1 files changed, 13 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/explain_subscriber.rb b/activerecord/lib/active_record/explain_subscriber.rb
new file mode 100644
index 0000000000..8a88be6761
--- /dev/null
+++ b/activerecord/lib/active_record/explain_subscriber.rb
@@ -0,0 +1,13 @@
+module ActiveRecord
+  class ExplainSubscriber < ActiveSupport::LogSubscriber
+    def sql(event)
+      ActiveRecord::Base.collect_queries_for_explain(event.payload)
+    end
+
+    def logger
+      ActiveRecord::Base.logger
+    end
+
+    attach_to :active_record
+  end
+end