venpr: estate: complete chapters 1–7 of Real Estate tutorial

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Real Estate",
+    "version": "1.0",
+    "category": "Tutorials",
+    "summary": "Real Estate Advertisement Module",
+    "author": "Prasad Venkat",
+    "license": "LGPL-3",
+    "depends": ["base"],
+    "data": [
+        "security/ir.model.access.csv",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_menus.xml",
+    ],
+    "application": True,
+    "installable": True,
+}

estate/models/__init__.py

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+from . import estate_property
+from . import estate_property_type
+from . import estate_property_tag
+from . import estate_property_offer

estate/models/estate_property.py

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+from datetime import timedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        default=lambda self: fields.Date.today() + timedelta(days=90),
+        copy=False,
+    )
+    expected_price = fields.Float(required=True, default=0.0)
+    selling_price = fields.Float(readonly=True, copy=False)
+    best_price = fields.Float(compute="_compute_best_price")
+    bedrooms = fields.Integer(default=2, copy=False)
+    living_area = fields.Integer()
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer()
+    total_area = fields.Float(compute="_compute_total_area")
+    garden_orientation = fields.Selection(
+        [
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ]
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection([
+        ('new', 'New'),
+        ('offer_received', 'Offer Received'),
+        ('offer_accepted', 'Offer Accepted'),
+        ('sold', 'Sold'),
+        ('cancelled', 'Cancelled'),
+    ], compute="_compute_state", store=True)
+    property_type_id = fields.Many2one(
+        "estate.property.type",
+        string="Property Type",
+    )
+    buyer_id = fields.Many2one(
+        "res.partner",
+        string="Buyer",
+        copy=False,
+        readonly=True,
+    )
+    user_id = fields.Many2one(
+        "res.users",
+        string="Salesperson",
+        default=lambda self: self.env.user,
+    )
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many(
+        "estate.property.offer",
+        "property_id",
+        string="Offers",
+    )
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_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:
+            prices = record.offer_ids.mapped("price")
+            record.best_price = max(prices) if prices else 0.0
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    @api.depends('offer_ids.status')
+    def _compute_state(self):
+        for property_rec in self:
+            offers = property_rec.offer_ids
+            if property_rec.state in ['sold', 'cancelled']:
+                continue
+            if not offers:
+                property_rec.state = 'new'
+            elif any(o.status == 'accepted' for o in offers):
+                property_rec.state = 'offer_accepted'
+            else:
+                property_rec.state = 'offer_received'
+
+    def action_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("Sold property cannot be cancelled.")
+            record.state = "cancelled"
+
+    def action_sold(self):
+        for record in self:
+            if record.state == 'cancelled':
+                raise UserError("Cancelled property cannot be sold.")
+            accepted_offer = record.offer_ids.filtered(
+                lambda o: o.status == 'accepted'
+            )
+            if not accepted_offer:
+                raise UserError("You must accept an offer before selling the property.")
+            record.state = 'sold'

estate/models/estate_property_offer.py

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+from datetime import timedelta
+
+from odoo import api, models, fields
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Estate Property Offer"
+
+    price = fields.Float(string="Offer Price")
+    status = fields.Selection(
+        [
+            ("pending", "Pending"),
+            ("accepted", "Accepted"),
+            ("refused", "Refused"),
+        ],
+        copy=False,
+        default="pending",
+    )
+    partner_id = fields.Many2one(
+        "res.partner",
+        string="Buyer",
+        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 record in self:
+            create_date = record.create_date.date() if record.create_date else fields.Date.today()
+            record.date_deadline = create_date + timedelta(days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            create_date = record.create_date.date() if record.create_date else fields.Date.today()
+            record.validity = (record.date_deadline - create_date).days
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        offers = super().create(vals_list)
+        for offer in offers:
+            property_rec = offer.property_id
+            if property_rec.state in ['offer_accepted', 'sold', 'cancelled']:
+                raise UserError("Cannot create offer for this property.")
+        return offers
+
+    def action_accept(self):
+        for offer in self:
+            if offer.property_id.state in ['sold', 'cancelled']:
+                raise UserError("You cannot accept an offer on a sold or cancelled property.")
+            accepted_offer = offer.property_id.offer_ids.filtered(
+                lambda o: o.status == "accepted" and o != offer
+            )
+            if accepted_offer:
+                raise UserError("Only one offer can be accepted for a property.")
+            offer.status = "accepted"
+            offer.property_id.write({
+                'selling_price': offer.price,
+                'buyer_id': offer.partner_id.id,
+                'state': 'offer_accepted'
+            })
+
+    def action_refuse(self):
+        for offer in self:
+            property_rec = offer.property_id
+            if property_rec.state in ['sold', 'cancelled']:
+                raise UserError("You cannot refuse an offer on a sold or cancelled property.")
+            if offer.status == "accepted":
+                offer.status = "refused"
+                property_rec.write({
+                    'selling_price': 0.0,
+                    'buyer_id': False,
+                })
+                other_pending = property_rec.offer_ids.filtered(
+                    lambda o: o.status == 'pending'
+                )
+                if other_pending:
+                    property_rec.state = 'offer_received'
+                else:
+                    property_rec.state = 'new'
+            else:
+                offer.status = "refused"

estate/models/estate_property_tag.py

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+from odoo import models, fields
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+
+    name = fields.Char(required=True)

estate/models/estate_property_type.py

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+from odoo import models, fields
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+
+    name = fields.Char(required=True)

estate/security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_estate_property_user,estate.property user,model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type_user,estate.property.type user,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag_user,estate.property.tag user,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer_user,estate.property.offer user,model_estate_property_offer,base.group_user,1,1,1,1

estate/views/estate_menus.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate" sequence="10" />
+    <menuitem id="estate_menu_properties" name="Properties" parent="estate_menu_root" action="estate_property_action" sequence="10" />
+    <menuitem id="estate_menu_settings" name="Settings" parent="estate_menu_root" sequence="20" />
+    <menuitem id="estate_property_type_menu" name="Property Types" parent="estate_menu_settings" action="estate_property_type_action" sequence="10" />
+    <menuitem id="estate_property_tag_menu" name="Property Tags" parent="estate_menu_settings" action="estate_property_tag_action" sequence="20" />
+</odoo>

estate/views/estate_property_offer_views.xml

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+<odoo>
+    <record id="estate_property_offer_list" model="ir.ui.view">
+        <field name="name">estate.property.offer.list</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <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"
+                        class="btn-success"
+                        attrs="{'invisible': [('status', '!=', 'pending')]}"/>
+                <button name="action_refuse"
+                        type="object"
+                        icon="fa-times"
+                        class="btn-danger"
+                        attrs="{'invisible': [('status', '!=', 'pending')]}"/>
+            </list>
+        </field>
+    </record>
+    <record id="estate_property_offer_form" model="ir.ui.view">
+        <field name="name">estate.property.offer.form</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <group>
+                        <field name="price"/>
+                        <field name="partner_id"/>
+                        <field name="status"/>
+                        <field name="validity"/>
+                        <field name="date_deadline"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="estate_property_tag_action" model="ir.actions.act_window">
+        <field name="name">Property Tags</field>
+        <field name="res_model">estate.property.tag</field>
+        <field name="view_mode">list,form</field>
+    </record>
+    <record id="estate_property_tag_list" model="ir.ui.view">
+        <field name="name">estate.property.tag.list</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="name"/>
+            </list>
+        </field>
+    </record>
+    <record id="estate_property_tag_form" model="ir.ui.view">
+        <field name="name">estate.property.tag.form</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <group>
+                        <field name="name"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_type_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="estate_property_type_action" model="ir.actions.act_window">
+        <field name="name">Property Types</field>
+        <field name="res_model">estate.property.type</field>
+        <field name="view_mode">list,form</field>
+    </record>
+    <record id="estate_property_type_list" model="ir.ui.view">
+        <field name="name">estate.property.type.list</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="name"/>
+            </list>
+        </field>
+    </record>
+    <record id="estate_property_type_form" model="ir.ui.view">
+        <field name="name">estate.property.type.form</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <group>
+                        <field name="name"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>
+