add done button in task list view

cor_custom/models/project.py

@@ -330,3 +330,6 @@ class InheritProjectTask(models.Model):
 
     start_date = fields.Date(string='Start Date')
 
+    def action_done_task(self):
+        print('9999999999999999')
+

cor_custom/views/project_view.xml

@@ -218,6 +218,18 @@
         </field>
     </record>
 
+    <!-- Done Task action -->
+    <record id="project_task_server_action_batch_done" model="ir.actions.server">
+        <field name="name">Done</field>
+        <field name="model_id" ref="project.model_project_task"/>
+        <field name="binding_model_id" ref="project.model_project_task"/>
+        <field name="state">code</field>
+        <field name="code">
+            if records:
+                action = records.action_done_task()
+        </field>
+    </record>
+
     <!-- Tags -->
     <record model="ir.ui.view" id="custom_project_tags_search_view">
         <field name="name">Tags</field>