[ADD] estate: real estate module (web server framework 101)

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': "Estate",
+    'summary': """
+        App module created specifically for the Server Framework 101 tutorial.
+    """,
+    'description': """
+        App module created specifically for the Server Framework 101 tutorial.
+    """,
+    'author': "Odoo ALMAG",
+    'website': "https://www.odoo.com",
+    'category': 'Tutorials',
+    'depends': ['base', 'web'],
+    'application': True,
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_tag_views.xml',
+        'views/estate_property_offer_views.xml',
+        'views/estate_property_type_views.xml',
+        'views/estate_property_views.xml',
+        'views/res_users_views.xml',
+        'views/estate_menus.xml',
+    ],
+    '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_users

estate/models/estate_property.py

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+from dateutil.relativedelta import relativedelta
+from datetime import date
+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools import float_compare, float_is_zero
+
+
+class EstatePropertyModel(models.Model):
+    _name = 'estate.property'
+    _description = "Real Estate property database"
+    _order = 'id desc'
+    _expected_price_check = models.Constraint('CHECK(expected_price > 0)', "The expected price must be strictly positive.")
+    _selling_price_check = models.Constraint('CHECK(selling_price >= 0)', "The selling price must be positive.")
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(copy=False, default=lambda self: date.today() + relativedelta(months=3))
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(readonly=True, copy=False)
+    bedrooms = fields.Integer(default=2)
+    active = fields.Boolean(default=True)
+    living_area = fields.Integer()
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer()
+    garden_orientation = fields.Selection(
+        selection=[
+            ('north', "North"),
+            ('east', "East"),
+            ('south', "South"),
+            ('west', "West"),
+        ],
+        string="Garden Orientation",
+        default='south',
+    )
+    state = fields.Selection(
+        selection=[
+            ('new', "New"),
+            ('offer_received', "Offer Received"),
+            ('offer_accepted', "Offer Accepted"),
+            ('sold', "Sold"),
+            ('cancel', "Cancelled"),
+        ],
+        required=True,
+        copy=False,
+        default='new',
+    )
+
+    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', 'property_id', string="Offers")
+
+    total_area = fields.Integer(compute='_compute_total_area', string="Total Area (sqm)")
+    best_price = fields.Float(compute='_compute_best_price', string="Best Offer")
+
+    @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:
+            prices = record.offer_ids.mapped('price')
+            if prices:
+                record.best_price = max(prices)
+            else:
+                record.best_price = 0.0
+
+    @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 = False
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_selling_price(self):
+        for record in self:
+            if not float_is_zero(record.selling_price, precision_digits=2):
+                if float_compare(record.selling_price, record.expected_price * 0.9, precision_digits=2) == -1:
+                    raise ValidationError(self.env._("The selling price cannot be lower than 90% of the expected price!"))
+
+    @api.ondelete(at_uninstall=False)
+    def _ondelete_property(self):
+        for record in self:
+            if record.state not in ['new', 'cancel']:
+                raise UserError(self.env._("Only new or cancelled properties can be deleted!"))
+
+    def action_sold(self):
+        for record in self:
+            if record.state == "cancel":
+                raise UserError(self.env._("Canceled properties cannot be sold."))
+            record.state = "sold"
+        return True
+
+    def action_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError(self.env._("Sold properties cannot be canceled."))
+            record.state = "cancel"
+        return True

estate/models/estate_property_offer.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = 'estate.property.offer'
+    _description = "Property Offer"
+    _order = 'price desc'
+    _price_check = models.Constraint('CHECK(price > 0)', "The offer price must be strictly positive.")
+
+    price = fields.Float()
+    partner_id = fields.Many2one('res.partner', string="Partner", required=True)
+    property_id = fields.Many2one('estate.property', string="Property", required=True)
+    property_type_id = fields.Many2one(related='property_id.property_type_id', string="Property Type", store=True)
+    validity = fields.Integer(string="Validity (days)", default=7)
+    date_deadline = fields.Date(string="Deadline", compute='_compute_date_deadline', inverse='_inverse_date_deadline')
+    status = fields.Selection(
+        selection=[('accepted', "Accepted"), ('refused', "Refused")],
+        copy=False
+    )
+
+    @api.depends('create_date', 'validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            start_date = record.create_date if record.create_date else fields.Date.today()
+            record.date_deadline = fields.Date.add(start_date, days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (record.date_deadline - record.create_date.date()).days
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        property_ids = [vals['property_id'] for vals in vals_list if vals.get('property_id')]
+        properties = self.env['estate.property'].browse(property_ids)
+        property_map = {prop.id: prop for prop in properties}
+
+        for vals in vals_list:
+            prop = property_map.get(vals.get('property_id'))
+            if prop:
+                if prop.offer_ids:
+                    max_offer = max(prop.offer_ids.mapped('price'), default=0)
+                    if vals.get('price', 0) < max_offer:
+                        raise UserError(self.env._("The offer must be higher than existing offers!"))
+                prop.state = 'offer_received'
+
+        return super().create(vals_list)
+
+    def action_accept(self):
+        for record in self:
+            record.status = 'accepted'
+            record.property_id.buyer_id = record.partner_id
+            record.property_id.selling_price = record.price
+        return True
+
+    def action_refuse(self):
+        for record in self:
+            record.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 = "Property Tag"
+    _order = 'name'
+    _name_check = models.Constraint('UNIQUE(name)', "The name must be unique.")
+
+    name = fields.Char(required=True)
+    color = fields.Integer()

estate/models/estate_property_type.py

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+from odoo import api, fields, models
+
+
+class EstatePropertyTypeModel(models.Model):
+    _name = 'estate.property.type'
+    _description = "Real Estate property types database"
+    _order = 'sequence, name'
+    _name_check = models.Constraint('UNIQUE(name)', "The name must be unique.")
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer('Sequence', default=1, help="Used to order stages. Lower is better.")
+    property_ids = fields.One2many('estate.property', 'property_type_id')
+    offer_ids = fields.One2many('estate.property.offer', 'property_type_id')
+    offer_count = fields.Integer(compute='_compute_offer_count')
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/res_users.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",
+        string="Real Estate Properties",
+        domain="['|', ('state', '=', 'new'), ('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
+estate.access_estate_property,access_estate_property,estate.model_estate_property,base.group_user,1,1,1,1
+estate.access_estate_property_type,access_estate_property_type,estate.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" encoding="UTF-8"?>
+<odoo>
+    <data>
+        <menuitem id="estate_menu_root" name="Real Estate"/>
+        <menuitem id="estate_first_level_menu" name="Advertisements" parent="estate_menu_root"/>
+        <menuitem id="estate_property_menu_action" action="estate_property_action" parent="estate_first_level_menu"/>
+        <menuitem id="estate_menu_config" name="Settings" parent="estate_menu_root"/>
+        <menuitem id="estate_property_type_menu_action" action="estate_property_type_action" parent="estate_menu_config"/>
+        <menuitem id="estate_property_tag_menu_action" action="estate_property_tag_action" parent="estate_menu_config"/>
+    </data>
+</odoo>

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<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 string="Offers" editable="bottom"
+                decoration-success="status == 'accepted'"
+                decoration-danger="status == 'refused'">
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
+                <button name="action_accept" type="object" icon="fa-check" title="Accept"/>
+                <button name="action_refuse" type="object" icon="fa-times" title="Refuse"/>
+                <field name="status"/>
+            </list>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="estate_property_tag_view_form" model="ir.ui.view">
+        <field name="name">estate.property.tag.view.form</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <form string="Property Tag">
+                <sheet>
+                    <div class="oe_title">
+                        <h1 class="mb32">
+                            <field name="name" class="mb16" />
+                        </h1>
+                    </div>
+                    <field name="color" />
+                </sheet>
+            </form>
+        </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>

estate/views/estate_property_type_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="estate_property_type_action" model="ir.actions.act_window">
+        <field name="name">Property Types</field>
+        <field name="res_model">estate.property.type</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <record id="estate_property_type_view_form" model="ir.ui.view">
+        <field name="name">estate.property.type.form</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <form string="Property Type">
+                <sheet>
+                    <div class="oe_button_box" name="button_box">
+                        <button name="%(estate.estate_property_offer_action)d"
+                                type="action"
+                                class="oe_stat_button"
+                                icon="oi-view-list"
+                                context="{'search_default_property_type_id': id}"
+                                invisible="offer_count == 0">
+                            <div class="o_stat_info">
+                                <field name="offer_count" class="o_stat_value"/>
+                                <span class="o_stat_text">Offers</span>
+                            </div>
+                        </button>
+                    </div>
+                    <h1><field name="name"/></h1>
+                    <notebook>
+                        <page string="Properties">
+                            <field name="property_ids" readonly="True">
+                                <list>
+                                    <field name="name"/>
+                                    <field name="expected_price"/>
+                                    <field name="state"/>
+                                </list>
+                            </field>
+                        </page>
+                    </notebook>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="estate_property_type_view_list" model="ir.ui.view">
+        <field name="name">estate.property.type.view.list</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="sequence" widget="handle" />
+                <field name="name" />
+            </list>
+        </field>
+    </record>
+</odoo>