1. Create two Smart buttons (Income and Sent)

2. Calculate income and sent messages and output values on Smart buttons
TODO: Create actions when click Smart buttons

res_partner_mails_count/__init__.py

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+# -*- coding: utf-8 -*-
+import controllers
+import models

res_partner_mails_count/__openerp__.py

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+# -*- coding: utf-8 -*-
+{
+    'name': "res_partner_mails_count",
+
+    'summary': """
+        Short (1 phrase/line) summary of the module's purpose, used as
+        subtitle on modules listing or apps.openerp.com""",
+
+    'description': """
+        Long description of module's purpose
+    """,
+
+    'author': "Your Company",
+    'website': "http://www.yourcompany.com",
+
+    # Categories can be used to filter modules in modules listing
+    # Check https://github.com/odoo/odoo/blob/master/openerp/addons/base/module/module_data.xml
+    # for the full list
+    'category': 'Uncategorized',
+    'version': '0.1',
+
+    # any module necessary for this one to work correctly
+    'depends': ['base'],
+
+    # always loaded
+    'data': [
+        # 'security/ir.model.access.csv',
+        'templates.xml',
+    ],
+    # only loaded in demonstration mode
+    'demo': [
+        'demo.xml',
+    ],
+}

res_partner_mails_count/controllers.py

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+# -*- coding: utf-8 -*-
+from openerp import http
+
+# class ResPartnerMailsCount(http.Controller):
+#     @http.route('/res_partner_mails_count/res_partner_mails_count/', auth='public')
+#     def index(self, **kw):
+#         return "Hello, world"
+
+#     @http.route('/res_partner_mails_count/res_partner_mails_count/objects/', auth='public')
+#     def list(self, **kw):
+#         return http.request.render('res_partner_mails_count.listing', {
+#             'root': '/res_partner_mails_count/res_partner_mails_count',
+#             'objects': http.request.env['res_partner_mails_count.res_partner_mails_count'].search([]),
+#         })
+
+#     @http.route('/res_partner_mails_count/res_partner_mails_count/objects/<model("res_partner_mails_count.res_partner_mails_count"):obj>/', auth='public')
+#     def object(self, obj, **kw):
+#         return http.request.render('res_partner_mails_count.object', {
+#             'object': obj
+#         })

res_partner_mails_count/demo.xml

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+<openerp>
+    <data>
+        <!--  -->
+        <!--   <record id="object0" model="res_partner_mails_count.res_partner_mails_count"> -->
+        <!--     <field name="name">Object 0</field> -->
+        <!--   </record> -->
+        <!--  -->
+        <!--   <record id="object1" model="res_partner_mails_count.res_partner_mails_count"> -->
+        <!--     <field name="name">Object 1</field> -->
+        <!--   </record> -->
+        <!--  -->
+        <!--   <record id="object2" model="res_partner_mails_count.res_partner_mails_count"> -->
+        <!--     <field name="name">Object 2</field> -->
+        <!--   </record> -->
+        <!--  -->
+        <!--   <record id="object3" model="res_partner_mails_count.res_partner_mails_count"> -->
+        <!--     <field name="name">Object 3</field> -->
+        <!--   </record> -->
+        <!--  -->
+        <!--   <record id="object4" model="res_partner_mails_count.res_partner_mails_count"> -->
+        <!--     <field name="name">Object 4</field> -->
+        <!--   </record> -->
+        <!--  -->
+    </data>
+</openerp>

res_partner_mails_count/models.py

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+# -*- coding: utf-8 -*-
+
+from openerp import models, fields, api
+
+import logging
+
+
+def getlogger(name):
+    filename = 'test.log'
+    logger = logging.getLogger(name)
+    handler = logging.FileHandler(filename)
+    formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(name)s: %(message)s')
+
+    handler.setFormatter(formatter)
+    logger.addHandler(handler)
+    logger.setLevel(logging.DEBUG)
+
+    return logger
+
+logger = getlogger(__name__)
+
+
+class res_partner(models.Model):
+    _inherit = 'res.partner'
+    income = fields.Integer(compute="_income")
+    sent = fields.Integer(compute="_sent")
+
+    def _search_partner(self):
+        return self.env['res.partner'].search([('user_ids', '=', self._uid)])
+
+    def _search_letters(self, partner, param):
+        letters = self.env['mail.message'].search([(param, '=', partner.id)])
+        # logger.debug('partner.id: %s' % partner.id)
+        # logger.debug('Income letters: %s' % letters)
+        return letters
+
+    @api.multi
+    def _income(self):
+        partner = self._search_partner()
+        if partner:
+            letters = self._search_letters(partner, 'partner_ids')
+            partner.income = len(letters)
+
+    @api.multi
+    def _sent(self):
+        partner = self._search_partner()
+        if partner:
+            letters = self._search_letters(partner, 'author_id')
+            partner.sent = len(letters)
+

res_partner_mails_count/security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_res_partner_mails_count_res_partner_mails_count,res_partner_mails_count.res_partner_mails_count,model_res_partner_mails_count_res_partner_mails_count,,1,0,0,0

res_partner_mails_count/templates.xml

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+<?xml version="1.0"?>
+<openerp>
+    <data>
+        <record id="view_task_partner_info_form1" model="ir.ui.view">
+            <field name="name">res.partner.mails.count.income</field>
+            <field name="model">res.partner</field>
+            <field name="inherit_id" ref="base.view_partner_form"/>
+            <field name="priority" eval="50"/>
+            <field name="groups_id" eval="[(4, ref('project.group_project_user'))]"/>
+            <field name="arch" type="xml">
+                <xpath expr="//div[@name='buttons']" position="inside">
+                    <button class="oe_inline oe_stat_button" type="action" name="test"
+                        context="{'search_default_partner_id': active_id, 'default_partner_id': active_id}"
+                        icon="fa-envelope">
+                        <field  string="Income" name="income" widget="statinfo"/>
+                    </button>
+                </xpath>
+            </field>
+        </record>
+	    <record id="view_task_partner_info_form2" model="ir.ui.view">
+            <field name="name">res.partner.mails.count.sent</field>
+            <field name="model">res.partner</field>
+            <field name="inherit_id" ref="base.view_partner_form"/>
+            <field name="priority" eval="50"/>
+            <field name="groups_id" eval="[(4, ref('project.group_project_user'))]"/>
+            <field name="arch" type="xml">
+                <xpath expr="//div[@name='buttons']" position="inside">
+                    <button class="oe_inline oe_stat_button" type="action" name="test"
+                        context="{'search_default_partner_id': active_id, 'default_partner_id': active_id}"
+                        icon="fa-envelope-o">
+                        <field  string="Sent" name="sent" widget="statinfo"/>
+                    </button>
+                </xpath>
+            </field>
+        </record>
+
+
+	    <!--<record id="res_partner_mails_count" model="ir.actions.client">-->
+            <!--<field name="name">Income</field>-->
+            <!--<field name="tag">mail.wall</field>-->
+            <!--<field name="context">{-->
+              <!--'default_model': 'res.users',-->
+              <!--'default_res_id': uid,-->
+              <!--'thread_model': 'res.partner',-->
+              <!--'needaction_menu_ref': ['mail.mail_tomefeeds', 'mail.mail_starfeeds', 'mail.mail_inboxfeeds']-->
+            <!--}</field>-->
+            <!--<field name="params" eval="&quot;{-->
+                <!--'domain': [-->
+                    <!--'|',-->
+                    <!--('notification_ids.partner_id.user_ids', 'in', [uid]),-->
+                    <!--('author_id.user_ids', 'in', [uid]),-->
+                <!--],-->
+                <!--'view_mailbox': True,-->
+                <!--'show_compose_message': False-->
+            <!--}&quot;"/>-->
+            <!--<field name="help" type="html">-->
+                <!--<p>-->
+                    <!--No message found and no message sent yet.-->
+                <!--</p>-->
+	            <!--<p>-->
+                    <!--Click on the top-right icon to compose a message. This-->
+                    <!--message will be sent by email if it's an internal contact.-->
+                <!--</p>-->
+            <!--</field>-->
+        <!--</record>-->
+
+
+        <!-- <template id="listing"> -->
+        <!--   <ul> -->
+        <!--     <li t-foreach="objects" t-as="object"> -->
+        <!--       <a t-attf-href="#{ root }/objects/#{ object.id }"> -->
+        <!--         <t t-esc="object.display_name"/> -->
+        <!--       </a> -->
+        <!--     </li> -->
+        <!--   </ul> -->
+        <!-- </template> -->
+        <!-- <template id="object"> -->
+        <!--   <h1><t t-esc="object.display_name"/></h1> -->
+        <!--   <dl> -->
+        <!--     <t t-foreach="object._fields" t-as="field"> -->
+        <!--       <dt><t t-esc="field"/></dt> -->
+        <!--       <dd><t t-esc="object[field]"/></dd> -->
+        <!--     </t> -->
+        <!--   </dl> -->
+        <!-- </template> -->
+    </data>
+</openerp>