upload mail_delete_odoo_footer

__init__.py

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+import mail_delete_odoo_footer_models

__openerp__.py

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+{
+    'name' : 'Delete "Sent by..." footer',
+    'version' : '1.0.0',
+    'author' : 'Ivan Yelizariev',
+    'category' : 'Sale',
+    'website' : 'https://it-projects.info',
+    'description': """
+
+Tested on 8.0 ab7b5d7
+    """,
+    'depends' : ['mail'],
+    'data':[
+        ],
+    'installable': True
+}

mail_delete_odoo_footer_models.py

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+from openerp.osv import osv
+from openerp import tools, SUPERUSER_ID
+
+class mail_mail(osv.Model):
+    _inherit = 'mail.mail'
+
+    def _get_partner_access_link(self, cr, uid, mail, partner=None, context=None):
+        return None
+
+class mail_notification(osv.Model):
+    _inherit = 'mail.notification'
+
+    def get_signature_footer(self, cr, uid, user_id, res_model=None, res_id=None, context=None, user_signature=True):
+        footer = ""
+        if not user_id:
+            return footer
+
+        # add user signature
+        user = self.pool.get("res.users").browse(cr, SUPERUSER_ID, [user_id], context=context)[0]
+        if user_signature:
+            if user.signature:
+                signature = user.signature
+            else:
+                signature = "--<br />%s" % user.name
+            footer = tools.append_content_to_html(footer, signature, plaintext=False)
+
+        return footer