多对多字段创建的所有实例都作为关系添加到声明关系的模型中

如何解决多对多字段创建的所有实例都作为关系添加到声明关系的模型中

我正在使用 Django 多态，我认为这可能是我的困境背后的原因。

我想通过要添加的外键将模型的一些实例连接到其他三个实例，而其他实例则没有，我不知道该怎么做，是否需要中间步骤，我该怎么办？

这是我的模型：

from django.db import models
from polymorphic.models import polymorphicModel
from django.contrib.contenttypes.fields import GenericRelation
from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType

class usermodel(models.Model):
    MEMBERSHIP_TYPE = [
    ('NM','norMAL'),('PT','PLATA'),('OR','ORO'),('PL','PLATINO'),]
    id = models.AutoField(primary_key=True)
    username = models.CharField(max_length=100,unique=True)
    photo = models.ImageField(upload_to='images/',blank=True)
    address = models.TextField()
    client_type = models.CharField(max_length=2,choices=MEMBERSHIP_TYPE,default= 'NM')

    def __unicode__(self):
        return self.name

class ArticleModel(models.Model):
    id = models.AutoField(primary_key=True)
    code = models.IntegerField(unique=True)
    description = models.TextField()
    
    def __str__(self):
        return str(self.code)


class OrderModel(models.Model):
    id = models.AutoField(primary_key=True)
    client = models.ForeignKey('usermodel',on_delete=models.CASCADE)
    gen_time = models.DateTimeField(auto_Now_add=True)
    gen_supplied = models.DateTimeField(null=True,blank=True)
    urgent = models.BooleanField()
    order_to = models.ForeignKey('OrderToModel',on_delete=models.CASCADE)
    article = models.ForeignKey('ArticleModel',on_delete=models.CASCADE)
    quantity= models.IntegerField()

class OrderToModel(polymorphicModel):
    id = models.AutoField(primary_key=True)

class WarehouseModel(OrderToModel):
    warehouse_num = models.IntegerField(unique=True)
    name = models.CharField(max_length=100)
    address = models.TextField()
    articles = models.ManyToManyField(ArticleModel,blank=True)
    def __str__(self):
        return "Warehouse"+ str(self.warehouse_num)

class StoreOrderModel(OrderToModel):
    reference = models.IntegerField(unique=True)
    store_num = models.ForeignKey('StoreModel',on_delete=models.CASCADE)
    def __str__(self):
        return str(self.reference)

class StoreModel(models.Model):
    store_num = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=100)
    address = models.TextField()
    articles = models.ManyToManyField(ArticleModel,blank=True)
    def __str__(self):
        return str(self.store_num)

class BusinessOrderModel(OrderToModel):
    reference = models.IntegerField(unique=True)
    business_num = models.ForeignKey('BusinessModel',on_delete=models.CASCADE)
    def __str__(self):
        return str(self.reference)
    
class BusinessModel(models.Model):
    Business_num = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=100)
    address = models.TextField()
    articles = models.ManyToManyField(ArticleModel,blank=True)
    def __str__(self):
        return str(self.Business_num)

class DetailModel(models.Model):
    id = models.AutoField(primary_key=True)
    detail = models.TextField()
    order = models.ForeignKey('BusinessOrderModel',related_name="details",on_delete=models.CASCADE)

这是我设置管理页面的方式（这可能是问题的一部分，因为我尝试执行的所有操作都是通过管理执行的）：

from django.contrib import admin

from .models import OrderModel,usermodel,ArticleModel,\
     WarehouseModel,StoreModel,BusinessModel,DetailModel,\
         StoreOrderModel,BusinessOrderModel

class UserAdmin(admin.ModelAdmin):
    pass
admin.site.register(usermodel,UserAdmin)

class DetailInline(admin.TabularInline):
    model = DetailModel


class OrderAdmin(admin.ModelAdmin):
    pass
admin.site.register(OrderModel,OrderAdmin)

class ArticleAdmin(admin.ModelAdmin):
    pass
admin.site.register(ArticleModel,ArticleAdmin)

class WarehouseAdmin(admin.ModelAdmin):
    pass
admin.site.register(WarehouseModel,WarehouseAdmin)

class StoreAdmin(admin.ModelAdmin):
    pass
admin.site.register(StoreModel,StoreAdmin)

class BusinessAdmin(admin.ModelAdmin):
    pass
admin.site.register(BusinessModel,BusinessAdmin)

class StoreOrderAdmin(admin.ModelAdmin):
    pass
admin.site.register(StoreOrderModel,StoreOrderAdmin)

class BusinessOrderAdmin(admin.ModelAdmin):
    inlines = (DetailInline,)
    pass
admin.site.register(BusinessOrderModel,BusinessOrderAdmin)

class DetailAdmin(admin.ModelAdmin):
    pass
admin.site.register(DetailModel,DetailAdmin)

我不知道我做错了什么。我真的觉得卡住了。任何帮助将不胜感激。