diff --git a/addons/website_forum/models/forum.py b/addons/website_forum/models/forum.py
index 2c1c2ab9919..6c517ce3a44 100644
--- a/addons/website_forum/models/forum.py
+++ b/addons/website_forum/models/forum.py
@@ -210,15 +210,13 @@ class Post(models.Model):
     uid_has_answered = fields.Boolean('Has Answered', compute='_get_uid_has_answered')
     has_validated_answer = fields.Boolean('Is answered', compute='_get_has_validated_answer', store=True)
 
-    @api.multi
+    @api.one
     @api.depends('create_uid', 'parent_id')
     def _is_self_reply(self):
-        self_replies = self.search([('parent_id.create_uid', '=', self._uid)])
-        for post in self:
-            post.is_self_reply = post in self_replies
+        self.self_reply = self.parent_id.create_uid.id == self._uid
 
     @api.one
-    @api.depends('child_ids', 'website_message_ids')
+    @api.depends('child_ids.create_uid', 'website_message_ids')
     def _get_child_count(self):
         def process(node):
             total = len(node.website_message_ids) + len(node.child_ids)
@@ -231,12 +229,10 @@ class Post(models.Model):
     def _get_uid_has_answered(self):
         self.uid_has_answered = any(answer.create_uid.id == self._uid for answer in self.child_ids)
 
-    @api.multi
-    @api.depends('child_ids', 'is_correct')
+    @api.one
+    @api.depends('child_ids.is_correct')
     def _get_has_validated_answer(self):
-        correct_posts = [ans.parent_id for ans in self.search([('parent_id', 'in', self._ids), ('is_correct', '=', True)])]
-        for post in self:
-            post.is_correct = post in correct_posts
+        self.has_validated_answer = any(answer.is_correct for answer in self.child_ids)
 
     # closing
     closed_reason_id = fields.Many2one('forum.post.reason', string='Reason')
diff --git a/addons/website_forum/views/forum.xml b/addons/website_forum/views/forum.xml
index 2c6f037b27d..421d76e37e2 100644
--- a/addons/website_forum/views/forum.xml
+++ b/addons/website_forum/views/forum.xml
@@ -167,6 +167,11 @@
                     <field name="name" string="Content" filter_domain="['|', ('name', 'ilike', self), ('content', 'ilike', self)]"/>
                     <field name="create_uid"/>
                     <field name="forum_id"/>
+                    <field name="tag_ids" string="Tag"/>
+                    <filter string="Question" domain="[('parent_id', '=', False)]" />
+                    <filter string="Answers" domain="[('parent_id', '!=', False)]" />
+                    <filter string="Accepted Answer" domain="[('is_correct' , '!=', False), ('parent_id', '!=', False)]" />
+                    <filter string="Answered Questions" domain="[('child_count', '!=', 0), ('parent_id', '=', False)]" />
                     <group expand="0" string="Group By">
                         <filter string="Forum" domain="[]" context="{'group_by': 'forum_id'}"/>
                         <filter string="Author" domain="[]" context="{'group_by': 'create_uid'}"/>
@@ -175,11 +180,22 @@
             </field>
         </record>
 
+        <record model="ir.ui.view" id="view_forum_post_graph">
+            <field name="name">forum.post.graph</field>
+            <field name="model">forum.post</field>
+            <field name="arch" type="xml">
+                <graph string="Graph of Posts" type="pivot">
+                    <field name="write_date" interval="month" type="col" />
+                    <field name="forum_id" type="row" />
+                </graph>
+            </field>
+        </record>
+
         <record id="action_forum_post" model="ir.actions.act_window">
             <field name="name">Forum Posts</field>
             <field name="res_model">forum.post</field>
             <field name="view_type">form</field>
-            <field name="view_mode">tree,form</field>
+            <field name="view_mode">tree,form,graph</field>
             <field name="view_id" ref="view_forum_post_list"/>
             <field name="search_view_id" ref="view_forum_post_search"/>
         </record>