我正在尝试在单击时添加一个唯一条目,以便用户可以接受他们被邀请参加的活动。用户应该只能单击此链接一次。目前我有以下代码似乎正在添加条目,虽然我认为它不是最佳实践,而且唯一 id 似乎不太好用
哈姆
%li= link_to 'Add', availabilities_path(:availability => {:team_id => @event.team_id, :user_id => user, :event_id => @event.id, :unique_id => availability_unique_id(user,@event) }), :remote => true, :method => :post, :class => 'button tiny success'
模型
validates :unique_id, :presence => true, :uniqueness => true
独特的方法
def availability_unique_id(player,schedule)
Base64.encode64("#{player.to_s}_#{schedule.id.to_s}_#{schedule.team.id.to_s}")
end
正如您从下面的查询中看到的那样,没有忽略唯一值
select * from availabilities where user_id = 41;
id | available | user_id | team_id | event_id | created_at | updated_at | unique_id | comment
----+-----------+---------+---------+----------+----------------------------+----------------------------+----------------------------------+---------
61 | | 41 | | | 2012-11-04 13:48:22.794214 | 2012-11-04 13:48:22.794214 | NDFfNDNfMQ== +|
| | | | | | | |
84 | | 41 | 1 | 75 | 2013-02-09 14:03:29.792374 | 2013-02-09 14:03:29.792374 | IzxVc2VyOjB4YWY3NTMxND5fNzVfMQ==+|
| | | | | | | |
85 | | 41 | 1 | 75 | 2013-02-09 14:06:04.131862 | 2013-02-09 14:06:04.131862 | IzxVc2VyOjB4YjJhODBiOD5fNzVfMQ==+|
| | | | | | | |
87 | | 41 | 1 | 75 | 2013-02-09 14:07:31.77788 | 2013-02-09 14:07:31.77788 | IzxVc2VyOjB4YjBhYjdiMD5fNzVfMQ==+|
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