[document_page_approval] Allow to quickly cancel&draft from 'to approve' state

document_page_approval/models/document_page_history.py

@@ -139,6 +139,12 @@ class DocumentPageHistory(models.Model):
                     ) % (rec.display_name, self.env.user.name)
                 )
 
+    @api.multi
+    def action_cancel_and_draft(self):
+        """Set a change request as draft, cancelling it first"""
+        self.action_cancel()
+        self.action_draft()
+
     @api.multi
     def _compute_am_i_owner(self):
         """Check if current user is the owner"""