我如何在新插件的视图中使用Haml？ [英] How do I use Haml in a view in my new plugin?

问题描述

我为rails应用程序创建了一个新的插件，最终会变成一个gem。在我的插件里面有控制器，助手和视图。对于我的看法，我想用Haml。问题是，我似乎无法认识到他们是haml模板。这甚至有可能吗？有没有办法让插件将Haml作为其视图的依赖项？我的意思是，我打算为我创建的插件创建插件创建的视图，供应用程序开发人员使用。

例如：

 供应商/ 
插件/ 
 my_plugin / 
 lib / 
 app / 
 views / 
 my_plugin_demo / 
 index.haml.html 
控制器/ 
 my_plugin_demo_controller .rb 
助手/ 
  

在我的插件的init.rb中，我试过了：

  require'my_plugin'
 require'haml'＃似乎没有区别:( 
  

但这似乎没有任何区别。有没有人有过这方面的经验？我似乎无法找到任何更新：@Jens Fahnenbruck

更新：@Jens Fahnenbruck

我仍然有点困惑......你是否建议我将以下内容放入my_plugin的init.rb文件中？

 ＃加载Haml和Sass。 
＃如果我们运行gems：install，Haml可能是未定义的。 
 Haml.init_rails（绑定）如果已定义？（Haml）
 
需要'my_plugin'
  

我尝试过这样做，但没有奏效。它仍然给我以下页面错误：

 缺少模板my_plugin_demo / index.erb在视图路径应用程序/视图
  

不知道我明白你在推荐什么...

解决方案

这是由 haml创建的供应商/ plugins / haml / init.rb 文件 - hails --rails / path / to / app （参见 http：//wiki.rubyonrails。 org / howtos / templates / haml ）

  begin 
 require File.join（File.dirname __FILE__），'lib'，'haml'）＃从这里
 rescue LoadError 
 begin 
 require'haml'＃从gem 
 rescue LoadError => e 
＃gems：install可以运行以安装Haml，其中包含骨架插件
＃但不包括安装的gem。 
＃如果是这种情况，不要死。除非定义，否则
会提升e（Rake）&& 
（Rake.application.top_level_tasks.include？（'gems'）|| 
 Rake.application.top_level_tasks.include？（'gems：install'））
 end 
 end 
 
＃加载Haml和Sass。 
＃如果我们运行gems：install，Haml可能是未定义的。 
 Haml.init_rails（绑定）如果已定义？（Haml）
  

我相信最后一行是你需要的插件工作

更新

您的init .rb文件应该如下所示：

  require'haml'
 Haml.init_rails（绑定）
需要'my_plugin'
  

更新2

尝试另一个文件夹结构：

 供应商/ 
插件/ 
 my_plugin / 
 lib / 
 app /<  - 上一级
 views / 
 my_plugin_demo / 
 index.haml.html 
控制器/ 
 my_plugin_demo_controller.rb 
助手/ 
  

I'm creating a new plugin for a jruby on rails application that will eventually be turned into a gem. Inside my plugin I have controllers, helpers and views. For my views I'd like to use Haml. The problem is that I can't seem to get it to recognize that they are haml templates. Is it even possible to do this? Is there a way for a plugin to have Haml as a dependency for its view? And by that I mean, I intend for the plugin that I'm creating to have a view created by the plugin, that can be used by the application developer.

for example:

vendor/   
  plugins/    
    my_plugin/  
      lib/  
        app/  
          views/  
            my_plugin_demo/  
              index.haml.html
           controllers/  
             my_plugin_demo_controller.rb
           helpers/

In my plugin's init.rb, I tried:

require 'my_plugin'  
require 'haml'  #doesn't seem to make a difference :(

but that didn't seem to make any difference. Has anybody had any experience with this? I can't seem to find any documentation on how to make this work. Are plugin views restricted to .erb templates?

Update: @Jens Fahnenbruck

I'm a still a bit confused... are you recommending that I place the following into my_plugin's init.rb file?

# Load Haml and Sass.  
# Haml may be undefined if we're running gems:install.  
Haml.init_rails(binding) if defined?(Haml)  

require 'my_plugin'  

I tried doing just that and it didn't work. its still giving me the following page error:

Missing template my_plugin_demo/index.erb in view path app/views  

Not sure I understand what you were recommending...

解决方案

this is my vendor/plugins/haml/init.rb file created by haml --rails /path/to/app (see http://wiki.rubyonrails.org/howtos/templates/haml)

begin
  require File.join(File.dirname(__FILE__), 'lib', 'haml') # From here
rescue LoadError
  begin
    require 'haml' # From gem
  rescue LoadError => e
    # gems:install may be run to install Haml with the skeleton plugin
    # but not the gem itself installed.
    # Don't die if this is the case.
    raise e unless defined?(Rake) &&
      (Rake.application.top_level_tasks.include?('gems') ||
        Rake.application.top_level_tasks.include?('gems:install'))
  end
end

# Load Haml and Sass.
# Haml may be undefined if we're running gems:install.
Haml.init_rails(binding) if defined?(Haml)

I believe the last line is what you need for the plugin to be working

UPDATE

Your init.rb file should look like this:

require 'haml'
Haml.init_rails(binding)
require 'my_plugin'

Update 2

Try another folder structure:

vendor/   
  plugins/    
    my_plugin/  
      lib/  
      app/  <-- one level up
        views/  
          my_plugin_demo/  
            index.haml.html
         controllers/  
           my_plugin_demo_controller.rb
         helpers/

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