Add help page for Foodsoft variables

plugins/wiki/app/controllers/pages_controller.rb

@@ -1,6 +1,7 @@
 # encoding: utf-8
 class PagesController < ApplicationController
   before_filter -> { require_plugin_enabled FoodsoftWiki }
+  before_filter :catch_special_pages, only: [:show, :new]
 
   skip_before_filter :authenticate, :only => :all
   before_filter :only => :all do
@@ -140,4 +141,18 @@ class PagesController < ApplicationController
 
     redirect_to wiki_page_path(@page.permalink)
   end
+
+  def variables
+    keys = Foodsoft::ExpansionVariables.variables.keys
+    @variables = Hash[keys.map {|k| [k, Foodsoft::ExpansionVariables.get(k)]}]
+    render 'variables'
+  end
+
+  private
+
+  def catch_special_pages
+    if params[:id] == 'Help:Foodsoft_variables'
+      variables
+    end
+  end
 end

plugins/wiki/app/views/pages/_form.html.haml

@@ -85,5 +85,6 @@
           %td(colspan=2)
             %ul
               %li!= link_to t('.help.link_table'), '//www.mediawiki.org/wiki/Help:Tables', target: '_blank'
+              %li!= link_to t('.help.link_variables'), page_path('Help:Foodsoft_variables'), target: '_blank'
               %li!= link_to t('.help.link_lists'), '//www.mediawiki.org/wiki/Help:Lists', target: '_blank'
               %li!= link_to t('.help.link_templates'), '//www.mediawiki.org/wiki/Help:Templates', target: '_blank'

plugins/wiki/app/views/pages/variables.html.haml

@@ -0,0 +1,16 @@
+- title t '.title'
+
+%p= t '.description'
+
+%table.table.table-hover
+  %thead
+    %tr
+      %th= t '.variable'
+      %th= t '.value'
+  %tbody
+    - @variables.each do |key, value|
+      %tr
+        %td
+          %tt= "{{#{key}}}"
+        %td
+          = value