lib/field_test.rb in field_test-0.2.0 vs lib/field_test.rb in field_test-0.2.1

@@ -1,6 +1,5 @@
-require "distribution/math_extension"
 require "browser"
 require "active_support"
 require "field_test/calculations"
 require "field_test/experiment"
 require "field_test/engine" if defined?(Rails)
@@ -25,9 +24,23 @@
     config["exclude"] && config["exclude"]["bots"]
   end
 
   def self.cache
     config["cache"]
+  end
+
+  def self.events_supported?
+    unless defined?(@events_supported)
+      connection = FieldTest::Membership.connection
+      table_name = "field_test_events"
+      @events_supported =
+        if connection.respond_to?(:data_source_exists?)
+          connection.data_source_exists?(table_name)
+        else
+          connection.table_exists?(table_name)
+        end
+    end
+    @events_supported
   end
 end
 
 ActiveSupport.on_load(:action_controller) do
   include FieldTest::Helpers