DataMapper和Codeigniter-如何完全管理多对多关系
[英]DataMapper and Codeigniter - how to fully manage a many-to-many relationship
问题描述
I have the following relationship 
我有以下关系
CType has many Field CType有很多字段
Field has many Ctype 字段有很多Ctype
and of course the tables used are fields, ctypes, and ctypes_fields. 当然，使用的表是字段，ctypes和ctypes_fields。 Normally, the ctypes_fields table should contain only ids referencing the other two tables. 通常，ctypes_fields表应仅包含引用其他两个表的ID。 However, i'd like to put there a "options" field that will contain some content for the concrete instance only. 但是，我想在此处放置一个“选项”字段，其中仅包含一些具体实例的内容。 I walked through all DataMapper tuts but I couldn't find relevant info on how I could extract these specific values (the ones in the relation table). 我遍历了所有DataMapper Tut，但找不到有关如何提取这些特定值（关系表中的值）的相关信息。
Should I create a separate model for this relation table or there is a clever way to do this? 我应该为此关系表创建一个单独的模型，还是有一个聪明的方法来做到这一点？
1 个解决方案
解决方案1
1 已采纳 2010-03-28 02:46:59
Datamapper OverZealous Edition (DMZ) allows you to do this. Datamapper OverZealous Edition（DMZ）允许您执行此操作。 It should be compatible with your existing Datamapper application. 它应该与您现有的Datamapper应用程序兼容。 http://codeigniter.com/forums/viewthread/149388/ http://codeigniter.com/forums/viewthread/149388/
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