在t.string的预定义值中选择
有可能创建一个
collection_select
要么
select tag
为一个
t.string
用户可以在字符串的预定义值中进行选择,并且只允许那些值存储在字符串的数据库中? 例如
t.string :relationship_status
我想要预定义的值:
In a relationship Single Maried Engaged ETC
可能工作的最简单的事情是:
class Person < ActiveRecord::Base RELATIONSHIP_STATUSES = [ "single", "in a relationship", "together", "it's complicated" ] validates :relationship_status, :inclusion => RELATIONSHIP_STATUSES end
然后,在视图中:
collection_select(:person, :relationship_status, Person::RELATIONSHIP_STATUSES, :to_s)
这会产生: