[IMP] rating : add generic star widget

- star widget and rating card to post and display rating
- Linked rating.rating to mail.message
- method to extract more statistics about the rating of an object.

5 files changed, 338 insertions, 13 deletions

diff --git a/addons/rating/models/rating.py b/addons/rating/models/rating.py
index 44d446b4b0c..7a21a2ea77d 100644
--- a/addons/rating/models/rating.py
+++ b/addons/rating/models/rating.py
@@ -31,6 +31,8 @@ class Rating(models.Model):
     feedback = fields.Text('Feedback reason', help="Reason of the rating")
     access_token = fields.Char(string='Security Token', default=new_access_token, help="Access token to set the rating of the value")
 
+    message_id = fields.Many2one('mail.message', string="Linked message", help="Associated message when posting a review. Mainly used in website addons.", index=True)
+
     @api.model
     def apply_rating(self, rate, res_model=None, res_id=None, token=None):
         """ apply a rating for given res_model/res_id or token. If the res_model is a mail.thread
@@ -100,10 +102,10 @@ class RatingMixin(models.AbstractModel):
         for record in self:
             res_id = record.id
             values = {
-                'res_model' : res_model,
-                'res_id' : res_id,
-                'partner_id' : partner_id.id,
-                'rated_partner_id' : rated_partner_id.id
+                'res_model': res_model,
+                'res_id': res_id,
+                'partner_id': partner_id.id,
+                'rated_partner_id': rated_partner_id.id
             }
             if reuse_rating:
                 # search the existing rating for the given res_model/res_id
@@ -118,25 +120,46 @@ class RatingMixin(models.AbstractModel):
             template.send_mail(rating.id, force_send=True)
 
     @api.multi
-    def rating_get_stats(self):
+    def rating_get_repartition(self, add_stats=False, domain=None):
         """ get the repatition of rating grade for the given res_ids.
-            :return dictionnary where the key is the rating value (the note), and the value, the number of object (res_model, res_id) having the value
+            :param add_stats : flag to add stat to the result
+            :type add_stats : boolean
+            :param domain : optional extra domain of the rating to include/exclude in repartition
+            :return dictionnary
+                if not add_stats, the dict is like
+                    - key is the rating value (integer)
+                    - value is the number of object (res_model, res_id) having the value
+                otherwise, key is the value of the information (string) : either stat name (avg, total, ...) or 'repartition'
+                containing the same dict if add_stats was False.
         """
-        data = self.env['rating.rating'].read_group([('res_model', '=', self._name), ('res_id', 'in', self.ids), ('rating', '>=', 0)], ['rating'], ['rating', 'res_id'])
+        base_domain = [('res_model', '=', self._name), ('res_id', 'in', self.ids), ('rating', '>=', 0)]
+        if domain:
+            base_domain += domain
+        data = self.env['rating.rating'].read_group(base_domain, ['rating'], ['rating', 'res_id'])
         # init dict with all posible rate value, except -1 (no value for the rating)
-        res = dict.fromkeys(range(11), 0)
-        res.update((d['rating'], d['rating_count']) for d in data)
-        return res
+        values = dict.fromkeys(range(11), 0)
+        values.update((d['rating'], d['rating_count']) for d in data)
+        # add other stats
+        if add_stats:
+            rating_number = sum(values.values())
+            result = {
+                'repartition': values,
+                'avg': sum([float(key*values[key]) for key in values])/rating_number if rating_number > 0 else 0,
+                'total': reduce(lambda x, y: y['rating_count']+x, data, 0),
+            }
+            return result
+        return values
 
     @api.multi
-    def rating_get_grades(self):
+    def rating_get_grades(self, domain=None):
         """ get the repatition of rating grade for the given res_ids.
+            :param domain : optional domain of the rating to include/exclude in grades computation
             :return dictionnary where the key is the grade (great, okay, bad), and the value, the number of object (res_model, res_id) having the grade
                     the grade are compute as    0-30% : Bad
                                                 31-69%: Okay
                                                 70-100%: Great
         """
-        data = self.rating_get_stats()
+        data = self.rating_get_repartition(domain=domain)
         res = dict.fromkeys(['great', 'okay', 'bad'], 0)
         for key in data:
             if key >= 7:
@@ -146,3 +169,22 @@ class RatingMixin(models.AbstractModel):
             else:
                 res['bad'] += data[key]
         return res
+
+    @api.multi
+    def rating_get_stats(self, domain=None):
+        """ get the statistics of the rating repatition
+            :param domain : optional domain of the rating to include/exclude in statistic computation
+            :return dictionnary where
+                - key is the the name of the information (stat name)
+                - value is statistic value : 'percent' contains the repartition in percentage, 'avg' is the average rate
+                  and 'total' is the number of rating
+        """
+        data = self.rating_get_repartition(domain=domain, add_stats=True)
+        result = {
+            'avg': data['avg'],
+            'total': data['total'],
+            'percent': dict.fromkeys(range(11), 0),
+        }
+        for rate in data['repartition']:
+            result['percent'][rate] = (data['repartition'][rate] * 100) / data['total'] if data['total'] > 0 else 0
+        return result
diff --git a/addons/rating/static/src/css/rating_common.css b/addons/rating/static/src/css/rating_common.css
new file mode 100644
index 00000000000..ff84353a8eb
--- /dev/null
+++ b/addons/rating/static/src/css/rating_common.css
@@ -0,0 +1,48 @@
+/* Star Widget */
+.o_rating_star_card{
+    margin-bottom: 5px;
+}
+
+.o_rating_star_card .stars {
+    display: inline-block;
+    color: #FACC2E;
+    margin-right: 15px;
+}
+
+.o_rating_star_card .stars i {
+    margin-right: -3px;
+    text-align: center;
+}
+
+.o_rating_star_card .stars.enabled{
+    cursor: pointer;
+}
+
+.o_rating_star_card .rate_text{
+    display: inline-block;
+}
+
+
+/* Rating Card */
+.o_rating_card .progress {
+    position: relative;
+    height: 25px;
+    margin-bottom: 3px;
+}
+.o_rating_card .progress-bar {
+    background-color: #FACC2E;
+}
+.o_rating_card .progress > .progress_type {
+    position: absolute;
+    left: 0px;
+    font-weight: 800;
+    padding: 3px 10px 2px 10px;
+    color: rgb(120, 100, 100);
+    width: 100%;
+}
+.o_rating_card .progress > .progress_completed {
+    position: absolute;
+    right: 0px;
+    font-weight: 800;
+    padding: 3px 10px 2px;
+}
\ No newline at end of file
diff --git a/addons/rating/static/src/js/rating_common.js b/addons/rating/static/src/js/rating_common.js
new file mode 100644
index 00000000000..67994e72695
--- /dev/null
+++ b/addons/rating/static/src/js/rating_common.js
@@ -0,0 +1,127 @@
+odoo.define('rating.rating', function (require) {
+    "use strict";
+
+    var Widget = require('web.Widget');
+    var translation = require('web.translation');
+    var _t = translation._t;
+
+    // Star Widget
+    var RatingStarWidget = Widget.extend({
+        template: 'rating.rating_star_card',
+        events: {
+            "mousemove .stars i" : "moveOnStars",
+            "mouseleave .stars i" : "moveOut",
+            "click .stars" : "clickOnStar",
+            "mouseleave .stars" : "moveOutStars",
+        },
+        init: function(parent, options){
+            this._super.apply(this, arguments);
+            this.options = _.defaults(options || {}, {
+                'rating_default_value': 0,
+                'rating_disabled': 0,
+            });
+            this.labels = {
+                '0': "",
+                '1': _t("I hate it"),
+                '2': _t("I don't like it"),
+                '3': _t("It's okay"),
+                '4': _t("I like it"),
+                '5': _t("I love it"),
+            };
+            this.user_click = false; // user has click or not
+            this.set("star_value", 0);
+            this.on("change:star_value", this, this.changeStars);
+        },
+        start: function(){
+            this.$input = this.$('input');
+            this.star_list = this.$('.stars').find('i');
+            // set the default value
+            this.set("star_value", this.options.rating_default_value);
+            this.is_editable = !this.options.rating_disabled;
+        },
+        attachTo: function(el){
+            this._super.apply(this, arguments);
+            // set the default value and bind event
+            var default_value = this.$('input').data('default');
+            default_value = this.roundToHalf(default_value);
+            this.set('star_value', default_value);
+            // is_editable value from DOM
+            this.is_editable = !this.$input.data('is_disabled');
+        },
+        changeStars: function(){
+            var val = this.get("star_value");
+            var index = Math.floor(val);
+            var decimal = val - index;
+            // reset the stars
+            this.star_list.removeClass('fa-star fa-star-half-o').addClass('fa-star-o');
+
+            this.$('.stars').find("i:lt("+index+")").removeClass('fa-star-o fa-star-half-o').addClass('fa-star');
+            if(decimal){
+                this.$('.stars').find("i:eq("+(index)+")").removeClass('fa-star-o fa-star fa-star-half-o').addClass('fa-star-half-o');
+            }
+
+            this.$input.val(val);
+            this.$('.rate_text .label').text(this.labels[index]);
+        },
+        moveOut: function(){
+            if(!this.user_click && this.is_editable){
+                this.set("star_value", 0);
+            }
+            this.user_click = false;
+        },
+        moveOnStars: function(e){
+            if(this.is_editable){
+                this.$('.rate_text').show();
+                var index = this.$('.stars i').index(e.currentTarget);
+                this.set("star_value", index+1);
+            }
+        },
+        clickOnStar: function(e){
+            if(this.is_editable){
+                this.user_click = true;
+            }
+        },
+        moveOutStars: function(e){
+            this.$('.rate_text').hide();
+        },
+        roundToHalf: function(value) {
+            var converted = parseFloat(value); // Make sure we have a number
+            var decimal = (converted - parseInt(converted, 10));
+            decimal = Math.round(decimal * 10);
+            if(decimal == 5){
+                return (parseInt(converted, 10)+0.5);
+            }
+            if((decimal < 3) || (decimal > 7)){
+                return Math.round(converted);
+            }else{
+                return (parseInt(converted, 10)+0.5);
+            }
+        },
+    });
+
+    var page_widgets = {};
+
+    $(document).ready(function(){
+        // Rating Card
+        $('[data-toggle="rating-popover"]').popover({
+            html : true,
+            trigger: 'hover',
+            title: function() {
+                return $(this).parent().find('.rating_popover').find('.popover-title').html();
+            },
+            content: function() {
+              return $(this).parent().find('.rating_popover').find('.popover-content').html();
+            }
+        });
+        // Rating Star Widget instances
+        $('.o_rating_star_card').each(function(index, elem){
+            page_widgets[index] = new RatingStarWidget();
+            page_widgets[index].attachTo(elem);
+        })
+    });
+
+    return {
+        RatingStarWidget: RatingStarWidget,
+        rating_star_widgets: page_widgets,
+    };
+});
\ No newline at end of file
diff --git a/addons/rating/static/src/xml/rating_common.xml b/addons/rating/static/src/xml/rating_common.xml
new file mode 100644
index 00000000000..fb703785ae7
--- /dev/null
+++ b/addons/rating/static/src/xml/rating_common.xml
@@ -0,0 +1,21 @@
+
+<templates id="template" xml:space="preserve">
+    <t t-name="rating.rating_star_card">
+        <div class="o_rating_star_card">
+            <div t-att-class="'stars ' + (widget.options.rating_disabled ? 'disabled' : 'enabled')">
+                <i class="fa fa-star-o"></i>
+                <i class="fa fa-star-o"></i>
+                <i class="fa fa-star-o"></i>
+                <i class="fa fa-star-o"></i>
+                <i class="fa fa-star-o"></i>
+            </div>
+            <div t-if="!widget.options.rating_disabled" class="rate_text">
+                <span class="label label-info"></span>
+            </div>
+        <input type="hidden" readonly="readonly"
+            name="rating"
+            t-att-data-default="widget.options.rating_default_value || 0.0"
+            t-att-data-is_disabled="widget.options.rating_disabled ? 1 : 0"/>
+        </div>
+    </t>
+</templates>
diff --git a/addons/rating/views/rating_template.xml b/addons/rating/views/rating_template.xml
index 7ff1c3b80e2..8f84562265e 100644
--- a/addons/rating/views/rating_template.xml
+++ b/addons/rating/views/rating_template.xml
@@ -1,6 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <openerp>
     <data>
+
+        <!-- Bundle for Rating Widget (in assets common to be used in website modules) -->
+        <template id="assets_common" inherit_id="web.assets_common" name="Rating common assets">
+            <xpath expr='.' position="inside">
+                <script src="/rating/static/src/js/rating_common.js"></script>
+                <link href="/rating/static/src/css/rating_common.css" rel="stylesheet"/>
+            </xpath>
+        </template>
+
         <!-- backend assets -->
         <template id="assets_backend" name="rating assets" inherit_id="web.assets_backend">
             <xpath expr="." position="inside">
@@ -8,7 +17,84 @@
             </xpath>
         </template>
 
-        <!-- Thanks page -->
+        <!-- Rating Star Widget (Generic widget)
+            :param String rating_input_name : the name of the input field to send the rating
+            :param Float rating_default_value : the rate to initialize the widget with
+            :param Boolean rating_disabled : is the widget disabled (False), or it is just used to display information (True). Default value is False
+        -->
+        <template id="rating_star_card" name="Rating Star Widget">
+            <div class="o_rating_star_card">
+                <div t-attf-class="stars #{rating_disabled and 'disabled' or 'enabled'}">
+                    <i class="fa fa-star-o"></i>
+                    <i class="fa fa-star-o"></i>
+                    <i class="fa fa-star-o"></i>
+                    <i class="fa fa-star-o"></i>
+                    <i class="fa fa-star-o"></i>
+                </div>
+                <div t-if="not rating_disabled" class="rate_text">
+                    <span class="label label-info"></span>
+                </div>
+            <input type="hidden" readonly="readonly"
+                t-att-name="rating_input_name or 'rating'"
+                t-att-data-default="rating_default_value or 0.0"
+                t-att-data-is_disabled="rating_disabled and 1 or 0"/>
+            </div>
+        </template>
+
+        <!-- Rating card : display the result (avg, total, ...) for rating
+            :param dict rating_stat : a dictionnary with
+                    'avg' : containing the rating note average
+                    'total' : the number of rating for the object
+                    'percent' : a dict where the key is each possible rate, and the value is
+                                the percent of rating having this rate.
+            :param float max_rate : the upper bound of the rate to display (in the popover)
+            :param float min_rate : the lower bound of the rate to display (in the popover)
+        -->
+        <template id="rating_card" name="Rating Card">
+            <div class="o_rating_card">
+                <div class="text-center well well-sm">
+                    <!-- popover 'button' -->
+                    <div class="rating"
+                        data-placement="top"
+                        data-toggle="rating-popover">
+                        <t t-call="rating.rating_star_card">
+                            <t t-set="rating_default_value" t-value="'%.2f' % (rating_stat.get('avg', 0.0),)"/>
+                            <t t-set="rating_disabled" t-value="True"/>
+                        </t>
+                        <i class="fa fa-user"> <t t-esc="rating_stat.get('total', 0)"/></i>
+                    </div>
+                    <!-- popover core -->
+                    <div class="popover rating_popover" role="tooltip">
+                        <div class="arrow"></div>
+                        <div class="popover-content">
+                            <t t-foreach="rating_stat.get('percent')" t-as="percent">
+                                <t t-if="min_rate &lt;= percent and percent &lt;= max_rate">
+                                    <div class="progress" style="width:200px;">
+                                        <div class="progress-bar" role="progressbar"
+                                            aria-valuemin="0"
+                                            aria-valuemax="100"
+                                            t-att-aria-valuenow="rating_stat['percent'][percent]"
+                                            t-attf-style="width: #{rating_stat['percent'][percent]}%">
+                                            <span class="sr-only">
+                                                <t t-esc="rating_stat['percent'][percent]"/>%
+                                            </span>
+                                        </div>
+                                        <span class="progress_type">
+                                            <t t-esc="percent"/> <i class="fa fa-star"/>
+                                        </span>
+                                        <span class="progress_completed">
+                                            <t t-esc="rating_stat['percent'][percent]"/>%
+                                        </span>
+                                    </div>
+                                </t>
+                            </t>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </template>
+
+        <!-- External page : thanks message -->
         <template id="rating_external_page_view">
             <head>
                 <link rel='stylesheet' href='/web/static/lib/bootstrap/css/bootstrap.css'/>
@@ -24,5 +110,6 @@
                 <h1>Sorry you have already voted !</h1>
             </div>
         </template>
+
     </data>
 </openerp>