From 8dc62c15999d19d42beb9f481dd24507197c7df9 Mon Sep 17 00:00:00 2001
From: Victor Costa <vfcosta@gmail.com>
Date: Tue, 11 Nov 2014 14:03:47 -0300
Subject: [PATCH] virtuoso: use liquid as template engine

---
 plugins/virtuoso/Gemfile                                 | 1 +
 plugins/virtuoso/lib/ext/literal.rb                      | 7 +++++++
 plugins/virtuoso/lib/ext/solution.rb                     | 7 +++++++
 plugins/virtuoso/lib/virtuoso_plugin/triples_template.rb | 7 +++----
 4 files changed, 18 insertions(+), 4 deletions(-)
 create mode 100644 plugins/virtuoso/lib/ext/literal.rb
 create mode 100644 plugins/virtuoso/lib/ext/solution.rb

diff --git a/plugins/virtuoso/Gemfile b/plugins/virtuoso/Gemfile
index 6c259c5..818f3fd 100644
--- a/plugins/virtuoso/Gemfile
+++ b/plugins/virtuoso/Gemfile
@@ -1,3 +1,4 @@
 gem 'rdf'
 gem 'rdf-virtuoso'
 gem 'oai'
+gem 'liquid'
diff --git a/plugins/virtuoso/lib/ext/literal.rb b/plugins/virtuoso/lib/ext/literal.rb
new file mode 100644
index 0000000..9ab34b0
--- /dev/null
+++ b/plugins/virtuoso/lib/ext/literal.rb
@@ -0,0 +1,7 @@
+class RDF::Literal
+
+  def to_liquid
+    value
+  end
+
+end
diff --git a/plugins/virtuoso/lib/ext/solution.rb b/plugins/virtuoso/lib/ext/solution.rb
new file mode 100644
index 0000000..bf08fb8
--- /dev/null
+++ b/plugins/virtuoso/lib/ext/solution.rb
@@ -0,0 +1,7 @@
+class RDF::Query::Solution
+
+  def to_liquid
+    HashWithIndifferentAccess.new(to_hash)
+  end
+
+end
diff --git a/plugins/virtuoso/lib/virtuoso_plugin/triples_template.rb b/plugins/virtuoso/lib/virtuoso_plugin/triples_template.rb
index 5c4bd76..5613768 100644
--- a/plugins/virtuoso/lib/virtuoso_plugin/triples_template.rb
+++ b/plugins/virtuoso/lib/virtuoso_plugin/triples_template.rb
@@ -25,10 +25,9 @@ class VirtuosoPlugin::TriplesTemplate < Article
   end
 
   def template_content
-    result = plugin.virtuoso_client.query(query)
-    result.map do |r|
-      template.gsub(/%\{.*\}/) {|s| r["#{s.delete('%|{|}')}"]}
-    end.join
+    results = plugin.virtuoso_client.query(query)
+    liquid_template = Liquid::Template.parse("{% for row in results %}#{template}{% endfor %}")
+    liquid_template.render('results' => results)
   end
 
 end
--
libgit2 0.21.2