[IMP] estate: sync offer validity and deadlines

To provide maximum flexibility during property negotiations, sales agents
need the ability to define an offer's expiration either by a specific
calendar date or a set number of days. By bidirectionally synchronizing
the validity duration with the hard deadline date, the system prevents
manual calculation errors and ensures agents can seamlessly negotiate
using whichever metric the buyer prefers. This guarantees data
consistency across the offer records regardless of which field the
user manipulates on the interface.

Chapter: Chapter 8: Computed Fields And Onchanges
Task: [Insert Task Number]

Author: sngohodoo

estate/models/estate_property.py

@@ -17,8 +17,8 @@ class EstateProperty(models.Model):
     living_area = fields.Integer(string="Living Area(sqm)")
     facades = fields.Integer()
     garage = fields.Boolean()
-    garden = fields.Boolean(string="Garden Area(sqm)")
-    garden_area = fields.Integer()
+    garden = fields.Boolean()
+    garden_area = fields.Integer(string="Garden Area(sqm)")
     garden_orientation = fields.Selection(
         string="Garden Orientation",
         selection=[
@@ -60,3 +60,13 @@ def _compute_best_price(self):
         for records in self:
             prices = records.mapped("offer.price")
             records.best_price = max(prices) if prices else 0
+
+    @api.onchange("garden")
+    def _on_change_garden(self):
+        for records in self:
+            if records.garden:
+                records.garden_area = 10
+                records.garden_orientation = "north"
+            else:
+                records.garden_area = False
+                records.garden_orientation = False

estate/models/estate_property_offer.py

@@ -1,4 +1,4 @@
-from odoo import fields, models
+from odoo import api, fields, models
 
 
 class EstatePropertyOffer(models.Model):
@@ -15,3 +15,18 @@ class EstatePropertyOffer(models.Model):
     )
     partner_id = fields.Many2one("res.partner", string="Partner", required=True)
     property_id = fields.Many2one("estate.property", string="Property", required=True)
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(compute="_compute_date_deadline", inverse="_inverse_date_deadline")
+
+    @api.depends("create_date","validity")
+    def _compute_date_deadline(self):
+        for records in self:
+            base_date = records.create_date.date() if records.create_date else fields.Date.today()
+            records.date_deadline = fields.Date.add(base_date,days=records.validity)
+
+    def _inverse_date_deadline(self):
+        for records in self:
+            base_date = records.create_date.date() if records.create_date else fields.Date.today()
+            if records.date_deadline:
+                records.validity = (records.date_deadline - base_date).days
+    

estate/views/estate_property_offer_views.xml

@@ -8,6 +8,8 @@
             <list>
                 <field name="price" />
                 <field name="partner_id" />
+                <field name="validity" />
+                <field name="date_deadline" />
                 <field name="status" />
             </list>
         </field>
@@ -22,6 +24,8 @@
                     <group>
                         <field name="price" />
                         <field name="partner_id" />
+                        <field name="validity" />
+                        <field name="date_deadline" />
                         <field name="status" />
                     </group>
                 </sheet>