Django创建新模型存储现有用户及其数据的记录

Question

I have created a model Customer:

class Customer(models.Model):
    name = models.CharField(max_length=20, db_index=True)
    address = models.CharField(max_length=100, blank=True)
    email = models.EmailField(max_length=100, blank=True)
    users = models.ManyToManyField(User, db_index=True)
    phone = models.IntegerFeild(max_length=100, blank=True)

as well as a new model called XYZ:

class XYZ(models.Model):
        customer = models.OneToOneFieldOneToOneField(Customer, on_delete=models.CASCADE)
        abc = models.CharField(max_length=10, default='x')
        user = models.OneToOneField(User, on_delete=models.CASCADE)

How should I insert data into this XYZ table for an existing Customer, without using manually Insert into the query? Is there any Django query or way to insert the existing customer records in the XYZ table?

Answer 1

Here's one way of doing it, As it is unclear how your data from XYZ is stored so I'm assuming static values.

Go into django shell. You can do this by running python manage.py shell

Now import your models

from yourapp.models import Customer, XYZ

Also import your user model

from django.contrib.auth.models import User

fetch the user object you want to add.

user = User.objects.get(username='your_username')

If you want admins you can do this

superusers = User.objects.filter(is_superuser=True) # This will get all the admins of your website. But beware this is a queryset(ie list of user objects) if there is more than one admin for your site.

now you can create an entry for each of the customer object into your XYZ table.

Finally, depending on your requirement you can run this loop.

for customer in Customer.objects.all():
    XYZ.objects.create(customer=customer, abc="your string", user=user)

Answer 2

I think what you should do is these steps:

1. python manage.py shell

2. query all Customer

   from path.to.your.models import Customer

   customers = Customer.objects.filter(users=

3. insert all XYZ

   for c in customers:

    if c.users.is_admin: xyz = XYZ( customer=c user=c.users ) xyz.save()