表结构

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

# Create your models here.

class BigCourse(models.Model):
    """大课"""
    name = models.CharField(max_length=128)
    # 不会创建额外列，帮助你快速操作
    price_policy = GenericRelation("PricePolicy")

class SmallCourse(models.Model):
    """小课"""
    name = models.CharField(max_length=128)

class PricePolicy(models.Model):
    """价格策略"""
    period = models.IntegerField(verbose_name='

标签：models,price,object,Django,content,contenttypes,objects,PricePolicy,组件	

From： https://www.cnblogs.com/fuminer/p/16861873.html