Using helper method and Ruby enumerable to return html formatted objects

Question

Apologies for the noob question, but I can't seem to figure out how to return formatted HTML objects using a ruby enumerable and a helper. I want to remove the brackets. Is there anyway to return formatted objects with an enumerable based on an array of objects?

Helper

module PostsHelper


  def display_posts(posts)
    if posts.any?
      raw(@posts.map {|p| raw("<div class='post_text_box'>#{p.body}</div>")})
    end

  end


end

HTML.erb

<div id="post_feed">
<%=display_posts(@posts)%>

</div>

Browser Output

picture of array of formatted html

Answer 1

It's recommended you do not join.html_safe as the previous answer says, in rails due to the potential for injection attacks if your underlying strings aren't safe.

Use safe_join instead. It will maintain the "safeness" of the strings to output.

if posts.any?
  safe_join( @posts.map {|p| "<div class='post_text_box'>#{p.body}</div>".html_safe } )
end

In your case I would make a partial named _post.html.erb containing

<div class='post_text_box'><%= post.body %></div>

and in your thing.html.erb file

<%= render @posts %>

Then Rails will automatically iterate @posts over _post.html.erb and join them for you.

This is all part of Rails's Convention over configuration , where if you render klass , it first looks for _klass.<format>.<builder> to render.