[IMP] maintenance : add unscheduled maintenance

The feature added is a count of todo request that has no schedule date.
It will also add a link in the team dashboard that redirect to all
mainenance requests without a scheduled date.

The count is computed in the existing function '_compute_todo_requests'.
It will count requests that are not done and have no scheduled date.

This commit also modify the view and add the default filter 'unscheduled'
(created by a previous commit) for the action
'hr_equipment_todo_request_action_from_dashboard' which opens the maintenance
request for the active team.

addons/maintenance/models/maintenance.py

@@ -371,6 +371,7 @@ class MaintenanceTeam(models.Model):
     todo_request_count_date = fields.Integer(compute='_compute_todo_requests')
     todo_request_count_high_priority = fields.Integer(compute='_compute_todo_requests')
     todo_request_count_block = fields.Integer(compute='_compute_todo_requests')
+    todo_request_count_unscheduled = fields.Integer(compute='_compute_todo_requests')
 
     @api.one
     @api.depends('request_ids.stage_id.done')
@@ -380,6 +381,7 @@ class MaintenanceTeam(models.Model):
         self.todo_request_count_date = len(self.todo_request_ids.filtered(lambda e: e.schedule_date != False))
         self.todo_request_count_high_priority = len(self.todo_request_ids.filtered(lambda e: e.priority == '3'))
         self.todo_request_count_block = len(self.todo_request_ids.filtered(lambda e: e.kanban_state == 'blocked'))
+        self.todo_request_count_unscheduled = len(self.todo_request_ids.filtered(lambda e: not e.schedule_date))
 
     @api.one
     @api.depends('equipment_ids')

addons/maintenance/views/maintenance_views.xml

@@ -691,6 +691,7 @@
                 <field name="todo_request_count_date"/>
                 <field name="todo_request_count_high_priority"/>
                 <field name="todo_request_count_block"/>
+                <field name="todo_request_count_unscheduled"/>
                 <templates>
                     <t t-name="kanban-box">
                         <div>
@@ -735,6 +736,14 @@
                                             <div class="col-xs-3">
                                                 <t t-esc="record.todo_request_count_block.value"/>
                                             </div>
+                                            <div class="col-xs-9">
+                                                <a name="%(hr_equipment_todo_request_action_from_dashboard)d" type="action" context="{'search_default_unscheduled': 1}">
+                                                    Unscheduled
+                                                </a>
+                                            </div>
+                                            <div class="col-xs-3">
+                                                <t t-esc="record.todo_request_count_unscheduled.value"/>
+                                            </div>
                                         </div>
                                     </div>
                                 </div>