[ADD]Add report PDF attachement to invoice

report/account_report.xml

@@ -26,6 +26,7 @@
 <!--            <field name="report_type">qweb-html</field>-->
             <field name="report_name">acc_account.report_account</field>
             <field name="report_file">account.report_account</field>
+            <field name="attachment">(object.name).replace('/','_')+'.pdf'</field>
             <field name="print_report_name">'Facture - %s' % (object.name)</field>
             <field name="binding_model_id" ref="model_acc_account" />
             <field name="binding_type">report</field>
@@ -39,6 +40,7 @@
 <!--            <field name="report_type">qweb-html</field>-->
             <field name="report_name">acc_account.report_account_old</field>
             <field name="report_file">account.report_account_old</field>
+            <field name="attachment">(object.name).replace('/','_')+'.pdf'</field>
             <field name="print_report_name">'Facture - %s' % (object.name)</field>
             <field name="binding_model_id" ref="model_acc_account" />
             <field name="binding_type">report</field>

views/acc_account_views.xml

@@ -363,6 +363,10 @@
                     </sheet>
                     <!-- Attachment preview -->
                     <div class="o_attachment_preview" />
+                    <div class="oe_chatter">
+                        <field name="message_follower_ids" />
+                        <field name="message_ids" />
+                    </div>
                 </form>
             </field>
         </record>