grails - 在 GORM 中重命名复合外键

Question

我有以下类(class):

class Catalog {
  static mapping = {
    id composite:['name', 'manufacturer']
    columns {
      name column:'cat_name'
      manufacturer column:'manuf_id'
    }
  }
  String name
  Manufacturer manufacturer
}

class Order {
  static mapping = {
    columns {
      // How to rename foreign keys as cat_name, manuf_id?
    }
  }
  Catalog catalog // creates catalog_name, catalog_manufacturer_name
}

目前，Order 表是用属性 catalog_name 和 catalog_manufacturer_name(引用 Catalog 表的复合主键)生成的。

我需要将这些生成的列重命名为 Order 表中的 cat_name 和 manuf_id 以使用现有数据库。这可能吗？如果可能，如何实现？

Answer 1

这解决了我的问题(grails 2.0.4):

http://jira.grails.org/browse/GRAILS-4504?focusedCommentId=64996&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-64996

我的情况:

class GroupMessage implements Serializable {

    Group group
    Integer messageId

    static mapping = {
        datasources(['ds1'])
        table 't_group_msg'
        version false
        id composite: ['group', 'messageId'], generator: 'assigned'
        group column:'grpid'
        messageId column:'msgid', type:int
    }
}

class GroupMessageDetail implements Serializable {

    GroupMessage groupMessage
    Integer detailId
    String message
    String url

    static mapping = {
        datasources(['ds1'])
        table 't_group_msg_det'
        version false
        id composite: ['groupMessage', 'detailId'], generator: 'assigned'
        columns {
            groupMessage {
                column name: 'grpid'
                column name: 'msgid'
            }
            detailId column:'id', type:int
            message column:'sms'
            url column:'url'
       }
}