[IMP] mail: introduce MailTemplateView

Task-2793280

closes odoo/odoo#87213

Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

addons/mail/static/src/components/activity/activity.xml

@@ -106,13 +106,14 @@
                         </div>
                     </t>
 
-                    <t t-if="activityView.activity.mailTemplates.length > 0">
+                    <t t-if="activityView.mailTemplateViews.length > 0">
                         <div class="o_Activity_mailTemplates">
-                            <t t-foreach="activityView.activity.mailTemplates" t-as="mailTemplate" t-key="mailTemplate.localId">
+                            <t t-foreach="activityView.mailTemplateViews" t-as="mailTemplateView" t-key="mailTemplateView.localId">
                                 <MailTemplate
                                     className="'o_Activity_mailTemplate'"
                                     activityLocalId="activityView.activity.localId"
-                                    mailTemplateLocalId="mailTemplate.localId"
+                                    localId="mailTemplateView.localId"
+                                    mailTemplateLocalId="mailTemplateView.mailTemplate.localId"
                                 />
                             </t>
                         </div>

addons/mail/static/src/components/mail_template/mail_template.js

@@ -24,6 +24,13 @@ export class MailTemplate extends Component {
         return this.messaging && this.messaging.models['MailTemplate'].get(this.props.mailTemplateLocalId);
     }
 
+    /**
+     * @returns {MailTemplateView}
+     */
+    get mailTemplateView() {
+        return this.messaging && this.messaging.models['MailTemplateView'].get(this.props.localId);
+    }
+
     //--------------------------------------------------------------------------
     // Handlers
     //--------------------------------------------------------------------------
@@ -53,6 +60,7 @@ export class MailTemplate extends Component {
 Object.assign(MailTemplate, {
     props: {
         activityLocalId: String,
+        localId: String,
         mailTemplateLocalId: String,
     },
     template: 'mail.MailTemplate',

addons/mail/static/src/components/mail_template/mail_template.xml

@@ -2,7 +2,7 @@
 <templates xml:space="preserve">
 
     <t t-name="mail.MailTemplate" owl="1">
-        <t t-if="mailTemplate">
+        <t t-if="mailTemplateView">
             <div class="o_MailTemplate" t-attf-class="{{ className }}" t-ref="root">
                 <i class="fa fa-envelope-o" title="Mail" role="img"/>
                 <span class="o_MailTemplate_name" t-esc="mailTemplate.name"/>

addons/mail/static/src/models/activity_view.js

@@ -1,8 +1,8 @@
 /** @odoo-module **/
 
 import { registerModel } from '@mail/model/model_core';
-import { attr, one } from '@mail/model/model_field';
-import { clear, insertAndReplace } from '@mail/model/model_field_command';
+import { attr, many, one } from '@mail/model/model_field';
+import { clear, insertAndReplace, replace } from '@mail/model/model_field_command';
 
 import { auto_str_to_date, getLangDateFormat, getLangDatetimeFormat } from 'web.time';
 
@@ -121,6 +121,20 @@ registerModel({
             const datetimeFormat = getLangDateFormat();
             return momentDeadlineDate.format(datetimeFormat);
         },
+        /**
+         * @private
+         * @returns {FieldCommand}
+         */
+        _computeMailTemplateViews() {
+            if (this.activity.mailTemplates.length === 0) {
+                return clear();
+            }
+            return insertAndReplace(
+                this.activity.mailTemplates.map(
+                    mailTemplate => ({ mailTemplate: replace(mailTemplate) })
+                ),
+            );
+        },
         /**
          * @private
          * @returns {string}
@@ -199,6 +213,11 @@ registerModel({
         formattedDeadlineDate: attr({
             compute: '_computeFormattedDeadlineDate',
         }),
+        mailTemplateViews: many('MailTemplateView', {
+            compute: '_computeMailTemplateViews',
+            inverse: 'activityViewOwner',
+            isCausal: true,
+        }),
         /**
          * Label for mark as done. This is just for translations purpose.
          */

addons/mail/static/src/models/mail_template_view.js

@@ -0,0 +1,20 @@
+/** @odoo-module **/
+
+import { registerModel } from '@mail/model/model_core';
+import { one } from '@mail/model/model_field';
+
+registerModel({
+    name: 'MailTemplateView',
+    identifyingFields: ['activityViewOwner', 'mailTemplate'],
+    fields: {
+        activityViewOwner: one('ActivityView', {
+            inverse: 'mailTemplateViews',
+            readonly: true,
+            required: true,
+        }),
+        mailTemplate: one('MailTemplate', {
+            readonly: true,
+            required: true,
+        }),
+    },
+});