Include the connection ID in ActiveRecord breadcrumbs on new version of Rails

CHANGELOG.md

@@ -1,11 +1,18 @@
 Changelog
 =========
 
+## TBD
+
 ### Enhancements
 
 * Classify `ActionDispatch::Http::MimeNegotiation::InvalidType` as info severity level
   | [#654](https://github.com/bugsnag/bugsnag-ruby/pull/654)
 
+### Fixes
+
+* Include `connection_id` in ActiveRecord breadcrumb metadata on new versons of Rails
+  | [#655](https://github.com/bugsnag/bugsnag-ruby/pull/655)
+
 ## 6.19.0 (6 January 2021)
 
 ### Enhancements

lib/bugsnag/integrations/rails/rails_breadcrumbs.rb

@@ -38,6 +38,8 @@ module Bugsnag::Rails
       :type => Bugsnag::Breadcrumbs::PROCESS_BREADCRUMB_TYPE,
       :allowed_data => [
         :name,
+        # :connection_id is no longer provided in Rails 6.1+ but we can get it
+        # from the :connection key of the event instead
         :connection_id,
         :cached
       ]

lib/bugsnag/integrations/railtie.rb

@@ -91,10 +91,21 @@ def event_subscription(event)
         filtered_data = data.slice(*event[:allowed_data])
         filtered_data[:event_name] = event[:id]
         filtered_data[:event_id] = event_id
-        if event[:id] == "sql.active_record" && data.key?(:binds)
-          binds = data[:binds].each_with_object({}) { |bind, output| output[bind.name] = '?' if defined?(bind.name) }
-          filtered_data[:binds] = JSON.dump(binds) unless binds.empty?
+
+        if event[:id] == "sql.active_record"
+          if data.key?(:binds)
+            binds = data[:binds].each_with_object({}) { |bind, output| output[bind.name] = '?' if defined?(bind.name) }
+            filtered_data[:binds] = JSON.dump(binds) unless binds.empty?
+          end
+
+          # Rails < 6.1 included connection_id in the event data, but now
+          # includes the connection object instead
+          if data.key?(:connection) && !data.key?(:connection_id)
+            # the connection ID is the object_id of the connection object
+            filtered_data[:connection_id] = data[:connection].object_id
+          end
         end
+
         Bugsnag.leave_breadcrumb(
           event[:message],
           filtered_data,