sever - Technical Training

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Estate",
+    "author": "sever",
+    "depends": [
+        "base",
+    ],
+    "application": True,
+    "license": "LGPL-3",
+    "data": [
+        "views/estate_property_tag_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_offer_views.xml",
+        "views/estate_property_views.xml",
+        "views/estate_property_users_view.xml",
+        "views/estate_menus.xml",
+        "security/ir.model.access.csv",
+    ],
+}

estate/models/__init__.py

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+from . import estate_property  # noqa: I001
+from . import estate_property_type
+from . import estate_property_tag
+from . import estate_property_offer
+from . import user_property

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 = "Estate Property Module"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        default=fields.Date.add(fields.Date.today(), months=3),
+        copy=False,
+    )
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(readonly=True, copy=False)
+    bedrooms = fields.Integer(default=2)
+    living_areas = 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"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        default="new",
+        required=True,
+        copy=False,
+    )
+    property_type_id = fields.Many2one("estate.property.type")
+    buyer_id = fields.Many2one("res.partner", copy=False)
+    seller_id = fields.Many2one("res.users", default=lambda self: self.env.user)
+    property_tag_ids = fields.Many2many("estate.property.tag")
+    offer_ids = fields.One2many("estate.property.offer", "property_id")
+    total_area = fields.Integer(compute="_compute_total_area")
+    best_price = fields.Float(compute="_compute_best_price")
+
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)",
+        "The expected price must be strictly positive.",
+    )
+    _check_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        "The selling price must be positive",
+    )
+
+    @api.depends("living_areas", "garden_area")
+    def _compute_total_area(self):
+        for property in self:
+            property.total_area = property.garden_area + property.living_areas
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for property in self:
+            property.best_price = (
+                max(property.offer_ids.mapped("price")) if len(property.offer_ids) > 0 else 0
+            )
+
+    @api.constrains("expected_price", "selling_price")
+    def _check_selling_price(self):
+        for property in self:
+            too_low = float_compare(property.selling_price, 0.9 * property.expected_price, 3) == -1
+            if not float_is_zero(property.selling_price, 3) and too_low:
+                msg = "The selling price cannot be lower than 90 percents of the expected price."
+                raise ValidationError(msg)
+
+    @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 = None
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_new_or_cancelled_property(self):
+        for property in self:
+            if property.state != "new" and property.state != "cancelled":
+                msg = "Only new or cancelled properties can be deleted"
+                raise UserError(msg)
+        return super().unlink()
+
+    def action_sold_property(self):
+        for property in self:
+            if property.state == "cancelled":
+                msg = "Sold properties cannot be cancelled"
+                raise UserError(msg)
+            property.state = "sold"
+        return True
+
+    def action_cancel_property(self):
+        for property in self:
+            if property.state == "sold":
+                msg = "Cancelled properties cannot be sold"
+                raise UserError(msg)
+            property.state = "cancelled"
+        return True

estate/models/estate_property_offer.py

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+from odoo import api, fields, models
+from odoo.exceptions import ValidationError
+from odoo.tools.float_utils import float_compare
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "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(
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+    )
+
+    _check_offer_price = models.Constraint(
+        "CHECK(price > 0)",
+        "The offer price must be strictly positive",
+    )
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for offer in self:
+            if offer.create_date:
+                offer.date_deadline = fields.Date.add(
+                    offer.create_date,
+                    days=offer.validity,
+                )
+            else:
+                offer.date_deadline = fields.Date.add(
+                    fields.Date.today(),
+                    days=offer.validity,
+                )
+
+    def _inverse_date_deadline(self):
+        for offer in self:
+            if offer.create_date:
+                offer.validity = int((offer.date_deadline - offer.create_date.date()).days)
+            else:
+                offer.validity = int((offer.date_deadline - fields.Date.today()).days)
+
+    @api.model_create_multi
+    def create(self, vals):
+        for offer in vals:
+            linked_property = self.env["estate.property"].browse(offer["property_id"])
+            if float_compare(offer["price"], linked_property.best_price, 3) == -1:
+                msg = "Offer price cannot be lower than an existing offer"
+                raise ValidationError(msg)
+            linked_property.state = "offer_received"
+        return super().create(vals)
+
+    @api.constrains("status", "property_id")
+    def _check_south_facing_garden_accept_offer(self):
+        for offer in self:
+            price_below_expected = float_compare(offer.price, offer.property_id.expected_price, 3) == -1
+            if offer.status == "accepted" and offer.property_id.garden_orientation == "south" and price_below_expected:
+                msg = "Offers for properties with south facing garden can only be accepted if the price of the offer is above the expected price of the property"
+                raise ValidationError(msg)
+
+    def action_accept_offer(self):
+        for offer in self:
+            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_refuse_offer(self):
+        for offer in self:
+            offer.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()
+
+    _check_name_unique = models.Constraint(
+        "UNIQUE(name)",
+        "The 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 = "Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    sequence = fields.Integer("Sequence", default=1)
+
+    _check_name_unique = models.Constraint(
+        "UNIQUE(name)",
+        "The type name must be unique",
+    )

estate/models/user_property.py

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+from odoo import fields, models
+
+
+class UserProperties(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        "estate.property", "seller_id", domain=[('state', '=', '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,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

estate/tests/__init__.py

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+from . import test_estate_property

estate/tests/test_estate_property.py

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+from odoo.exceptions import ValidationError
+from odoo.tests import TransactionCase
+from odoo import Command
+
+
+class TestEstateProperty(TransactionCase):
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.estate = cls.env['estate.property'].create({
+            'name': 'Super test estate',
+            'expected_price': 100000.0,
+            'state': 'new',
+        })
+        cls.test_partner = cls.env['res.partner'].create({
+            'name': 'Maman ours',
+        })
+
+    def test_estate_best_price(self):
+        '''
+        Ensure best price is correctly updated when an offer is received.
+        '''
+        self.assertEqual(self.estate.best_price, 0.0)
+        self.estate.offer_ids = [Command.create({
+            'price': 125000.0,
+            'partner_id': self.test_partner.id,
+        })]
+        self.assertEqual(self.estate.best_price, 125000.0)
+
+    def test_accept_offer_south_facing_garden(self):
+        '''
+        Ensure offers for estates with south-facing gardens can only be accepted if above expected
+        price.
+        '''
+        self.estate.expected_price = 500000
+        self.estate.offer_ids = [Command.create({
+            'price': 475000.0,
+            'partner_id': self.test_partner.id,
+        })]
+        self.estate.garden = True
+        self.estate.garden_orientation = 'south'
+        with self.assertRaises(ValidationError):
+            self.estate.offer_ids.action_accept_offer()

estate/views/estate_menus.xml

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+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_advertisements_menu" name="Advertisements">
+            <menuitem id="estate_property_menu_action" action="estate_property_action"/>
+        </menuitem>  
+        <menuitem id="estate_settings_menu" name="Settings">
+            <menuitem id="estate_property_type_menu_action" action="estate_property_type_action"/>
+            <menuitem id="estate_property_tag_menu_action" action="estate_property_tag_action"/>
+        </menuitem>  
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

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+<odoo>
+    <record id="estate_property_offer_view_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-success="status=='accepted'" decoration-danger="status=='refused'">
+                <field name="price"/>
+                <field name="partner_id" string="Partner"/>
+                <field name="validity" string="Validity (days)"/>
+                <field name="date_deadline" string="Deadline"/>
+                <button name="action_accept_offer" string="Accept" type="object" icon="fa-check" invisible="status == 'refused' or status == 'accepted'"/>
+                <button name="action_refuse_offer" string="Refuse" type="object" icon="fa-times" invisible="status == 'refused' or status == 'accepted'"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_offer_view_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>
+                <sheet>
+                    <group>
+                        <field name="price"/>
+                        <field name="partner_id" string="Partner"/>
+                        <field name="validity" string="Validity (days)"/>
+                        <field name="date_deadline" string="Deadline"/>
+                        <field name="status"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tag_views.xml

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+<odoo>
+    <record id="estate_property_tag_action" 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>
+
+</odoo>