HKAFE - Technical Training

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Real Estate',
+    'summary': 'Manages real estate properties.',
+    'depends': ['base'],
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_views.xml',
+        'views/estate_menus.xml',
+        'views/estate_property_offer_views.xml',
+        'views/estate_property_type_views.xml',
+        'views/estate_property_type_menus.xml',
+        'views/estate_property_tag_views.xml',
+        'views/estate_property_tag_menus.xml',
+        'views/res_users_views.xml',
+    ],
+    'application': True,
+    'author': "Odoo",
+    'license': 'AGPL-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_users

estate/models/estate_property.py

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+from dateutil.relativedelta import relativedelta
+from odoo import api, models, fields
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_is_zero, float_compare
+
+
+class Property(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    notes = fields.Html()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        default=lambda self: fields.Date.today() + relativedelta(months=3), copy=False)
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(
+        compute="_compute_selling_price", copy=False, readonly=True, store=True)
+    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'),
+        ('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", string="Property Type")
+    buyer_id = fields.Many2one("res.partner", string="Buyer",
+                               copy=False, compute="_compute_buyer")
+    salesperson_id = fields.Many2one(
+        "res.users", string="Salesperson", default=lambda self: self.env.uid)
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many(
+        "estate.property.offer", "property_id", string="Offers")
+    total_area = fields.Integer(
+        compute="_compute_total_area", string="Total Area (sqm)")
+    best_offer = fields.Float(
+        compute="_compute_best_offer")
+
+    _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 non-negative.'
+    )
+
+    @api.depends('offer_ids.status', 'offer_ids.price')
+    def _compute_selling_price(self):
+        for property in self:
+            accepted_offer = property.offer_ids.filtered(
+                lambda o: o.status == 'accepted')
+            if accepted_offer:
+                property.selling_price = accepted_offer.price
+            else:
+                property.selling_price = 0.0
+
+    @api.depends('offer_ids.status', 'offer_ids.partner_id')
+    def _compute_buyer(self):
+        for property in self:
+            accepted_offer = property.offer_ids.filtered(
+                lambda o: o.status == 'accepted')
+            if accepted_offer:
+                property.buyer_id = accepted_offer.partner_id
+            else:
+                property.buyer_id = None
+
+    @api.depends('living_area', 'garden_area')
+    def _compute_total_area(self):
+        for property in self:
+            property.total_area = property.living_area + property.garden_area
+
+    @api.depends('offer_ids.price')
+    def _compute_best_offer(self):
+        for property in self:
+            if property.offer_ids:
+                property.best_offer = max(property.offer_ids.mapped('price'))
+            else:
+                property.best_offer = 0.0
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_selling_price_is_acceptable(self):
+        for property in self:
+            if not float_is_zero(property.selling_price, precision_rounding=0.01) and float_compare(
+                property.selling_price,
+                0.9 * property.expected_price,
+                precision_rounding=0.01,
+            ) < 0:
+                raise ValidationError(
+                    "The selling price must be at least 90% of the expected price. You must reduce the expected price if you want to accept this offer."
+                )
+
+    @api.onchange('garden')
+    def _onchange_garden(self):
+        if not self.garden:
+            self.garden_area = 0
+            self.garden_orientation = None
+        else:
+            self.garden_area = 10
+            self.garden_orientation = 'north'
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_property_new_or_cancelled(self):
+        for property in self:
+            if property.state not in ['new', 'cancelled']:
+                raise UserError(
+                    f"You cannot delete a property in the '{property.state}' state.")
+
+    def action_set_sold(self):
+        for property in self:
+            if property.state != 'cancelled':
+                property.state = 'sold'
+            else:
+                raise UserError(
+                    "Cancelled properties cannot be sold.")
+
+    def action_set_cancelled(self):
+        for property in self:
+            if property.state != 'sold':
+                property.state = 'cancelled'
+            else:
+                raise UserError(
+                    "Sold properties cannot be cancelled.")

estate/models/estate_property_offer.py

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+from odoo import api, models, fields
+from odoo.exceptions import ValidationError
+
+
+class PropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        [
+            ("accepted", "Accepted"),
+            ("refused", "Refused"),
+        ],
+        copy=False,
+    )
+    partner_id = fields.Many2one(
+        "res.partner", string="Partner", required=True)
+    property_id = fields.Many2one(
+        "estate.property", string="Property", required=True)
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(
+        compute="_compute_date_deadline", inverse="_inverse_date_deadline", string="Deadline")
+    property_state = fields.Selection(
+        related="property_id.state",
+    )
+    property_type_id = fields.Many2one(
+        related="property_id.property_type_id",
+        store=True,
+    )
+
+    _check_price = models.Constraint(
+        'CHECK(price > 0)', 'The offer price must be strictly positive.'
+    )
+
+    @api.depends('validity', 'create_date')
+    def _compute_date_deadline(self):
+        for offer in self:
+            if offer.create_date:
+                offer.date_deadline = fields.Date.add(
+                    offer.create_date.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 and offer.date_deadline:
+                delta = (offer.date_deadline - offer.create_date.date()).days
+                offer.validity = delta
+            elif offer.date_deadline:
+                delta = (offer.date_deadline - fields.Date.today()).days
+                offer.validity = delta
+
+    @api.model
+    def create(self, vals):
+        for val in vals:
+            property_obj = self.env['estate.property'].browse(
+                val.get('property_id'))
+            property_offers = self.env['estate.property.offer'].search([
+                ('property_id', '=', property_obj.id),
+            ])
+            if property_offers:
+                lowest_offer = min(property_offers.mapped('price'))
+                if val.get('price', 0) <= lowest_offer:
+                    raise ValidationError(
+                        "The offer price must be higher than existing offers."
+                    )
+            property_obj.state = 'offer_received'
+        return super().create(vals)
+
+    def action_accept_offer(self):
+        for offer in self:
+            offer.status = "accepted"
+            offer.property_id.state = "offer_accepted"
+
+            other_offers = self.env['estate.property.offer'].search([
+                ('property_id', '=', offer.property_id.id),
+                ('id', '!=', offer.id),
+                ('status', '!=', 'refused')
+            ])
+            other_offers.action_refuse_offer()
+
+        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 models, fields
+
+
+class PropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Real Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    _unique_name = models.Constraint(
+        'UNIQUE(name)', 'The name must be unique.'
+    )

estate/models/estate_property_type.py

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+from odoo import models, fields, api
+
+
+class PropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real Estate Property Type"
+    _order = "sequence,name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many(
+        "estate.property", "property_type_id", string="Properties")
+    sequence = fields.Integer(
+        default=1, help="Used to order property types manually in the UI.")
+    offer_ids = fields.One2many(
+        "estate.property.offer", "property_type_id", string="Offers")
+    offer_count = fields.Integer(
+        compute="_compute_offer_count")
+
+    _unique_name = models.Constraint(
+        'UNIQUE(name)', 'The name must be unique.'
+    )
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for property_type in self:
+            property_type.offer_count = len(property_type.offer_ids)

estate/models/res_users.py

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+from odoo import models, fields
+
+
+class ResUsers(models.Model):
+    _inherit = "res.users"
+
+    # Add a domain to the field so it only lists the available properties.
+    property_ids = fields.One2many(
+        comodel_name="estate.property", inverse_name="salesperson_id",
+        domain=[('state', 'in', ['new', 'offer_received']),
+                ('active', '=', True)],
+    )

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/views/estate_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_menu_advertisements" name="Advertisements">
+            <menuitem id="estate_properties_menu_action" action="estate_property_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_action" model="ir.actions.act_window">
+        <field name="name">Property 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="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 editable="bottom" decoration-success="status == 'accepted'" decoration-danger="status == 'refused'">
+                <field name="price"/>
+                <field name="partner_id" width="200"/>
+                <field name="validity" string="Validity (days)" width="100%"/>
+                <field name="date_deadline"/>
+                <button name="action_accept_offer" type="object" title="Accept" icon="fa-check" invisible="status in ['accepted', 'refused'] or property_state in ['offer_accepted', 'sold', 'cancelled']"/>
+                <button name="action_refuse_offer" type="object" title="Refuse" icon="fa-times" invisible="status in ['accepted', 'refused'] or property_state in ['offer_accepted', 'sold', 'cancelled']"/>
+            </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"/>
+                        <field name="validity" string="Validity (days)"/>
+                        <field name="date_deadline"/>
+                        <field name="status"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+
+    </record>
+</odoo>

estate/views/estate_property_tag_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_menu_settings" name="Settings">
+            <menuitem id="estate_property_tags_menu_action" action="estate_property_tag_action"/>
+        </menuitem>
+    </menuitem>
+</odoo>