django-oscar 集成错误答案

【问题标题】：django-oscar integration errordjango-oscar 集成错误
【发布时间】：2015-12-01 15:25:34
【问题描述】：

我将电子商务集成到我的代码中。并遇到产品问题。当我用简单的方式更新我models.py 时

class MyProduct(AbstractProduct):
    pass

甚至使用 AbstractProduct 扩展我的Package 模型并尝试创建迁移，出现下一个错误。

catalogue.Product.product_class: (fields.E304) Reverse accessor for 'Product.product_class' clashes with reverse accessor for 'Package.product_class'.
    HINT: Add or change a related_name argument to the definition for 'Product.product_class' or 'Package.product_class'.
catalogue.Product.product_class: (fields.E305) Reverse query name for 'Product.product_class' clashes with reverse query name for 'Package.product_class'.
    HINT: Add or change a related_name argument to the definition for 'Product.product_class' or 'Package.product_class'.
catalogue.ProductAttributeValue: (fields.E336) The model is used as an intermediate model by 'ckanwrap.Package.attributes', but it does not have a foreign key to 'Package' or 'ProductAttribute'.
catalogue.ProductCategory: (fields.E336) The model is used as an intermediate model by 'ckanwrap.Package.categories', but it does not have a foreign key to 'Package' or 'Category'.
catalogue.ProductRecommendation: (fields.E336) The model is used as an intermediate model by 'ckanwrap.Package.recommended_products', but it does not have a foreign key to 'Package' or 'Product'.
ckanwrap.Package.product_class: (fields.E304) Reverse accessor for 'Package.product_class' clashes with reverse accessor for 'Product.product_class'.
    HINT: Add or change a related_name argument to the definition for 'Package.product_class' or 'Product.product_class'.
ckanwrap.Package.product_class: (fields.E305) Reverse query name for 'Package.product_class' clashes with reverse query name for 'Product.product_class'.
    HINT: Add or change a related_name argument to the definition for 'Package.product_class' or 'Product.product_class'.
ckanwrap.Package.recommended_products: (fields.E335) The model is used as an intermediate model by 'ckanwrap.Package.recommended_products', but it has more than one foreign key to 'Product', which is ambiguous. You must specify which foreign key Django should use via the through_fields keyword argument.
    HINT: If you want to create a recursive relationship, use ForeignKey("self", symmetrical=False, through="ProductRecommendation").

有什么建议吗？

【问题讨论】：

我遇到了同样的问题。您是否找到了导致此问题的原因或解决方法？

标签： python django django-oscar

【解决方案1】：

如果有人仍然遇到这个问题，解决方案是创建一个与 oscar 使用的名称相同的类。在这种情况下，它将是 Product。

from oscar.apps.catalogue.abstract_models import AbstractProduct
from django.db import models


class Product(AbstractProduct):
     additional_field = models.CharField(max_length=200)

from oscar.apps.catalogue.models import *

【讨论】：