Raphael Collet f14ae73a98 [FIX] models: do less snapshots in onchange()
As snapshots are costly to compute, we now create exactly two snapshots:
one initial snapshot and one final snapshot.  All intermediate checks
are done with respect to the initial snapshot.

Note also that checks are costly for x2many fields.  Therefore, once a
field has changed, it will never be checked again.  This optimization is
correct since, by contract, the onchanges of a field are processed at
most once.  This guarantees the absence of cycles in onchange.

For instance, assume that field A modifies fields B and C, and that
field C modifies fields D, E and F:
- before: 7 snapshots (snapshot, process A, snapshot, process B,
snapshot, process C, snapshot, process D, snapshot, process E,
snapshot, process F, snapshot)
- after: 2 snapshots (snapshot, process A, process B, process C,
process D, process E, process F, snapshot)

closes odoo/odoo#31872

Signed-off-by: Raphael Collet (rco) <rco@openerp.com>
2019-05-27 08:20:07 +00:00
2018-07-27 14:02:35 +02:00
2019-05-23 15:04:54 +00:00
2015-09-08 15:45:09 +02:00
2017-12-12 17:19:01 +01:00
…
2015-09-08 17:58:38 +02:00
…
2017-10-11 11:38:36 +02:00

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Odoo

Odoo is a suite of web based open source business apps.

The main Odoo Apps include an Open Source CRM, Website Builder, eCommerce, Warehouse Management, Project Management, Billing & Accounting, Point of Sale, Human Resources, Marketing, Manufacturing, Purchase Management, ...

Odoo Apps can be used as stand-alone applications, but they also integrate seamlessly so you get a full-featured Open Source ERP when you install several Apps.

Getting started with Odoo

For a standard installation please follow the Setup instructions from the documentation.

Then follow the developer tutorials

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