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# frozen_string_literal: true
module Gitlab
module Database
module Migrations
module Observers
class QueryDetails < MigrationObserver
def before
file_path = File.join(output_dir, "#{observation.version}_#{observation.name}-query-details.json")
@file = File.open(file_path, 'wb')
@writer = Oj::StreamWriter.new(@file, {})
@writer.push_array
@subscriber = ActiveSupport::Notifications.subscribe('sql.active_record') do |*args|
record_sql_event(*args)
end
end
def after
ActiveSupport::Notifications.unsubscribe(@subscriber)
@writer.pop_all
@writer.flush
@file.close
end
def record
# no-op
end
def record_sql_event(_name, started, finished, _unique_id, payload)
@writer.push_value({
start_time: started.iso8601(6),
end_time: finished.iso8601(6),
sql: payload[:sql],
binds: payload[:type_casted_binds]
})
end
end
end
end
end
end
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