[ADD] event_crm_sale: create leads from attendees

PURPOSE

Introduce an automated tool to create leads from event registrations. Events
are a powerful source of leads as they attract attention. This leads to leads
with good quality as they mark interest while gathering contact information
which allows to follow-up.

This merge aims at automating this process by automatically creating leads
based on user-defined rules.

SPECIFICATIONS

Ensure information updated on sale order also updates lead information.

Also display group-based option for rules as registrations can now be
grouped by sale order.

LINKS

Task ID 2166679
PR #52334
Upgrade PR odoo/upgrade#1292

Co-Authored-By: Jérémy Hennecart <jeh@odoo.com>
Co-Authored-By: Thibault Delavallée <tde@odoo.com>

addons/event_crm_sale/__init__.py

@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

addons/event_crm_sale/__manifest__.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+{
+    'name': 'Event CRM Sale',
+    'version': '1.0',
+    'category': 'Marketing/Events',
+    'website': 'https://www.odoo.com/page/events',
+    'description': "Add information of sale order linked to the registration for the creation of the lead.",
+    'depends': ['event_crm', 'event_sale'],
+    'data': [
+        'views/event_lead_rule_views.xml',
+    ],
+    'installable': True,
+    'auto_install': True,
+}

addons/event_crm_sale/models/__init__.py

@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import event_registration

addons/event_crm_sale/models/event_registration.py

@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from collections import defaultdict
+
+from odoo import models
+
+
+class EventRegistration(models.Model):
+    _inherit = 'event.registration'
+
+    def _get_lead_grouping(self, rules, rule_to_new_regs):
+        """ Override to support sale-order based grouping and update.
+
+        When checking for groups for rules, we search for existing leads linked
+        to same group (based on sale_order_id) and rule. Each rule can therefore
+        update an existing lead or create a new one, for each sale order that
+        makes the group. """
+        so_registrations = self.filtered(lambda reg: reg.sale_order_id)
+        grouping_res = super(EventRegistration, self - so_registrations)._get_lead_grouping(rules, rule_to_new_regs)
+
+        if so_registrations:
+            # find existing leads in batch to put them in cache and avoid multiple search / queries
+            related_registrations = self.env['event.registration'].search([
+                ('sale_order_id', 'in', so_registrations.sale_order_id.ids)
+            ])
+            related_leads = self.env['crm.lead'].search([
+                ('event_lead_rule_id', 'in', rules.ids),
+                ('registration_ids', 'in', related_registrations.ids)
+            ])
+
+            for rule in rules:
+                rule_new_regs = rule_to_new_regs[rule]
+
+                # for each group (sale_order), find its linked registrations
+                so_to_regs = defaultdict(lambda: self.env['event.registration'])
+                for registration in rule_new_regs & so_registrations:
+                    so_to_regs[registration.sale_order_id] |= registration
+
+                # for each grouped registrations, prepare result with group and existing lead
+                so_res = []
+                for sale_order, registrations in so_to_regs.items():
+                    registrations = registrations.sorted('id')  # as an OR was used, re-ensure order
+                    leads = related_leads.filtered(lambda lead: lead.event_lead_rule_id == rule and lead.registration_ids.sale_order_id == sale_order)
+                    so_res.append((leads, sale_order, registrations))
+                if so_res:
+                    grouping_res[rule] = grouping_res.get(rule, list()) + so_res
+
+        return grouping_res

addons/event_crm_sale/views/event_lead_rule_views.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="event_lead_rule_view_tree" model="ir.ui.view">
+        <field name="name">event.lead.rule.view.tree.inherit.event.crm.sale</field>
+        <field name="model">event.lead.rule</field>
+        <field name="inherit_id" ref="event_crm.event_lead_rule_view_tree"/>
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='lead_creation_basis']" position="attributes">
+                <attribute name="invisible">0</attribute>
+            </xpath>
+        </field>
+    </record>
+    <record id="event_lead_rule_view_form" model="ir.ui.view">
+        <field name="name">event.lead.rule.view.form.inherit.event.crm.sale</field>
+        <field name="model">event.lead.rule</field>
+        <field name="inherit_id" ref="event_crm.event_lead_rule_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='lead_creation_basis']" position="attributes">
+                <attribute name="invisible">0</attribute>
+            </xpath>
+        </field>
+    </record>
+</odoo>