fields.E304 Reverse accessor clashes in Django

错误信息

SystemCheckError: System check identified some issues:

ERRORS:
website.Person2Person.friend: (fields.E304) Reverse accessor for 'Person2Person.friend' clashes with reverse accessor for 'Person2Person.person'.
    HINT: Add or change a related_name argument to the definition for 'Person2Person.friend' or 'Person2Person.person'.
website.Person2Person.person: (fields.E304) Reverse accessor for 'Person2Person.person' clashes with reverse accessor for 'Person2Person.friend'.
    HINT: Add or change a related_name argument to the definition for 'Person2Person.person' or 'Person2Person.friend'.

解决方案
添加参数related_name

class Person2Person(models.Model):
    person = models.ForeignKey(Person, related_name='person2persons')
    friend = models.ForeignKey(Person, related_name='friends')

原因:
对同一个类建立多个相同的外键,会出现关系混乱,所以需要建立一个关系名称

https://stackoverflow.com/questions/41595364/fields-e304-reverse-accessor-clashes-in-django

标签：Reverse,fields,Person2Person,related,Django,person,accessor,friend,name
来源： https://blog.csdn.net/weixin_39025679/article/details/114309395