[ADD] estate: created new module

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Real Estate',
+    'depends': ['base'],
+    'application': True,
+    'installable': True,
+    'author': 'Odoo S.A.',
+    'license': 'LGPL-3',
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_offer_views.xml',
+        'views/estate_property_views.xml',
+        'views/estate_property_type_views.xml',
+        'views/estate_property_tag_views.xml',
+        'views/estate_menus.xml'
+    ],
+
+}

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 dateutil.relativedelta import relativedelta
+
+from odoo import models, fields, api
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+
+    date_availability = fields.Date(
+        "Availability Date",
+        default=lambda self: fields.Date.today() + relativedelta(months=3),
+    )
+
+    expected_price = fields.Float("Expected Price", required=True)
+    selling_price = fields.Float("Selling Price", readonly=True)
+
+    bedrooms = fields.Integer(default=2)
+    living_area = fields.Integer("Living Area(sqft)")
+    facades = fields.Integer()
+    garage = fields.Boolean()
+
+    garden = fields.Boolean()
+    garden_area = fields.Integer("Garden Area(sqft)")
+    garden_orientation = fields.Selection(
+        [
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+        string="Garden Orientation",
+    )
+
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        "Status",
+        required=True,
+        copy=False,
+        default="new",
+    )
+
+    active = fields.Boolean(default=True)
+
+    property_type_id = fields.Many2one("estate.property.type", "Property Type")
+    buyer_id = fields.Many2one("res.partner", "Buyer", copy=False)
+    salesperson_id = fields.Many2one("res.users", string="Salesperson")
+
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+
+    offer_ids = fields.One2many(
+        "estate.property.offer",
+        "property_id",
+        string="Offers"
+    )
+
+    total_area = fields.Integer("Total Area(sqm)", compute="_compute_total_area")
+    best_price = fields.Float("Best Offer", compute="_compute_best_price")
+
+    _check_expected_price = models.Constraint(
+        'CHECK(expected_price > 0)',
+        'The expected price of a property must be strictly positive.',
+    )
+
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = (record.living_area or 0) + (record.garden_area or 0)
+
+    @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_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    def action_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("A sold property cannot be cancelled")
+            record.state = "cancelled"
+
+    def action_sold(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise UserError("A cancelled property cannot be set as sold")
+            record.state = "sold"
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for record in self:
+            if not float_is_zero(record.selling_price, precision_digits=2):
+                min_price = record.expected_price * 0.9
+                if float_compare(record.selling_price, min_price, precision_digits=2) < 0:
+                    raise ValidationError(
+                        "The selling price cannot be lower than 90% of the expected price."
+                    )
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_new_or_cancelled(self):
+        for record in self:
+            if record.state not in ("new", "cancelled"):
+                raise UserError("Only 'New' or 'Cancelled' property can be deleted.")

estate/models/estate_property_offer.py

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+from dateutil.relativedelta import relativedelta
+from odoo import fields, models, api
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        [("accepted", "Accepted"), ("refused", "Refused")],
+        copy=False,
+    )
+    partner_id = fields.Many2one("res.partner", required=True)
+    property_id = fields.Many2one("estate.property", required=True)
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(
+        string="Deadline Date",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline"
+    )
+
+    property_type_id = fields.Many2one(
+        related="property_id.property_type_id",
+        store=True
+    )
+
+    @api.depends('validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            creation_date = record.create_date or fields.Date.today()
+            record.date_deadline = creation_date + relativedelta(days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            creation_date = record.create_date or fields.Date.today()
+            record.validity = (record.date_deadline - creation_date).days
+
+    def action_accept(self):
+        for record in self:
+            if record.property_id.buyer_id:
+                raise UserError("Property already has an accepted offer.")
+
+            record.status = 'accepted'
+            record.property_id.selling_price = record.price
+            record.property_id.state = 'offer_accepted'
+            record.property_id.buyer_id = record.partner_id
+
+    def action_refuse(self):
+        self.status = 'refused'
+        return True
+
+    @api.model
+    def create(self, vals):
+        """
+        Handles:
+        > avoid search inside loop
+        > validate in bulk
+        > update property state
+        """
+
+        vals_list = vals if isinstance(vals, list) else [vals]
+
+        property_offer_map = {}
+        for v in vals_list:
+            pid = v.get("property_id")
+            if pid:
+                property_offer_map.setdefault(pid, []).append(v)
+
+        for pid, offers in property_offer_map.items():
+            prices = [o.get("price") for o in offers if o.get("price") is not None]
+
+            if prices:
+                max_new_price = max(prices)
+
+                existing_offers = self.search([
+                    ("property_id", "=", pid),
+                    ("price", ">=", max_new_price),
+                ], limit=1)
+
+                if existing_offers:
+                    raise UserError(
+                        "You cannot create an offer with a lower amount than an existing offer for this property."
+                    )
+
+        records = super().create(vals)
+
+        if isinstance(records, models.Model):     
+            for offer in records:
+                offer.property_id.state = "offer_received"
+
+        return records
+
+    _check_offer_price = models.Constraint(
+        'CHECK(price > 0)',
+        'The price of an offer must be strictly positive.'
+    )

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(required=True)
+    color = fields.Integer()
+
+    _check_tag_name_unique = models.Constraint(
+        'UNIQUE(name)', 
+        'The name of the property tag must be unique.'
+    )

estate/models/estate_property_type.py

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+from odoo import fields, models, api
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id", string="Properties")
+    sequence = fields.Integer("Sequence", default=1)
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id", string="Offers")
+    offer_count = fields.Integer(string="Offer Count", compute="_compute_offer_count")
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)
+
+    _check_type_name_unique = models.Constraint(
+        'UNIQUE(name)',
+        'The name of the property type 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_estate_property,access_estate_property,estate.model_estate_property,base.group_user,1,1,1,1
+estate.access_estate_property_type,access_estate_property_type,estate.model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag,estate.property.tag.access,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer,estate.property.offer.access,model_estate_property_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="menu_estate_advertisements"
+        name="Advertisements"
+        parent="estate_menu_root" />
+    <menuitem id="menu_estate_property_action"
+        name="Properties"
+        parent="menu_estate_advertisements"
+        action="action_estate_property" />
+    <menuitem id="menu_estate_settings"
+        name="Settings"
+        parent="estate_menu_root" />
+    <menuitem id="menu_estate_property_type_action_settings"
+        name="Property Types"
+        parent="menu_estate_settings"
+        action="estate_property_type_action" />
+    <menuitem id="menu_estate_property_tag_action_settings"
+        name="Property Tags"
+        parent="menu_estate_settings"
+        action="action_estate_property_tag" />
+</odoo>

estate/views/estate_property_offer_views.xml

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+<odoo>
+    <!-- Action -->
+    <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>
+
+    <!-- List View -->
+    <record id="estate_property_offer_list_view" 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 decoration-danger="status == 'refused'"
+                  decoration-success="status == 'accepted'"
+                  editable="bottom">
+
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="status"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
+                <field name="property_type_id"/>
+            </list>
+        </field>
+    </record>
+
+    <!-- Form View -->
+    <record id="estate_property_offer_form_view" 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"/>
+                        <field name="property_type_id"/>
+                    </group>
+                </sheet>
+
+                <footer>
+                    <button name="action_accept" type="object" string="Accept" class="btn-primary" />
+                    <button name="action_refuse" type="object" string="Refuse" class="btn-secondary" />
+                </footer>
+            </form>
+        </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tag_views.xml

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+<odoo>
+    <record id="action_estate_property_tag" 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_tree" 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 string="Property Tags" editable="top">
+            <field name="name"/>
+        </list>
+    </field>
+</record>
+</odoo>