教义在三个表之间的多对多关系
[英]Doctrine Many-to-Many relationship between three tables
问题描述
I have three tables: note , user and tag . 
我有三个表： note ， user和tag 。 Following is the diagram of the relationship between those tables: 以下是这些表之间的关系图：
alt text http://www.ilabs.lt/share/database.jpg 替代文字http://www.ilabs.lt/share/database.jpg
User can have many Notes and Tags , Note can have many Users and Tags , Tag can have many Users and many Notes . 用户可以有很多注释和标签 ， 注释可以有很多用户和标记 ， 标签可以有许多用户和很多注释 。 I have no problem setting many-to-many relationship between two tables, but can't manage to relate three tables. 我在设置两个表之间的多对多关系方面没有问题，但是无法关联三个表。 How can I describe this relationship in Doctrine? 我该如何在学说中描述这种关系？
1 个解决方案
解决方案1
1 2010-07-25 18:26:31
You should make NoteUserTag its own Record/Entity with an additional surrogate ID: 您应该将NoteUserTag设置为其自己的Record / Entity，并附加一个代理ID：
note_user_tag_id
note_id
user_id
tag_id
This is probably the best to handle this situation. 这可能是处理这种情况的最佳方法。
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