[IMP] mail: make assignation email a notification

Current behavior when assigning someone as responsible of a document is
to send him an email if he works using emails. Technically it is done
when writing on user_id field and based on notification_type field value
of the user.

This commit changes that behavior to push a notification to the new
responsible. It uses the recently-introduced message_notify method
allowing to push notification to recipients without being linked to
a document. It means people working in Odoo receive a message in their
Inbox while people working by email receive an email.

Assignation message contains a link to the document meaning it is always
possible to go to the document. Notification email uses the new template
defined recently. It allow to have a notification email a bit classy.

This commit implies that more notifications are created. Indeed previously
to this commit no notification were created for partners without user
or for users working in Odoo. There is therefore a performance test whose
counter increases and a slight increase in query count when installing
all modules, about 1K queries on 581K.

0 files changed, 0 insertions, 0 deletions