[ADD] estate: Add property and offer action buttons with smart restrictions

- Property page now has Cancel and Sold buttons for quick status updates
- Cancelled properties cannot be marked sold and vice versa
- Offer page includes Accept and Refuse buttons for better offer handling
- Accepting an offer sets the buyer and selling price automatically
- Ensures only one offer can be accepted per property

Author: pusu-odoo

estate/models/estate_property.py

@@ -1,4 +1,5 @@
 from odoo import models, fields, api
+from odoo.exceptions import UserError
 from datetime import timedelta
 
 class EstateProperty(models.Model):
@@ -91,4 +92,24 @@ def _onchange_garden(self):
                 property.garden_orientation = 'north'
             else:
                 property.garden_area = 0
-                property.garden_orientation = False
+                property.garden_orientation = False
+
+    def action_set_sold(self):
+        for property in self:
+            if property.selling_price > 0.0 and property.state != "cancelled":
+                property.state = 'sold'
+            elif property.state == "cancelled":
+                raise UserError("A cancelled property cannot be sold.")
+            elif property.state == "new" or property.state == "offer received":
+                raise UserError("This property must have an accepted offer before it can be sold.")
+            elif property.state == "sold":
+                raise UserError("This property is already sold.")
+            
+    def action_set_cancelled(self):
+        for property in self:
+            if property.state != "cancelled" and property.state != "sold":
+                property.state = 'cancelled'
+            elif property.state == "cancelled":
+                raise UserError("This property is already cancelled.")
+            elif property.state == "sold":
+                raise UserError("A sold property cannot be cancelled.")

estate/models/estate_property_offer.py

@@ -1,4 +1,5 @@
 from odoo import models, fields, api
+from odoo.exceptions import UserError
 from datetime import timedelta
 
 class EstatePropertyOffer(models.Model):
@@ -49,4 +50,28 @@ def _inverse_date_deadline(self):
     #             base_date = fields.Date.to_date(offer.create_date) if offer.create_date else fields.Date.context_today(offer)
     #             offer.validity = (offer.date_deadline - base_date).days
     #         else:
-    #             offer.validity = 0
+    #             offer.validity = 0
+
+    def action_set_accepted(self):
+        for offer in self:
+            if offer.property_id.selling_price == 0.0:
+                offer.status = 'accepted'
+                offer.property_id.state = 'offer accepted'
+                offer.property_id.selling_price = offer.price
+                offer.property_id.buyer_id = offer.partner_id
+
+                other_offers = offer.property_id.offer_ids - offer
+
+                other_offers.write({'status': 'refused'})
+            else:
+                raise UserError("One offer is already accepted for this property.")
+            
+    def action_set_refused(self):
+        for offer in self:
+            if offer.status == 'accepted':
+                offer.status = 'refused'
+                offer.property_id.state = 'offer received'
+                offer.property_id.buyer_id = False
+                offer.property_id.selling_price = 0.0
+            else:
+                raise UserError("This offer is not accepted, so it cannot be refused.")

estate/views/estate_property_offer_views.xml

@@ -10,6 +10,8 @@
                 <field name="status"/>
                 <field name="partner_id"/>
                 <field name="validity"/>
+                <button name="action_set_accepted" string="Accepted" type="object" icon="fa-check"/>
+                <button name="action_set_refused" string="Refused" type="object" icon="fa-times"/>   
                 <field name="date_deadline"/>
             </list>
         </field>

estate/views/estate_property_views.xml

@@ -36,6 +36,10 @@
         <field name="model">estate.property</field>
         <field name="arch" type="xml">
             <form string="estate_property_form">
+                <header>
+                    <button name="action_set_sold" string="Sold" type="object"/>
+                    <button name="action_set_cancelled" string="Cancelled" type="object"/>
+                </header>
                 <sheet>
                     <h1>
                         <field name="name"/>
@@ -100,6 +104,7 @@
                 <field name="bedrooms"/>
                 <field name="living_area"/>
                 <field name="facades"/>
+                <field name="property_type_id"/>
                 <filter name="Available" domain="['|', ('state', '=', 'new'),('state', '=', 'offer received')]"/>
                 <group  expand="0" string="Groupe BY">
                     <filter name="postcode" context="{'group_by':'postcode'}"/>