[IMP] rating,project: display rating text based on the average rating

This commit adds a rating text field called `rating_avg_text` to display
a text based on the value of `rating_avg` field in `rating.mixin` model.
Here is the text displayed based on the value of `rating_avg`:

1. 'Satisfied' if the `rating_avg >= 3.66`
2. 'Okay' if the `2.33 <= rating_avg < 3.66`
3. 'Dissatisfied' if the `1 <= rating_avg < 2.33`
4. 'No Rating' if the `rating_avg < 1`

addons/project/views/project_views.xml

@@ -849,13 +849,14 @@
                         <span id="button_worksheet" invisible="1"/>
                         <!-- Dummy tag used to organize buttons, englobing the 3 buttons modifies the width of the button -->
                         <span id="start_rating_buttons" invisible="1"/>
+                        <field name="rating_avg" invisible="1"/>
                         <button name="action_open_ratings" type="object" attrs="{'invisible': [('rating_count', '=', 0)]}" class="oe_stat_button" groups="project.group_project_rating">
                             <i class="fa fa-fw o_button_icon fa-smile-o text-success" attrs="{'invisible': [('rating_avg', '&lt;', 3.66)]}" title="Satisfied"/>
                             <i class="fa fa-fw o_button_icon fa-meh-o text-warning" attrs="{'invisible': ['|', ('rating_avg', '&lt;', 2.33), ('rating_avg', '&gt;=', 3.66)]}" title="Okay"/>
                             <i class="fa fa-fw o_button_icon fa-frown-o text-danger" attrs="{'invisible': [('rating_avg', '&gt;=', 2.33)]}" title="Dissatisfied"/>
                             <div class="o_field_widget o_stat_info">
-                                <span class="o_stat_value"><field name="rating_avg" nolabel="1"/> / 5</span>
-                                <span class="o_stat_text">Ratings</span>
+                                <span class="o_stat_value"><field name="rating_avg_text" nolabel="1"/></span>
+                                <span class="o_stat_text">Rating</span>
                             </div>
                         </button>
                         <!-- Dummy tag used to organize buttons -->

addons/rating/models/rating.py

@@ -10,6 +10,12 @@ from odoo.modules.module import get_resource_path
 RATING_LIMIT_SATISFIED = 4
 RATING_LIMIT_OK = 3
 RATING_LIMIT_MIN = 1
+RATING_TEXT = [
+    ('top', 'Satisfied'),
+    ('ok', 'Okay'),
+    ('ko', 'Dissatisfied'),
+    ('none', 'No Rating yet'),
+]
 
 
 class Rating(models.Model):
@@ -55,11 +61,7 @@ class Rating(models.Model):
     partner_id = fields.Many2one('res.partner', string='Customer', help="Author of the rating")
     rating = fields.Float(string="Rating Value", group_operator="avg", default=0, help="Rating value: 0=Unhappy, 5=Happy")
     rating_image = fields.Binary('Image', compute='_compute_rating_image')
-    rating_text = fields.Selection([
-        ('top', 'Satisfied'),
-        ('ok', 'Okay'),
-        ('ko', 'Dissatisfied'),
-        ('none', 'No Rating yet')], string='Rating', store=True, compute='_compute_rating_text', readonly=True)
+    rating_text = fields.Selection(RATING_TEXT, string='Rating', store=True, compute='_compute_rating_text', readonly=True)
     feedback = fields.Text('Comment', help="Reason of the rating")
     message_id = fields.Many2one(
         'mail.message', string="Message",

addons/rating/models/rating_mixin.py

@@ -5,7 +5,7 @@ from collections import defaultdict
 from datetime import timedelta
 
 from odoo import api, fields, models, tools
-from odoo.addons.rating.models.rating import RATING_LIMIT_SATISFIED, RATING_LIMIT_OK, RATING_LIMIT_MIN
+from odoo.addons.rating.models.rating import RATING_LIMIT_SATISFIED, RATING_LIMIT_OK, RATING_LIMIT_MIN, RATING_TEXT
 from odoo.osv import expression
 from odoo.tools.float_utils import float_compare
 
@@ -17,6 +17,9 @@ OPERATOR_MAPPING = {
     '>': operator.gt,
     '>=': operator.ge,
 }
+RATING_AVG_TOP = 3.66
+RATING_AVG_OK = 2.33
+RATING_AVG_MIN = RATING_LIMIT_MIN
 
 
 class RatingParentMixin(models.AbstractModel):
@@ -98,6 +101,8 @@ class RatingMixin(models.AbstractModel):
     rating_count = fields.Integer('Rating count', compute="_compute_rating_stats", compute_sudo=True)
     rating_avg = fields.Float("Average Rating", groups='base.group_user',
         compute='_compute_rating_stats', compute_sudo=True, search='_search_rating_avg')
+    rating_avg_text = fields.Selection(RATING_TEXT, groups='base.group_user',
+        compute='_compute_rating_avg_text', compute_sudo=True)
     rating_percentage_satisfaction = fields.Float("Rating Satisfaction", compute='_compute_rating_satisfaction', compute_sudo=True)
     rating_last_text = fields.Selection(string="Rating Text", groups='base.group_user', related="rating_ids.rating_text")
 
@@ -130,6 +135,18 @@ class RatingMixin(models.AbstractModel):
         ]
         return [('id', 'in', res_ids)]
 
+    @api.depends('rating_avg')
+    def _compute_rating_avg_text(self):
+        for record in self:
+            if float_compare(record.rating_avg, RATING_AVG_TOP, 2) >= 0:
+                record.rating_avg_text = 'top'
+            elif float_compare(record.rating_avg, RATING_AVG_OK, 2) >= 0:
+                record.rating_avg_text = 'ok'
+            elif float_compare(record.rating_avg, RATING_AVG_MIN, 2) >= 0:
+                record.rating_avg_text = 'ko'
+            else:
+                record.rating_avg_text = 'none'
+
     @api.depends('rating_ids.res_id', 'rating_ids.rating')
     def _compute_rating_satisfaction(self):
         """ Compute the rating satisfaction percentage, this is done separately from rating_count and rating_avg