Show 3 fields input in one single field

Question

I wonder if there is some way to show in one field, a concatenation of 3 other fields, already in the same form.

Like for example:

'field_1' : fields.integer('Campo 1'),
 field_2' : fields.integer('Campo 2'),
 field_3' : fields.integer('Campo 3'),

Then show the inputs of these 3 fields concatenated in one single field:

field_concatenated : fields.related(?)('field_1', 'field_2', 'field_3', 'Name of the field'),

I put an '?' sign cause i actually don't know how to achieve this, maybe using a related type one? By the way the 3 fields are on the same class-form.

The resulting field could be readonly, and show up after the form has been saved.

I hope i've explained myself.

Thanks in advance

EDIT

The fields can be of the type integer and char

2nd EDIT

Actual Example:

'empresa' : fields.integer('Empresa'),
'provee' : fields.integer('Proveedor'),
'soli_cant' : fields.integer('Cantidad de Solicitudes'),
'dest' : fields.char('Destino'),
'anho' : fields.integer('Año'),

So, after these fields are filled manually, the resulting field have to show me a concatenation of these 4 fields, in a format like empresa-proveesoli_cant-dest-anho

Being provee and soli_cant one after the another, (without the '-') if it can't be possible then that show me the concatenation without separator

Maybe it isn't necessarily declared on the python code, maybe there is some shortcut in the xml view?

Something like <field name="empresa" "provee" "soli_cant" "dest" "anho" /> idk...

3rd EDIT

The actual code i'm using right now (Thanks to Ethan Furman):

The columns:

    'empresa' : fields.integer('Empresa'),
    'provee' : fields.integer('Proveedor'),
    'soli_cant' : fields.integer('Cantidad de Solicitudes'),
    'dest' : fields.char('Destino'),
    'anho' : fields.integer('Año'),

The function with it's column:

def _combinalos(self, cr, uid, ids, field_name, args, context=None):
    values = {}
    for id in ids:
        rec = self.browse(cr, uid, [id], context=context)[0]
        values[id] = {}
        values[id][field_name] = '%s %s %s %s %s' %(rec.empresa, rec.provee, rec.soli_cant, rec.dest, rec.anho)
    return values

columns = {
    'nombre' : fields.function(_combinalos, string='Referencia de Pedido', type='char', arg=('empresa','provee','soli_cant', 'dest', 'anho'), method=True),

All this on the same class of course.

Then i call it from my xml view like this:

<h1>
   <label string="Request for Quotation " attrs="{'invisible': [('state','not in',('draft','sent'))]}"/>
   <label string="Purchase Order " attrs="{'invisible': [('state','in',('draft','sent'))]}"/>
   <field name="nombre" class="oe_inline" readonly="1" />
</h1>

The label string is to filter if this is a Request for Quotation or a Purchase Order

After all this, i do fill the 5 fields of integer and char type, but still don't get these fields 'concatenated' in one string, or title, just a label saying [object Object], it could be a label issue? String name of function in the column maybe?

Actually i don't, but i can write down one ASAP for clarification purposes, i'm gonna edit my question. — NeoVe

Ethan Furman Ethan Furman · Accepted Answer · 2013-08-03T01:15:38

Make a new functional field and combine the three other fields there:

def _combine(self, cr, uid, ids, field_name, args, context=None):
    values = {}
    for id in ids:
        rec = self.browse(cr, uid, [id], context=context)[0]
        values[id] = {}
        values[id] = '%s %s %s' % (rec.field1, rec.field2, rec.field3)
    return values

_columns = {
    ...
    fields.function(_combine, string='three fields in one!', type='char',
                    arg=('field1','field2','field3'), method=True),

Note: untested code

The _combine method should be part of the class with the other columns, and the fields.function should also be in that class' _columns.

Show 3 fields input in one single field

1 Answers