[IMP] estate: add computed fields and onchanges - Chapter 8

computed fields: deadline of the offer, best price from many offers
onchange: garden affects garden_area and garden_orientation

Author: Faruk372742

estate/models/estate_property.py

@@ -1,4 +1,4 @@
-from odoo import fields, models
+from odoo import api, fields, models
 from dateutil.relativedelta import relativedelta
 from datetime import datetime
 
@@ -31,6 +31,7 @@ class EstateProperty(models.Model):
     )
     active = fields.Boolean(default=True)
     state = fields.Selection(
+        string="State",
         selection=[
             ("new", "New"),
             ("offer_received", "Offer Received"),
@@ -49,3 +50,28 @@ class EstateProperty(models.Model):
     buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
     tag_ids = fields.Many2many("estate_property_tag")
     offer_ids = fields.One2many("estate_property_offer", "property_id", string="Offers")
+    total_area = fields.Integer("Total Area (sqm)", compute="_compute_area")
+    best_price = fields.Float("Best Price", compute="_compute_best_price")
+
+    @api.depends("living_area", "garden_area")
+    def _compute_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:
+            record.best_price = (
+                0
+                if len(record.offer_ids) == 0
+                else max(offer.price for offer in record.offer_ids)
+            )
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = False
+            self.garden_orientation = False

estate/models/estate_property_offer.py

@@ -1,4 +1,5 @@
-from odoo import fields, models
+from odoo import api, fields, models
+from datetime import timedelta
 
 
 class EstatePropertyOffer(models.Model):
@@ -10,3 +11,23 @@ class EstatePropertyOffer(models.Model):
     )
     partner_id = fields.Many2one("res.partner", required=True)
     property_id = fields.Many2one("estate_property", required=True)
+    validity = fields.Integer("Validity", default=7)
+    date_deadline = fields.Date(
+        "Deadline", compute="_compute_date_deadline", inverse="_inverse_date_deadline"
+    )
+
+    @api.depends("validity", "create_date")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = (
+                record.create_date or fields.Datetime.now()
+            ) + timedelta(days=record.validity)
+
+    # @api.depends("create_date", "date_deadline") Not working right now!!!
+    # def _inverse_date_deadline(self):
+    #     print("Hello!")
+    #     for record in self:
+    #         record.validity = (
+    #             (record.date_deadline or fields.Datetime.now())
+    #             - (record.create_date or fields.Datetime.now())
+    #         ).days

estate/views/estate_property_offer_views.xml

@@ -7,6 +7,8 @@
                 <field name="price" />
                 <field name="partner_id" />
                 <field name="status" />
+                <field name="validity" />
+                <field name="date_deadline" />
             </list>
         </field>
     </record>
@@ -21,6 +23,8 @@
                             <field name="price" />
                             <field name="partner_id" />
                             <field name="status" />
+                            <field name="validity" />
+                            <field name="date_deadline" />
                         </group>
                     </group>
                 </sheet>

estate/views/estate_property_views.xml

@@ -50,6 +50,7 @@
                         <group>
                             <field name="tag_ids" widget="many2many_tags" />
                             <field name="postcode" string="Postcode" />
+                            <field name="best_price" />
                         </group>
                         <group>
                             <field name="expected_price" string="Expected Price" />
@@ -92,7 +93,10 @@
                             <group>
                                 <field name="garden_orientation" string="Garden Orientation" />
                             </group>
-                            <field name="state" />
+                            <group>
+                                <field name="state" />
+                                <field name="total_area" />
+                            </group>
                         </page>
                         <page string="Offers">
                             <field name="offer_ids" />