More sidebar module fixes.

There was some problems with the approach in the previous commits.

- render_collection (render @sidebar_modules in our case) requires
that all objects return the same partial path. Ours may not do that,
so we wrote our own `render_sidebar_modules`-helper.

- The way render_partial finds the correct path to the partial is
to append what's returned by to_partial_path with whatever root
the parent view is in. That would require duplication of the partials
under all the different engines namespaces. Our `render_sidebar_modules`
does it differently, and just looks up the partial according to the
root namespace. This means the sidebar_module code can move back under
the root application so we don't mess up the refinery namespaces.

- Finally found the proper way to link to a blog_post so that it
works from all namespaces. The correct way is:

    refinery.blog_post_path(post)

This works in views (and presumably helpers,) but not in controllers
which is why we struggled with it before.

2 files changed, 13 insertions, 0 deletions

diff --git a/app/views/sidebar_modules/_sidebar_blog_category.html.erb b/app/views/sidebar_modules/_sidebar_blog_category.html.erb
new file mode 100644
index 0000000..53556e7
--- /dev/null
+++ b/app/views/sidebar_modules/_sidebar_blog_category.html.erb
@@ -0,0 +1,8 @@
+<% content_for "sidebar_module_#{sidebar_module.title}_body" do %>
+  <% sidebar_module.body.each do |post| %>
+    <%= content_tag :div, :class => :sidebar_blog_headline do %>
+      <%= link_to post.title, refinery.blog_post_path(post) %>
+    <% end %>
+  <% end %>
+<% end %>
+<%= render 'sidebar_modules/sidebar_module', :sidebar_module => sidebar_module %>
diff --git a/app/views/sidebar_modules/_sidebar_module.html.erb b/app/views/sidebar_modules/_sidebar_module.html.erb
new file mode 100644
index 0000000..c7a24e9
--- /dev/null
+++ b/app/views/sidebar_modules/_sidebar_module.html.erb
@@ -0,0 +1,5 @@
+<div id="sidebar_module_<%= sidebar_module.title %>" class="sidebar_module">
+  <h1><%= sidebar_module.title %></h1>
+  <div><%= content_for "sidebar_module_#{sidebar_module.title}_body" %></div>
+</div>
+