[MERGE] [FIX] mail, email_template: fix attachment duplication and clean attachment management

The way attachments are linked to the document has been cleaned. Posting method message_post may receives 2 arguments:
- attachment_ids: those linked to the wizard model (mail.compose.message) are linked to the document (res_model, res_id)
- attachments: the tuples are used to create new attachments linked to the document
The wizard does not set the res_model and res_id of attachments anymore, delegating this job to message_post.

The mail.message and mail.compose.message now use their respective attachment_ids field when possible. This is done instead of reading/creating new attachments based on the attachments tuple each time a mail.compose.message is processed. Email templates now also use attachment_ids, in particular when generating emails, instead of using the attachments tuple. Only reports are still generated on the fly and put into attachments instead of attachment_ids.

A cron job has been added to unlink 'lost' attachments. Those are attachments:
- linked to 'mail.compose.message'
- with res_id=0 (due Chatter used in minimal mode or reports generated by templates before the wizard has an ID)
- with no activity for more than one day (create_date and write_date)

bzr revid: tde@openerp.com-20130411112033-mqph9vjlcjkoolfs

0 files changed, 0 insertions, 0 deletions