webgen users - Mar 2010 - Conditional sidebar

Hi,

I am obviously new to webgen, as my problem is a fairly simple yet one 
that I can''t seem to solve on my own.

I am using webgen 0.5.11.

I only want those pages that have "has_sidebar: true" is set in their 
page header to have a side bar. Like so:


---
title: Welcome
in_menu: true
routed_title: Home
sort_info: 0
has_sidebar: true
---

[Rest of the page goes here]



I did find this post:

http://rubyforge.org/pipermail/webgen-users/2008-October/000346.html

Accordingly, I tried:

<% if node[''has_sidebar''] == "true" %>
    [HTML block that generates side-bar]
<% end %>

All that earns me, however, is

An error has occurred:
   Error in </default.template:~43> while rendering </index.en.html>
with Webgen::ContentProcessor::Erb:
     undefined local variable or method `node'' for 
#<Webgen::ContentProcessor::Erb:0x6f6fe0>

If I use
<% if
content_node.node_info[:page].blocks.has_key?(''has_sidebar'')
%>
instead, I get get an error as well:

undefined local variable or method `content_node'' for 
#<Webgen::ContentProcessor::Erb:0x6f3000>

I am clearly doing something very obvious wrong. Does anybody have any 
pointers what that might be?

Thanks,
-Markus

> If I use
> <% if
content_node.node_info[:page].blocks.has_key?(''has_sidebar'')
%>
> instead, I get get an error as well:
> 
> undefined local variable or method `content_node'' for 
> #<Webgen::ContentProcessor::Erb:0x6f3000>
The direct use of the variables you use has been deprecated in favour of
the `context` object. So your code should read:

<% if context.content_node[''has_sidebar''] %>
   [HTML block that generates side-bar]
<% end %>

Also note that the page meta information block is parsed with YAML,
meaning that the keys and values are converted, as far as possible, to
equivalent Ruby objects. Given your example, the value for the
`has_sidebar` key will be converted to the boolean value `true`.
Therefore the above if-condition is sufficient.

-- Thomas