python - 将自定义字段添加到默认用户模型 - 如果扩展它，我应该进行迁移吗？

Question

我一直在尝试使用 XP 字段扩展用户模型。写完代码(我认为是正确的)后，我决定尝试一下。

不幸的是，我收到此错误:

ProgrammingError at /register/
relation "accounts_userprofile" does not exist
LINE 1: INSERT INTO "accounts_userprofile" ("user_id", "xp") VALUES ...
                 ^

我认为发生这种情况是因为我扩展了用户模型，但没有运行迁移。这是我的代码: View .py

from django.shortcuts import render, redirect
from django.contrib import messages
from django.contrib.auth.models import User
from django.contrib import auth
from .models import UserProfile

# Create your views here.
def login(req):
    if req.method == 'POST':
        username = req.POST['username']
        password = req.POST['password']
        user = auth.authenticate(username=username, password=password)
        if user is not None:
            auth.login(req, user)
            messages.success(req, 'Acum eşti logat')
            return redirect('dashboard')
        else:
            messages.error(req, 'Numele de utilizator sau parola sunt greşite')
            return redirect('login')
        return
    else:
        return render(req, "../templates/pagini/login.html")
def register(req):
    if req.method == 'POST':
        first_name = req.POST['first_name']
        last_name = req.POST['last_name']
        username = req.POST['username']
        email = req.POST['email']
        password = req.POST['password']
        password2 = req.POST['password2']

        if password == password2:
            if User.objects.filter(username=username).exists():
                messages.error(req, 'Numele de utilizator deja există')
                return redirect('register')
            else:
                if User.objects.filter(email=email).exists():
                    messages.error(req, 'E-mailul este deja folosit')
                    return redirect('register')
                else:
                    user = User.objects.create_user(username=username, password=password, email=email, first_name=first_name, last_name=last_name)
                    user.UserProfile.xp = 0
                    user.save()
                    messages.success(req, 'Acum eşti logat')
                    return redirect('login')
        else:
            messages.error(req, 'Parolele diferă')
            return redirect('register')
    else:
        return render(req, "../templates/pagini/register.html")
def dashboard(req):
    return render(req, "../templates/pagini/dashboard.html")

模型.py

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver

class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    xp = models.IntegerField(default=0)

@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        UserProfile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

当我运行 python manage.py showmigrations 时，我看不到此应用程序的任何迁移 - 这是我以“accounts”名称创建的应用程序。

我认为我错过了一些东西，因为当我有另一个模型时，我进行了迁移，但它没有按预期工作。现在，即使我从中删除了迁移文件夹，我也看不到此应用程序的任何迁移。

那么错误是否来自未运行“迁移”？如果是，我应该如何运行它，因为我看不到它的任何迁移。

谢谢。

Answer 1

你需要做

python manage.py makemigrations <myapp>您的应用程序的名称在哪里， 这将使 django 检测到模型的更改

python manage.py migrate将更改提交到数据库