界面语言选择器在轨道形式？ [英] interface language selector in rails form?

问题描述

我有一个带有列lng的用户模型，我在那里存储一个区域选择en，fr等i18n语言环境字符串。

我的目标是在所有语言列出英语，法语和在表单更新时，它会在用户表中存储正确的en，fr值。

这将是什么方法呢？

解决方案

您可以简单地使用选择标记 http://guides.rubyonrails.org/form_helpers.html#the-select-and-option-tags ：

  = form_for @user do | f | 
 = f.select：lng，options_for_select（[['English'，'en']，['French'，'fr']]，@ user.lng）
  

我也建议将数组移到常量。例如，在它自己的模型User中的方法。例如：

 ＃models / user.rb 
 def self.lng_list 
 [['English' ，'en']，['French'，'fr']] 
 end 
 
 #form 
 = form_for @user do | f | 
 = f.select：lng，options_for_select（User.lng_list，@ user.lng）
  

edit

以简单的形式，您可以使用Rails窗体助手，如 https://github.com/plataformatec/simple_form#wrapping-rails-form-helpers ：

  = f.input：lng do 
 = f.select：lng，options_for_select（User.lng_list，@ user.lng）
  

或者您可以使用集合选项 https://github.com/plataformatec/simple_form#collections ：

  = f.input：lng，：collection => User.lng_list 
  

What would be the way to go on having a locale selection drop down in a form?

I have a User model with a column "lng" where I store the "en","fr", etc i18n locale strings.

My goal is to have a drop down with all the languages listed " English ", " French " and on form update it stores the correct "en", "fr" value in the user table.

What would be a way to go on this?

解决方案

You can simply use the select tag http://guides.rubyonrails.org/form_helpers.html#the-select-and-option-tags:

= form_for @user do |f|
  = f.select :lng, options_for_select([['English', 'en'], ['French', 'fr']], @user.lng)

I also suggest to move the array somewhere to the constant. For example, in its own method of model User. For example:

#models/user.rb
def self.lng_list
  [['English', 'en'], ['French', 'fr']]
end

#form
= form_for @user do |f|
  = f.select :lng, options_for_select(User.lng_list, @user.lng)

edited

In simple form you can use rails form helpers like this https://github.com/plataformatec/simple_form#wrapping-rails-form-helpers:

 = f.input :lng do
   = f.select :lng, options_for_select(User.lng_list, @user.lng)

Or you can use collection option https://github.com/plataformatec/simple_form#collections:

= f.input :lng, :collection => User.lng_list

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