I was hoping to get assistance here, i have a database table called* (logging)* that has 3 fields, *(startingDistanceValue, endingDistanceValue and distanceTravelled)*, distanceTravelled is the difference between endingDistanceValue and startingDistanceValue, when I start my trip i enter startingDistanceValue & subit my form, when i arrive i update & edit my form by entering endingDistanceValue, what i want is that by entering endingDistanceValue then the distanceTravelled is calculated automatically and acquires its value automatically then i submit my form for saving. How can i achieve this in web2py?
*Model:* db.define_table('logging', Field('startingDistanceValue','integer', requires= IS_NOT_EMPTY()), Field('endingDistanceValue','integer', requires=IS_NOT_EMPTY ()), Field('distanceTravelled')) Regards: Mostwanted -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.