Action returned from Python: if view_mode is 'tree', no record is displayed

It works in last revision but it is *extremely* slow and heavy (my computer fan spins like crazy) with many records, compared to the same action in DB fired from a menu item.

> When an action is returned from a python method with a "tree" view mode

Tree view mode (a list) or tree view type (a tree)? (just to be sure I understand what you mean)

Do you have an example in standard addons?

Tree view *mode*. Unfortunately I can't seem to find any example in standard addons :-/

Tried reproducing, no issue there: added a button@type=object to a view, calling into a handler method whose body is just the following:

    return {
            'type': 'ir.actions.act_window',
            'view_mode': 'tree',
            'res_model': some_model
    }

the list opens rapidly and without issues.

Don't hesitate reopening the bug or opening a new one with more information or a repro case (a minimal openerp module exposing the issue for instance), but for now I'm closing it as invalid as what you describe seems to work with no issue.

Still same problem. Are you sure you tried with enough records? I have 29000 of them... With the Python action, it is still as slow as possible, and half the time it even results in freezing Chrome. Still no problem with the regular action.

Ah yes, there's no default limit in that case which could be a bit of an issue when the records count is big.

listview limits handling reworked in trunk revision <email address hidden> problem should be fixed (or at least significantly improved upon)

Yes indeed, this is much better :-)