I am currently trying to map the following query into yii. Unfortunately without success.
SELECT SUM(timestampdiff(SECOND, start, end)) as working_time FROM user_work WHERE user_id=1
The goal is to sum up the total working time of a user. each user has multiple working entries with a start point and an endpoint (typ: timestamps). It is a 1:n relationship.
Then you could simply query the working time in YourModel or any other Model that is connected via a relation to YourModel e.g.
$workTime = YourModel::model()->with('workingTime')->findAllByPk(1); // or findAllByAttributes, etc...
// calculates the working time from AnotherModel via a relation to YourModel
$workTime2 = AnotherModel::model()->with('relationToYourModel.workingTime')->findAllByPk(1);