Class: ActiveRecord::LogSubscriber

Inherits:
ActiveSupport::LogSubscriber show all
Defined in:
activerecord/lib/active_record/log_subscriber.rb

Constant Summary

Constants inherited from ActiveSupport::LogSubscriber

ActiveSupport::LogSubscriber::BLACK, ActiveSupport::LogSubscriber::BLUE, ActiveSupport::LogSubscriber::BOLD, ActiveSupport::LogSubscriber::CLEAR, ActiveSupport::LogSubscriber::CYAN, ActiveSupport::LogSubscriber::GREEN, ActiveSupport::LogSubscriber::MAGENTA, ActiveSupport::LogSubscriber::RED, ActiveSupport::LogSubscriber::WHITE, ActiveSupport::LogSubscriber::YELLOW

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ActiveSupport::LogSubscriber

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

Constructor Details

#initialize ⇒ LogSubscriber

Returns a new instance of LogSubscriber.



16
17
18
19
 
# File 'activerecord/lib/active_record/log_subscriber.rb', line 16

def initialize
  super
  @odd_or_even = false
end

Class Method Details

.reset_runtime ⇒ Object 



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

.runtime ⇒ Object 



7
8
9
 
# File 'activerecord/lib/active_record/log_subscriber.rb', line 7

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

.runtime=(value) ⇒ Object 



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

Instance Method Details

#identity(event) ⇒ Object 



49
50
51
52
53
54
55
56
 
# File 'activerecord/lib/active_record/log_subscriber.rb', line 49

def identity(event)
  return unless logger.debug?

  name = color(event.payload[:name], odd? ? CYAN : MAGENTA, true)
  line = odd? ? color(event.payload[:line], nil, true) : event.payload[:line]

  debug "  #{name}  #{line}"
end

#logger ⇒ Object 



62
63
64
 
# File 'activerecord/lib/active_record/log_subscriber.rb', line 62

def logger
  ActiveRecord::Base.logger
end

#odd? ⇒ Boolean

Returns:

  • (Boolean) 


58
59
60
 
# File 'activerecord/lib/active_record/log_subscriber.rb', line 58

def odd?
  @odd_or_even = !@odd_or_even
end

#sql(event) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'activerecord/lib/active_record/log_subscriber.rb', line 21

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

  payload = event.payload

  return if 'SCHEMA' == payload[:name]

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

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