Add computed field total area to models estate property, add field total area in estate property views

estate/models/estate_property.py

@@ -28,6 +28,13 @@ class EstateProperty(models.Model):
         string="Garden Orientation"
     )
     active = fields.Boolean(default=True)
+    total_area = fields.Integer(compute='_compute_total_area', store=True)
+
+    @api.depends('living_area', 'garden_area')
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.living_area + record.garden_area
+
     state = fields.Selection(
         [
             ('new', 'New'),

estate/views/estate_property_views.xml

@@ -64,6 +64,7 @@
                                 <field name="garden"/>
                                 <field name="garden_area"/>
                                 <field name="garden_orientation"/>
+                                <field name="total_area"/>
                             </group>
                         </page>
                         <page string="Offers">