1 files changed, 27 insertions, 0 deletions

diff --git a/vendor/plugins/thinking-sphinx/lib/thinking_sphinx/deltas.rb b/vendor/plugins/thinking-sphinx/lib/thinking_sphinx/deltas.rb
new file mode 100644
index 0000000..57c396e
--- /dev/null
+++ b/vendor/plugins/thinking-sphinx/lib/thinking_sphinx/deltas.rb
@@ -0,0 +1,27 @@
+require 'thinking_sphinx/deltas/default_delta'
+require 'thinking_sphinx/deltas/delayed_delta'
+require 'thinking_sphinx/deltas/datetime_delta'
+
+module ThinkingSphinx
+  module Deltas
+    def self.parse(index, options)
+      delta_option = options.delete(:delta)
+      case delta_option
+      when TrueClass, :default
+        DefaultDelta.new index, options
+      when :delayed
+        DelayedDelta.new index, options
+      when :datetime
+        DatetimeDelta.new index, options
+      when FalseClass, nil
+        nil
+      else
+        if delta_option.ancestors.include?(ThinkingSphinx::Deltas::DefaultDelta)
+          delta_option.new index, options
+        else
+          raise "Unknown delta type"
+        end
+      end
+    end
+  end
+end