adding index blueprint method to fetch document given member

lib/xapit/index_blueprint.rb

@@ -23,6 +23,18 @@ def facet(*attributes)
       field(*attributes)
     end
 
+    def document_for(member)
+      document = Xapian::Document.new
+      document.data = "#{member.class}-#{member.id}"
+      terms(member).each do |term|
+        document.add_term(term)
+      end
+      values(member).each_with_index do |value, index|
+        document.add_value(index, value)
+      end
+      document
+    end
+
     def stripped_words(content)
       content.to_s.downcase.scan(/[a-z0-9]+/)
     end

spec/xapit/index_blueprint_spec.rb

@@ -57,4 +57,16 @@
     @index.facet(:foo)
     @index.field_terms(member).should == %w[Xfoo-abc]
   end
+
+  it "should add terms and values to xapian document" do
+    member = Object.new
+    stub(member).id { 123 }
+    stub(@index).values { %w[value list] }
+    stub(@index).terms { %w[term list] }
+    doc = @index.document_for(member)
+    doc.should be_kind_of(Xapian::Document)
+    doc.data.should == "Object-123"
+    doc.values.map(&:value).sort.should == %w[value list].sort
+    doc.terms.map(&:term).sort.should == %w[term list].sort
+  end
 end