[ADD] estate_property: added real estate module

.gitignore

@@ -127,3 +127,6 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+
+.vscode/

estate/.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "Odoo.selectedConfiguration": -1
+}

estate/__init__.py

@@ -0,0 +1 @@
+from . import models

estate/__manifest__.py

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+{
+    'name': 'Estate',
+    'version': '1.0',
+    'license': 'LGPL-3',
+    'summary': 'Real estate management module',
+    'description': 'Manage properties, owners, and sales in your real estate agency',
+    'category': 'Real Estate',
+    'author': 'ksoz',
+    'depends': ['base'],
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_offer_views.xml',
+        'views/estate_property_types_views.xml',
+        'views/estate_property_views.xml',
+        'views/estate_property_tags_views.xml',
+        "views/estate_res_users_views.xml",
+        'views/estate_menus.xml',
+    ],
+    'installable': True,
+    'application': True,
+}

estate/models/__init__.py

@@ -0,0 +1,5 @@
+from . import estate_property
+from . import estate_property_type
+from . import estate_property_tags
+from . import estate_property_offer
+from . import estate_res_users

estate/models/estate_property.py

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+from odoo import api, fields, models
+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(string="Description")
+    postcode = fields.Char(string="PostCode")
+    date_availability = fields.Date(
+        string="Available From",
+        copy=False,
+        default=lambda self: fields.Date.add(fields.Date.today(), months=3),
+    )
+    expected_price = fields.Float(required=True, string="Expected Price")
+    selling_price = fields.Float(string="Selling Price")
+    bedrooms = fields.Integer(string="Bedroom")
+    living_area = fields.Integer(string="Living Area")
+    facades = fields.Integer(string="Facades")
+    garage = fields.Boolean(string="Garage")
+    garden = fields.Boolean(string="Garden")
+    garden_area = fields.Integer(string="Garden Area")
+    garden_orientation = fields.Selection(
+        [("north", "North"), ("south", "South"), ("east", "East"), ("west", "West")],
+        string="Garden Orientation",
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        string="Status",
+        copy=False,
+        required=True,
+        default="new",
+    )
+    property_type_id = fields.Many2one("estate.property.type", string="Property Type")
+    seller_id = fields.Many2one(
+        "res.users", string="Salesman", default=lambda self: self.env.user
+    )
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+    total_area = fields.Integer(compute="_compute_total_area")
+    best_offer = fields.Float(compute="_compute_best_offer")
+
+    _sql_constraints = [
+        (
+            "expected_price",
+            "CHECK(expected_price >= 0)",
+            "The expected price 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 + record.garden_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_offer(self):
+        for record in self:
+            if record.offer_ids:
+                record.best_offer = max(record.offer_ids.mapped("price"))
+            else:
+                record.best_offer = 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
+
+    def action_on_sold(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise UserError("A cancelled property cannot be sold")
+            record.state = "sold"
+        return True
+
+    def action_on_cancelled(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("A sold property cannot be cancelled.")
+            record.state = "cancelled"
+        return True
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_digits=2):
+                continue
+
+            min_acceptable = record.expected_price * 0.9
+
+            if (
+                float_compare(record.selling_price, min_acceptable, precision_digits=2)
+                < 0
+            ):
+                raise ValidationError(
+                    "Selling price must be at least 90% of the expected price."
+                )
+
+    @api.ondelete(at_uninstall=False)
+    def _check_before_delete(self):
+        for record in self:
+            if record.state not in ('new', 'cancelled'):
+                raise UserError("You can only delete properties that are 'New' or 'Cancelled'.")

estate/models/estate_property_offer.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offers for estate property"
+    _order = "price desc"
+
+    price = fields.Float()
+    partner_id = fields.Many2one("res.partner", string="Partner", required=True)
+    property_id = fields.Many2one("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",
+    )
+    status = fields.Selection(
+        selection=[("accepted", "Accepted"), ("refused", "Refused")], string="Status", copy=False,
+    )
+    property_type_id = fields.Many2one(
+        'estate.property.type', related='property_id.property_type_id', string="Property Type", store=True
+    )
+
+    _sql_constraints = [
+        (
+            "check_offer_price_positive",
+            "CHECK(price > 0)",
+            "Offer price must be strictly positive.",
+        ),
+    ]
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            start_date = record.create_date or fields.Date.context_today(record)
+            record.date_deadline = fields.Date.add(start_date, days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            start_date = record.create_date or fields.Date.context_today(record)
+            if record.date_deadline:
+                delta = record.date_deadline - start_date.date()
+                record.validity = delta.days
+            else:
+                record.validity = 0
+
+    def action_on_accepted(self):
+        for offer in self:
+            accepted_offers = offer.property_id.offer_ids.filtered(
+                lambda o: o.status == "accepted"
+            )
+            if accepted_offers:
+                raise UserError("An offer has already been accepted for this property.")
+
+            offer.status = "accepted"
+            offer.property_id.selling_price = offer.price
+            offer.property_id.buyer_id = offer.partner_id
+            offer.property_id.state = "offer_accepted"
+        return True
+
+    def action_on_refused(self):
+        for offer in self:
+            offer.status = "refused"
+        return True
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            prop = self.env['estate.property'].browse(vals.get('property_id'))
+
+            if prop.offer_ids:
+                max_prop = max(prop.offer_ids.mapped('price'))
+                if vals['price'] < max_prop:
+                    raise UserError(f"The offer price must be higher than the current best offer of {max_prop}.")
+
+            prop.state = 'offer_received'
+
+        return super().create(vals_list)

estate/models/estate_property_tags.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Tags For Estate Properties"
+    _order = "name"
+
+    name = fields.Char(required=True, string="Tag")
+    color = fields.Integer('Color')
+
+    _sql_constraints = [
+        ("unique_tag_name", "UNIQUE(name)", "Tag name must be unique."),
+    ]

estate/models/estate_property_type.py

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+from odoo import fields, models
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Types of Real Estate Properties"
+    _order = "sequence,name"
+
+    name = fields.Char(required=True, string="Property Type")
+    property_ids = fields.One2many(
+        "estate.property", "property_type_id", string="Properties"
+    )
+    sequence = fields.Integer("Sequence")
+    offer_ids = fields.One2many(
+    "estate.property.offer", "property_type_id", string="Offers"
+)
+    offer_count = fields.Integer(string="Offers Count", compute="_compute_offer_count")
+
+    _sql_constraints = [
+        ("unique_type_name", "UNIQUE(name)", "Property type name must be unique."),
+    ]
+
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/estate_res_users.py

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+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        'estate.property', 'seller_id', string="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_property,access_estate_property,model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type,estate.property.type,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag,estate.property.tag,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer,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" />
+
+    <menuitem id="estate_menu_first_level" name="Properties" parent="estate_menu_root" />
+    <menuitem id="estate_menu_property_action" action="action_estate_property"
+        parent="estate_menu_first_level" />
+
+    <menuitem
+        id="estate_menu_settings"
+        name="Settings"
+        parent="estate_menu_root"/>
+
+    <menuitem
+        id="estate_menu_property_type_action"
+        name="Property Types"
+        action="action_estate_property_type"
+        parent="estate_menu_settings" />
+
+    <menuitem 
+        id="estate_menu_property_tag_action"
+        name="Property Tags"
+        action="action_estate_property_tag"
+        parent="estate_menu_settings"
+    />
+</odoo>

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_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 string="Offers" editable="bottom" decoration-danger="status == 'refused'"
+                decoration-success="status == 'accepted'">
+                <field name="price" />
+                <field name="partner_id" />
+                <field name="status" />
+                <field name="date_deadline" />
+                <field name="validity" />
+                <button name="action_on_accepted" type="object" icon="fa-check"
+                    title="Accept Offer" invisible="status in ('accepted','refused')" />
+                <button name="action_on_refused" type="object" icon="fa-times"
+                    title="Refuse Offer" invisible="status in ('accepted','refused')" />
+            </list>
+        </field>
+    </record>
+
+    <record id="view_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 string="Offer">
+                <sheet>
+                    <group>
+                        <field name="price" />
+                        <field name="partner_id" />
+                        <field name="status" />
+                        <field name="validity" />
+                        <field name="date_deadline" />
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="action_estate_property_offer" model="ir.actions.act_window">
+        <field name="name">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>
+</odoo>