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Class: ActiveRecord::LogSubscriber

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::LogSubscriber, ::ActiveSupport::Subscriber
Instance Chain:
self, ::ActiveSupport::LogSubscriber, ::ActiveSupport::Subscriber
Inherits: ActiveSupport::LogSubscriber
Defined in: activerecord/lib/active_record/log_subscriber.rb

Constant Summary

::ActiveSupport::LogSubscriber - Inherited

BLACK, BLUE, BOLD, CLEAR, CYAN, GREEN, MAGENTA, RED, WHITE, YELLOW

Class Attribute Summary

::ActiveSupport::LogSubscriber - Inherited

.colorize_logging, .logger, .logger=

Class Method Summary

::ActiveSupport::LogSubscriber - Inherited

.flush_all!

Flush all log_subscribers' logger.
.log_subscribers

::ActiveSupport::Subscriber - Inherited

.attach_to

Attach the subscriber to a namespace.
.method_added

Adds event subscribers for all new methods added to the class.
.new, .subscribers

Instance Attribute Summary

::ActiveSupport::LogSubscriber - Inherited

#colorize_logging

Instance Method Summary

::ActiveSupport::LogSubscriber - Inherited

#finish, #logger, #start

::ActiveSupport::Subscriber - Inherited

#finish, #start

Constructor Details

.new ⇒ LogSubscriber

[ GitHub ] 

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 18



def initialize
  super
  @odd = false
end


  







Class Attribute Details



  

    .runtime   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 9



def self.runtime
  ActiveRecord::RuntimeRegistry.sql_runtime ||= 0
end


  








  

    .runtime=(value)   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 5



def self.runtime=(value)
  ActiveRecord::RuntimeRegistry.sql_runtime = value
end


  







Class Method Details



  

    .reset_runtime  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 13



def self.reset_runtime
  rt, self.runtime = runtime, 0
  rt
end


  







Instance Attribute Details



  

    #odd?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 65



def odd?
  @odd = !@odd
end


  







Instance Method Details



  

    #logger  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 69



def logger
  ActiveRecord::Base.logger
end


  








  

    #render_bind(column, value)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 23



def render_bind(column, value)
  if column
    if column.binary?
      # This specifically deals with the PG adapter that casts bytea columns into a Hash.
      value = value[:value] if value.is_a?(Hash)
      value = value ? "<#{value.bytesize} bytes of binary data>" : "<NULL binary data>"
    end

    [column.name, value]
  else
    [nil, value]
  end
end


  








  

    #sql(event)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/log_subscriber.rb', line 37



def sql(event)
  self.class.runtime += event.duration
  return unless logger.debug?

  payload = event.payload

  return if IGNORE_PAYLOAD_NAMES.include?(payload[:name])

  name  = "#{payload[:name]} (#{event.duration.round(1)}ms)"
  sql   = payload[:sql]
  binds = nil

  unless (payload[:binds] || []).empty?
    binds = "  " + payload[:binds].map { |col,v|
      render_bind(col, v)
    }.inspect
  end

  if odd?
    name = color(name, CYAN, true)
    sql  = color(sql, nil, true)
  else
    name = color(name, MAGENTA, true)
  end

  debug "  #{name}  #{sql}#{binds}"
end