django模型，其中包含另一个模型的列表 [英] django models that contains list of another model

问题描述

我正在尝试制作一个Django模型，该模型可以将另一个模型的列表作为属性

I am trying to make a django model that can have a list of another model as an attribute

def author:
    name = charfield...
    list_of_books = ______________

def book:
    name = charfield...

我希望作者能够拥有他写过的书的清单.而且我想知道如何将一本书添加到作者列表中.

I want an author to be able to have a list of books he has written. And I would like to know how I can add a book to the authors list of books.

我看过foreignKey，但是看来它只能容纳一个对象.

I have seen foreignKey, but It seems like that it only to hold one object.

推荐答案

在另一个方向上使用ForeignKey.书籍应包含作者的ForeignKey，默认情况下，作者将包含成员book_set，该成员具有与该作者相关联的所有书籍的列表.

Use a ForeignKey in the other direction. book should contain a ForeignKey to author, and, by default, author will then contain the member book_set that has a list of all books that are associated with that author.

如果您打算让一本书拥有不止一位作者，那么ManyToManyField会更合适.

If you intend for a book to be able to have more than one author, a ManyToManyField would be more appropriate.

要查看特定作者的所有书籍，您需要使用author.book_set.all()

To see all the books by a particular author, you'd want to use author.book_set.all()

此页面包含使用图书，作者，和出版商之间，作者和书籍之间的关系表示为ManyToManyField.

This page contains an example of a database that uses books, authors, and publishers, where the relationship between authors and books is represented as a ManyToManyField.

这篇关于django模型，其中包含另一个模型的列表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！