upload mass_mailing_extra

__init__.py

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+import models

__openerp__.py

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+{
+    'name' : 'Improvements for mass mailing',
+    'version' : '1.0.0',
+    'author' : 'Ivan Yelizariev',
+    'category' : 'Mail',
+    'website' : 'https://it-projects.info',
+    'description': """
+Modules adds:
+
+* partners info in mail.mail.statistics tree
+* partners info in mail.mail.statistics form
+
+Tested on 8.0 f8d5a6727d3e8d428d9bef93da7ba6b11f344284
+    """,
+    'depends' : ['mass_mailing'],
+    'data':[
+        'views.xml',
+        ],
+    'installable': True
+}

models.py

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+from openerp import api,models,fields
+
+class MailMailStats(models.Model):
+
+    _inherit = 'mail.mail.statistics'
+
+    partner_ids = fields.Many2many('res.partner', related='mail_mail_id.recipient_ids', string='Partners')
+
+    @api.one
+    def _get_partner_ids_text(self):
+        res = []
+        for p in self.partner_ids:
+            res.append('%s <%s>' % (p.name, p.email))
+        self.partner_ids_text = ', '.join(res)
+
+    partner_ids_text = fields.Char('Partners', compute=_get_partner_ids_text)

views.xml

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+<?xml version="1.0"?>
+<openerp>
+    <data>
+
+        <record model="ir.ui.view" id="view_mail_mail_statistics_form">
+            <field name="name">mail.mail.statistics.form</field>
+            <field name="model">mail.mail.statistics</field>
+			<field name="inherit_id" ref="mass_mailing.view_mail_mail_statistics_form"/>
+            <field name="arch" type="xml">
+				<xpath expr="//form" position="inside">
+					<notebook>
+						<page string="Partners">
+							<field name="partner_ids" readonly="1"/>
+						</page>
+					</notebook>
+				</xpath>
+			</field>
+		</record>
+
+        <record model="ir.ui.view" id="view_mail_mail_statistics_tree">
+            <field name="name">mail.mail.statistics.tree</field>
+            <field name="model">mail.mail.statistics</field>
+			<field name="inherit_id" ref="mass_mailing.view_mail_mail_statistics_tree"/>
+            <field name="arch" type="xml">
+				<xpath expr="//field[@name='mail_mail_id_int']" position="before">
+					<field name="partner_ids_text"/>
+				</xpath>
+            </field>
+        </record>
+
+	</data>
+</openerp>