Our usage of domain on fields One2many seems to trigger an obscure behaviour on
onchange.
With the following (simplified) config:
Message(models.Model):
_name = 'test_new_api.message'
important = fields.Boolean('Important')
Discussion(models.Model):
_name = 'test_new_api.discussion'
name = fields.Char('Name')
important_emails = fields.One2Many('test_new_api.emailmessage', 'discussion',
domain=[('important', '=', True)])
Email(models.Model):
_name = 'test_new_api.emailmessage'
_inherits = {'test_new_api.message': 'message'}
discussion = fields.Many2one('test_new_api.discussion', 'Discussion')
message = fields.Many2one('test_new_api.message', 'Message')
Steps:
- We change 'name' on discussion, triggers an `onchange()` call
- we ends up filling cache on virtual record (on secondary fields, we calling
record.mapped('important_emails.important'))
- we get a cache miss ('important' field not provided, only 'important_emails' ids,
i.e with no change on existing records)
- we fill the cache, this mark 'important' field as modified
- because of commit 5676d81 and because 'important' is that case is a related (i.e
computed) field we triggers cache recomputation
- as there is no way to recompute 'important_emails' for virtual record (no real
ID) we ends up with empty 'important_emails' generating removal of existing records.
=> Finally changing any value for 'test_new_api.discussion' that trigger an onchange
will always reset 'important_emails' to empty
Fixed by Raphael Collet <rco@odoo.com>, and test by Xavier Alt <xal@odoo.com>.
Invalidate the cache of a x2many field when any of the fields appearing in its
domain is modified. Use the invalidation triggers mechanism for that purpose.
This fixes the case where the lines of a one2many field are modified several
times by onchange methods: instead of retrieving the most recent updates, we
merge them with former updates.
This solution was written as an improvement of a proposal made by Alexis
Delattre and Sébastien Beau as #11620.
When a new column has been added after that some data already exists,
the old lines will keep an empty/null value. So when we search is the new field
is equals to False or if it is different of True, we need to match the null
values.
close#9925
The risk was introduced by b7f1b9c.
IF _store_set_values() recall another _create() or _write(),
the recomputation mechanism enter in an infinite recursion
trying to reevaluate for each call exactly the same fields
for the same records than the previous one
This revision replaces the loop of _store_set_values()
by 2 nested loops:
- that not breaks the entire consumption
of recompute_old queue
(Tested thanks to revision a922d39),
- that allows to clear the queue
before each recomputations bundle fixing thereby the recursion
Closes#7558
The new-api record prefetching algorithm attempts
to load data for all known records from the requested
model (i.e. all IDs present in the environment cache),
regardless of how indirectly/remotely they were
referenced. An indirect parent record may therefore
be prefetched along with its directly browsed children,
possibly crossing company boundaries involuntarily.
This patch implements a fallback mechanism when
the prefetching failed due to what looks like an
ACL restriction.
The implementation of `_read_from_database` handle
ACL directly and set an `AccessError` as cache value
for restricted records.
If a model (like `mail.message`) overwrites `read` to
implements its own ACL checks and raises an `AccessError`
before calling `super()` (which will then call
`_read_from_database`), the cache will be not fill,
leading to an unexpected exception.
If this commit messae looks familiar to you, that's
simply because this is the new-api counterpart of
b7865502e4
Compute methods could give results that should not be considered as default
values. For instance, a related field usually defaults to a null value, which
is then set to the field with its inverse method by create(). This may violate
a non-null constraint if the original field is required. Therefore, compute
methods are no longer used to determine default values.
A squashed merge is required as the conversion of the apiculture branch from
bzr to git was not correctly done. The git history contains irrelevant blobs
and commits. This branch brings a lot of changes and fixes, too many to list
exhaustively.
- New orm api, objects are now used instead of ids
- Environements to encapsulates cr uid context while maintaining backward compatibility
- Field compute attribute is a new object oriented way to define function fields
- Shared browse record cache
- New onchange protocol
- Optional copy flag on fields
- Documentation update
- Dead code cleanup
- Lots of fixes
Xavier ALT
Raphael Collet
Holger Brunn
Jeremy Kersten
Olivier LAURENT
Christophe Simonis
Cédric Pigeon