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module ActiveRecord
class LogSubscriber < ActiveSupport::LogSubscriber
IGNORE_PAYLOAD_NAMES = ["SCHEMA", "EXPLAIN"]
def self.runtime=(value)
Thread.current[:active_record_sql_runtime] = value
end
def self.runtime
Thread.current[:active_record_sql_runtime] ||= 0
end
def self.reset_runtime
rt, self.runtime = runtime, 0
rt
end
def initialize
super
@odd_or_even = false
end
def render_bind(column, value)
if column
if column.binary?
value = "<#{value.bytesize} bytes of binary data>"
end
[column.name, value]
else
[nil, value]
end
end
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].squeeze(' ')
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
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
def odd?
@odd_or_even = !@odd_or_even
end
def logger
ActiveRecord::Base.logger
end
end
end
ActiveRecord::LogSubscriber.attach_to :active_record
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