Question

我是Django的新手，正在尝试将社交登录选项添加到我正在从事的项目中。我目前正在使用class CountByUserGraph extends React.Component { this.massPopChart; constructor() { super(); this.state = { selectedOption: "A" }; } componentDidMount() { this.makeApiCall(); } makeApiCall = () => { countByUserGraph(this.state.selectedOption) // API CALL .then(response => { // recieves data this.getChartData(data); }) .catch(err => console.log(err)); }; getChartData = data => { let myChart = document.getElementById("myChart0").getContext("2d"); const CountValue = data.map(a => a.countValue); const CountMonth = data.map(a => a.month); var data = { labels: CountMonth, datasets: [ { label: "Count", data: CountValue } ] }; var option = { responsive: true // Options }; if(this.massPopChart){ massPopChart.data = data; //massPopChart.config.data = data; //use this if above code does not work massPopChart.update(); } else{ this.massPopChart = new Chart.Line(myChart, { data: data, options: option }); } }; handleOptionChange = changeEvent => { this.setState({ selectedOption: changeEvent.target.value }, function() { this.makeApiCall(); }); }; render() { return ( <div> <form className="graph-filter"> <div> <input type="radio" id="A" name="A" checked={this.state.selectedOption === "A"} onClick={this.handleOptionChange} value="A" /> <label htmlFor="A">A</label> </div> <div> <input type="radio" id="B" name="B" checked={this.state.selectedOption === "B"} onClick={this.handleOptionChange} value="B" /> <label htmlFor="B">B</label> </div> </form> <canvas id="myChart0"></canvas> </div> ); } }来实现相同目的。目前，我仅将Google登录名集成到我的项目中。一切正常。我已经为我的项目创建了一个自定义用户模型，并使用电子邮件作为用户名。当用户尝试使用我提供的“注册模板”进行注册时，可以毫无问题地从数据库中删除该用户。但是，如果我尝试从管理面板中删除使用django-allauth的Google选项登录的任何用户，则会收到Django-Allauth错误。我重置所有内容的唯一方法是简单地删除模型并重做所有内容。下面是我的模型的样子。我正在使用Django 3.0和最新版本的Django-Allauth。我不确定如何解决这个问题。任何帮助，将不胜感激。

models.py

__str__ returned non-string (type CustomUser)

Settings.py

class CustomUser(AbstractBaseUser):
    email = models.EmailField(unique=True, max_length=100)
    first_name = models.CharField(max_length=35)
    last_name = models.CharField(max_length=35)
    mobile = models.CharField(max_length=11, blank=True, default='')
    city = models.CharField(max_length=35, blank=True, default='')

    USERNAME_FIELD = 'email'

    REQUIRED_FIELDS = ['first_name', 'last_name']

    objects = CustomUserManager()

    def __str__(self):
        return self.email

    def get_full_name(self):
        if self.first_name and self.last_name:
            return self.first_name + " " + self.last_name

    def get_short_name(self):
        if self.first_name:
            return self.first_name

    def has_perm(self, perm, obj=None):
        """
        Does the user have a specific permission?
        """
        # Simplest possible answer: Yes, always
        return True

    def has_module_perms(self, app_label):
        """
        Does the user have permissions to view the app `app_label`?
        """
        # Simplest possible answer: Yes, always
        return True

    def get_absolute_url(self):
        return reverse('users-profile', args=[str(self.id)])

urls.py

# Application definition
INSTALLED_APPS = [
    # Default Apps
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.sites',  # Added

    # User Apps
    'users.apps.UsersConfig',
    'crispy_forms',
    'allauth',
    'allauth.account',
    'allauth.socialaccount',
    'allauth.socialaccount.providers.google',
]

AUTHENTICATION_BACKENDS = (
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',  # Added
)

# Required for Django-Allauth
SITE_ID = 1

# Required for Django-Allauth
ACCOUNT_USER_MODEL_USERNAME_FIELD = None
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_USERNAME_REQUIRED = False
ACCOUNT_AUTHENTICATION_METHOD = 'email'
ACCOUNT_UNIQUE_EMAIL = True

以下是错误回溯：

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('users.urls')),
    path('accounts/', include('allauth.urls')),
]

Answer 1

AbstractBaseUser有一个__str__方法，该方法返回模型中USERNAME_FIELD上指定的字段。您可以在Github上查看源代码。

因此，在指定自定义USERNAME_FIELD之后，您可以删除自己的__str__方法：

class CustomUser(AbstractBaseUser):
    email = models.EmailField(unique=True, max_length=100)
    first_name = models.CharField(max_length=35)
    last_name = models.CharField(max_length=35)
    mobile = models.CharField(max_length=11, blank=True, default='')
    city = models.CharField(max_length=35, blank=True, default='')

    USERNAME_FIELD = 'email'

还要确保您installed and configured the packaged properly。

无法从使用Django-Allauth创建的管理控制台中删除用户

1 个答案: