Rails 3.1 资产管道:加载特定于控制器的脚本?
问题说明
如果我在 Rails 3.1 中生成一个新的控制器，也会自动添加一个带有控制器名称的 javascript 文件.首先，我认为这个javascript文件只会在调用相关控制器时使用.
If I generate a new controller in Rails 3.1, also a javascript file with the name of the controller will added automatically. Firstly, I thought this javascript file will used only, when the related controller is called.
默认情况下，application.js 文件中有 //= require_tree . 指令，其中包含其树上的每个 javascript 文件.
By default there is the instruction //= require_tree . in the application.js-file, that include every javascript file on it's tree.
如何只加载控制器特定的脚本?
How could I load only the controller specific script?
正确答案
只加载必要的 name_of_the_js_file.js 文件:
To load only the necessary name_of_the_js_file.js file:
-
从
application.js
将您的 js 文件(您希望在加载特定页面时加载)保留在资产管道中
keep your js file (that you want to load when a specific page is loaded) in the asset pipeline
在application_helper.rb
def javascript(*files)
content_for(:head) { javascript_include_tag(*files) }
end
-
屈服于您的布局:
-
yield into your layout:
<%= yield(:head) %> -
在您的视图文件中添加:
-
add this in your view file:
<% javascript 'name_of_the_js_file' %>
那应该没问题
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