修改登录时的验证方式

serializers.py

首先要写一份对应user的序列化类

from django.contrib.auth import get_user_model
from rest_framework import serializers
# 请务必使用get_user_model来获取django的user表
User = get_user_model()
class AuthUserSerializer(serializers.ModelSerializer):
    username = serializers.CharField(max_length=15)
    phone = serializers.CharField(max_length=11, min_length=11, error_messages={
        "errorMsg": 'check your phone length, that must be 11'
    }, required=False)
    password = serializers.CharField(max_length=128, required=True)
    class Meta:
        model = User
        fields = ["username", "phone", "password"]
        # fields = '__all__' # fileds设置为'__all__'时，返回表模型所有字段

view.py

from django.db.models import Q
from rest_framework.exceptions import AuthenticationFailed
from django.contrib.auth import get_user_model
from django.contrib.auth.backends import ModelBackend
# 同上
User = get_user_model()
# 重写验证方式需要继承ModelBackend类
class CustomBackend(ModelBackend):
    # 重写验证方法 这里的示例是验证username或者phone
    def authenticate(self, request, username=None, password=None, **kwargs):
        user = User.objects.get(Q(username=username) | Q(phone=username))
        if not user:
            raise AuthenticationFailed('用户不存在')
        if user.check_password(password):
            return user
        raise AuthenticationFailed('密码错误')

settings.py

AUTHENTICATION_BACKENDS = (
    'User.views.CustomBackend',
)

最后不要忘了在settings中修改默认的验证方法所在位置哦。