[ADD] mass_mailing_sending_queue addon

8 years ago · 29fae520a4
17 changed files with 968 additions and 0 deletions
--- a/mass_mailing_sending_queue/README.rst
+++ b/mass_mailing_sending_queue/README.rst
@ -0,0 +1,93 @@
+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
+
+==========================
+Mass mailing sending queue
+==========================
+
+This module adds a queue for generating mail records when mass mailing
+'Send to All' button is clicked. This is an additional queue, apart from
+the existing one (implemented in addons/mail) for doing the actual sending.
+
+
+Configuration
+=============
+
+There is a system parameter, 'mail.mass_mailing.sending.batch_size'
+(default value is 500), to control how many emails are created in each
+cron iteration (method 'mail.mass_mailing.sending.cron()').
+
+
+Usage
+=====
+
+Without this module, when 'Send to All' button is clicked at mass mailing form,
+all 'mail.mail' and 'mail.mail.statistics' objects are created. This process
+might take a long time if the recipient list is 10k+ and the famous
+"Take a minute to get a coffee, because it's loading..." text might appear.
+
+With this new queue, mass mailing will appear in 'Sending' state to the user
+until all emails are sent or failed. After 'Send to All' button is clicked,
+the user will quickly land to the mass mailing form.
+
+In 'Mass mailing' form, a new tab "Sending tasks" has been added where the
+user can check the Sent mails history.
+
+In 'Settings > Technical > Email > Mass mailing sending' allowed users can
+track all running mass mailing sending objects and see:
+
+* Pending recipients: Number of recipients for which the email is not yet created.
+* Start date: Date when user press 'Send to All' button.
+* Mails to be sent: number of emails waiting to be sent.
+* Sent mails: number of emails successfully sent.
+* Failed mails: number of unsent emails due to error.
+
+NOTE: User will not be able to send the same mass mailing again if another
+one is ongoing. An UserError exception is raised in this case.
+
+NOTE: If number of recipients are less than 'batch_size / 2', then all
+emails are created when 'Send to All' button is clicked (standard way).
+Although a sending object is created anyway in order to be consistent.
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+   :alt: Try me on Runbot
+   :target: https://runbot.odoo-community.org/runbot/205/8.0
+
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/social/issues>`_. In case of trouble, please
+check there if your issue has already been reported. If you spotted it first,
+help us smashing it by providing a detailed and welcomed feedback.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Antonio Espinosa <antonio.espinosa@tecnativa.com>
+* Pedro M. Baeza <pedro.baeza@tecnativa.com>
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit https://odoo-community.org.
--- a/mass_mailing_sending_queue/init.py
+++ b/mass_mailing_sending_queue/init.py
@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import models
--- a/mass_mailing_sending_queue/openerp.py
+++ b/mass_mailing_sending_queue/openerp.py
@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+{
+    "name": "Mass mailing sending queue",
+    "summary": "A new queue for sending mass mailing",
+    "version": "8.0.1.0.0",
+    "category": "Marketing",
+    "website": "https://odoo-community.org/",
+    "author": "Tecnativa, Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "application": False,
+    "installable": True,
+    "depends": [
+        "mass_mailing",
+    ],
+    "data": [
+        "data/ir_config_parameter.xml",
+        "data/ir_cron.xml",
+        "security/ir.model.access.csv",
+        "views/mass_mailing_sending_view.xml",
+        "views/mass_mailing_view.xml",
+    ],
+}
--- a/mass_mailing_sending_queue/data/ir_config_parameter.xml
+++ b/mass_mailing_sending_queue/data/ir_config_parameter.xml
@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+
+<openerp>
+<data noupdate="1">
+
+<record id="sending_batch_size" model="ir.config_parameter" forcecreate="True">
+    <field name="key">mail.mass_mailing.sending.batch_size</field>
+    <field name="value">500</field>
+    <field name="group_ids" eval="[(6, False, [ref('base.group_system')])]" />
+</record>
+
+</data>
+</openerp>
--- a/mass_mailing_sending_queue/data/ir_cron.xml
+++ b/mass_mailing_sending_queue/data/ir_cron.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+
+<openerp>
+<data noupdate="1">
+
+<record id="cronjob" model="ir.cron">
+    <field name="name">Mass mailing sending queue</field>
+    <field name="interval_type">minutes</field>
+    <field name="interval_number">1</field>
+    <field name="numbercall">-1</field>
+    <field name="model">mail.mass_mailing.sending</field>
+    <field name="function">cron</field>
+    <field name="nextcall">2016-01-01</field>
+</record>
+
+</data>
+</openerp>
--- a/mass_mailing_sending_queue/i18n/es.po
+++ b/mass_mailing_sending_queue/i18n/es.po
@ -0,0 +1,156 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#	* mass_mailing_sending_queue
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 8.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2016-09-08 13:56+0000\n"
+"PO-Revision-Date: 2016-09-08 13:56+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,create_uid:0
+msgid "Created by"
+msgstr "Creado por"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,create_date:0
+msgid "Created on"
+msgstr "Creado en"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,display_name:0
+msgid "Display Name"
+msgstr "Nombre mostrado"
+
+#. module: mass_mailing_sending_queue
+#: model:ir.model,name:mass_mailing_sending_queue.model_mail_mail_statistics
+msgid "Email Statistics"
+msgstr "Estadísticas de correo electrónico"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,failed:0
+msgid "Emails failed"
+msgstr "Correos electrónicos fallidos"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,sending:0
+msgid "Emails sending"
+msgstr "Emails enviándose"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,sent:0
+msgid "Emails sent"
+msgstr "Emails enviados"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+#: selection:mail.mass_mailing.sending,state:0
+msgid "Enqueued"
+msgstr "En cola"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+msgid "Group By"
+msgstr "Agrupar por"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,id:0
+msgid "ID"
+msgstr "ID"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,__last_update:0
+msgid "Last Modified on"
+msgstr "Última modficación en"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,write_uid:0
+msgid "Last Updated by"
+msgstr "Última modficación por"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,write_date:0
+msgid "Last Updated on"
+msgstr "Última actualización en"
+
+#. module: mass_mailing_sending_queue
+#: model:ir.model,name:mass_mailing_sending_queue.model_mail_mass_mailing
+msgid "Mass Mailing"
+msgstr "Envío masivo"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+#: field:mail.mass_mailing.sending,mass_mailing_id:0
+msgid "Mass mailing"
+msgstr "Envío masivo"
+
+#. module: mass_mailing_sending_queue
+#: model:ir.ui.menu,name:mass_mailing_sending_queue.menu_mass_mailing_sending
+#: field:mail.mail.statistics,mass_mailing_sending_id:0
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_form
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+msgid "Mass mailing sending"
+msgstr "Envío de correo masivo"
+
+#. module: mass_mailing_sending_queue
+#: model:ir.actions.act_window,name:mass_mailing_sending_queue.action_view_mail_mass_mailing_sending
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_tree
+msgid "Mass mailing sendings"
+msgstr "Envíos de correo masivo"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing,pending:0
+msgid "Pending"
+msgstr "Pendiente"
+
+#. module: mass_mailing_sending_queue
+#: code:addons/mass_mailing_sending_queue/models/mail_mass_mailing.py:23
+#: code:addons/mass_mailing_sending_queue/models/mail_mass_mailing_sending.py:67
+#, python-format
+msgid "Please select recipients."
+msgstr "Por favor, seleccione algún destinatario"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,pending:0
+msgid "Recipients pending"
+msgstr "Destinatarios pendientes"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+msgid "Running"
+msgstr "Ejecutándose"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+#: selection:mail.mass_mailing.sending,state:0
+msgid "Sending"
+msgstr "Enviando"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing.sending:mass_mailing_sending_queue.view_mail_mass_mailing_sending_search
+#: selection:mail.mass_mailing.sending,state:0
+msgid "Sent"
+msgstr "Enviado"
+
+#. module: mass_mailing_sending_queue
+#: field:mail.mass_mailing.sending,state:0
+msgid "State"
+msgstr "Estado"
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing:mass_mailing_sending_queue.view_mail_mass_mailing_form
+msgid "recipients pending for creating email."
+msgstr "destinatarios pendientes de crear el correo electrónico."
+
+#. module: mass_mailing_sending_queue
+#: view:mail.mass_mailing:mass_mailing_sending_queue.view_mail_mass_mailing_form
+msgid "{'invisible': [('scheduled', '=', 0), ('pending', '=', 0)]}"
+msgstr "{'invisible': [('scheduled', '=', 0), ('pending', '=', 0)]}"
--- a/mass_mailing_sending_queue/models/init.py
+++ b/mass_mailing_sending_queue/models/init.py
@ -0,0 +1,8 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import mail_mail_statistics
+from . import mail_mass_mailing
+from . import mail_mass_mailing_sending
+from . import mail_mail
--- a/mass_mailing_sending_queue/models/mail_mail.py
+++ b/mass_mailing_sending_queue/models/mail_mail.py
@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# © 2016 Antonio Espinosa - <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from openerp import models, api
+
+
+class MailMail(models.Model):
+    _inherit = 'mail.mail'
+
+    @api.model
+    def _postprocess_sent_message(self, mail, mail_sent=True):
+        # Read before super, because mail will be removed if sent successfully
+        stats = mail.statistics_ids
+        res = super(MailMail, self)._postprocess_sent_message(
+            mail, mail_sent=mail_sent)
+        for stat in stats.filtered(
+                lambda r: r.mass_mailing_sending_id.state == 'sending'):
+            stat.mass_mailing_sending_id._process_sending()
+        return res
--- a/mass_mailing_sending_queue/models/mail_mail_statistics.py
+++ b/mass_mailing_sending_queue/models/mail_mail_statistics.py
@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# © 2016 Antonio Espinosa - <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from openerp import api, fields, models
+
+
+class MailMailStatistics(models.Model):
+    _inherit = 'mail.mail.statistics'
+
+    mass_mailing_sending_id = fields.Many2one(
+        comodel_name='mail.mass_mailing.sending',
+        string="Mass mailing sending", readonly=True)
+
+    @api.model
+    def create(self, vals):
+        res = super(MailMailStatistics, self).create(vals)
+        res.mass_mailing_sending_id = \
+            self.env.context.get('mass_mailing_sending_id', False)
+        return res
--- a/mass_mailing_sending_queue/models/mail_mass_mailing.py
+++ b/mass_mailing_sending_queue/models/mail_mass_mailing.py
@ -0,0 +1,103 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from openerp import api, fields, models, _
+from openerp.exceptions import Warning as UserError
+
+
+class MailMassMailing(models.Model):
+    _inherit = 'mail.mass_mailing'
+
+    state = fields.Selection(selection_add=[
+        ('sending', "Sending"),
+    ])
+    pending_count = fields.Integer(
+        string="Pending", compute='_compute_pending_count')
+    mass_mailing_sending_ids = fields.One2many(
+        comodel_name='mail.mass_mailing.sending', readonly=True,
+        inverse_name='mass_mailing_id', string="Sending tasks")
+
+    @api.model
+    def read_group(self, domain, fields, groupby, **kwargs):
+        # Add 'sending' state group, even if no results.
+        # This is needed for kanban view, columns are showed always
+        res = super(MailMassMailing, self).read_group(
+            domain, fields, groupby, **kwargs)
+        if groupby and groupby[0] == "state":
+            group_domain = domain + [('state', '=', 'sending')]
+            count = self.search_count(group_domain)
+            res.append({
+                '__context': {'group_by': groupby[1:]},
+                '__domain': group_domain,
+                'state': ('sending', _("Sending")),
+                'state_count': count,
+            })
+        return res
+
+    def _sendings_get(self):
+        self.ensure_one()
+        return self.env['mail.mass_mailing.sending'].search([
+            ('mass_mailing_id', '=', self.id),
+            ('state', 'in', ('enqueued', 'sending')),
+        ])
+
+    @api.multi
+    def send_mail(self):
+        if not self.env.context.get('sending_queue_enabled', False):
+            return super(MailMassMailing, self).send_mail()
+        for mailing in self:
+            m_sending = self.env['mail.mass_mailing.sending']
+            sendings = mailing._sendings_get()
+            if sendings:
+                raise UserError(_(
+                    "There is another sending task running. "
+                    "Please, be patient. You can see all the sending tasks in "
+                    "'Sending tasks' tab"
+                ))
+            res_ids = mailing.get_recipients(mailing)
+            batch_size = m_sending.batch_size_get()
+            if not res_ids:
+                raise UserError(_("Please select recipients."))
+            sending = m_sending.create({
+                'state': 'draft',
+                'mass_mailing_id': mailing.id,
+            })
+            sending_state = 'enqueued'
+            if len(res_ids) < (batch_size / 2):
+                mailing.with_context(
+                    mass_mailing_sending_id=sending.id,
+                    sending_queue_enabled=False).send_mail()
+                sending_state = 'sending'
+            sending.state = sending_state
+            mailing.write({
+                'sent_date': fields.Datetime.now(),
+                'state': 'sending',
+            })
+        return True
+
+    @api.model
+    def get_recipients(self, mailing):
+        sending = False
+        sending_id = self.env.context.get('mass_mailing_sending_id', False)
+        if sending_id:
+            sending = self.env['mail.mass_mailing.sending'].browse(sending_id)
+        try:
+            res_ids = super(MailMassMailing, self).get_recipients(mailing)
+        except UserError as e:
+            if sending:
+                sending._send_error(e)
+            else:
+                raise
+            return []
+        if sending:
+            res_ids = sending.get_recipient_batch(res_ids)
+        return res_ids
+
+    @api.multi
+    def _compute_pending_count(self):
+        for mailing in self:
+            sendings = mailing._sendings_get()
+            mailing.pending_count = (
+                sum(sendings.mapped('pending_count')) +
+                sum(sendings.mapped('sending_count')))
--- a/mass_mailing_sending_queue/models/mail_mass_mailing_sending.py
+++ b/mass_mailing_sending_queue/models/mail_mass_mailing_sending.py
@ -0,0 +1,190 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+import logging
+from openerp import api, fields, models, tools
+
+_logger = logging.getLogger(__name__)
+
+BATCH_SIZE_DEFAULT = 500
+
+
+class MailMassMailingSending(models.Model):
+    _name = 'mail.mass_mailing.sending'
+
+    state = fields.Selection([
+        ('draft', "Draft"),
+        ('enqueued', "Enqueued"),
+        ('sending', "Sending"),
+        ('sent', "Sent"),
+        ('error', "Error"),
+    ], string="State", required=True, copy=False, default='enqueued')
+    mass_mailing_id = fields.Many2one(
+        string="Mass mailing", comodel_name='mail.mass_mailing',
+        readonly=True, ondelete='cascade')
+    pending_count = fields.Integer(
+        string="Pending recipients", compute='_compute_pending_count')
+    sending_count = fields.Integer(
+        string="Mails to be sent", compute='_compute_sending_count')
+    sent_count = fields.Integer(
+        string="Sent mails", compute='_compute_sent_count')
+    failed_count = fields.Integer(
+        string="Failed mails", compute='_compute_failed_count')
+    error = fields.Char(string="Error message")
+    date_start = fields.Datetime(
+        string="Date start", default=fields.Datetime.now())
+    date_end = fields.Datetime(string="Date end")
+
+    @api.model
+    def batch_size_get(self):
+        m_param = self.env['ir.config_parameter']
+        batch_size = BATCH_SIZE_DEFAULT
+        batch_size_str = m_param.get_param(
+            'mail.mass_mailing.sending.batch_size')
+        if batch_size_str and batch_size_str.isdigit():
+            batch_size = int(batch_size_str)
+        return batch_size
+
+    @api.multi
+    def pending_emails(self):
+        return self.env['mail.mail.statistics'].search([
+            ('mass_mailing_sending_id', 'in', self.ids),
+            ('scheduled', '!=', False),
+            ('sent', '=', False),
+            ('exception', '=', False),
+        ])
+
+    @api.multi
+    def get_recipient_batch(self, res_ids):
+        batch_size = self.batch_size_get()
+        already_enqueued = self.env['mail.mail.statistics'].search([
+            ('mass_mailing_sending_id', 'in', self.ids),
+        ])
+        set_ids = set(res_ids)
+        new_ids = list(
+            set_ids - set(already_enqueued.mapped('res_id')))
+        if not self.env.context.get('sending_avoid_batch', False):
+            new_ids = new_ids[:batch_size]
+        if set(new_ids) != set_ids:
+            return new_ids
+        return res_ids
+
+    @api.multi
+    def pending_recipients(self):
+        self.ensure_one()
+        m_mailing = self.env['mail.mass_mailing'].with_context(
+            mass_mailing_sending_id=self.id, sending_avoid_batch=True)
+        return m_mailing.get_recipients(self.mass_mailing_id)
+
+    @api.multi
+    def send_mail(self):
+        for sending in self:
+            try:
+                sending.with_context(mass_mailing_sending_id=sending.id).\
+                    mass_mailing_id.send_mail()
+            except Exception as e:
+                sending._send_error(e)
+        return True
+
+    @api.multi
+    def _send_error(self, exception):
+        self.ensure_one()
+        self.write({
+            'error': tools.ustr(exception),
+            'state': 'error',
+            'date_end': fields.Datetime.now(),
+        })
+        self.mass_mailing_id.state = 'done'
+
+    @api.multi
+    def _process_enqueued(self):
+        # Create mail_mail objects not created
+        self.ensure_one()
+        if self.pending_recipients():
+            self.send_mail()
+        # If there is no more recipient left, mark as sending
+        if not self.pending_recipients():
+            self.state = 'sending'
+            self._process_sending()
+        elif self.mass_mailing_id.state not in {'sending', 'error'}:
+            self.mass_mailing_id.state = 'sending'
+
+    @api.multi
+    def _process_sending(self):
+        # Check if there is any mail_mail object not sent
+        self.ensure_one()
+        if not self.pending_emails():
+            self.mass_mailing_id.state = 'done'
+            self.write({
+                'state': 'sent',
+                'date_end': fields.Datetime.now(),
+            })
+        elif self.mass_mailing_id.state not in {'sending', 'error'}:
+            self.mass_mailing_id.state = 'sending'
+
+    @api.multi
+    def _process(self):
+        self.ensure_one()
+        method = getattr(self, '_process_%s' % self.state, None)
+        if method and hasattr(method, '__call__'):
+            return method()
+        return False  # pragma: no cover
+
+    @api.model
+    def sendings_running(self):
+        return self.search([
+            ('state', 'in', ('enqueued', 'sending')),
+        ])
+
+    @api.model
+    def cron(self):
+        # Process all mail.mass_mailing.sending in enqueue or sending state
+        sendings = self.sendings_running()
+        for sending in sendings:
+            _logger.info("Sending [%d] mass mailing [%d] '%s' (%s)",
+                         sending.id, sending.mass_mailing_id.id,
+                         sending.mass_mailing_id.name, sending.state)
+            # Process sending using user who created it
+            sending = sending.sudo(user=sending.create_uid.id)
+            ctx = sending.create_uid.context_get()
+            sending.with_context(**ctx)._process()
+        return True
+
+    @api.multi
+    def _compute_pending_count(self):
+        for sending in self.filtered(lambda r: r.state == 'enqueued'):
+            sending.pending_count = len(sending.pending_recipients())
+
+    @api.multi
+    def _compute_sending_count(self):
+        m_stats = self.env['mail.mail.statistics']
+        for sending in self.filtered(
+                lambda r: r.state in {'enqueued', 'sending'}):
+            sending.sending_count = m_stats.search_count([
+                ('mass_mailing_sending_id', '=', sending.id),
+                ('scheduled', '!=', False),
+                ('sent', '=', False),
+                ('exception', '=', False),
+            ])
+
+    @api.multi
+    def _compute_sent_count(self):
+        m_stats = self.env['mail.mail.statistics']
+        for sending in self:
+            sending.sent_count = m_stats.search_count([
+                ('mass_mailing_sending_id', '=', sending.id),
+                ('scheduled', '!=', False),
+                ('sent', '!=', False),
+                ('exception', '=', False),
+            ])
+
+    @api.multi
+    def _compute_failed_count(self):
+        m_stats = self.env['mail.mail.statistics']
+        for sending in self:
+            sending.failed_count = m_stats.search_count([
+                ('mass_mailing_sending_id', '=', sending.id),
+                ('scheduled', '!=', False),
+                ('exception', '!=', False),
+            ])
--- a/mass_mailing_sending_queue/security/ir.model.access.csv
+++ b/mass_mailing_sending_queue/security/ir.model.access.csv
@ -0,0 +1,3 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_mail_mass_mailing_sending_admin,mail_mass_mailing_sending group_marketing_user,model_mail_mass_mailing_sending,base.group_user,1,1,1,0
+manage_mail_mass_mailing_sending_admin,mail_mass_mailing_sending group_system,model_mail_mass_mailing_sending,base.group_system,1,1,1,1
--- a/mass_mailing_sending_queue/static/description/icon.png
+++ b/mass_mailing_sending_queue/static/description/icon.png
--- a/mass_mailing_sending_queue/tests/init.py
+++ b/mass_mailing_sending_queue/tests/init.py
@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import test_mass_mailing_sending
--- a/mass_mailing_sending_queue/tests/test_mass_mailing_sending.py
+++ b/mass_mailing_sending_queue/tests/test_mass_mailing_sending.py
@ -0,0 +1,179 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from openerp.tests.common import TransactionCase
+from openerp.exceptions import Warning as UserError
+
+
+class TestMassMailingSending(TransactionCase):
+    def setUp(self, *args, **kwargs):
+        super(TestMassMailingSending, self).setUp(*args, **kwargs)
+
+        self.list = self.env['mail.mass_mailing.list'].create({
+            'name': 'Test list',
+        })
+        # Define a lower batch size for testing purposes
+        self.env['ir.config_parameter'].set_param(
+            'mail.mass_mailing.sending.batch_size', 5)
+        self.contact_a = self.env['mail.mass_mailing.contact'].create({
+            'list_id': self.list.id,
+            'name': 'Test contact A',
+            'email': 'contact_a@example.org',
+        })
+        self.contact_b = self.env['mail.mass_mailing.contact'].create({
+            'list_id': self.list.id,
+            'name': 'Test contact B',
+            'email': 'contact_b@example.org',
+        })
+        for i in range(1, 6):
+            self.env['mail.mass_mailing.contact'].create({
+                'list_id': self.list.id,
+                'name': 'Test contact %s' % i,
+                'email': 'contact_%s@example.org' % i,
+            })
+        self.mass_mailing = self.env['mail.mass_mailing'].create({
+            'name': 'Test mass mailing',
+            'email_from': 'from@example.org',
+            'mailing_model': 'mail.mass_mailing.contact',
+            'mailing_domain': [
+                ('list_id', 'in', [self.list.id]),
+                ('opt_out', '=', False),
+            ],
+            'contact_list_ids': [(6, False, [self.list.id])],
+            'body_html': '<p>Hello world!</p>',
+            'reply_to_mode': 'email',
+        })
+        self.partner = self.env['res.partner'].create({
+            'name': 'Test partner',
+            'email': 'partner@example.org',
+        })
+        self.mass_mailing_short = self.env['mail.mass_mailing'].create({
+            'name': 'Test mass mailing short',
+            'email_from': 'from@example.org',
+            'mailing_model': 'res.partner',
+            'mailing_domain': [
+                ('id', 'in', [self.partner.id]),
+                ('opt_out', '=', False),
+            ],
+            'body_html': '<p>Hello partner!</p>',
+            'reply_to_mode': 'email',
+        })
+
+    def test_cron_contacts(self):
+        self.mass_mailing.with_context(sending_queue_enabled=True).send_mail()
+        sendings = self.env['mail.mass_mailing.sending'].search([
+            ('mass_mailing_id', '=', self.mass_mailing.id),
+        ])
+        stats = self.env['mail.mail.statistics'].search([
+            ('mass_mailing_id', '=', self.mass_mailing.id),
+        ])
+        # Sending in 'enqueued' state and 0 email stats created
+        self.assertEqual(1, len(sendings))
+        self.assertEqual(0, len(stats))
+        sending = sendings[0]
+        self.assertEqual('enqueued', sending.state)
+        self.assertEqual(7, sending.pending_count)
+        self.assertEqual('sending', self.mass_mailing.state)
+        self.assertEqual(7, self.mass_mailing.pending_count)
+        # Create email stats
+        sending.cron()
+        stats = self.env['mail.mail.statistics'].search([
+            ('mass_mailing_id', '=', self.mass_mailing.id),
+        ])
+        self.env.invalidate_all()
+        # Sending in 'enqueued' state and 5 stats created, 2 pending, 5 sending
+        self.assertEqual(5, len(stats))
+        self.assertEqual('enqueued', sending.state)
+        self.assertEqual(2, sending.pending_count)
+        self.assertEqual(5, sending.sending_count)
+        self.assertEqual('sending', self.mass_mailing.state)
+        for stat in stats:
+            if stat.mail_mail_id:
+                stat.mail_mail_id.send()
+        self.env.invalidate_all()
+        # Check that 5 emails are already sent
+        self.assertEqual(0, sending.sending_count)
+        self.assertEqual(5, sending.sent_count)
+        sending.cron()
+        stats = self.env['mail.mail.statistics'].search([
+            ('mass_mailing_id', '=', self.mass_mailing.id),
+        ])
+        self.env.invalidate_all()
+        # Sending in 'sending' state and 7 stats created, 0 pending, 2 sending
+        self.assertEqual(7, len(stats))
+        self.assertEqual('sending', sending.state)
+        self.assertEqual(0, sending.pending_count)
+        self.assertEqual(2, sending.sending_count)
+        self.assertEqual('sending', self.mass_mailing.state)
+        for stat in stats:
+            if stat.mail_mail_id:
+                stat.mail_mail_id.send()
+        self.env.invalidate_all()
+        # Check that 7 emails are already sent
+        self.assertEqual('sent', sending.state)
+        self.assertEqual(0, sending.sending_count)
+        self.assertEqual(7, sending.sent_count)
+        self.assertEqual(0, sending.failed_count)
+        self.assertEqual('done', self.mass_mailing.state)
+
+    def test_cron_partners(self):
+        self.mass_mailing_short.with_context(
+            sending_queue_enabled=True).send_mail()
+        sendings = self.env['mail.mass_mailing.sending'].search([
+            ('mass_mailing_id', '=', self.mass_mailing_short.id),
+        ])
+        stats = self.env['mail.mail.statistics'].search([
+            ('mass_mailing_id', '=', self.mass_mailing_short.id),
+        ])
+        # Sending in 'draft' state and 1 email stats created
+        self.assertEqual(1, len(sendings))
+        self.assertEqual(1, len(stats))
+        sending = sendings[0]
+        self.assertEqual('sending', sending.state)
+        self.assertEqual(0, sending.pending_count)
+        self.assertEqual('sending', self.mass_mailing_short.state)
+        self.assertEqual(1, self.mass_mailing_short.pending_count)
+        for stat in stats:
+            if stat.mail_mail_id:
+                stat.mail_mail_id.send()
+        self.env.invalidate_all()
+        # Check that 1 email are already sent
+        self.assertEqual('sent', sending.state)
+        self.assertEqual(0, sending.sending_count)
+        self.assertEqual(1, sending.sent_count)
+        self.assertEqual(0, sending.failed_count)
+        self.assertEqual('done', self.mass_mailing_short.state)
+
+    def test_concurrent(self):
+        self.mass_mailing.with_context(sending_queue_enabled=True).send_mail()
+        with self.assertRaises(UserError):
+            self.mass_mailing.with_context(
+                sending_queue_enabled=True).send_mail()
+
+    def test_read_group(self):
+        groups = self.env['mail.mass_mailing'].read_group(
+            [('sent_date', '<', '1900-12-31')], ['state', 'name'], ['state'])
+        self.assertTrue([
+            x for x in groups if (
+                x['state_count'] == 0 and x['state'][0] == 'sending')
+        ])
+
+    def test_no_recipients(self):
+        empty_list = self.env['mail.mass_mailing.list'].create({
+            'name': 'Test list with no recipients',
+        })
+        mass_mailing = self.env['mail.mass_mailing'].create({
+            'name': 'Test mass mailing with no recipients',
+            'email_from': 'from@example.org',
+            'mailing_model': 'mail.mass_mailing.contact',
+            'mailing_domain': [
+                ('list_id', 'in', [empty_list.id]),
+                ('opt_out', '=', False),
+            ],
+            'contact_list_ids': [(6, False, [empty_list.id])],
+            'body_html': '<p>Hello no one!</p>',
+            'reply_to_mode': 'email',
+        })
+        with self.assertRaises(UserError):
+            mass_mailing.send_mail()
--- a/mass_mailing_sending_queue/views/mass_mailing_sending_view.xml
+++ b/mass_mailing_sending_queue/views/mass_mailing_sending_view.xml
@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+
+<openerp>
+<data>
+
+<record model="ir.ui.view" id="view_mail_mass_mailing_sending_tree">
+    <field name="name">mail.mass_mailing.sending.tree</field>
+    <field name="model">mail.mass_mailing.sending</field>
+    <field name="arch" type="xml">
+        <tree string="Mass mailing sendings">
+            <field name="mass_mailing_id"/>
+            <field name="date_start"/>
+            <field name="state"/>
+            <field name="pending_count"/>
+            <field name="sending_count"/>
+            <field name="sent_count"/>
+            <field name="failed_count"/>
+        </tree>
+    </field>
+</record>
+
+<record model="ir.ui.view" id="view_mail_mass_mailing_sending_form">
+    <field name="name">mail.mass_mailing.sending.form</field>
+    <field name="model">mail.mass_mailing.sending</field>
+    <field name="arch" type="xml">
+        <form string="Mass mailing sending">
+            <group>
+                <group>
+                    <field name="mass_mailing_id"/>
+                    <field name="state"/>
+                    <field name="date_start"/>
+                    <field name="date_end"/>
+                </group>
+                <group>
+                    <field name="pending_count"/>
+                    <field name="sending_count"/>
+                    <field name="sent_count"/>
+                    <field name="failed_count"/>
+                </group>
+            </group>
+            <group attrs="{'invisible': [('error', '=', False)]}">
+                <field name="error"/>
+            </group>
+        </form>
+    </field>
+</record>
+
+<record model="ir.ui.view" id="view_mail_mass_mailing_sending_search">
+    <field name="name">mail.mass_mailing.sending.search</field>
+    <field name="model">mail.mass_mailing.sending</field>
+    <field name="arch" type="xml">
+       <search string="Mass mailing sending">
+            <field name="mass_mailing_id"/>
+            <filter string="Enqueued" name="enqueued" domain="[('state', '=', 'enqueued')]"/>
+            <filter string="Sending" name="sending" domain="[('state', '=', 'sending')]"/>
+            <filter string="Running" name="running" domain="[('state', '!=', 'sent')]"/>
+            <filter string="Sent" name="sent" domain="[('state', '=' ,'sent')]"/>
+            <group expand="0" string="Group By">
+                <filter string="Mass mailing" name="group_mass_mailing" context="{'group_by': 'mass_mailing_id'}"/>
+            </group>
+        </search>
+    </field>
+</record>
+
+<record id="action_view_mail_mass_mailing_sending" model="ir.actions.act_window">
+    <field name="name">Mass mailing sendings</field>
+    <field name="res_model">mail.mass_mailing.sending</field>
+    <field name="view_type">form</field>
+    <field name="view_mode">tree,form</field>
+    <field name="context">{'search_default_running': 1}</field>
+    <field name="search_view_id" ref="view_mail_mass_mailing_sending_search"/>
+</record>
+
+<menuitem name="Mass mailing sending" id="menu_mass_mailing_sending"
+    parent="base.menu_email" sequence="60"
+    action="action_view_mail_mass_mailing_sending"/>
+
+</data>
+</openerp>
--- a/mass_mailing_sending_queue/views/mass_mailing_view.xml
+++ b/mass_mailing_sending_queue/views/mass_mailing_view.xml
@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2016 Antonio Espinosa <antonio.espinosa@tecnativa.com>
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+
+<openerp>
+<data>
+
+<record model="ir.ui.view" id="view_mail_mass_mailing_form">
+    <field name="name">Add pending emails to be sent</field>
+    <field name="model">mail.mass_mailing</field>
+    <field name="inherit_id" ref="mass_mailing.view_mail_mass_mailing_form"/>
+    <field name="arch" type="xml">
+        <xpath expr="//button[@name='send_mail'][1]" position="attributes">
+            <attribute name="attrs">{'invisible': ['|', ('state', 'in', ('done', 'sending')), ('body_html', '=', False)]}</attribute>
+            <attribute name="context">{'sending_queue_enabled': True}</attribute>
+        </xpath>
+        <xpath expr="//button[@name='send_mail'][2]" position="attributes">
+            <attribute name="attrs">{'invisible': ['|', ('state', 'not in', ('done', )), ('body_html', '=', False)]}</attribute>
+            <attribute name="context">{'sending_queue_enabled': True}</attribute>
+        </xpath>
+        <xpath expr="div[@class='oe_form_box_info oe_text_center']" position="attributes">
+            <attribute name="attrs">{'invisible': [('pending_count', '=', 0)]}</attribute>
+        </xpath>
+        <field name="scheduled" position="attributes">
+            <attribute name="invisible">1</attribute>
+        </field>
+        <field name="scheduled" position="after">
+            <field name="pending_count" class="oe_inline"/>
+        </field>
+        <notebook position="inside">
+            <page string="Sending tasks">
+                <field name="mass_mailing_sending_ids" nolabel="1">
+                    <tree string="Sending tasks">
+                        <field name="date_start"/>
+                        <field name="state"/>
+                        <field name="pending_count"/>
+                        <field name="sending_count"/>
+                        <field name="sent_count"/>
+                        <field name="failed_count"/>
+                    </tree>
+                </field>
+            </page>
+        </notebook>
+    </field>
+</record>
+
+</data>
+</openerp>