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

我一直在尝试用XP字段扩展用户模型。在编写了代码（我认为它是正确的）之后，我决定尝试一下。你知道吗

不幸的是，我得到了这个错误：

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

我认为这是因为我扩展了用户模型，但没有运行迁移。 这是我的密码： 视图.py你知道吗

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")

你知道吗型号.py你知道吗

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时管理.pyshowmigrations我看不到此应用程序的任何迁移-这是我以“帐户”的名称创建的应用程序。你知道吗

我想我遗漏了一些东西，因为当我有另一个模型的时候，我做了一个迁移，但它没有像预期的那样工作。现在我看不到此应用的任何迁移，即使我从中删除了migrations文件夹。你知道吗

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

谢谢。你知道吗

Answer 1

你需要做什么

python manage.py makemigrations <myapp>其中是应用程序的名称， 这将使django检测到对模型的更改

python manage.py migrate将更改提交到数据库