You want to create a working schedule for each employee.

Human resource->Contract->working schedule

Then automatically get the total no.of days for each employee.

Python code::::

datej = str(payslip.date_to)

datek = str(payslip.date_from)

dj = datej[-2:]

x=0

new = 0

while (x<=31):

x= x+1

if str(x) == dj or "0"+str(x) == dj:

new= x

dk = datek[-2:]

y=0

old = 0

while (y<=31):

y= y+1

if str(y) == dk or "0"+str(y) == dk:

old= y

no_of_days = new-old + 1

result = no_of_days