[IMP] estate: add actions for selling, cancelled properties and accepting refusing offers

Framework 101 tutorial: chapter 9
- Add actions for selling and cancelling estate properties
- Add actions for accepting and refusing offers

Author: robal-odoo

estate/models/estate_property.py

@@ -1,5 +1,6 @@
 from dateutil.relativedelta import relativedelta
 from odoo import api, fields, models
+from odoo.exceptions import UserError
 
 
 class EstateProperty(models.Model):
@@ -29,6 +30,7 @@ class EstateProperty(models.Model):
         selection=[("new", "New"), ("offer_received", "Offer Received"), ("offer_accepted", "Offer Accepted"), ("sold", "Sold"), ("cancelled", "Cancelled")],
         default="new",
         copy=False,
+        string="Status",
     )
 
     # Relations
@@ -61,3 +63,30 @@ def _compute_garden_defaults(self) -> None:
         else:
             self.garden_area = None
             self.garden_orientation = None
+
+    # Public methods
+    def action_set_sold(self) -> bool:
+        for record in self:
+            if record.state == "sold":
+                error_msg = "This property has already been sold."
+                raise UserError(error_msg)
+
+            if record.state == "cancelled":
+                error_msg = "Cancelled properties cannot be sold."
+                raise UserError(error_msg)
+
+            record.state = "sold"
+        return True
+
+    def action_set_cancelled(self) -> bool:
+        for record in self:
+            if record.state == "sold":
+                error_msg = "Sold properties cannot be cancelled."
+                raise UserError(error_msg)
+
+            if record.state == "cancelled":
+                error_msg = "This property has already been cancelled."
+                raise UserError(error_msg)
+
+            record.state = "cancelled"
+        return True

estate/models/estate_property_offer.py

@@ -2,6 +2,7 @@
 
 from dateutil.relativedelta import relativedelta
 from odoo import api, fields, models
+from odoo.exceptions import UserError
 
 
 class EstatePropertyOffer(models.Model):
@@ -31,6 +32,27 @@ def _inverse_deadline(self) -> None:
         for record in self:
             record.validity = (record.date_deadline - _get_reference_date(record)).days
 
+    # Public methods
+    def action_accept(self) -> bool:
+        for record in self:
+            if record.status == "accepted":
+                error_msg = "This offer has already been accepted."
+                raise UserError(error_msg)
+
+            if record.property_id.offer_ids.filtered(lambda r: r.status == "accepted"):
+                error_msg = "Cannot accept this offer because another offer has already been accepted for the property."
+                raise UserError(error_msg)
+
+            record.status = "accepted"
+            record.property_id.selling_price = record.price
+            record.property_id.buyer_id = record.partner_id
+        return True
+
+    def action_refuse(self) -> bool:
+        for record in self:
+            record.status = "refused"
+        return True
+
 
 def _get_reference_date(offer: EstatePropertyOffer) -> date:
     return fields.Date.today() if not offer.create_date else offer.create_date.date()

estate/views/estate_property_offer_views.xml

@@ -7,9 +7,11 @@
             <list>
                 <field name="price"/>
                 <field name="partner_id"/>
-                <field name="status"/>
                 <field name="validity"/>
                 <field name="date_deadline"/>
+                <button name="action_accept" type="object" icon="fa-check"/>
+                <button name="action_refuse" type="object" icon="fa-times"/>
+                <field name="status"/>
             </list>
         </field>
     </record>

estate/views/estate_property_views.xml

@@ -21,6 +21,10 @@
         <field name="model">estate.property</field>
         <field name="arch" type="xml">
             <form>
+                <header>
+                    <button name="action_set_sold" type="object" string="SOLD"/>
+                    <button name="action_set_cancelled" type="object" string="CANCEL"/>
+                </header>
                 <sheet>
                     <h1>
                         <field name="name" nolabel="true"/>
@@ -29,6 +33,7 @@
 
                     <group>
                         <group>
+                            <field name="state"/>
                             <field name="property_type_id"/>
                             <field name="postcode"/>
                             <field name="date_availability"/>