[IMP] estate: Compute total area, best price and add onchange for garden fields

Chapter 8 : Added compute, inverse, and onchange methods for dynamic field updates.
Implemented automatic offer price, total area, and deadline calculations.
Added Tag and Offer models with validity and date deadline logic.

Author: haman-odoo

estate/models/estate_property.py

@@ -67,8 +67,26 @@ class EstateProperty(models.Model):
     total_area = fields.Float(
         compute="_compute_total_area"
     )
+    best_price = fields.Float(
+        compute="_compute_best_price",
+    )
 
     @api.depends('living_area', 'garden_area')
     def _compute_total_area(self):
         for record in self:
             record.total_area = record.living_area + record.garden_area
+
+    @api.depends('offer_ids.price')
+    def _compute_best_price(self):
+        for record in self:
+            prices = record.offer_ids.mapped('price')
+            record.best_price = max(prices) if prices else 0.0
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = None

estate/models/estate_property_offer.py

@@ -1,9 +1,11 @@
-from odoo import models, fields
+from dateutil.relativedelta import relativedelta
+from odoo import models, fields, api
 
 
 class EstatePropertyOffer(models.Model):
     _name = "estate.property.offer"
     _description = "Real Estate Property Offer"
+
     price = fields.Float(string="Price")
     status = fields.Selection(
         [
@@ -20,3 +22,22 @@ class EstatePropertyOffer(models.Model):
         "estate.property",
         required=True,
     )
+    validity = fields.Integer(
+        default=7,
+    )
+    date_deadline = fields.Date(
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+        store=True,
+    )
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for rec in self:
+            create = rec.create_date or fields.Date.today()
+            rec.date_deadline = (create + relativedelta(days=rec.validity))
+
+    def _inverse_date_deadline(self):
+        for rec in self:
+            create = rec.create_date or fields.Date.today()
+            rec.validity = (rec.date_deadline - fields.Date.today(create)).days

estate/models/estate_property_tag.py

@@ -4,4 +4,5 @@
 class EstatePropertyTag(models.Model):
     _name = "estate.property.tag"
     _description = "Real Estate Property Tag"
+
     name = fields.Char(required=True)

estate/models/estate_property_type.py

@@ -4,4 +4,5 @@
 class EstatePropertyType(models.Model):
     _name = "estate.property.type"
     _description = "Real Estate Property Type"
+
     name = fields.Char(required=True)

estate/views/estate_property_offer_views.xml

@@ -6,6 +6,8 @@
             <list string="Offers">
                 <field name="price"/>
                 <field name="partner_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
                 <field name="status"/>
             </list>
         </field>
@@ -20,6 +22,8 @@
                     <group>
                         <field name="price"/>
                         <field name="partner_id"/>
+                        <field name="validity"/>
+                        <field name="date_deadline"/>
                         <field name="status"/>
                     </group>
                 </sheet>

estate/views/estate_property_views.xml

@@ -40,6 +40,7 @@
                         </group>
                         <group>
                             <field name="expected_price" string="Expected Price"/>
+                            <field name="best_price" string="Best Offer" readonly="1"/>
                             <field name="selling_price" string="Selling Price"/>
                         </group>
                     </group>
@@ -78,13 +79,17 @@
                                 <list editable="bottom">
                                     <field name="price"/>
                                     <field name="partner_id"/>
+                                    <field name="validity"/>
+                                    <field name="date_deadline"/>
                                     <field name="status"/>
                                 </list>
                                 <form>
                                     <sheet>
                                         <group>
                                             <field name="price"/>
                                             <field name="partner_id"/>
+                                            <field name="validity"/>
+                                            <field name="date_deadline"/>
                                             <field name="status"/>
                                         </group>
                                     </sheet>