[ADD] real_estate: add complete real estate management module

estate_account/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

estate_account/__manifest__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+{
+    "name": "Estate Account",
+    "version": "1.0",
+    "depends": ["real_estate", "account"],
+    "category": "Accounts for Estate",
+    "license": "LGPL-3",
+    "installable": True,
+    "application": True,
+}

estate_account/models/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import estate_property

estate_account/models/estate_property.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import Command, models
+
+
+class Property(models.Model):
+    _inherit = "estate.property"
+
+    def action_sold(self):
+        for property in self:
+            journal = self.env["account.journal"].search(
+                [("type", "=", "sale")], limit=1
+            )
+
+            commission = property.selling_price * 0.06
+            discount = property.selling_price * 0.05
+            invoice_lines = [
+                Command.create(
+                    {
+                        "name": "6% Commission",
+                        "quantity": 1,
+                        "price_unit": commission,
+                    }
+                ),
+                Command.create(
+                    {
+                        "name": "Administrative Fees",
+                        "quantity": 1,
+                        "price_unit": 100.00,
+                    }
+                ),
+                Command.create(
+                    {
+                        "name": "Discount",
+                        "quantity": 1,
+                        "price_unit": -discount,
+                    }
+                ),
+            ]
+
+            invoice_vals = {
+                "partner_id": property.buyer_id.id,
+                "move_type": "out_invoice",
+                "journal_id": journal.id,
+                "invoice_line_ids": invoice_lines,
+            }
+
+            self.env["account.move"].create(invoice_vals)
+
+        return super().action_sold()

real_estate/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

real_estate/__manifest__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+{
+    "name": "Dream Homes",
+    "version": "1.0",
+    "depends": ["base"],
+    "category": "Real Estate/Brokerage",
+    "data": [
+        "security/ir.model.access.csv",
+        "views/estate_property_views.xml",
+        "views/estate_property_offer_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_property_menus.xml",
+        "views/res_users_views.xml",
+    ],
+    "license": "LGPL-3",
+    "installable": True,
+    "application": True,
+}

real_estate/models/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import estate_property
+from . import estate_property_offers
+from . import estate_property_tags
+from . import estate_property_types
+from . import res_users

real_estate/models/estate_property.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, fields, models
+from dateutil.relativedelta import relativedelta
+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 = "This is a real estate module"
+    _order = "id desc"
+
+    name = fields.Char(string="Property Name", required=True)
+    description = fields.Text(string="Description")
+    postcode = fields.Char(string="Postcode")
+    expected_price = fields.Float(string="Expected Price", required=True)
+    selling_price = fields.Float(string="Selling Price", readonly=True, copy=False)
+    bedrooms = fields.Integer(string="Total Bedrooms", default=2)
+    living_area = fields.Integer(string="Living Area (sqm)")
+    facades = fields.Integer(string="Facades")
+    garage = fields.Boolean(string="Garage")
+    garden = fields.Boolean(string="Garden")
+    garden_area = fields.Integer(string="Garden Area (sqm)")
+    active = fields.Boolean(string="Is Active", default=True)
+    buyer_id = fields.Many2one(comodel_name="res.partner", string="Buyer", copy=False)
+    total_area = fields.Float(compute="_compute_total_area", string="Total Area")
+    best_offer = fields.Float(compute="_compute_best_price", string="Best Offer")
+    date_availability = fields.Date(
+        string="Availability From",
+        default=lambda self: fields.Date.today() + relativedelta(months=3),
+        copy=False,
+    )
+    estate_property_offer_ids = fields.One2many(
+        comodel_name="estate.property.offers",
+        inverse_name="property_id",
+        string="Offers",
+    )
+    seller_id = fields.Many2one(
+        comodel_name="res.users",
+        string="SalesPerson",
+        default=lambda self: self.env.user,
+    )
+    estate_property_type_id = fields.Many2one(
+        comodel_name="estate.property.types", string="Property Type"
+    )
+    estate_property_tag_ids = fields.Many2many(
+        comodel_name="estate.property.tags", string="Tags"
+    )
+    garden_orientation = fields.Selection(
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+        string="Garden Orientation",
+    )
+    state = fields.Selection(
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        copy=False,
+        required=True,
+        default="new",
+        string="State",
+    )
+    _sql_constraints = [
+        (
+            "check_expected_price_positive",
+            "CHECK(expected_price > 0)",
+            "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("estate_property_offer_ids")
+    def _compute_best_price(self):
+        for record in self:
+            prices = record.estate_property_offer_ids.mapped("price")
+            record.best_offer = 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
+
+    def action_sold(self):
+        for record in self:
+            if not record.state == "offer_accepted":
+                raise UserError("Accept an offer first")
+            if record.state == "cancelled":
+                raise UserError("You cannot mark a cancelled property as sold.")
+            record.state = "sold"
+
+    def action_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("You cannot mark a sold property as cancelled.")
+            record.state = "cancelled"
+
+    @api.constrains("expected_price", "selling_price")
+    def _check_selling_price(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_digits=2):
+                continue
+            min_price = record.expected_price * 0.9
+            if float_compare(record.selling_price, min_price, precision_digits=2) < 0:
+                raise ValidationError(
+                    "Selling price must be at least 90% of the expected price."
+                )
+
+    @api.ondelete(at_uninstall=False)
+    def _check_deletion_state(self):
+        for rec in self:
+            if rec.state not in ["new", "cancelled"]:
+                raise UserError(
+                    "Only properties in 'New' or 'Cancelled' state can be deleted."
+                )

real_estate/models/estate_property_offers.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffers(models.Model):
+    _name = "estate.property.offers"
+    _description = "Estate Property Offers"
+    _order = "price desc"
+
+    price = fields.Float()
+    partner_id = fields.Many2one(comodel_name="res.partner", required=True)
+    property_id = fields.Many2one(comodel_name="estate.property", required=True)
+    validity = fields.Integer(default="7")
+    property_type_id = fields.Many2one(
+        related="property_id.estate_property_type_id", store=True
+    )
+
+    offer_deadline = fields.Date(
+        compute="_compute_date_deadline", inverse="_inverse_date_deadline"
+    )
+    status = fields.Selection(
+        selection=[("accepted", "Accepted"), ("refused", "Refused")]
+    )
+
+    @api.depends("create_date", "validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            if record.create_date and record.validity:
+                record.offer_deadline = fields.Date.add(
+                    record.create_date, days=record.validity
+                )
+            else:
+                record.offer_deadline = fields.Date.add(
+                    fields.Date.today(), days=record.validity
+                )
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            if record.create_date and record.offer_deadline:
+                record.validity = (
+                    record.offer_deadline - fields.Date.to_date(record.create_date)
+                ).days
+
+    def action_accept_offer(self):
+        for offer in self:
+            accepted_offer = self.env["estate.property.offers"].search(
+                [
+                    ("property_id", "=", offer.property_id.id),
+                    ("status", "=", "accepted"),
+                ]
+            )
+            if accepted_offer:
+                raise UserError("Only one offer can be accepted per 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"
+
+    def action_refuse_offer(self):
+        for offer in self:
+            offer.status = "refused"
+
+    _sql_constraints = [
+        (
+            "check_offer_price_positive",
+            "CHECK(price > 0)",
+            "Offer price must be strictly positive.",
+        )
+    ]
+
+    @api.model_create_multi
+    def create(self, vals):
+        for val in vals:
+            property_id = self.env["estate.property"].browse(val["property_id"])
+
+            if property_id.state == "new":
+                property_id.state = "offer_received"
+
+            if val["price"] <= property_id.best_offer:
+                raise UserError(
+                    f"The offer must be higher than {property_id.best_offer}"
+                )
+
+        return super().create(vals)

real_estate/models/estate_property_tags.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import models, fields
+
+
+class EstatePropertyTags(models.Model):
+    _name = "estate.property.tags"
+    _description = "Estate Property Tags"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    _sql_constraints = [
+        (
+            "unique_tag_name",
+            "UNIQUE(name)",
+            "This property tag already exits, create a unique one.",
+        )
+    ]

real_estate/models/estate_property_types.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, fields, models
+
+
+class EstatePropertyTypes(models.Model):
+    _name = "estate.property.types"
+    _description = "Estate Property Types"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer(default=1)
+    offer_ids = fields.One2many(comodel_name="estate.property.offers", inverse_name="property_type_id")
+    offer_count = fields.Integer(string="Number of Offers", compute="_compute_offer_count")
+    property_ids = fields.One2many("estate.property", "estate_property_type_id", string="Properties")
+
+    _sql_constraints = [
+        (
+            "unique_type_name",
+            "UNIQUE(name)",
+            "This property type already exits, create a unique one.",
+        )
+    ]
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

real_estate/models/res_users.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        comodel_name="estate.property",
+        inverse_name="seller_id",
+        domain="[('state', 'in', ('new','offer_received'))]",
+    )

real_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
+real_estate.access_estate_property,access_estate_property,real_estate.model_estate_property,base.group_user,1,1,1,1
+real_estate.access_estate_property_types,access_estate_property_types,real_estate.model_estate_property_types,base.group_user,1,1,1,1
+real_estate.access_estate_property_tags,access_estate_property_tags,real_estate.model_estate_property_tags,base.group_user,1,1,1,1
+real_estate.access_estate_property_offers,access_estate_property_offers,real_estate.model_estate_property_offers,base.group_user,1,1,1,1