I have one field in my .py file and I've created two different function for it:

scode=  fields.Char('Code', size=3, required=True)

def uppercase(self, cr, uid, ids, scode, context=None):
            if scode:
                result = {'value': {'scode': str(scode).upper()}}
                return result 

def get_lenght(self, cr, uid, ids, scode, context=None):
            if scode and len(scode) != 3:
                My_error_Msg = 'Error'
                raise osv.except_osv(("Warning!"), (My_error_Msg))
                return
                
            else:
                return scode
            
        def onchange_length_id(self, cr, uid, ids, scode, context=None):
            res = {'value': {'scode': self.get_lenght(cr, uid, ids, scode, context=context)}}
            return res 

Now, my question is: how can I use both functions in my view?

If I had only one method, I would write:

<field name="scode" on_change="uppercase(scode)"/> 

Any idea?

Thanks!