渲染erb从数据库到查看问题请帮助！ [英] render erb from database into view problem please help!

问题描述

我在我的数据库中保存一些erb，并在视图中呈现如下：

  erb = ERB.new内容）
 render：text => erb.result 
  

我在尝试渲染erb时遇到错误，并且将ert中的image_tag保存在数据库。错误是：

 未定义方法`image_tag'for main：Object 
  pre> 
 
 
有人帮忙吗？我也得到了stylesheet_link_tag的错误？
 
 
 
谢谢alot 
 rick 
解决方案
我认为你需要将可选的绑定参数传递给ERB :: render方法。这有效地提供了ERB模板范围内的局部变量。换句话说，绑定需要为模板提供image_tag变量。
 
 
 
我不知道你的情况是什么'内容'，但下面的内容将通过绑定从父视图中假设@ obj.image_tag在该视图中可见：
 <％= ERB.new image tag  -  \< \％= @ obj.image_tag \％\>）。result（binding）％> 
  
 
i am saving some erb in my database and rendering it in the view like this:
erb = ERB.new(content)
render :text => erb.result
I am getting errors when trying render erb that has the image_tag in the erb saved in the database.  The error is :
undefined method `image_tag' for main:Object
Anyone help on this ?  i also get the error with the stylesheet_link_tag ?

Thank alot 
rick
解决方案
I think that you would need to pass the optional binding parameter to the ERB::render method. This effectively provides the local variables in the scope of the ERB template. In other words the binding needs to provide the image_tag variable to the template.

I don't know what 'content' is in your case but the following will pass the binding from the 'parent' view assuming that @obj.image_tag is visible from that view:
<%= ERB.new("image tag - \<\%= @obj.image_tag \%\>").result(binding) %>


                        
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