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# Copyright 2017-2018 Camptocamp - Simone Orsi
# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
from odoo import fields, models, api, exceptions, _
import logging
logger = logging.getLogger('[mail_digest]')
class MailDigest(models.Model):
_name = 'mail.digest'
_description = 'Mail digest'
_order = 'create_date desc'
name = fields.Char(
string="Name",
compute="_compute_name",
readonly=True,
)
user_id = fields.Many2one(
string='User',
comodel_name='res.users',
readonly=True,
required=True,
ondelete='cascade',
)
frequency = fields.Selection(
related='user_id.digest_frequency',
readonly=True,
)
message_ids = fields.Many2many(
comodel_name='mail.message',
string='Messages'
)
mail_id = fields.Many2one(
'mail.mail',
'Mail',
ondelete='set null',
)
state = fields.Selection(related='mail_id.state', readonly=True)
# To my future self: never ever change this field to `template_id`.
# When creating digest records within the context of mail composer
# (and possibly other contexts) you'll have a `default_template_id`
# key in the context which is going to override our safe default.
# This is going to break email generation because the template
# will be completely wrong. Lesson learned :)
digest_template_id = fields.Many2one(
'ir.ui.view',
'Qweb mail template',
ondelete='set null',
default=lambda self: self._default_digest_template_id(),
domain=[('type', '=', 'qweb')],
)
def _default_digest_template_id(self):
"""Retrieve default template to render digest."""
return self.env.ref('mail_digest.default_digest_tmpl',
raise_if_not_found=False)
@api.multi
@api.depends("user_id", "user_id.digest_frequency")
def _compute_name(self):
for rec in self:
rec.name = '{} - {}'.format(
rec.user_id.name, rec._get_subject())
@api.model
def create_or_update(self, partners, message):
"""Create or update digest.
:param partners: recipients as `res.partner` browse list
:param message: `mail.message` to include in digest
"""
for partner in partners:
digest = self._get_or_create_by_user(partner.real_user_id)
digest.message_ids |= message
return True
@api.model
def _get_by_user(self, user):
"""Retrieve digest record for given user.
:param user: `res.users` browse record
By default we lookup for pending digest without notification yet.
"""
domain = [
('user_id', '=', user.id),
]
return self.search(domain, limit=1)
@api.model
def _get_or_create_by_user(self, user):
"""Retrieve digest record or create it by user.
:param user: `res.users` record to create/get digest for
"""
existing = self._get_by_user(user)
if existing:
return existing
values = {'user_id': user.id, }
return self.create(values)
@api.model
def _message_group_by_key(self, msg):
"""Return the key to group messages by."""
return msg.subtype_id.id
@api.multi
def _message_group_by(self):
"""Group digest messages.
A digest can contain several messages.
To display them in a nice and organized form in your emails
we group them by subtype by default.
"""
self.ensure_one()
grouped = {}
for msg in self.message_ids:
grouped.setdefault(self._message_group_by_key(msg), []).append(msg)
return grouped
def _get_site_name(self):
"""Retrieve site name for meaningful mail subject.
If you run a website we get website's name
otherwise we default to current user's company name.
"""
# default to company
name = self.env.user.company_id.name
if 'website' in self.env:
# TODO: shall we make this configurable at digest or global level?
# Maybe you have a website but
# your digest msgs are not related to it at all or partially.
ws = None
try:
ws = self.env['website'].get_current_website()
name = ws.name
except RuntimeError:
# RuntimeError: object unbound -> no website request.
# Fallback to default website if any.
ws = self.env['website'].search([], limit=1)
if ws:
name = ws.name
return name
@api.multi
def _get_subject(self):
"""Build the full subject for digest's mail."""
# TODO: shall we move this to computed field?
self.ensure_one()
subject = '[{}] '.format(self._get_site_name())
if self.user_id.digest_frequency == 'daily':
subject += _('Daily update')
elif self.user_id.digest_frequency == 'weekly':
subject += _('Weekly update')
return subject
@api.multi
def _get_template_values(self):
"""Collect variables to render digest's template."""
self.ensure_one()
subject = self._get_subject()
template_values = {
'digest': self,
'subject': subject,
'grouped_messages': self._message_group_by(),
'base_url':
self.env['ir.config_parameter'].get_param('web.base.url'),
}
return template_values
@api.multi
def _get_email_values(self, template=None):
"""Collect variables to create digest's mail message."""
self.ensure_one()
template = template or self.digest_template_id
if not template:
raise exceptions.UserError(_(
'You must pass a template or set one on the digest record.'
))
subject = self._get_subject()
template_values = self._get_template_values()
values = {
'email_from': self.env.user.company_id.email,
'recipient_ids': [(4, self.user_id.partner_id.id)],
'subject': subject,
'body_html': template.with_context(
**self._template_context()
).render(template_values),
}
return values
def _create_mail_context(self):
"""Inject context vars.
By default we make sure that digest's email
will have only digest's user among recipients.
"""
return {
'notify_only_recipients': True,
}
@api.multi
def _template_context(self):
"""Rendering context for digest's template.
By default we enforce user's language.
"""
self.ensure_one()
return {
'lang': self.user_id.lang,
}
@api.multi
def create_email(self, template=None):
"""Create `mail.message` records for current digests.
:param template: qweb template instance to override default digest one.
"""
mail_model = self.env['mail.mail'].with_context(
**self._create_mail_context())
created = []
for item in self:
if not item.message_ids:
# useless to create a mail for a digest w/ messages
# messages could be deleted by admin for instance.
continue
values = item.with_context(
**item._template_context()
)._get_email_values(template=template)
item.mail_id = mail_model.create(values)
created.append(item.id)
if created:
logger.info('Create email for digest IDS=%s', str(created))
return created
@api.multi
def action_create_email(self):
return self.create_email()
@api.model
def process(self, frequency='daily', domain=None):
"""Process existing digest records to create emails via cron.
:param frequency: lookup digest records by users' `digest_frequency`
:param domain: pass custom domain to lookup only specific digests
"""
if not domain:
domain = [
('mail_id', '=', False),
('user_id.digest_frequency', '=', frequency),
]
self.search(domain).create_email()