chean - Technical Onboarding

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,
+    "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_menus.xml",
+        "views/res_users_views.xml",
+    ],
+}

estate/models/__init__.py

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+from . import estate_property_tag
+from . import estate_property_offer
+from . import estate_property_type
+from . import estate_property
+from . import res_user

estate/models/estate_property.py

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+from dateutil.relativedelta import relativedelta
+
+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 = "Estate Property"
+    _order = "id desc"
+
+    name = fields.Char(string="Title", required=True)
+    active = fields.Boolean(default=True)
+    description = fields.Text()
+    postcode = fields.Char(string="Postcode")
+    date_availability = fields.Date(
+        string="Available From",
+        copy=False,
+        default=lambda self: fields.Date.today() + relativedelta(months=3),
+    )
+    expected_price = fields.Float(string="Expected Price", required=True)
+    selling_price = fields.Float(
+        string="Selling Price",
+        readonly=True,
+        copy=False,
+    )
+    bedrooms = fields.Integer(string="Bedrooms", default=2)
+    living_area = fields.Integer(string="Living Area (sqm)")
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer()
+    garden_orientation = fields.Selection(
+        string="Garden Orientation",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+    )
+    state = fields.Selection(
+        string="State",
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("canceled", "Canceled"),
+        ],
+        required=True,
+        copy=False,
+        default="new",
+    )
+    property_type_id = fields.Many2one(
+        comodel_name="estate.property.type",
+        string="Property Type",
+    )
+    salesman_id = fields.Many2one(
+        comodel_name="res.users",
+        string="Salesman",
+        default=lambda self: self.env.user,
+    )
+    buyer_id = fields.Many2one(
+        comodel_name="res.partner",
+        string="Buyer",
+        readonly=True,
+        copy=False,
+    )
+    tag_ids = fields.Many2many(
+        comodel_name="estate.property.tag",
+        string="Tags",
+    )
+    offer_ids = fields.One2many(
+        comodel_name="estate.property.offer",
+        inverse_name="property_id",
+        string="Offers",
+    )
+    total_area = fields.Integer(
+        string="Total Area (sqm)",
+        compute="_compute_total_area",
+    )
+    best_price = fields.Float(
+        string="Best Offer",
+        compute="_compute_best_price",
+    )
+
+    _check_expected_price_positive = models.Constraint(
+        "CHECK(expected_price > 0)",
+        "A property expected price should be strictly positive.",
+    )
+    _check_selling_price_positive = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        "A property selling price should be positive.",
+    )
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self):
+        for property_ in self:
+            property_.total_area = property_.living_area + property_.garden_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for property_ in self:
+            property_.best_price = max(property_.offer_ids.mapped("price"), default=0.0)
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for property_ in self:
+            if float_is_zero(property_.selling_price, precision_digits=2):
+                continue
+
+            minimum_price = property_.expected_price * 0.9
+            if (
+                float_compare(
+                    property_.selling_price,
+                    minimum_price,
+                    precision_digits=2,
+                )
+                < 0
+            ):
+                raise ValidationError(
+                    self.env._(
+                        "The selling price must be at least 90%% of the expected "
+                        "price. You must reduce the expected price if you want to "
+                        "accept this offer."
+                    )
+                )
+
+    @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
+
+    @api.ondelete(at_uninstall=False)
+    def _prevent_unlink_not_new_or_canceled(self):
+        for property_ in self:
+            if property_.state not in ("new", "canceled"):
+                raise UserError(
+                    self.env._("Only new or canceled properties can be deleted.")
+                )
+
+    def action_sold(self):
+        self.ensure_one()
+
+        if self.state == "canceled":
+            raise UserError(self.env._("Canceled properties cannot be sold."))
+
+        self.state = "sold"
+        return True
+
+    def action_cancel(self):
+        self.ensure_one()
+
+        if self.state == "sold":
+            raise UserError(self.env._("Sold properties cannot be canceled."))
+
+        self.state = "canceled"
+        return True

estate/models/estate_property_offer.py

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+from datetime import timedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float(string="Price")
+    validity = fields.Integer(string="Validity", default=7)
+    date_deadline = fields.Date(
+        string="Deadline Date",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+    )
+    status = fields.Selection(
+        string="Status",
+        selection=[
+            ("accepted", "Accepted"),
+            ("refused", "Refused"),
+        ],
+        copy=False,
+    )
+    partner_id = fields.Many2one(
+        comodel_name="res.partner",
+        string="Partner",
+        required=True,
+    )
+    property_id = fields.Many2one(
+        comodel_name="estate.property",
+        string="Property",
+        required=True,
+    )
+    property_type_id = fields.Many2one(
+        string="Property Type",
+        related="property_id.property_type_id",
+        store=True,
+    )
+
+    _check_price_positive = models.Constraint(
+        "CHECK(price > 0)",
+        "An offer price should be strictly positive.",
+    )
+
+    @api.depends("create_date", "validity")
+    def _compute_date_deadline(self):
+        for offer in self:
+            create_date = offer.create_date or fields.Datetime.now()
+            offer.date_deadline = create_date.date() + timedelta(days=offer.validity)
+
+    def _inverse_date_deadline(self):
+        for offer in self:
+            create_date = offer.create_date or fields.Datetime.now()
+            offer.validity = (offer.date_deadline - create_date.date()).days
+
+    @api.model
+    def create(self, vals_list):
+        properties = self.env["estate.property"].browse(
+            [vals["property_id"] for vals in vals_list]
+        )
+
+        for vals in vals_list:
+            property = properties.browse(vals["property_id"])
+
+            if property.state == "sold":
+                raise UserError(
+                    self.env._("You can't create an offer for a sold property.")
+                )
+
+            if vals["price"] < property.best_price:
+                raise UserError(
+                    self.env._(
+                        "You can't create an offer with a lower amount than an "
+                        "existing offer."
+                    )
+                )
+
+            property.state = "offer_received"
+
+        return super().create(vals_list)
+
+    def action_accept_offer(self):
+        self.ensure_one()
+
+        if self.status == "accepted":
+            raise UserError(self.env._("You already accepted the offer."))
+
+        if self.property_id.buyer_id:
+            raise UserError(self.env._("Only one offer can be accepted."))
+
+        self.status = "accepted"
+        self.property_id.selling_price = self.price
+        self.property_id.buyer_id = self.partner_id
+        self.property_id.state = "offer_accepted"
+        self.property_id.offer_ids.filtered(lambda offer: offer != self).status = (
+            "refused"
+        )
+
+        return True
+
+    def action_refuse_offer(self):
+        self.ensure_one()
+
+        if self.status == "accepted":
+            raise UserError(
+                self.env._("You cannot refuse an offer once it has been accepted.")
+            )
+
+        self.status = "refused"
+        return True

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer(string="Color")
+
+    _check_unique_name = models.Constraint(
+        "UNIQUE(name)",
+        "A property tag name should 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 = "Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer()
+    property_ids = fields.One2many(
+        comodel_name="estate.property",
+        inverse_name="property_type_id",
+        string="Properties",
+    )
+    offer_ids = fields.One2many(
+        comodel_name="estate.property.offer",
+        inverse_name="property_type_id",
+        string="Offers",
+    )
+    offer_count = fields.Integer(compute="_compute_offer_count")
+
+    _check_unique_name = models.Constraint(
+        "UNIQUE(name)",
+        "A property type name should be unique.",
+    )
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for property_type in self:
+            property_type.offer_count = len(property_type.offer_ids)

estate/models/res_user.py

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

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,access_estate_property_type,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag,access_estate_property_tag,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer,access_estate_property_offer,model_estate_property_offer,base.group_user,1,1,1,1