[IMP] website_project: Show more attachments on my/task/

Show the attachements that don't come from the mail_messages on the my/task/ page (Like in old website_project_issue module)

addons/website_project/models/project.py

@@ -47,6 +47,15 @@ class Task(models.Model):
 
     website_url = fields.Char('Website URL', compute='_compute_website_url', help='The full URL to access the document through the website.')
 
+    attachment_ids = fields.One2many('ir.attachment', compute='_compute_attachment_ids', string="Main Attachments",
+                                     help="Attachment that don't come from message.")
+
+    def _compute_attachment_ids(self):
+        for task in self:
+            attachment_ids = self.env['ir.attachment'].search([('res_id', '=', task.id), ('res_model', '=', 'project.task')]).ids
+            message_attachment_ids = self.mapped('message_ids.attachment_ids').ids  # from mail_thread
+            task.attachment_ids = list(set(attachment_ids) - set(message_attachment_ids))
+
     def _compute_website_url(self):
         for task in self:
             task.website_url = '/my/task/%s' % task.id

addons/website_project/views/project_templates.xml

@@ -195,6 +195,20 @@
                                     <address t-field="task.user_id" t-field-options='{"widget": "contact", "fields": ["name", "email", "phone"]}'/>
                                 </div>
                             </div>
+                            <div t-if="task.attachment_ids" class='panel-footer'>
+                                <strong>
+                                    <t t-if='len(task.attachment_ids)&gt;1'>Attachments</t>
+                                    <t t-else="">Attachment</t>
+                                </strong>
+                                <div class='row'>
+                                    <div class="col-md-2 col-sm-3 text-center oe_attachments" t-foreach='task.attachment_ids' t-as='attachment'>
+                                        <a t-attf-href="/web/content/#{attachment.id}?download=true" target="_blank">
+                                            <div class='oe_attachment_embedded o_image o_image_small' t-att-title="attachment.name" t-att-data-mimetype="attachment.mimetype" t-attf-data-src="/web/image/#{attachment.id}/50x40"/>
+                                            <div class='oe_attachment_name'><t t-esc='attachment.name' /></div>
+                                        </a>
+                                    </div>
+                                </div>
+                            </div>
                         </div>
                         <div class="col-md-6">
                             <div class="mb8" t-if="task.date_deadline">