valvi - technical training

estate/__init__.py

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

estate/__manifest__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+{
+    "name": "estate",
+    "application": True,
+    "depends": [
+        "base",
+    ],
+    "data": [
+        "security/ir.model.access.csv",
+        "views/estate_property_views.xml",
+        "views/estate_offer_views.xml",
+        "views/estate_type_views.xml",
+        "views/estate_tag_views.xml",
+        "views/estate_menus.xml",
+        "views/res_user.xml",
+    ],
+    "author": "Odoo S.A.",
+    "license": "LGPL-3",
+}

estate/models/__init__.py

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+from . import estate_property
+from . import estate_type
+from . import estate_tag
+from . import estate_offer
+from . import res_user

estate/models/estate_offer.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.date_utils import add
+from odoo.tools.float_utils import float_compare
+
+
+class EstateOffer(models.Model):
+    _name = "estate.offer"
+    _description = "An estate offer"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        [("accepted", "Accepted"), ("refused", "Refused")], copy=False
+    )
+    validity = fields.Integer(default=7)
+
+    # Foreign fields
+    partner_id = fields.Many2one("res.partner", required=True)
+    property_id = fields.Many2one("estate.property", required=True)
+
+    # Computed fields
+    date_deadline = fields.Date(
+        compute="_compute_date_deadline", inverse="_inverse_date_deadline"
+    )
+
+    # Related fields
+    property_type_id = fields.Many2one(
+        related="property_id.property_type_id", store=True
+    )
+
+    # Constraints
+    _check_price = models.Constraint(
+        "CHECK(price > 0)",
+        "Offer price must be stricly positive",
+    )
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = add(
+                record.create_date if record.create_date else fields.Date.today(),
+                days=+record.validity,
+            )
+
+    @api.onchange("date_deadline")
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (record.date_deadline - fields.Date.today()).days
+
+    # Actions
+
+    def action_status_accepted(self):
+        self.ensure_one()
+
+        if self.status in ("accepted", "refused"):
+            raise UserError("The state of an offer cannot be changed once it is set")
+
+        if float_compare(self.price, self.property_id.expected_price * 0.9, 2) == -1:
+            raise ValidationError("Offer has to be at least 90% of the expected price")
+
+        if any(
+            self.property_id.offer_ids.filtered(
+                lambda offer: offer.status == "accepted"
+            )
+        ):
+            raise UserError("Only one offer can be accepted")
+
+        self.property_id.state = "accepted"
+        self.status = "accepted"
+
+        for offer in self.property_id.offer_ids:
+            if offer.id == self.id:
+                continue
+
+            offer.status = "refused"
+
+        return True
+
+    def action_status_refused(self):
+        self.ensure_one()
+
+        if self.status in ["accepted", "refused"]:
+            raise UserError("The state of an offer cannot be changed once it is set")
+
+        self.status = "refused"
+        return True
+
+    # Overwrites
+
+    @api.model
+    def create(self, vals_list):
+        for vals in vals_list:
+            property = self.env["estate.property"].browse(vals["property_id"])
+            if property.state == "sold":
+                raise UserError("No offer can be made for a sold property")
+
+            if property.state == "new":
+                property.state = "received"
+
+        return super().create(vals_list)

estate/models/estate_property.py

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+from odoo import fields, models
+from odoo.exceptions import UserError, ValidationError
+from odoo.orm.models import api
+from odoo.tools.date_utils import add
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "An estate property"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        copy=False, default=lambda _: add(fields.Date.today(), months=+3)
+    )
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(
+        copy=False, readonly=True, compute="_compute_selling_price"
+    )
+    bedrooms = fields.Integer(default=2)
+    living_area = fields.Integer()
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer()
+    garden_orientation = fields.Selection(
+        [("north", "North"), ("south", "South"), ("east", "East"), ("west", "West")]
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("received", "Offer Received"),
+            ("accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        required=True,
+        copy=False,
+        default="new",
+    )
+
+    # Foreign fields
+    property_type_id = fields.Many2one(
+        "estate.type", required=True, ondelete="restrict"
+    )
+    buyer_id = fields.Many2one(
+        "res.partner",
+        required=False,
+        copy=False,
+        ondelete="restrict",
+        compute="_compute_buyer_id",
+    )
+    seller_id = fields.Many2one(
+        "res.users",
+        required=True,
+        default=lambda self: self.env.user,
+        ondelete="restrict",
+    )
+    tag_ids = fields.Many2many("estate.tag")
+    offer_ids = fields.One2many("estate.offer", "property_id")
+
+    # Computed fields
+    total_area = fields.Integer(compute="_compute_total_area")
+    best_price = fields.Integer(compute="_compute_best_price")
+
+    # Constraints
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)",
+        "Expected price must be stricly positive",
+    )
+
+    # Computations
+    @api.depends("offer_ids.status")
+    def _compute_selling_price(self):
+        for record in self:
+            record.selling_price = 0
+            for offer in record.offer_ids:
+                if offer.status == "accepted":
+                    record.selling_price = offer.price
+                    break
+
+    @api.depends("offer_ids.status")
+    def _compute_buyer_id(self):
+        for record in self:
+            record.buyer_id = None
+            for offer in record.offer_ids:
+                if offer.status == "accepted":
+                    record.buyer_id = offer.partner_id
+                    break
+
+    @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:
+            # Fallback to 0 if no records are present
+            record.best_price = max(record.offer_ids.mapped("price") or [0])
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        self.ensure_one()
+
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    # Actions
+
+    def action_state_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("A sold property cannot be cancelled")
+            if record.state == "cancelled":
+                raise UserError("A cancelled property cannot be cancelled again")
+
+            record.state = "cancelled"
+        return True
+
+    def action_state_sold(self):
+        for record in self:
+            accepted_offer = False
+            for offer in record.offer_ids:
+                if offer.status == "accepted":
+                    accepted_offer = True
+                    break
+
+            if not accepted_offer:
+                raise UserError("A property cannot be sold if no offer is accepted")
+
+            if record.state == "cancelled":
+                raise UserError("A cancelled property cannot be sold")
+            if record.state == "sold":
+                raise UserError("A sold property cannot be sold again")
+
+            record.state = "sold"
+        return True
+
+    # Overwrites
+
+    @api.ondelete(at_uninstall=False)
+    def onDelete(self):
+        for record in self:
+            if record.state not in ["new", "cancelled"]:
+                raise ValidationError(
+                    "Only properties in the state new or cancelled can be deleted"
+                )

estate/models/estate_tag.py

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+from odoo import fields, models
+
+
+class EstateTag(models.Model):
+    _name = "estate.tag"
+    _description = "An estate tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    # Constraints
+    _check_name = models.Constraint(
+        "UNIQUE(name)",
+        "A tag name must be unique",
+    )

estate/models/estate_type.py

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+from odoo import api, fields, models
+
+
+class EstateType(models.Model):
+    _name = "estate.type"
+    _description = "An estate type"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer(required=True, default=1)
+
+    # Foreign fields
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    offer_ids = fields.One2many("estate.offer", "property_type_id")
+
+    # Computed fields
+    offer_count = fields.Integer(compute="_compute_offer_count")
+
+    # Constraints
+    _check_name = models.Constraint(
+        "UNIQUE(name)",
+        "A type must be unique",
+    )
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/res_user.py

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+from odoo import fields, models
+
+
+class User(models.Model):
+    _inherit = "res.users"
+
+    # Foreign fields
+
+    property_ids = fields.One2many(
+        "estate.property",
+        "seller_id",
+    )
+
+    # Computed fields
+
+    available_property_ids = fields.One2many(
+        "estate.property", compute="_compute_filtered_properties"
+    )
+
+    def _compute_filtered_properties(self):
+        for record in self:
+            record.available_property_ids = record.property_ids.filtered(
+                lambda x: x.state not in ("sold", "cancelled")
+            )

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_type,access_estate_type,estate.model_estate_type,base.group_user,1,1,1,1
+estate.access_estate_tag,access_estate_tag,estate.model_estate_tag,base.group_user,1,1,1,1
+estate.access_estate_offer,access_estate_offer,estate.model_estate_offer,base.group_user,1,1,1,1

estate/tests/__init__.py

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+from . import test_estate_offer
+from . import test_estate_property

estate/tests/common.py

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+from odoo.tests import TransactionCase
+
+
+class TestEstateCommon(TransactionCase):
+    def setUp(self):
+        super().setUp()
+
+        self.property = self.env["estate.property"].create(
+            {
+                "name": "House 1",
+                "expected_price": 1000,
+                "property_type_id": self.env["estate.type"]
+                .create({"name": "House"})
+                .id,
+                "seller_id": self.env.user.id,
+            }
+        )