Move #to_liquid to Convertible

lib/jekyll/convertible.rb

@@ -84,6 +84,16 @@ module Jekyll
       raise e
     end
 
+    # Convert this Convertible's data to a Hash suitable for use by Liquid.
+    #
+    # Returns the Hash representation of this Convertible.
+    def to_liquid
+      further_data = Hash[self.class::ATTRIBUTES_FOR_LIQUID.map { |attribute|
+        [attribute, send(attribute)]
+      }]
+      data.deep_merge(further_data)
+    end
+
     # Recursively render layouts
     #
     # layouts - a list of the layouts

lib/jekyll/page.rb

@@ -118,16 +118,6 @@ module Jekyll
       do_layout(payload, layouts)
     end
 
-    # Convert this Page's data to a Hash suitable for use by Liquid.
-    #
-    # Returns the Hash representation of this Page.
-    def to_liquid
-      further_data = Hash[ATTRIBUTES_FOR_LIQUID.map { |attribute|
-        [attribute, send(attribute)]
-      }]
-      data.deep_merge(further_data)
-    end
-
     # The path to the source file
     #
     # Returns the path to the source file

lib/jekyll/post.rb

@@ -270,16 +270,6 @@ module Jekyll
       path
     end
 
-    # Convert this post into a Hash for use in Liquid templates.
-    #
-    # Returns the representative Hash.
-    def to_liquid
-      further_data = Hash[ATTRIBUTES_FOR_LIQUID.map { |attribute|
-        [attribute, send(attribute)]
-      }]
-      data.deep_merge(further_data)
-    end
-
     # Returns the shorthand String identifier of this Post.
     def inspect
       "<Post: #{self.id}>"