Ir al contenido
Se marcó esta pregunta
3 Respuestas
12187 Vistas
Avatar
Abegail Sanchez

I just want to limit the item that can be input in my

module( let's say 20 lines) which has one2many relationship.

Avatar
Descartar
Avatar
Abegail Sanchez
Autor Mejor respuesta

I made some dirty hack in js

I added this line:

if(this.o2m.options.add_limit){
                if(this.records.length < this.o2m.options.add_limit){
                    this._super.apply(this, arguments);
                }else{
                    alert('Cannot add an item \nLimit Exceed:'+this.o2m.options.add_limit);
                }
            }else{
                this._super.apply(this, arguments);
            }

and this in my view.xml:

<field name="one2many_field' options="{"add_limit":28}" />

So the user cannot add item next of it.

 

Avatar
Descartar
Avatar
Cybrosys Techno Solutions Pvt.Ltd
Mejor respuesta

Hi,

Here is a more simpler method,

Use @api.constrains to limit the adding of item in a one2many field

Here is sample code:

class SaleOrder(models.Model):
    _name = 'sale.order'
    _description = 'Sale Order'

    name = fields.Char(string='Name')
    sale_lines = fields.One2many('sale.order.line', 'order_id', string='Sale Lines')

    @api.constrains('sale_lines')
    def _check_sale_lines(self):
        for record in self:
            if len(record.sale_lines) > 20:
                raise ValidationError('Not more than 20 lines')

When a user attempts to add more than 20 lines to a sale order, the constraint will be triggered and prevent the change from being saved.

Regards

Avatar
Descartar
Avatar
Nirav Jani
Mejor respuesta

Hello,

you can use limit in one2many field. like this:

'order_line': fields.one2many('sale.order.line', 'order_id', 'Order Lines', limit=10),

 

Avatar
Descartar
Abegail Sanchez
Autor

It will limit only the display but adding can still continue. What I mean is that adding of item should stop after 20 lines. Or the "add item" should disappear.

Nirav Jani

Hello you can check on create method like this: def create(self, cr, uid, vals, context=None): if len(vals.get('line_ids')) > 3: raise osv.except_osv(_('Warning!'), _('Record limit is over!'))