[ADD] Estate Module (Python Framework Training)

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Real Estate",
+    "description": "Real Estate Management System",
+    "category": "Tutorials",
+    "version": "1.1",
+    "application": True,
+    "data": [
+        "security/ir.model.access.csv",
+        "views/views.xml",
+        "views/menus.xml"
+    ],
+    "author": "Odoo S.A.",
+    "license": "LGPL-3",
+}

estate/models/__init__.py

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+from . import building
+from . import building_type
+from . import tag
+from . import offer

estate/models/building.py

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+from odoo import models, fields, api
+from odoo.exceptions import UserError
+from datetime import timedelta
+
+
+class Building(models.Model):
+    _name = "estate.buildings"
+    _description = "Buildings"
+
+    name = fields.Char()
+    description = fields.Text()
+    value = fields.Integer(copy=False)
+    availability_date = fields.Date(
+        default=lambda self: fields.Date.today() + timedelta(days=90), copy=False
+    )
+    number_of_rooms = fields.Integer(default=2)
+    garden_area = fields.Integer()
+    building_area = fields.Integer()
+    garden_orientation = fields.Selection(
+        [("north", "North"), ("south", "South"), ("east", "East"), ("west", "West")],
+        "garden Orientation",
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("canceled", "Canceled"),
+        ],
+        default="new",
+    )
+    post_code = fields.Integer(default=1000)
+    building_type_id = fields.Many2one("estate.building_type", string="Building Type")
+    buyer_id = fields.Many2one("res.partner", string="Buyer")
+    salesperson_id = fields.Many2one(
+        "res.users", string="Salesperson", default=lambda self: self.env.user
+    )
+    tag_ids = fields.Many2many("estate.building_tags", string="Tags")
+    offer_ids = fields.One2many("estate.offers", "building_id", string="Offers")
+
+    total_area = fields.Integer(string="Total Area", compute="_compute_total_area")
+
+    best_price = fields.Integer(
+        string="Best Offer Price",
+        compute="_compute_best_price",
+    )
+    has_garden = fields.Boolean(string="Has Garden", default=False)
+
+    _price_constraint = models.Constraint(
+        "CHECK (value > 0)", "Price must be POSITIVE."
+    )
+    _name_constraint = models.Constraint(
+        "UNIQUE(name)", "Building name must be UNIQUE."
+    )
+
+    @api.depends("building_area", "garden_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.building_area + record.garden_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for record in self:
+            if record.offer_ids:
+                record.best_price = max(record.offer_ids.mapped("price"))
+            else:
+                record.best_price = 0
+
+    @api.onchange("has_garden")
+    def _onchange_garden_area(self):
+        if self.has_garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    def action_set_sold(self):
+        for record in self:
+            if record.state == "canceled":
+                raise UserError(self.env._("Canceled buildings cannot be sold."))
+            record.state = "sold"
+
+    def action_set_canceled(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError(self.env._("Sold buildings cannot be canceled."))
+            record.state = "canceled"

estate/models/building_type.py

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+from odoo import models, fields
+
+
+class BuildingType(models.Model):
+    _name = "estate.building_type"
+    _description = "Building Type"
+
+    name = fields.Char(required=True)
+
+    _name_uniqueness_constraint = models.Constraint(
+        "UNIQUE (name)", "Building type name must be UNIQUE."
+    )

estate/models/offer.py

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+from odoo import models, fields, api
+from odoo.exceptions import UserError
+from datetime import timedelta
+from odoo.tools.float_utils import float_compare
+
+
+class Offer(models.Model):
+    _name = "estate.offers"
+    _description = "Offers"
+
+    price = fields.Integer(required=True)
+    status = fields.Selection(
+        [("accepted", "Accepted"), ("refused", "Refused")],
+        string="Status",
+        required=False,
+    )
+    building_id = fields.Many2one("estate.buildings", string="Building")
+    partner_id = fields.Many2one("res.partner", string="Partner")
+    validity = fields.Integer(string="Validity (days)", default=7)
+    date_deadline = fields.Date(
+        string="Deadline",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+    )
+
+    _price_positive_constraint = models.Constraint(
+        "CHECK (price > 0)", "Offer price must be positive."
+    )
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = fields.Date.today() + timedelta(days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (record.date_deadline - fields.Date.today()).days
+
+    def action_accept_offer(self):
+        for record in self:
+            if record.status != "accepted" and record.building_id.state not in [
+                "sold",
+                "canceled",
+            ]:
+                record.status = "accepted"
+                record.building_id.state = "offer_accepted"
+                record.building_id.buyer_id = record.partner_id
+                record.building_id.value = record.price
+                other_offers = self.search(
+                    [
+                        ("building_id", "=", record.building_id.id),
+                        ("id", "!=", record.id),
+                    ]
+                )
+                other_offers.write({"status": "refused"})
+            elif record.building_id.state in ["sold", "canceled"]:
+                raise UserError(
+                    self.env._("Cannot accept offers for sold or canceled buildings.")
+                )
+            else:
+                raise UserError(self.env._("Offer is already accepted."))
+
+    def action_refuse_offer(self):
+        for record in self:
+            if record.status != "refused":
+                record.status = "refused"
+                record.building_id.state = "offer_received"
+                record.building_id.buyer_id = False
+            else:
+                raise UserError(self.env._("Offer is already refused."))
+
+    @api.constrains("building_id", "price")
+    def _check_price(self):
+        for record in self:
+            if (
+                float_compare(
+                    0.9 * record.building_id.value, record.price, precision_digits=2
+                )
+                == 1
+            ):
+                raise UserError(
+                    self.env._(
+                        "Offer price must be at least 90% of the building's value."
+                    )
+                )

estate/models/tag.py

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+from odoo import models, fields
+
+
+class BuildingTag(models.Model):
+    _name = "estate.building_tags"
+    _description = "Building Tags"
+
+    name = fields.Char(required=True)
+
+    _name_uniqueness_constraint = models.Constraint(
+        "UNIQUE (name)", "Building tag name must be UNIQUE."
+    )

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_first_model,access_first_model,model_estate_buildings,base.group_user,1,1,1,1
+access_building_type_model,access_building_type_model,model_estate_building_type,base.group_user,1,1,1,1
+access_building_tags_model,access_building_tags_model,model_estate_building_tags,base.group_user,1,1,1,1
+access_offers_model,access_offers_model,model_estate_offers,base.group_user,1,1,1,1

estate/views/menus.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <menuitem id="test_menu_root" name="Estate FelBeit">
+        <menuitem id="test_first_level_menu" name="First Level">
+            <menuitem id="test_model_menu_action" action="some_model_action_1"/>
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="some_model_action_1" model="ir.actions.act_window">
+        <field name="name">Test action 1</field>
+        <field name="res_model">estate.buildings</field>
+        <field name="view_mode">list,form</field>
+    </record>
+    <record id="list_view" model="ir.ui.view">
+        <field name="name">estate.buildings.list</field>
+        <field name="model">estate.buildings</field>
+        <field name="arch" type="xml">
+            <list string="test_list">
+                <field name="name"/>
+                <field name="number_of_rooms"/>
+                <field name="value"/>
+                <field name="state"/>
+                <field name="building_type_id"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="first_form_view" model="ir.ui.view">
+        <field name="name">estate.buildings.form</field>
+        <field name="model">estate.buildings</field>
+        <field name="arch" type="xml">
+            <form string="Test">
+                <header>
+                    <button name="action_set_sold" type="object" string="Sell Building"/>
+                    <button name="action_set_canceled" type="object" string="Cancel Building"/>
+                </header>
+                <sheet>
+                    <group>
+                        <group>
+                            <field name="name"/>
+                            <field name="tag_ids" widget="many2many_tags"/>
+                            <field name="value"/>
+                            <field name="state"/>
+                            <field name="availability_date"/>
+                            <field name="building_type_id"/>
+                        </group>
+                        <group>
+                            <field name="number_of_rooms"/>
+                            <field name="post_code"/>
+                        </group>
+                    </group>
+                    <notebook>
+                        <page string="Description">
+                            <group>
+                                <field name="description"/>
+                                <field name="building_area"/>
+                                <field name="has_garden"/>
+                                <field name="garden_area"/>
+                                <field name="garden_orientation"/>
+                                <field name="total_area"/>
+                            </group>
+                        </page>
+                        <page string="Info">
+                            <group>
+                                <field name="buyer_id"/>
+                                <field name="salesperson_id"/>
+                            </group>
+                        </page>
+                        <page string="Offers">
+                            <field name="offer_ids">
+                                <list>
+                                    <field name="price"/>
+                                    <field name="status"/>
+                                    <field name="partner_id"/>
+                                    <field name="date_deadline"/>
+                                    <field name="validity"/>
+                                    <button name="action_accept_offer" type="object" string="Accept" icon="fa-check"/>
+                                    <button name="action_refuse_offer" type="object" string="Refuse" icon="fa-times"/>
+                                </list>
+                            </field>
+                            <group>
+                                <field name="best_price"/>
+                            </group>
+                        </page>
+                    </notebook>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="first_search_view" model="ir.ui.view">
+        <field name="name">estate.buildings.search</field>
+        <field name="model">estate.buildings</field>
+        <field name="arch" type="xml">
+            <search string="test_search">
+                <field name="name"/>
+                <field name="value"/>
+                <separator/>
+                <filter string="Available" name="Available" domain="[('state', 'in', ['new', 'offer_received'])]"/>
+                <filter string="postcode" name="postcode" context="{'group_by':'post_code'}"/>
+            </search>
+
+        </field>
+    </record>
+</odoo>