[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",
+    "author": "odoo",
+    "depends": [
+        "base",
+    ],
+    "data": [
+        "views/estate_property_offer_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_property_views.xml",
+        "views/user_properties_views.xml",
+        "views/estate_menus.xml",
+        "security/ir.model.access.csv",
+    ],
+    "application": True,
+    "license": "LGPL-3",
+}

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
+from . import user_properties

estate/models/estate_property.py

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+from odoo import api, _, exceptions, fields, models
+from odoo.orm.utils import ValidationError
+from odoo.tools import float_compare
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real estate properties"
+    _order = "id desc"
+
+    active = fields.Boolean(default=True)
+    name = fields.Char("Title", required=True)
+    description = fields.Text("Notes")
+    postcode = fields.Char("Postcode", required=True)
+    date_availability = fields.Date(
+        "Availability date",
+        copy=False,
+        default=lambda _: fields.Date.add(fields.Date.today(), months=3),
+    )
+    expected_price = fields.Float("Expected Price", required=True)
+    selling_price = fields.Float(
+        "Selling price",
+        copy=False,
+        readonly=True,
+    )
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        default="new",
+        required=True,
+        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("estate.property.type")
+    property_tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many(
+        "estate.property.offer",
+        "property_id",
+    )
+
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)",
+        _("The expected price should be strictly positive"),
+    )
+
+    _check_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        _("The selling price should be strictly positive"),
+    )
+
+    @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_offer = max(prices, default=0)
+
+    @api.onchange("offer_ids")
+    def _onchange_offer(self):
+        for record in self:
+            # in case of a delete
+            if len(record.offer_ids) == 0:
+                record.state = "new"
+
+    @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
+
+    @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.",
+                    ),
+                )
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_except_state_is_new_or_cancelled(self):
+        for record in self:
+            if record.state in ("new", "cancelled"):
+                raise exceptions.UserError(
+                    _("Property that is either new or cancelled, can't be deleted."),
+                )
+
+    def action_sold_btn(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise exceptions.UserError(_("Cancelled properties cannot be sold."))
+            record.state = "sold"
+
+    def action_cancelled_btn(self):
+        for record in self:
+            if record.state == "sold":
+                raise exceptions.UserError(_("Sold properties cannot be cancelled."))
+            record.state = "cancelled"

estate/models/estate_property_offer.py

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+from odoo import api, _, exceptions, fields, models
+from odoo.tools import float_compare
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real estate property offer"
+    _order = "price desc"
+
+    price = fields.Float("Price", required=True)
+    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("estate.property", required=True)
+    property_type_id = fields.Many2one(
+        "estate.property.type",
+        related="property_id.property_type_id",
+        store=True,
+    )
+
+    _check_selling_price = models.Constraint(
+        "CHECK(price > 0)",
+        _("The price should be strictly positive"),
+    )
+
+    @api.depends("create_date", "validity")
+    def _computed_date_deadline(self):
+        for offer in self:
+            create_date = fields.Date.to_date(offer.create_date) or fields.Date.today()
+            if offer.validity:
+                offer.date_deadline = fields.Date.add(
+                    create_date,
+                    days=offer.validity,
+                )
+
+    def _inverse_validity_period(self):
+        for offer in self:
+            create_date = fields.Date.to_date(offer.create_date) or fields.Date.today()
+            offer.validity = (offer.date_deadline - create_date).days
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            if vals.get("property_id"):
+                property_record = self.env["estate.property"].browse(
+                    vals["property_id"],
+                )
+                offer_price = vals.get("price", 0.0)
+                if (
+                    property_record.best_offer
+                    and float_compare(offer_price, property_record.best_offer, 2) < 0
+                ):
+                    raise exceptions.UserError(
+                        _("New offer should be better than current best offer (%.2f).")
+                        % property_record.best_offer,
+                    )
+                if property_record.state == "new":
+                    property_record.state = "offer_received"
+        return super().create(vals_list)
+
+    def action_accept(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_refuse(self):
+        for offer in self:
+            offer.status = "refused"
+            if offer.property_id.state == "offer_received" and any(
+                s != "refused" for s in offer.mapped("status")
+            ):
+                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 = "estate.property.tag"
+    _description = "Real estate property tag"
+    _order = "name"
+
+    name = fields.Char("Name", required=True)
+    color = fields.Integer()
+
+    _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 _, api, fields, models
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real estate property type"
+    _order = "sequence, name"
+
+    name = fields.Char("Property type", required=True)
+    sequence = fields.Integer("Sequence")
+    offer_count = fields.Integer("Offers", compute="_compute_offers_count")
+    property_list_id = fields.One2many("estate.property", "property_type_id")
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+
+    _unique_name = models.Constraint(
+        "UNIQUE(name)",
+        _("Property name already exists. Property names must be unique."),
+    )
+
+    @api.depends("offer_ids")
+    def _compute_offers_count(self):
+        for offer in self:
+            offer.offer_count = len(offer.offer_ids)

estate/models/user_properties.py

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+from odoo import fields, models
+
+
+class UserProperties(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        comodel_name="estate.property",
+        inverse_name="sale_rep_id",
+        string="Estate Properties",
+        domain=[
+            (
+                "state",
+                "in",
+                ["new", "offer_received"],
+            ),
+        ],
+    )

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_properties,estate.property,model_estate_property,base.group_user,1,1,1,1
+access_estate_properties_type,estate.property.type,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_properties_tag,estate.property_tag,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_properties_offer,estate.property.offer,model_estate_property_offer,base.group_user,1,1,1,1
+access_estate_res_users,estate.res.users,model_res_users,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="advertisement_menu" name="Advertisement">
+            <menuitem id="estate_property_menu_action"
+                action="estate_property_action" />
+        </menuitem>
+        <menuitem id="settings_menu" name="Settings">
+            <menuitem id="estate_property_type_menu_action"
+                action="estate_property_type_action" />
+            <menuitem id="estate_property_tag_menu_action"
+                action="estate_property_tag_action" />
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="estate_property_offer_action" model="ir.actions.act_window">
+        <field name="name">Property Offers</field>
+        <field name="res_model">estate.property.offer</field>
+        <field name="view_mode">list,form</field>
+        <field name="domain">[('property_type_id', '=', active_id)]</field>
+    </record>
+
+    <record id="estate_property_offer_view_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 string="Custom description form">
+                <sheet>
+                    <group>
+                        <field name="price" />
+                        <field name="partner_id" />
+                        <field name="validity" />
+                        <field name="date_deadline" />
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="estate_property_offer_view_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 string="Channel" editable="bottom" decoration-danger="status == 'refused'"
+                decoration-success="status == 'accepted'">
+                <field name="price" />
+                <field name="partner_id" />
+                <field name="validity" />
+                <field name="date_deadline" />
+                <button name="action_accept" string="Accept" type="object"
+                    icon="fa-check" invisible="status in ('accepted', 'refused')" />
+                <button name="action_refuse" string="Refuse" type="object"
+                    icon="fa-times" invisible="status in ('accepted', 'refused')" />
+            </list>
+        </field>
+    </record>
+
+</odoo>