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module ActiveRecord
class QueryRecorder
attr_reader :log, :cached
def initialize(&block)
@log = []
@cached = []
ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block)
end
def show_backtrace(values)
Rails.logger.debug("QueryRecorder SQL: #{values[:sql]}")
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[:name]&.include?("CACHE")
@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
end
end
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