I have created a small module  to update the details of employee who visiting client location according to the date.  I have created fields like .

Previous company     current company 

previous start Date                  current start Date

End Date 

In this i have auto filled the  "current start date " field and End date field , i also wann to display the value of  "current start date"   of previous record in the field "previous start date " . so that  it will show whn he had started the previous project .

Am new to Odoo coding , so need some help in this .