Class: ActiveRecord::LogSubscriber

Inherits:

ActiveSupport::LogSubscriber

• Object
• ActiveSupport::LogSubscriber
• ActiveRecord::LogSubscriber

show all

Defined in:

activerecord/lib/active_record/log_subscriber.rb

Constant Summary

Constants inherited from ActiveSupport::LogSubscriber

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

Class Method Summary (collapse)

• + (Object) reset_runtime
• + (Object) runtime
• + (Object) runtime=(value)

Instance Method Summary (collapse)

• - (LogSubscriber) initialize constructor

  A new instance of LogSubscriber.

• - (Object) logger
• - (Boolean) odd?
• - (Object) sql(event)

Methods inherited from ActiveSupport::LogSubscriber

attach_to, #call, flush_all!, flushable_loggers, log_subscribers, logger

16
17
18
19

# File 'activerecord/lib/active_record/log_subscriber.rb', line 16

def initialize
  super
  @odd_or_even = false
end

11
12
13
14

# File 'activerecord/lib/active_record/log_subscriber.rb', line 11

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

7
8
9

# File 'activerecord/lib/active_record/log_subscriber.rb', line 7

def self.runtime
  Thread.current["active_record_sql_runtime"] ||= 0
end

3
4
5

# File 'activerecord/lib/active_record/log_subscriber.rb', line 3

def self.runtime=(value)
  Thread.current["active_record_sql_runtime"] = value
end

42
43
44

# File 'activerecord/lib/active_record/log_subscriber.rb', line 42

def logger
  ActiveRecord::Base.logger
end

38
39
40

# File 'activerecord/lib/active_record/log_subscriber.rb', line 38

def odd?
  @odd_or_even = !@odd_or_even
end

21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

# File 'activerecord/lib/active_record/log_subscriber.rb', line 21

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

  name = '%s (%.1fms)' % [event.payload[:name], event.duration]
  sql  = event.payload[:sql].squeeze(' ')

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

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