DJANGO：当主键未"id"时，如何在灯具中指定主键

Question

我刚刚更改了模型中的pk名称。

我的模型是这样的：

class Course(LogsMixin, models.Model):
"""Definición del modelo de Proveedor."""
name = models.CharField("Nombre del curso", null=False, default="", max_length=200)
code = models.CharField("Código del curso", null=False, default="", max_length=50)
hours = models.IntegerField(("Número de horas"), null=False, default=0)
price = models.DecimalField(("Precio"), max_digits=6, decimal_places=2, null=False, default=0)
provider = models.ForeignKey(Provider, verbose_name=("Proveedor"), null=True, default=None, on_delete=models.SET_DEFAULT)
active = models.BooleanField("Activo", default=True)

正如你所看到的，我没有指定PK，但我改变了：

class Course(LogsMixin, models.Model):
"""Definición del modelo de Proveedor."""
reference = models.CharField("Referencia", primary_key=True, null=False, default="", max_length=50)
name = models.CharField("Nombre del curso", null=False, default="", max_length=200)
code = models.CharField("Código del curso", null=False, default="", max_length=50)
hours = models.IntegerField(("Número de horas"), null=False, default=0)
price = models.DecimalField(("Precio"), max_digits=6, decimal_places=2, null=False, default=0)
provider = models.ForeignKey(Provider, verbose_name=("Proveedor"), null=True, default=None, on_delete=models.SET_DEFAULT)
active = models.BooleanField("Activo", default=True)

正如你现在所看到的"；参考"；是我的pk，但当我尝试安装这个固定装置时：

[{
"models": "consumptions.course",
"pk": "AD_ADGD008PO",
"fields": {
"name": "ANÁLISIS DE PROBLEMAS Y TOMA DE DECISIONES",
"code": "ADGD008PO",
"price": "21.00",
"hours": "30",
"provider": "P000019",
"active": true
}
},

我收到下一个错误：

Traceback (most recent call last):
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoreserializersjson.py", line 69, in Deserializer
yield from PythonDeserializer(objects, **options)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoreserializerspython.py", line 92, in Deserializer
Model = _get_model(d["model"])
KeyError: 'model'
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 20, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagement__init__.py", line 381, in execute_from_command_line
utility.execute()
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagement__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagementbase.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagementbase.py", line 364, in execute
output = self.handle(*args, **options)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagementcommandsloaddata.py", line 72, in handle
self.loaddata(fixture_labels)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagementcommandsloaddata.py", line 114, in loaddata
self.load_label(fixture_label)
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoremanagementcommandsloaddata.py", line 172, in load_label
for obj in objects:
File "C:Usersaquesada.virtualenvsAVC-dSHgJ7e5libsite-packagesdjangocoreserializersjson.py", line 73, in Deserializer
raise DeserializationError() from exc
django.core.serializers.base.DeserializationError: Problem installing fixture 'C:UsersaquesadaDesktopProyectosAVCconsumptionsfixturescourses.json':

为什么会发生这种情况？

Answer 1

在您的示例中，您使用的是复数"；模型"；而不是"；型号"；在夹具键中。

"models": "consumptions.course",

应该是：

"model": "consumptions.course",