empir - Technical training

estate/__init__.py

@@ -0,0 +1 @@
+from . import models

estate/__manifest__.py

@@ -0,0 +1,15 @@
+{
+    'name': 'Estate',
+    'author': 'empir',
+    'depends': ['base'],
+    'application': True,
+    'license': 'LGPL-3',
+    'data': [
+        'security/ir.model.access.csv',
+        'views/property.xml',
+        'views/offer.xml',
+        'views/tag.xml',
+        'views/type.xml',
+        'views/estate_menus.xml',
+    ],
+}

estate/models/__init__.py

@@ -0,0 +1,4 @@
+from . import estate_property
+from . import property_type
+from . import property_tag
+from . import property_offer

estate/models/estate_property.py

@@ -0,0 +1,131 @@
+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
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real estate properties"
+    _order = "id desc"
+
+    name = fields.Char(required=True, default="Unknown")
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        string="Status",
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        required=True,
+        default="new",
+        copy=False,
+    )
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        copy=False,
+        default=fields.Date.today() + relativedelta(months=3),
+    )
+    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()
+    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"),
+        ],
+    )
+    property_type_id = fields.Many2one("estate.property.type", string="Property type")
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    salesperson_id = fields.Many2one(
+        "res.users",
+        string="Salesperson",
+        default=lambda self: self.env.user,
+    )
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many(
+        "estate.property.offer",
+        inverse_name="property_id",
+        string="Offers",
+    )
+    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)",
+        "Expected price must always be positive",
+    )
+
+    _check_selling_price_positive = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        "Selling price must be positive",
+    )
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price_minimum(self):
+        for record in self:
+            comp = float_compare(
+                record.selling_price,
+                record.expected_price * 0.9,
+                precision_digits=2,
+            )
+            if record.selling_price > 0 and comp < 0:
+                msg = "Selling price must be at least 90% of expected price"
+                raise ValidationError(msg)
+
+    @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:
+            if len(record.offer_ids) > 0:
+                record.best_price = max(record.offer_ids.mapped("price"))
+            else:
+                record.best_price = 0
+
+    @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
+
+    def action_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                msg = "Sold properties can not be cancelled"
+                raise UserError(msg)
+            record.state = "cancelled"
+        return True
+
+    def action_sold(self):
+        for record in self:
+            if record.state == "cancelled":
+                msg = "Cancelled properties can not be sold"
+                raise UserError(msg)
+            record.state = "sold"
+        return True
+
+    @api.onchange("offer_ids")
+    def _onchange_offer_ids(self):
+        for record in self:
+            if record.state == "new" and len(record.offer_ids) == 1:
+                record.state = "offer_received"

estate/models/property_offer.py

@@ -0,0 +1,89 @@
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class PropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real estate property offers"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = 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(related="property_id.property_type_id")
+
+    _check_expected_price_positive = models.Constraint(
+        "CHECK(price > 0)",
+        "Offer price must always be positive",
+    )
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            if record.validity:
+                crdate = record.create_date or fields.Date.today()
+                record.date_deadline = crdate + relativedelta(
+                    days=record.validity,
+                )
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            if record.date_deadline:
+                record.validity = record._compute_validity()
+
+    # inverse doesn't update the UI when date_deadline changes,
+    # so we define an additional onchange to not confuse users
+    @api.onchange("date_deadline")
+    def _onchange_date_deadline(self):
+        self.validity = self._compute_validity()
+
+    def _compute_validity(self):
+        crdate = fields.Date.today()
+        if self.create_date:
+            crdate = self.create_date.date()
+        delta = self.date_deadline - crdate
+        return delta.days
+
+    def action_accept(self):
+        # prevent accepting multiple offers
+        if len(self) > 1:
+            msg = "Only one offer can be accepted at a time"
+            raise UserError(msg)
+
+        # no need to process an already accepted offer
+        if self.status == "accepted":
+            return True
+
+        # ensure no other offer is already accepted
+        accepted_offers = [
+            offer for offer in self.property_id.offer_ids if offer.status == "accepted"
+        ]
+        if len(accepted_offers) > 0:
+            msg = "Another offer was already accepted"
+            raise UserError(msg)
+
+        self.status = "accepted"
+        self.property_id.buyer_id = self.partner_id
+        self.property_id.selling_price = self.price
+        self.property_id.state = "offer_accepted"
+        return True
+
+    def action_refuse(self):
+        for record in self:
+            record.status = "refused"
+        return True

estate/models/property_tag.py

@@ -0,0 +1,15 @@
+from odoo import fields, models
+
+
+class PropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Real estate property tags"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    _name_uniq = models.Constraint(
+        "unique(name)",
+        "A tag with the same name already exists",
+    )

estate/models/property_type.py

@@ -0,0 +1,21 @@
+from odoo import api, fields, models
+
+
+class PropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real estate property types"
+    _order = "sequence, name"
+
+    sequence = fields.Integer(string="Sequence", default=1)
+    name = fields.Char(required=True, string="Name")
+    property_ids = fields.One2many("estate.property", inverse_name="property_type_id")
+    offer_ids = fields.One2many(
+        "estate.property.offer",
+        inverse_name="property_type_id",
+    )
+    offer_count = fields.Integer(compute="_compute_offer_counts")
+
+    @api.depends("offer_ids")
+    def _compute_offer_counts(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/security/ir.model.access.csv

@@ -0,0 +1,5 @@
+id,name,model_id/id,group_id/id,perm_read,perm_write,perm_create,perm_unlink
+access_estate_property_user,estate.estate_property.user,model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type_user,estate.estate_property_type.user,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag_user,estate.estate_property_tag.user,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer_user,estate.estate_property_offer.user,model_estate_property_offer,base.group_user,1,1,1,1

estate/views/estate_menus.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_menu_topbar_advertisments" name="Advertisements">
+            <menuitem id="estate_menu_action" action="estate_property_action"></menuitem>
+        </menuitem>
+        <menuitem id="estate_menu_topbar_settings" name="Settings">
+            <menuitem id="estate_menu_property_types" action="estate_property_type_action"></menuitem>
+            <menuitem id="estate_menu_property_tags" action="estate_property_tag_action"></menuitem>
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/offer.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0"?>
+<odoo>
+    <record id="estate_property_offer_action" model="ir.actions.act_window">
+        <field name="name">Offers</field>
+        <field name="res_model">estate.property.offer</field>
+        <field name="view_mode">list,form</field>
+        <field name="domain">[('property_type_id','=',active_id)]</field>
+    </record>
+
+    <record id="property_offer_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>
+                <field name="price" />
+                <field name="partner_id" />
+                <field name="status" />
+                <field name="validity" />
+                <field name="date_deadline" />
+            </list>
+        </field>
+    </record>
+    <record id="estate_property_offer_form_view" 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 string="Property">
+                <sheet>
+                    <group>
+                        <group>
+                            <field name="price" />
+                            <field name="partner_id" />
+                            <field name="status" />
+                            <field name="validity" />
+                            <field name="date_deadline" />
+                        </group>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>