From 2833d87dfb7996400feaadbd8aaba06a8be7c22f Mon Sep 17 00:00:00 2001
From: Jeremy Kersten <jke@odoo.com>
Date: Mon, 2 Feb 2015 14:14:35 +0100
Subject: [PATCH] [FIX] blog: don't rewrite old uniq name and clean comment(s)
 linked to a deleted path

---
 addons/website_blog/models/website_blog.py | 42 ++++++++++++++--------
 1 file changed, 27 insertions(+), 15 deletions(-)

diff --git a/addons/website_blog/models/website_blog.py b/addons/website_blog/models/website_blog.py
index 8cea7eb0d68..e1f0803c387 100644
--- a/addons/website_blog/models/website_blog.py
+++ b/addons/website_blog/models/website_blog.py
@@ -141,6 +141,8 @@ class BlogPost(osv.Model):
         :return result: (html, mappin), where html is the updated html with ID
                         and mapping is a list of (old_ID, new_ID), where old_ID
                         is None is the paragraph is a new one. """
+
+        existing_attributes = []
         mapping = []
         if not html:
             return html, mapping
@@ -148,7 +150,6 @@ class BlogPost(osv.Model):
             tags = ['p']
         if attribute is None:
             attribute = 'data-unique-id'
-        counter = 0
 
         # form a tree
         root = lxml.html.fragment_fromstring(html, create_parent='div')
@@ -159,17 +160,22 @@ class BlogPost(osv.Model):
         # - img src -> check URL
         # - a href -> check URL
         for node in root.iter():
-            if not node.tag in tags:
+            if node.tag not in tags:
                 continue
             ancestor_tags = [parent.tag for parent in node.iterancestors()]
-            if ancestor_tags:
-                ancestor_tags.pop()
-            ancestor_tags.append('counter_%s' % counter)
-            new_attribute = '/'.join(reversed(ancestor_tags))
+
             old_attribute = node.get(attribute)
-            node.set(attribute, new_attribute)
-            mapping.append((old_attribute, counter))
-            counter += 1
+            new_attribute = old_attribute
+            if old_attribute in existing_attributes:
+                if ancestor_tags:
+                    ancestor_tags.pop()
+                counter = random.randint(10000, 99999)
+                ancestor_tags.append('counter_%s' % counter)
+                new_attribute = '/'.join(reversed(ancestor_tags))
+                node.set(attribute, new_attribute)
+
+            existing_attributes.append(new_attribute)
+            mapping.append((old_attribute, new_attribute))
 
         html = lxml.html.tostring(root, pretty_print=False, method='html')
         # this is ugly, but lxml/etree tostring want to put everything in a 'div' that breaks the editor -> remove that
@@ -182,12 +188,17 @@ class BlogPost(osv.Model):
             content = self.browse(cr, uid, id, context=context).content
         if content is False:
             return content
+
         content, mapping = self.html_tag_nodes(content, attribute='data-chatter-id', tags=['p'], context=context)
-        for old_attribute, new_attribute in mapping:
-            if not old_attribute:
-                continue
-            msg_ids = self.pool['mail.message'].search(cr, SUPERUSER_ID, [('path', '=', old_attribute)], context=context)
-            self.pool['mail.message'].write(cr, SUPERUSER_ID, msg_ids, {'path': new_attribute}, context=context)
+        if id:  # not creating
+            existing = [x[0] for x in mapping if x[0]]
+            msg_ids = self.pool['mail.message'].search(cr, SUPERUSER_ID, [
+                ('res_id', '=', id),
+                ('model', '=', self._name),
+                '|', ('path', 'not in', existing), ('path', '=', False)
+            ], context=context)
+            self.pool['mail.message'].unlink(cr, SUPERUSER_ID, msg_ids, context=context)
+
         return content
 
     def create_history(self, cr, uid, ids, vals, context=None):
@@ -232,12 +243,13 @@ class BlogPost(osv.Model):
 
     def write(self, cr, uid, ids, vals, context=None):
         if 'content' in vals:
-            vals['content'] = self._postproces_content(cr, uid, None, vals['content'], context=context)
+            vals['content'] = self._postproces_content(cr, uid, ids[0], vals['content'], context=context)
         result = super(BlogPost, self).write(cr, uid, ids, vals, context)
         self.create_history(cr, uid, ids, vals, context)
         self._check_for_publication(cr, uid, ids, vals, context=context)
         return result
 
+
 class BlogPostHistory(osv.Model):
     _name = "blog.post.history"
     _description = "Blog Post History"