[IMP] link_tracker: add global click count on campaign

Having a global click ratio on the campaign was pointless considering the
nature of the social.app and its posts. Therefore, we decided to have a
global click count which gives a better idea of the popularity of the campaign
itself.

Task ID 2074813 (FP request UTM refactor)
PR: #37185

addons/link_tracker/models/utm.py

@@ -11,11 +11,22 @@ class UtmCampaign(models.Model):
     items_total = fields.Integer(string="Number of items that are part of the campaign", compute="_compute_items_total")
     clicked_total = fields.Integer(string="Number of items that are part of the campaign who generated a click", compute="_compute_items_total")
     clicks_ratio = fields.Integer(string="Global Clicks Ratio for the campaign", compute="_compute_clicks_ratio")
+    click_count = fields.Integer(string="Number of clicks generated by the campaign", compute="_compute_clicks_count")
+
+    def _compute_clicks_count(self):
+        click_data = self.env['link.tracker.click'].read_group(
+            [('campaign_id', 'in', self.ids)],
+            ['campaign_id'], ['campaign_id'])
+
+        mapped_data = {datum['campaign_id'][0]: datum['campaign_id_count'] for datum in click_data}
+
+        for campaign in self:
+            campaign.click_count = mapped_data.get(campaign.id, 0)
 
     def _compute_items_total(self):
         """Empty method that will be implemented by inheriting classes"""
-        self.clicked_total = False
-        self.items_total = False
+        self.clicked_total = 0
+        self.items_total = 0
 
     @api.depends('items_total', 'clicked_total')
     def _compute_clicks_ratio(self):

addons/link_tracker/views/utm_campaign_views.xml

@@ -7,8 +7,8 @@
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('oe_button_box')]" position="inside">
                 <button name="%(link_tracker_action_campaign)d"
-                    type="action" class="oe_stat_button order-12">
-                    <field name="clicks_ratio" widget="percentpie" string="Clicks"/>
+                    type="action" class="oe_stat_button order-12" icon="fa-mouse-pointer">
+                    <field name="click_count" widget="statinfo" string="Clicks"/>
                 </button>
             </xpath>
         </field>
@@ -19,9 +19,12 @@
         <field name="model">utm.campaign</field>
         <field name="inherit_id" ref="utm.utm_campaign_view_kanban"/>
         <field name="arch" type="xml">
+            <xpath expr="//field[@name='stage_id']" position="after">
+                <field name="click_count"/>
+            </xpath>
             <xpath expr="//div[@id='utm_statistics']" position="inside">
                 <div class="d-flex justify-content-between align-items-center w-100 order-1 mb-1">
-                    <strong>Clicks</strong> <span><field name="clicks_ratio"/> %</span>
+                    <strong>Clicks</strong> <span><t t-esc="record.click_count.raw_value"/></span>
                 </div>
             </xpath>
         </field>