Openerp function fields

Question

Hey I\'m new to openerp and I need help to create a function field called Total that calculates the sum of all the fields of the same object... eg.

_name = \         


        

Answer 1

def get_total(self, cr, uid, ids, field_name, arg, context):
    res = []
    perfos = self.browse(cr, uid, ids, context)
    for perfo in perfos:
        res[perfo.id] = perfo.p + perfo.b

    return res