BD Bear

这是一种可以使用onetoonefields解决问题的方法。

模特儿

class DataModel(models.Model):
    name = models.TextField(max_length=100)

    def __str__(self):
        return '%s' % self.name

    def two_fields(self):
        id = self.id
        field1 = ModelData.objects.get(connected_table_id=id).data1
        field2 = ModelData.objects.get(connected_table_id=id).data2
        return '%s %s' % (field1, field2)


class ModelData(models.Model):
    data1 = models.IntegerField()
    data2 = models.IntegerField()
    connected_table = models.OneToOneField(DataModel,
                                           related_name="DataModel",
                                           on_delete=models.CASCADE,
                                           )

    def extramethod(self):
        code = self.connected_table_id
        format_code = DataModel.objects.get(id=code).name
        return format_code

行政管理部门

@admin.register(ModelData)
class ModelDataAdmin(admin.ModelAdmin):
    list_display = ('id', 'data1', 'data2', 'connected_table', 'extramethod',)

@admin.register(DataModel)
class ModelDataAdmin(admin.ModelAdmin):
    list_display = ('name', 'two_fields',)