[IMP] project: unarchive tasks when unarchiving stages

Currently, all of the tasks contained in a stage are archived
when the stage is archived. However, the tasks remained archived
when the stage is unarchived.

So in this commit, If the user unarchives a stage, ask the user to
unarchive the tasks it contains in the process.

task-2835624

closes odoo/odoo#94008

Related: odoo/enterprise#28301
Signed-off-by: Laurent Stukkens (ltu) <ltu@odoo.com>

addons/project/models/project.py

@@ -138,6 +138,27 @@ class ProjectTaskType(models.Model):
             self.env['project.task'].search([('stage_id', 'in', self.ids)]).write({'active': False})
         return super(ProjectTaskType, self).write(vals)
 
+    def toggle_active(self):
+        res = super().toggle_active()
+        stage_active = self.filtered('active')
+        inactive_tasks = self.env['project.task'].with_context(active_test=False).search(
+            [('active', '=', False), ('stage_id', 'in', stage_active.ids)], limit=1)
+        if stage_active and inactive_tasks:
+            wizard = self.env['project.task.type.delete.wizard'].create({
+                'stage_ids': stage_active.ids,
+            })
+
+            return {
+                'name': _('Unarchive Tasks'),
+                'view_mode': 'form',
+                'res_model': 'project.task.type.delete.wizard',
+                'views': [(self.env.ref('project.view_project_task_type_unarchive_wizard').id, 'form')],
+                'type': 'ir.actions.act_window',
+                'res_id': wizard.id,
+                'target': 'new',
+            }
+        return res
+
     @api.depends('project_ids', 'project_ids.rating_active')
     def _compute_disabled_rating_warning(self):
         for stage in self:

addons/project/wizard/project_task_type_delete.py

@@ -41,6 +41,11 @@ class ProjectTaskTypeDelete(models.TransientModel):
             'context': self.env.context,
         }
 
+    def action_unarchive_task(self):
+        inactive_tasks = self.env['project.task'].with_context(active_test=False).search(
+            [('active', '=', False), ('stage_id', 'in', self.stage_ids.ids)])
+        inactive_tasks.action_unarchive()
+
     def action_confirm(self):
         tasks = self.with_context(active_test=False).env['project.task'].search([('stage_id', 'in', self.stage_ids.ids)])
         tasks.write({'active': False})

addons/project/wizard/project_task_type_delete_views.xml

@@ -46,4 +46,21 @@
             </form>
         </field>
     </record>
+
+    <record id="view_project_task_type_unarchive_wizard" model="ir.ui.view">
+        <field name="name">project.task.type.delete.wizard.form</field>
+        <field name="model">project.task.type.delete.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Delete Stage">
+                <div>
+                    <p>Would you like to unarchive all of the tasks contained in these stages as well?</p>
+                </div>
+                <footer>
+                    <button string="Confirm" type="object" name="action_unarchive_task" class="btn btn-primary"/>
+                    <button string="Discard" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
 </odoo>