'” 当我尝试在 django 中迁移时

这是我的代码：

from django.db import models

# Create your models here.
from django.db import models
from django.contrib.auth.models import User

# Create your models here.
class Category(models.Model):
    slug = models.SlugField()
    title = models.CharField(max_length=255, db_index=True)
 
class MenuItem(models.Model):
    title = models.CharField(max_length=255, db_index=True)
    price = models.DecimalField(max_digits=6, decimal_places=2, db_index=True)
    featured = models.BooleanField(db_index=True, default=False)
    category = models.ForeignKey(Category, on_delete=models.PROTECT)
 
 
class Cart(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    menuitem = models.ForeignKey(MenuItem, on_delete=models.CASCADE)
    quantity = models.SmallIntegerField()
    unit_price = models.DecimalField(max_digits=6, decimal_places=2)
    price = models.DecimalField(max_digits=6, decimal_places=2)
 
    class Meta:
        unique_together = ('menuitem', 'user')
  
class Order(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    delivery_crew = models.ForeignKey(User, on_delete=models.SET_NULL, related_name='delivery_crew', null=True)
    status = models.BooleanField(db_index=True, default=False)
    total = models.DecimalField(max_digits=6, decimal_places=2)
    date = models.DateField(db_column=True)
 
class OrderItem(models.Model):
    order = models.ForeignKey(Order, on_delete=models.CASCADE)
    menuitem = models.ForeignKey(MenuItem, on_delete=models.CASCADE)
    quantity = models.SmallIntegerField()
    unit_price = models.DecimalField(max_digits=6, decimal_places=2)
    price = models.DecimalField(max_digits=6, decimal_places=2)

    class Meta:
        unique_together = ('order', 'menuitem')

我试过删除旧的迁移并再次运行它但是没有用