[IMP] estate: added auto fields and smart defaults

Added total area and best offer calculation, linked offer validity and
deadline dates setting any one will automatically set another, and
default values for garden details will be automatically filled when
garden is selected.

These changes make data entry easier and reduce manual work.
The total area and best offer are calculated automatically, so users
don’t need to compute them. Offer validity and deadline are connected,
meaning entering one will automatically fill the other, avoiding confusion.
When a garden is selected, related fields like area and orientation are
pre-filled with default values, helping users enter information faster and
more consistently.

chapter:  8(Computed Fields And Onchanges)

Author: patsh-odoo

estate/__manifest__.py

@@ -2,6 +2,8 @@
     "name": "estate",
     "depends": ["base"],
     "application": True,
+    "author": "shrey patel",
+    "license": "LGPL-3",
     "data": [
         "security/ir.model.access.csv",
         "views/estate_property_type_views.xml",

estate/models/estate_property.py

@@ -1,4 +1,4 @@
-from odoo import models, fields
+from odoo import models, fields, api
 
 
 class Estate(models.Model):
@@ -29,7 +29,7 @@ class Estate(models.Model):
             ("west", "West"),
         ],
     )
-    active = fields.Boolean(string="State", default=True)
+    active = fields.Boolean(string="Active", default=True)
     state = fields.Selection(
         string="State",
         selection=[
@@ -58,3 +58,24 @@ class Estate(models.Model):
         inverse_name="property_id",
         string="Offers",
     )
+    total_area = fields.Integer(string="Total Area", compute="_compute_total_area")
+    best_price = fields.Float(string="Best Offer", compute="_compute_best_price")
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.garden_area + record.living_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for record in self:
+            record.best_price = max(record.offer_ids.mapped("price"), default=0)
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_orientation = "north"
+            self.garden_area = 10
+        else:
+            self.garden_orientation = False
+            self.garden_area = False

estate/models/estate_property_offer.py

@@ -1,9 +1,10 @@
-from odoo import models, fields
+from odoo import models, fields, api
 
 
 class EstatePropertyOffer(models.Model):
     _name = "estate.property_offer"
-    price = fields.Char(string="Price")
+    _description = "Offers received for property"
+    price = fields.Float(string="Price")
     status = fields.Selection(
         selection=[("accepted", "Accepted"), ("refused", "Refused")],
         string="Status",
@@ -15,3 +16,33 @@ class EstatePropertyOffer(models.Model):
     property_id = fields.Many2one(
         comodel_name="estate_property", string="Property", required=True
     )
+    validity = fields.Integer(string="Validity (days)", default=7)
+    date_deadline = fields.Date(
+        string="Deadline",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+    )
+
+    @api.depends("create_date", "validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = fields.Date.add(
+                (
+                    record.create_date.date()
+                    if record.create_date
+                    else fields.Date.context_today(record)
+                ),
+                days=record.validity,
+            )
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            if record.date_deadline:
+                record.validity = (
+                    record.date_deadline
+                    - (
+                        record.create_date.date()
+                        if record.create_date
+                        else fields.Date.context_today(record)
+                    )
+                ).days

estate/models/estate_property_tag.py

@@ -3,4 +3,5 @@
 
 class EstatePropertyTag(models.Model):
     _name = "estate.property_tag"
+    _description = "Tags for property"
     name = fields.Char(string="name")

estate/models/estate_property_type.py

@@ -3,4 +3,5 @@
 
 class EstatePropertyType(models.Model):
     _name = "estate.property_type"
+    _description = "Defines property type"
     name = fields.Char(string="Property Type", required=True)

estate/views/estate_property_offer_views.xml

@@ -6,6 +6,8 @@
             <list>
                 <field name="price"/>
                 <field name="partner_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
                 <field name="status"/>
             </list>
         </field>
@@ -19,6 +21,8 @@
                 <group>
                     <field name="price"/>
                     <field name="partner_id"/>
+                    <field name="validity"/>
+                    <field name="date_deadline"/>
                     <field name="status"/>
                 </group>
             </form>

estate/views/estate_property_views.xml

@@ -44,6 +44,7 @@
                         </group>
                         <group>
                             <field name="expected_price"/>
+                            <field name="best_price"/>
                             <field name="selling_price"/>
                         </group>
                     </group>
@@ -58,6 +59,7 @@
                                 <field name="garden"/>
                                 <field name="garden_area" string="Garden Area (sqm)"/>
                                 <field name="garden_orientation"/>
+                                <field name="total_area" string="Total Area (sqm)"/>
                             </group>
                         </page>
                         <page string="Offers">
@@ -96,3 +98,4 @@
         </field>
     </record>
 </odoo>
+