Django [TypeError：__init __（）获得了意外的关键字参数'choice']在我的模型中添加选择时发生

Question

我有一个雷达模型，它需要有4种可能的模式。我遵循了django网站（https://docs.djangoproject.com/en/1.11/ref/models/fields/#choices）上的文档。但是我仍然遇到错误。我将在下面发布我的模型文件。如果您认为我可能需要发布其他任何代码，请告诉我。

from django.db import models


# Create your models here.

class Radar(models.Model):
    id = models.AutoField(primary_key=True)

    SCAN = "SC"
    ON = "ON"
    OFF = "OF"
    STANDBY = "ST"
    MODE_CHOICES = (
        (SCAN, "scan"),
        (ON, "on"),
        (OFF, "off"),
        (STANDBY, "standby"),
    )
    mode_choice = models.CharField(
        max_length=2,
        choice=MODE_CHOICES,
        default=OFF,
    )

    ip_address = models.CharField(max_length=200)
    start_azimuth_angle = models.FloatField(default=0)
    end_azimuth_angle = models.FloatField(default=0)
    azimuth_scan_speed = models.FloatField(default=0)
    azimuth_increment = models.FloatField(default=0)

    start_elevation_angle = models.FloatField(default=0)
    end_elevation_angle = models.FloatField(default=0)
    elevation_scan_speed = models.FloatField(default=0)
    elevation_increment = models.FloatField(default=0)

    def __str__(self):
        string = 'RadarID : %s   ip: %s ' % (self.id, self.ip_address)
        return string

Answer 1

您的代码中有错字：

正确的参数是choice，而不是choices

mode_choice = models.CharField(
        max_length=2,
        choices=MODE_CHOICES,
        default=OFF,
    )

Answer 2

将选项与CharField一起使用的

option是options。将选择更改为选择。 https://docs.djangoproject.com/en/2.0/ref/models/fields/#choices