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populate wizard form dynamically

on 10/23/13, 5:49 PM 4,090 views

I'm relatively new to OpenERP development but I think I can gain much understanding if I could get a rough example of how to do the following (in OpenERP version 7):

I created a wizard. In a view I have a button to open the wizard form:

This opens up correctly the window (dialog) and I can call methods to do stuff from buttons within this wizard form defined in the wizard object.

I want to be able to populate the form view dynamically using records from another model (and then do other stuff upon saving form).

For example in "purchase orders" and for a specific purchase order, I want to get all the products linked to this purchase order (that would be displayed in the tree view).

If I have the button (to launch window/dialog form) placed within the view of the purchase order, the main thing I would like to be able to do is populate the form for the given purchase order with the products for this purchase order.

My question is how do I instantiate the wizard form with the id of the current purchase order, then access the product items for this purchase order.

I've looked into other examples but with older version of OpenERP.

Any help/pointers is appreciated!


Brett Lehrer

--Brett Lehrer--
| 5 4 8
Milwaukee, United States
--Brett Lehrer--
Director of IT and open source enthusiast.
Brett Lehrer
On 10/24/13, 1:20 AM

The ID of the record you're coming from is in the context, context['active_id']. You'll also have context['active_ids'], which is a list of the IDs you came from, which is used if you're coming from a list where more than one record is checked.

To load those in automatically, add a field for that ID (or those IDs) and set a default value in the wizard to a function that reads context for the active_id or active_ids. Something like:

def _get_active_id(self, cr, uid, ids, context=None):
    if context is None: context = {}
    return context.get('active_id', False)

_columns = {
    'purchase_id': fields.many2one('purchase.order', 'Purchase Order'),

_defaults = {
    'purchase_id': _get_active_id,

def onchange_purchase(self, cr, uid, ids, purchase_id, context=None):
    if context is None: context = {}
    res = {}
    if purchase_id:
        # Do extra stuff here now that you have the ID loaded
        # res['field_name'] = important_value
    return {'value': res}

An alternative method you might want to use instead is to create the wizard record FIRST, and then load the popup with all of the values in place (there are some technical reasons why that's nice but I'll let you find out why). Your button from the original form would be an object type rather than an action type, and the function it calls would be something like this:

def open_wizard(self, cr, uid, ids, context=None):
    if context is None: context = {}
    # generic error checking
    if not ids: return False
    if not isinstance(ids, list): ids = [ids]

    wizard_id = self.pool['my.wizard'].create(cr, uid, vals={'purchase_id':ids[0]}, context)
    return {
        'name': 'Purchase Wizard',
        'view_type': 'form',
        'view_mode': 'form',
        'res_model': 'my.wizard',
        'res_id': wizard_id,
        'type': 'ir.actions.act_window',
        'target': 'new',
        'context': context,

great, thank you. I will get back on my results.

on 10/24/13, 1:28 AM

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Asked: 10/23/13, 5:49 PM
Seen: 4090 times
Last updated: 3/16/15, 8:10 AM