copy sections (template) and fix cards inclusion

app/models/merged/page.rb

@@ -34,8 +34,8 @@ module Merged
       @@all[@name] = self
     end
 
-    def new_section
-      section_template = params[:template] || "section_spacer"
+    def new_section(section_template)
+      section_template = "section_spacer" if section_template.blank?
       section_data = Section.build_data(section_template)
       index = sections.length
       section = Section.new(self , index,  section_data)

app/models/merged/section.rb

@@ -50,6 +50,22 @@ module Merged
       options[option] = value
     end
 
+    def set_template(new_template)
+      @content["template"] = new_template
+      new_style = template_style
+      if(new_style.cards?)
+        unless card_template
+          @content["card_template"] = Style.cards.keys.first
+          @content["cards"] = []
+          raise "Should not have cards" unless cards.empty?
+        end
+      else
+        @content.delete("cards")
+        @content.delete("card_template")
+        @cards.clear
+      end
+    end
+
     def template_style
       Style.sections[ template ]
     end
@@ -58,7 +74,7 @@ module Merged
     end
 
     def cards?
-      ! cards.empty?
+      ! card_template.blank?
     end
 
     def new_card
@@ -133,11 +149,15 @@ module Merged
 
     def self.build_data(template)
       data = { "template" => template , "id" => SecureRandom.hex(10) }
-      Style.sections[ template ].fields.each do |key|
+      style = Style.sections[ template ]
+      style.fields.each do |key|
         data[key] = key.upcase
+      end unless style.fields.blank?
+      if(style.cards?)
+        data["cards"] = []
+        data["card_template"] = Style.cards.keys.first
       end
       data
-
     end
 
     def self.find(section_id)

app/models/merged/style.rb

@@ -2,7 +2,6 @@ module Merged
   class Style
     include ActiveModel::API
 
-    cattr_accessor :sections , :cards
     @@sections = {}
     @@cards = {}
 
@@ -29,16 +28,16 @@ module Merged
     end
 
     def self.cards
-      self.all
+      self.load
       @@cards
     end
 
     def self.sections
-      self.all
+      self.load
       @@sections
     end
 
-    def self.all
+    def self.load
       if @@sections.length == 0
         all = YAML.load_file(Engine.root.join("config/styles.yaml"))
         all["sections"].each do |content|