Merge pull request reidmorrison#240 from y-yagi/allow_to_customize_log_message

Allow to customize a message of action log

Author: reidmorrison

lib/rails_semantic_logger/action_controller/log_subscriber.rb

@@ -3,9 +3,13 @@ module ActionController
     class LogSubscriber < ActiveSupport::LogSubscriber
       INTERNAL_PARAMS = %w[controller action format _method only_path].freeze
 
+      class << self
+        attr_accessor :action_message_format
+      end
+
       # Log as debug to hide Processing messages in production
       def start_processing(event)
-        controller_logger(event).debug { "Processing ##{event.payload[:action]}" }
+        controller_logger(event).debug { action_message("Processing", event.payload) }
       end
 
       def process_action(event)
@@ -59,7 +63,7 @@ def process_action(event)
           payload.delete(:response)
 
           {
-            message:  "Completed ##{payload[:action]}",
+            message:  action_message("Completed", event.payload),
             duration: event.duration,
             payload:  payload
           }
@@ -122,6 +126,14 @@ def extract_path(path)
         index = path.index("?")
         index ? path[0, index] : path
       end
+
+      def action_message(message, payload)
+        if self.class.action_message_format
+          self.class.action_message_format.call(message, payload)
+        else
+          "#{message} ##{payload[:action]}"
+        end
+      end
     end
   end
 end

lib/rails_semantic_logger/engine.rb

@@ -226,6 +226,7 @@ class Engine < ::Rails::Engine
         if defined?(::ActionController)
           require "action_controller/log_subscriber"
 
+          RailsSemanticLogger::ActionController::LogSubscriber.action_message_format = config.rails_semantic_logger.action_message_format
           RailsSemanticLogger.swap_subscriber(
             ::ActionController::LogSubscriber,
             RailsSemanticLogger::ActionController::LogSubscriber,

lib/rails_semantic_logger/options.rb

@@ -100,23 +100,32 @@ module RailsSemanticLogger
   # * named_tags: *DEPRECATED*
   #   Instead, supply a Hash to config.log_tags
   #   config.rails_semantic_logger.named_tags = nil
+  #
+  # * Change the message format of Action Controller action.
+  #   A block that will be called to format the message.
+  #   It is supplied with the `message` and `payload` and should return the formatted data.
+  #
+  #     config.rails_semantic_logger.action_message_format = -> (message, payload) do
+  #       "#{message} - #{payload[:controller]}##{payload[:action]}"
+  #     end
   class Options
     attr_accessor :semantic, :started, :processing, :rendered, :ap_options, :add_file_appender,
-                  :quiet_assets, :format, :named_tags, :filter, :console_logger
+                  :quiet_assets, :format, :named_tags, :filter, :console_logger, :action_message_format
 
     # Setup default values
     def initialize
-      @semantic          = true
-      @started           = false
-      @processing        = false
-      @rendered          = false
-      @ap_options        = {multiline: false}
-      @add_file_appender = true
-      @quiet_assets      = false
-      @format            = :default
-      @named_tags        = nil
-      @filter            = nil
-      @console_logger    = true
+      @semantic              = true
+      @started               = false
+      @processing            = false
+      @rendered              = false
+      @ap_options            = {multiline: false}
+      @add_file_appender     = true
+      @quiet_assets          = false
+      @format                = :default
+      @named_tags            = nil
+      @filter                = nil
+      @console_logger        = true
+      @action_message_format = nil
     end
   end
 end

test/controllers/articles_controller_test.rb

@@ -83,6 +83,45 @@ class ArticlesControllerTest < ActionDispatch::IntegrationTest
           }
         )
       end
+
+      it "customize action message" do
+        old_action_message_format = RailsSemanticLogger::ActionController::LogSubscriber.action_message_format
+        RailsSemanticLogger::ActionController::LogSubscriber.action_message_format = -> (message, payload) do
+          "#{message} #{payload[:controller]}##{payload[:action]}"
+        end
+
+        messages = semantic_logger_events do
+          post articles_url(params: params)
+        end
+        assert_equal 5, messages.count, messages
+
+        assert_semantic_logger_event(
+          messages[0],
+          message: "Started"
+        )
+
+        assert_semantic_logger_event(
+          messages[1],
+          message: "Processing ArticlesController#create"
+        )
+
+        assert_semantic_logger_event(
+          messages[2],
+          message: "Rendering"
+        )
+
+        assert_semantic_logger_event(
+          messages[3],
+          message: "Rendered"
+        )
+
+        assert_semantic_logger_event(
+          messages[4],
+          message: "Completed ArticlesController#create",
+        )
+      ensure
+        RailsSemanticLogger::ActionController::LogSubscriber.action_message_format = old_action_message_format
+      end
     end
 
     describe "#show" do