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# frozen_string_literal: true
module ActiveRecord
class QueryRecorder
attr_reader :log, :skip_cached, :cached
def initialize(skip_cached: true, &block)
@log = []
@cached = []
@skip_cached = skip_cached
ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block)
end
def show_backtrace(values)
Rails.logger.debug("QueryRecorder SQL: #{values[:sql]}")
Gitlab::Profiler.clean_backtrace(caller).each { |line| Rails.logger.debug(" --> #{line}") }
end
def callback(name, start, finish, message_id, values)
show_backtrace(values) if ENV['QUERY_RECORDER_DEBUG']
if values[:cached] && skip_cached
@cached << values[:sql]
elsif !values[:name]&.include?("SCHEMA")
@log << values[:sql]
end
end
def count
@log.count
end
def cached_count
@cached.count
end
def log_message
@log.join("\n\n")
end
def occurrences
@log.group_by(&:to_s).transform_values(&:count)
end
end
end
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