CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3renderpartialpartials
Appster
Appster

Reputation: 753

Render from within partials without passing a local variable

In my helper method, I render a separate partial for each template:

structure=""
if(@page.theme_set = 1)                          #line 1
  render :partial => "first_theme.html", :locals => {:structure => structure}
else
  render :partial => "second_theme.html", :locals => {:structure => structure}
end
concat(structure)                                #line 2

Within the partials, I do this;

<% structure << header %>
<% structure << content_for_first_theme %>
<% structure << footer %>

All three are methods in the helper. But if I move line 1 and line 2 to the partial, the structure does not render. I do not want to initialize and pass a local variable to the partials but render from within the partials. Where am I going wrong?

Upvotes: 0

Views: 263

Answers (2)

miked
miked

Reputation: 4499

Probably one of the most confusing questions I've read, but there are a few things here that might help get you moving:

First, your if condition will always evaluate to true, use double equals (==) to find equality.

if(@page.theme_set = 1)   #this will always evaluate to true, use double equals (==) to find equality.

Next, if you're trying to render something in a view (partial), you're not going to see anything unless you use the equal sign in the erb tag <%= %>

<%= structure << footer %>

Finally, it appears that you're trying to do all of this through the same local variable and passing a reference to the partials. If this is the case, simply using an instance variable @structure should suffice and it will be available to the controller, views, and helpers so no passing is needed.

Upvotes: 0

Jak
Jak

Reputation: 3233

Please explain more.. I am not clear with this given info. I understood that you want the html string in structure to be shown on view. try <%= raw structure %> . I am not sure that I answered your question or not!

Upvotes: 0

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