[ADD] Real estate: Initial setup for module

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Real Estate",
+    "version": "1.9",
+    "depends": [
+        "base",
+    ],
+    "data": [
+        "views/estate_property_type_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_property_offers_list.xml",
+        "views/estate_property_views.xml",
+        "views/estate_menus.xml",
+        "security/ir.model.access.csv",
+    ],
+    "application": 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 date, datetime, time
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, _, exceptions, fields, models
+from odoo.orm.utils import ValidationError
+from odoo.tools import float_compare, float_is_zero
+
+
+class EstateProperty(models.Model):
+    _name = "realestate.properties"
+    _description = "Real estate properties"
+
+    active = fields.Boolean(default=True)
+    name = fields.Char("Plan Name", required=True, translate=True)
+    description = fields.Text("Notes")
+    postcode = fields.Char("Postcode", required=True)
+    date_availability = fields.Date(
+        "Availability date",
+        copy=False,
+        default=date.today() + relativedelta(months=3),
+    )
+    expected_price = fields.Float("Expected price", required=True)
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)",
+        _("The expected price should be strictly positive"),
+    )
+    selling_price = fields.Float(
+        "Selling price",
+        copy=False,
+        readonly=True,
+        compute="_compute_selling_price",
+    )
+    _check_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        _("The selling price should be strictly positive"),
+    )
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer received", "Offer Received"),
+            ("offer accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        required=True,
+        default="new",
+        copy=False,
+    )
+    bedrooms = fields.Integer("Bedrooms", default=2)
+    facades = fields.Integer("Facades")
+    garage = fields.Boolean("Garage")
+    garden = fields.Boolean("Garden")
+    living_area = fields.Integer("Living area (sqm)")
+    garden_area = fields.Integer("Garden area (sqm)")
+    total_area = fields.Integer("Total area (sqm)", compute="_compute_total_area")
+    garden_orientation = fields.Selection(
+        [
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+    )
+    best_offer = fields.Float("Best Offer", compute="_compute_best_price")
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    sale_rep_id = fields.Many2one(
+        "res.users",
+        string="Salesperson",
+        default=lambda self: self.env.user,
+    )
+    property_type_id = fields.Many2one("realestate.properties.type")
+    property_tag_ids = fields.Many2many("realestate.properties.tag", string="Tags")
+    offer_ids = fields.One2many(
+        "realestate.properties.offer",
+        "property_id",
+    )
+
+    @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:
+            record.best_offer = max(record.offer_ids.mapped("price"))
+
+    @api.depends("offer_ids")
+    def _compute_selling_price(self):
+        for record in self:
+            record.selling_price = max(
+                o.price if o.status == "accepted" else 0 for o 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 = 0
+            self.garden_orientation = None
+
+    def sold_action_btn(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise exceptions.UserError(_("Cancelled properties cannot be sold"))
+
+            record.state = "sold"
+
+    def cancelled_action_btn(self):
+        for record in self:
+            if record.state == "sold":
+                raise exceptions.UserError(_("Sold properties cannot be cancelled"))
+            record.state = "cancelled"
+
+    @api.constrains("expected_price", "selling_price")
+    def _check_offer_acceptable_price(self):
+        for record in self:
+            if (
+                record.state == "offer accepted"
+                and float_compare(record.selling_price, record.expected_price * 0.9, 3)
+                <= 0
+            ):
+                raise ValidationError(
+                    _(
+                        "The selling price should be greater than 90% of the expected price",
+                    ),
+                )

estate/models/estate_property_offer.py

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+from datetime import datetime, timedelta
+
+from odoo import api, _, exceptions, fields, models
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "realestate.properties.offer"
+    _description = "Real estate property offer"
+
+    price = fields.Float("Price", required=True)
+    _check_selling_price = models.Constraint(
+        "CHECK(price > 0)",
+        _("The price should be strictly positive"),
+    )
+
+    status = fields.Selection(
+        [("accepted", "Accepted"), ("refused", "Refused")],
+        copy=False,
+    )
+    validity = fields.Integer(
+        "Validaty (days)",
+        default=7,
+    )
+    date_deadline = fields.Date(
+        "Deadline",
+        compute="_computed_date_deadline",
+        inverse="_inverse_validity_period",
+        readonly=False,
+    )
+    partner_id = fields.Many2one("res.partner", required=True)
+    property_id = fields.Many2one("realestate.properties", required=True)
+
+    @api.depends("validity")
+    def _computed_date_deadline(self):
+        for offer in self:
+            create_date = offer.create_date if offer.create_date else datetime.today()
+            if offer.validity:
+                offer.date_deadline = create_date + timedelta(
+                    days=offer.validity,
+                )
+
+    def _inverse_validity_period(self):
+        for offer in self:
+            create_date = offer.create_date if offer.create_date else datetime.today()
+            offer.validity = (offer.date_deadline - create_date.date()).days
+
+    def action_confirm(self):
+        for offer in self:
+            if offer.property_id.buyer_id:
+                raise exceptions.UserError(_("One offer has already been accepted."))
+            offer.status = "accepted"
+            offer.property_id.state = "offer accepted"
+            offer.property_id.selling_price = offer.price
+            offer.property_id.buyer_id = offer.partner_id
+
+    def action_cancel(self):
+        for offer in self:
+            offer.status = "refused"
+            if offer.property_id.state == "offer accepted":
+                offer.property_id.state = "new"
+            offer.property_id.selling_price = 0
+            offer.property_id.buyer_id = None

estate/models/estate_property_tag.py

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+from odoo import _, fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "realestate.properties.tag"
+    _description = "Real estate property tag"
+
+    name = fields.Char("Name", required=True)
+    _unique_name = models.Constraint(
+        "UNIQUE(name)",
+        _("Tage name already exists. Tag names must be unique."),
+    )

estate/models/estate_property_type.py

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+from odoo import _, fields, models
+
+
+class EstatePropertyType(models.Model):
+    _name = "realestate.properties.type"
+    _description = "Real estate property type"
+
+    name = fields.Char("Property type", required=True)
+    _unique_name = models.Constraint(
+        "UNIQUE(name)",
+        _("Property name already exists. Property names must be unique."),
+    )

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
+estate.access_realestate_properties,access_realestate_properties,estate.model_realestate_properties,base.group_user,1,1,1,1
+estate.access_realestate_properties_type,access_realestate_properties_type,estate.model_realestate_properties_type,base.group_user,1,1,1,1
+estate.access_realestate_properties_tag,access_realestate_properties_tag,estate.model_realestate_properties_tag,base.group_user,1,1,1,1
+estate.access_realestate_properties_offer,access_realestate_properties_offer,estate.model_realestate_properties_offer,base.group_user,1,1,1,1

estate/views/estate_menus.xml

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+<odoo>
+    <menuitem id="estate_menu_root" name="Real estate">
+        <menuitem id="advertisements_menu" name="Advertisement">
+            <menuitem id="estate_advertisement_property_action_id"
+                action="estate_advertisement_property_action" />
+        </menuitem>
+        <menuitem id="settings_menu" name="Settings">
+            <menuitem id="estate_settings_property_type_action_id"
+                action="estate_settings_property_type_action" />
+            <menuitem id="estate_settings_property_tag_action_id"
+                action="estate_settings_property_tag_action" />
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offers_list.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!-- the root elements of the data file -->
+<odoo>
+    <record id="estate_property_offer_form" model="ir.ui.view">
+        <field name="name">realestate.property.form</field>
+        <field name="model">realestate.properties.offer</field>
+        <field name="arch" type="xml">
+            <form string="Custom description form">
+                <sheet>
+                    <group>
+                        <field name="price" />
+                        <field name="partner_id" />
+                        <field name="validity" />
+                        <field name="date_deadline" />
+                        <field name="status" />
+                    </group>
+                </sheet>
+            </form>
+        </field>
+
+    </record>
+    <record id="estate_property_type_views_list" model="ir.ui.view">
+        <field name="name">realestate.property.type.list</field>
+        <field name="model">realestate.properties.offer</field>
+        <field name="arch" type="xml">
+            <list string="Channel">
+                <field name="price" />
+                <field name="partner_id" />
+                <field name="validity" />
+                <field name="date_deadline" />
+                <button name="action_confirm" string="Confirm" type="object"
+                    icon="fa-check" />
+                <button name="action_cancel" string="Cancel" type="object"
+                    icon="fa-times" />
+                <field name="status" />
+            </list>
+        </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!-- the root elements of the data file -->
+<odoo>
+    <record id="estate_settings_property_tag_action" model="ir.actions.act_window">
+        <field name="name">Property Tags</field>
+        <field name="res_model">realestate.properties.tag</field>
+        <field name="view_mode">list,form</field>
+    </record>
+    <record id="estate_property_type_custom_view" model="ir.ui.view">
+        <field name="name">realestate.property.form</field>
+        <field name="model">realestate.properties.tag</field>
+        <field name="arch" type="xml">
+            <form string="Custom description form">
+                <sheet>
+                    <h1 class="oe_title mb32">
+                        <field name="name" />
+                    </h1>
+                </sheet>
+            </form>
+        </field>
+
+    </record>
+    <record id="estate_property_type_views_list" model="ir.ui.view">
+        <field name="name">realestate.property.type.list</field>
+        <field name="model">realestate.properties.tag</field>
+        <field name="arch" type="xml">
+            <list string="Channel">
+                <field name="name" />
+            </list>
+        </field>
+    </record>
+    <record id="estate_property_type_views_filter" model="ir.ui.view">
+        <field name="name">realestate.property.type.filter</field>
+        <field name="model">realestate.properties.tag</field>
+        <field name="arch" type="xml">
+            <search string="Filter string">
+                <field name="name" />
+                <filter string="Group by name" name="name"
+                    context="{'group_by': 'name'}" />
+            </search>
+        </field>
+    </record>
+
+</odoo>