Merge pull request #3063 from jekyll/jsonify-on-hashes

lib/jekyll/filters.rb

@@ -328,10 +328,14 @@ module Jekyll
 
     def as_liquid(item)
       case item
+      when String, Numeric, nil
+        item.to_liquid
+      when Hash
+        Hash[item.map { |k, v| [as_liquid(k), as_liquid(v)] }]
       when Array
         item.map{ |i| as_liquid(i) }
       else
-        item.respond_to?(:to_liquid) ? item.to_liquid : item
+        item.respond_to?(:to_liquid) ? as_liquid(item.to_liquid) : item
       end
     end
   end

test/test_filters.rb

@@ -148,13 +148,26 @@ class TestFilters < Test::Unit::TestCase
         assert_equal "[{\"name\":\"Jack\"},{\"name\":\"Smith\"}]", @filter.jsonify([{:name => 'Jack'}, {:name => 'Smith'}])
       end
 
-      should "call #to_liquid " do
-        class AThing < Struct.new(:name)
+      class M < Struct.new(:message)
         def to_liquid
-            { "name" => name, :v => 1 }
+          [message]
         end
       end
-        assert_equal "[{\"name\":\"Jeremiah\",\"v\":1},{\"name\":\"Smathers\",\"v\":1}]", @filter.jsonify([AThing.new("Jeremiah"), AThing.new("Smathers")])
+      class T < Struct.new(:name)
+        def to_liquid
+          { "name" => name, :v => 1, :thing => M.new({:kay => "jewelers"}) }
+        end
+      end
+
+      should "call #to_liquid " do
+        expected = "[{\"name\":\"Jeremiah\",\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]},{\"name\":\"Smathers\",\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]}]"
+        assert_equal expected, @filter.jsonify([T.new("Jeremiah"), T.new("Smathers")])
+      end
+
+      should "handle hashes with all sorts of weird keys and values" do
+        my_hash = { "posts" => Array.new(5) { |i| T.new(i) } }
+        expected = "{\"posts\":[{\"name\":0,\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]},{\"name\":1,\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]},{\"name\":2,\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]},{\"name\":3,\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]},{\"name\":4,\"v\":1,\"thing\":[{\"kay\":\"jewelers\"}]}]}"
+        assert_equal expected, @filter.jsonify(my_hash)
       end
     end