rails3 - check_box_tag - 如何使条件禁用 [英] rails3 - check_box_tag - how to make a Conditional Disabled

问题描述

给定以下 Rails 3 check_box_tag

Given the following Rails 3 check_box_tag

<%= check_box_tag 'XXXXXXX', 'true', true, (@setting.archived == true, :disabled =>  ?  true : false ) %>

如何使禁用设置以 @setting.archived 为条件?

How do I make the disabled setting conditional on @setting.archived ?

有什么想法吗?

谢谢

推荐答案

您几乎已经获得了一些有用的东西.试试:

You've nearly got something that'll work. Try:

<%= check_box_tag 'XXXXXXX', 'true', true, :disabled =>  (@setting.archived ?  true : false ) %>

记住 (test ? a : b) 是一个单独的表达式，如果 test 为真，则计算结果为 a，并且 b 如果是假的.

remembering that (test ? a : b) is a single expression evaluating to a if test is true, and b if it's false.

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