rohar - Technical Training

estate/__init__.py

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+
+from . import models

estate/__manifest__.py

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+{
+    "name": "Estate",
+    "version": "19.0.1.0.0",
+    "depends": [
+        "base",
+        ],
+    "author": "Roman (rohar)",
+    "description": """
+    Real Estate Advertisement
+    """,
+    # data files always loaded at installation
+    "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_user_views.xml",
+    ],
+    # data files containing optionally loaded demonstration data
+    "demo": [],
+    "application": True,
+    "license": "LGPL-3",
+}

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 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 = "Real estate property"
+    _order = "id desc"
+
+    name = fields.Char("Property Name", required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        "Available From",
+        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_area = fields.Integer()
+    facades = fields.Integer()
+    has_garage = fields.Boolean("Garage")
+    has_garden = fields.Boolean("Garden")
+    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",
+    )
+    buyer_id = fields.Many2one("res.partner", copy=False)
+    salesperson_id = fields.Many2one("res.users", default=lambda self: self.env.user)
+    type_id = fields.Many2one("estate.property.type", string="Property Type")
+    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")
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.garden_area + record.living_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for record in self:
+            record.best_price = max(record.offer_ids.mapped("price"), default=0)
+
+    @api.onchange("has_garden")
+    def _onchange_has_garden(self):
+        if self.has_garden:
+            self.garden_orientation = "north"
+            self.garden_area = 10
+        else:
+            self.garden_orientation = None
+            self.garden_area = 0
+
+    def action_sold(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise UserError("A cancelled property cannot be sold !")
+
+            record.state = "sold"
+        return True
+
+    def action_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("A sold property cannot be cancelled !")
+
+            record.state = "cancelled"
+        return True
+
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)",
+        "A property expected price must be stricly positive",
+    )
+
+    _check_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        "A property selling price must be positive",
+    )
+
+    @api.constrains("selling_price", "expected_price")
+    def check_selling_price(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_digits=2):
+                return
+            if float_compare(record.selling_price, 0.9 * record.expected_price, precision_digits=2) == -1:
+                raise ValidationError("The selling price cannot be lower than 90% of the expected price.")
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_new_or_cancelled(self):
+        if any(not record.state in ("new", "cancelled") for record in self):
+            raise UserError("Can only delete an new or cancelled property.")

estate/models/estate_property_offer.py

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+from odoo import api, fields, models
+from odoo.tools.float_utils import float_compare
+from odoo.exceptions import UserError, ValidationError
+from dateutil.relativedelta import relativedelta
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "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)
+    property_type_id = fields.Many2one(related="property_id.type_id", store=True)
+    validity = fields.Integer("Validity (days)", default=7)
+    date_deadline = fields.Date(
+        "Deadline", compute="_compute_date_deadline", inverse="_inverse_date_deadline"
+    )
+
+    _check_price = models.Constraint(
+        "CHECK(price > 0)",
+        "An offer price must be stricly positive",
+    )
+
+    @api.depends("validity", "create_date")
+    def _compute_date_deadline(self):
+        for record in self:
+            date = record.create_date if record.create_date else fields.Date.today()
+            record.date_deadline = date + relativedelta(days=record.validity)
+
+    @api.model
+    def create(self, vals_list):
+        property = self.env["estate.property"].browse(vals_list[0]["property_id"])
+        if max(property.offer_ids.mapped("price"), default=0.0) > vals_list[0]["price"]:
+            raise UserError("New offer must be higher than existing ones.")
+
+        property.state = "offer_received"
+
+        return super().create(vals_list)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            days = record.date_deadline - record.create_date.date()
+            record.validity = days.days
+
+    def action_accept(self):
+        for record in self:
+            property_id = record.property_id
+            if property_id.state in ("sold", "accepted"):
+                raise UserError("A sold or cancelled property can't be sold.")
+
+            if (property_id.has_garden and property_id.garden_orientation == "south" and float_compare(record.price, property_id.expected_price, precision_digits=2) == -1):
+                raise ValidationError("The selling price cannot be lower than 90% of the expected price.")
+
+            record.status = "accepted"
+            property_id.state = "sold"
+            property_id.buyer_id = record.partner_id
+            property_id.selling_price = record.price
+
+    def action_refuse(self):
+        self.status = "refused"

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 = models.Constraint(
+        "UNIQUE (name)",
+        "Each 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 desc, name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "type_id", string="Properties")
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    sequence = fields.Integer(default=1)
+    count = fields.Integer(compute="_compute_count")
+
+    _check_name = models.Constraint(
+        "UNIQUE (name)",
+        "Each type name must be unique",
+    )
+
+    @api.depends("offer_ids")
+    def _compute_count(self):
+        for record in self:
+            record.count = len(record.offer_ids)

estate/models/res_user.py

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+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _name = "res.users"
+    _inherit = ["res.users"]
+
+    property_ids = fields.One2many(
+        "estate.property",
+        "salesperson_id",
+        domain=[("state", "in", ("new", "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
+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_acces_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.has_garden = True
+        self.estate.garden_orientation = 'south'
+        self.estate.offer_ids = [Command.create({
+            'price': 475000.0,
+            'partner_id': self.test_partner.id,
+        })]
+        with self.assertRaises(ValidationError):
+            self.estate.offer_ids.action_accept()

estate/views/estate_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+    <menuitem id="estate_property_root" name="Real Estate">
+        <menuitem id="estate_property_menu_advertisement" name="Advertisement">
+            <menuitem id="estate_property_menu" action="estate_property_action"/>
+        </menuitem>
+        <menuitem id="estate_property_menu_settings" name="Settings">
+            <menuitem id="estate_property_type_menu" action="estate_property_type_action"/>
+            <menuitem id="estate_property_tag_menu" action="estate_property_tag_action"/>
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0"?>
+<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">
+                <field name="price"/>
+                <field name="status"/>
+                <field name="partner_id"/>
+                <field name="property_id"/>
+                <field name="validity" optional="true"/>
+                <field name="date_deadline" optional="true"/>
+                <field name="property_type_id" optional="true"/>
+            </list>
+        </field>
+    </record>
+    <record id="estate_property_offer_action" model="ir.actions.act_window">
+        <field name="name">Property Offers</field>
+        <field name="res_model">estate.property.offer</field>
+        <field name="domain">[('property_type_id', '=', active_id)]</field>
+        <field name="view_mode">list,form</field>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0"?>
+<odoo>
+    <record id="estate_property_tag_view_list" model="ir.ui.view">
+        <field name="name">estate.property.tag.list</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list string="Tags" editable="bottom">
+                <field name="name"/>
+            </list>
+        </field>
+    </record>
+    <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>