Rails选择所需格式的帮助程序True无效 [英] Rails Select helper in form required True not working

问题描述

我有一个Rails 3.2.21应用程序，其中我正在使用 select 助手，其格式如下:

I have a Rails 3.2.21 app in which I'm using a select helper in a form like so:

<%= f.select :phys_option, options_for_select([["N/A", "n/a"], ["No", "no"], ["Yes", "yes"]], :selected => @call.phys_option), :include_blank => true, :required => true, :class => 'select' %>

这与选择选项(包括空白选项等)的基本功能一起使用.但是不起作用的是:required =>.true 或:class =>'选择'.即使选择为空白，并且select2 gem select 的类在此辅助方法上不起作用，我也可以提交表单.

This works with basic functionality for selecting an option, including a blank option, etc. But what doesn't work is the :required => true or the :class => 'select'. I can submit the form even when the selection is blank and my class for the select2 gem select doesn't work on this helper method.

我的语法错误还是我遗漏了一些东西?我可以调用模型验证来确保填写字段，但是我宁愿避免进行更多的模型验证，并尝试使用:required =>true 强制选择.

Is my syntax wrong or am I missing something? I can call a model validation to ensure the fields are filled out, but I'd much rather avoid more model validations and try to use the :required => true to force a selection.

有什么想法为什么不起作用?

Any thoughts on why this isn't working?

如果您需要更多详细信息和/或代码，请告诉我.

If you need further detail and/or code, please let me know.

推荐答案

尝试一下:

<%= f.select :phys_option, options_for_select(
                            [["N/A", "n/a"], ["No", "no"], ["Yes", "yes"]],
                            :selected => @call.phys_option), 
                           {:include_blank => true},
                           {:required => true, :class => 'select'} %>

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