Hello. I'm using Odoo V13.0, and I want to write a salary rule that allows me to calculate employee's working age and add this money to his/her payslip.
What I'm thinking is this:
First, in salary rule range, I want to calculate the the working age of an employee based on his/her contract.start_date (my problem is that I have no idea how could I get this date in code)
After having this working age, I want to set some conditions using it, i.e. if working_age (again, I don't know how to get this variable as well) is less than 1 year, the result is the result, no changes; if it's longer than 1 year, I want to add some money to his/her salary, etc.
How can I write this salary rule? Thanks.