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Class: ActionView::LogSubscriber

Relationships & Source Files
Namespace Children
Modules:
Utils
Classes:
Start
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::LogSubscriber, ::ActiveSupport::Subscriber
Instance Chain:
self, Utils, ::ActiveSupport::LogSubscriber, ::ActiveSupport::Subscriber
Inherits: ActiveSupport::LogSubscriber
Defined in: actionview/lib/action_view/log_subscriber.rb

Overview

Provides functionality so that Rails can output logs from Action View.

Constant Summary

::ActiveSupport::LogSubscriber - Inherited

BLACK, BLUE, CYAN, GREEN, LEVEL_CHECKS, MAGENTA, MODES, RED, WHITE, YELLOW

Class Attribute Summary

::ActiveSupport::LogSubscriber - Inherited

.colorize_logging, .log_levels, .log_levels?, .logger, .logger=

::ActiveSupport::Subscriber - Inherited

.namespace, .notifier, .subscriber

Class Method Summary

::ActiveSupport::LogSubscriber - Inherited

.attach_to,
.flush_all!

Flush all log_subscribers’ logger.
.log_subscribers, .new, .fetch_public_methods, .set_event_levels, .subscribe_log_level

::ActiveSupport::Subscriber - Inherited

.attach_to

Attach the subscriber to a namespace.
.detach_from

Detach the subscriber from a namespace.
.method_added

Adds event subscribers for all new methods added to the class.
.new, .subscribers, .add_event_subscriber, .fetch_public_methods, .find_attached_subscriber, .invalid_event?, .pattern_subscribed?, .prepare_pattern, .remove_event_subscriber

Instance Attribute Summary

::ActiveSupport::LogSubscriber - Inherited

#colorize_logging, #event_levels=

::ActiveSupport::Subscriber - Inherited

#patterns

Instance Method Summary

Utils - Included

#logger, #from_rails_root, #rails_root

::ActiveSupport::LogSubscriber - Inherited

#call, #logger, #publish_event, #silenced?,
#color

Set color by using a symbol or one of the defined constants.
#log_exception, #mode_from

::ActiveSupport::Subscriber - Inherited

#call, #publish_event

Constructor Details

.new ⇒ LogSubscriber

[ GitHub ] 

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 12



def initialize
  @root = nil
  super
end


  







Class Method Details



  

    .attach_to  
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 105



def self.attach_to(*)
  ActiveSupport::Notifications.subscribe("render_template.action_view", ActionView::LogSubscriber::Start.new)
  ActiveSupport::Notifications.subscribe("render_layout.action_view", ActionView::LogSubscriber::Start.new)

  super
end


  







Instance Method Details



  

    #cache_message(payload)   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 121



def cache_message(payload) # :doc:
  case payload[:cache_hit]
  when :hit
    "[cache hit]"
  when :miss
    "[cache miss]"
  end
end


  








  

    #render_collection(event)  
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 45



def render_collection(event)
  identifier = event.payload[:identifier] || "templates"

  debug do
    message = +"  Rendered collection of #{from_rails_root(identifier)}"
    message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
    message << " #{render_count(event.payload)} (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
    message
  end
end


  








  

    #render_count(payload)   (private)
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 113



def render_count(payload) # :doc:
  if payload[:cache_hits]
    "[#{payload[:cache_hits]} / #{payload[:count]} cache hits]"
  else
    "[#{payload[:count]} times]"
  end
end


  








  

    #render_layout(event)  
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 37



def render_layout(event)
  info do
    message = +"  Rendered layout #{from_rails_root(event.payload[:identifier])}"
    message << " (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
  end
end


  








  

    #render_partial(event)  
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 26



def render_partial(event)
  debug do
    message = +"  Rendered #{from_rails_root(event.payload[:identifier])}"
    message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
    message << " (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
    message << " #{cache_message(event.payload)}" unless event.payload[:cache_hit].nil?
    message
  end
end


  








  

    #render_template(event)  
  

  [ GitHub ]


  

  


# File 'actionview/lib/action_view/log_subscriber.rb', line 17



def render_template(event)
  info do
    message = +"  Rendered #{from_rails_root(event.payload[:identifier])}"
    message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
    message << " (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
  end
end