yoelf - technical training

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "estate",
+    "depends": [
+        "base",
+    ],
+    "application": True,
+    "author": "Yoelf",
+    "license": "LGPL-3",
+    "version": "19.0.0.1.0",
+    "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/res_user_views.xml",
+        "views/estate_menus.xml",
+    ],
+}

estate/models/__init__.py

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

estate/models/estate_property.py

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+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+from odoo import api, fields, models
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate Property"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        copy=False, default=lambda self: fields.Date.add(fields.Date.today(), months=3)
+    )
+    expected_price = fields.Integer(required=True)
+    selling_price = fields.Integer(readonly=True, copy=False)
+    bedrooms = fields.Integer(default=2)
+    living_area = fields.Integer(default=0)
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer(default=0)
+    garden_orientation = fields.Selection(
+        string="orientation",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        string="State",
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        required=True,
+        default="new",
+    )
+    estate_property_type_id = fields.Many2one(
+        "estate.property.type", string="Property Type"
+    )
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False, readonly=True)
+    salesperson_id = fields.Many2one(
+        "res.users", string="Salesman", default=lambda self: self.env.user
+    )
+    estate_property_tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    estate_property_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_positive = models.Constraint(
+        "CHECK(expected_price > 0)",
+        "A property expected price must be strictly positive.",
+    )
+    _check_selling_price_positive = models.Constraint(
+        "CHECK(selling_price > 0)", "A property selling price must be positive"
+    )
+
+    @api.depends("living_area", "garden_area", "garden")
+    def _compute_total_area(self):
+        for property in self:
+            property.total_area = (
+                property.living_area + property.garden_area
+                if property.garden
+                else property.living_area
+            )
+
+    @api.depends("estate_property_offer_ids.price")
+    def _compute_best_price(self):
+        for property in self:
+            property.best_price = (
+                max(property.estate_property_offer_ids.mapped("price"))
+                if property.estate_property_offer_ids
+                else None
+            )
+
+    @api.onchange("garden")
+    def _onchange_has_garden(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+
+    def action_sell(self):
+        for property in self:
+            if property.state == "cancelled":
+                raise UserError("You can't sell a a cancelled property :)")
+
+            property.state = "sold"
+            return True
+
+    def action_cancel(self):
+        for property in self:
+            if property.state == "sold":
+                raise UserError("you can't cancel a sold property :)")
+
+            property.state = "cancelled"
+            return True
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_expected_to_selling(self):
+        for property in self:
+            if (
+                not float_is_zero(property.selling_price, precision_digits=2)
+            ) and float_compare(
+                property.selling_price,
+                property.expected_price * 0.9,
+                precision_digits=2,
+            ) == -1:
+                raise ValidationError(
+                    r"the selling price cannot be lower than 90% of the expected price"
+                )
+
+    @api.ondelete(at_uninstall=False)
+    def on_delete(self):
+        for property in self:
+            if property.state not in ["new", "cancelled"]:
+                raise UserError(
+                    f"You cannot delete a property at the {property.state} state"
+                )

estate/models/estate_property_offer.py

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+from odoo.exceptions import UserError
+
+from odoo import api, fields, models
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offer for property"
+    _order = "price desc"
+
+    price = fields.Float()
+    state = fields.Selection(
+        string="Status",
+        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"
+    )
+    property_type_id = fields.Many2one(
+        "estate.property.type",
+        related="property_id.estate_property_type_id",
+        store=True,
+    )
+
+    _check_offer_price_positive = models.Constraint(
+        "CHECK(price > 0)", "The offer price must be 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 = (offer.date_deadline - offer.create_date.date()).days
+            else:
+                offer.validity = (offer.date_deadline - fields.Date.today()).days
+
+    def action_accept_offer(self):
+        for offer in self:
+            if offer.property_id.buyer_id:
+                raise UserError(
+                    "a buyer is already assigned , therefore another offer has been accepted"
+                )
+            offer.state = "accepted"
+            offer.property_id.selling_price = self.price
+            offer.property_id.buyer_id = self.partner_id
+
+        return True
+
+    def action_refuse_offer(self):
+        for offer in self:
+            offer.state = "refused"
+        return True
+
+    @api.model
+    def create(self, vals_list):
+        for vals in vals_list:
+            higher_offer = self.search_count(
+                [
+                    ("property_id.id", "=", vals["property_id"]),
+                    ("price", ">", vals["price"]),
+                ],
+                1,
+            )
+            if higher_offer:
+                raise UserError("Can't create an offer with a lower price")
+
+            self.env["estate.property"].browse(
+                vals["property_id"]
+            ).state = "offer_received"
+
+        return super().create(vals_list)

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Property Tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+    _check_name_unique = models.Constraint(
+        "UNIQUE(name)", "A property tag name must 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 = "Property Type"
+    _order = "sequence"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer()
+    property_ids = fields.One2many("estate.property", "estate_property_type_id")
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    offer_count = fields.Integer(compute="_compute_offer_count")
+
+    _check_name_unique = models.Constraint(
+        "UNIQUE(name)", "A property type name must be unique."
+    )
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for type in self:
+            type.offer_count = len(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(
+        "estate.property",
+        "salesperson_id",
+        domain=[("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_property_access_user,estate.property.user,model_estate_property,base.group_user,1,1,1,1
+estate_property_type_access_user,estate.property.type.user,model_estate_property_type,base.group_user,1,1,1,1
+estate_property_tag_access_user,estate.property.tag.user,model_estate_property_tag,base.group_user,1,1,1,1
+estate_property_offer_access_user,estate.property.offer.user,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,
+        })]
+        with self.assertRaises(ValidationError):
+            self.estate.offer_ids.accept_offer()

estate/views/estate_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+    <menuitem id="estate_menu_root" name="Estate">
+        <menuitem id="estate_menu_advertisement" name="Advertisement">
+            <menuitem id="estate_property_menu" 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>