Rails：如何将数组迭代从视图移动到帮助器(Rails: How to move array iteration from view to helper)

Rails：如何将数组迭代从视图移动到帮助器(Rails: How to move array iteration from view to helper)

我在视图中循环遍历数组，但是当我尝试将代码移动到辅助方法时，它无法正常工作。 问题是我无法在帮助器中执行<％=％>。 任何人都可以让我知道如何修复代码？

原始视图

<% resources.each do |resource| %> <span class="label label-primary"> <%= resource.name %> </span> <% end %>

更新的视图

<%= print_resource resources%>

resource_helper.rb

def print_resource(resources) resources.each do |resource| text = resource.name clz = 'label label-primary' content_tag :span, text,clz end end

I am looping through an array in view, it works, but when I tried to move the code to helper method, it did not work. The problem is I am not able to do <%= %> inside helper. Anybody could let me know how to fix the code?

original view

<% resources.each do |resource| %> <span class="label label-primary"> <%= resource.name %> </span> <% end %>

updated view

<%= print_resource resources%>

resource_helper.rb

def print_resource(resources) resources.each do |resource| text = resource.name clz = 'label label-primary' content_tag :span, text,clz end end

最满意答案

就这样做：

def print_resource(resources) html_values = "" resources.each do |resource| text = resource.name clz = 'label label-primary' html_values << (content_tag :span, text,clz) end html_values.html_safe end

Just do like this:

def print_resource(resources) html_values = "" resources.each do |resource| text = resource.name clz = 'label label-primary' html_values << (content_tag :span, text,clz) end html_values.html_safe end