[ADD] estate : Real Estate Advertisement App

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Real Estate",
+    "application": True,
+    "installable": True,
+    "category": "Real Estate/Brokerage",
+    "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",
+    ],
+    "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

estate/models/estate_property.py

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+from datetime import timedelta
+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+
+class EstateModel(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Advertisement Model"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        copy=False,
+        default=fields.Date.today() + timedelta(days=90),
+    )
+    active = fields.Boolean(default=True)
+    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()
+    state = fields.Selection(
+        string="State",
+        default="new",
+        required=True,
+        copy=False,
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+    )
+    garden_orientation = fields.Selection(
+        string="Garden Orientation",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+        help="Select the direction the garden faces",
+    )
+    property_type_id = fields.Many2one("estate.property.type")
+    buyer = fields.Many2one("res.partner", readonly=True)
+    salesman = fields.Many2one("res.users")
+    tag_ids = fields.Many2many("estate.property.tag")
+    offer_ids = fields.One2many("estate.property.offer", inverse_name="property_id")
+    total_area = fields.Float(compute="_compute_total_area", store=True)
+    best_price = fields.Float(compute="_compute_best_price", store=True, default=0.0)
+
+    _sql_constraints = [
+        (
+            "check_property_expected_price",
+            "CHECK(expected_price > 0)",
+            "Property Expected Price must be a valid value",
+        ),
+        (
+            "check_property_selling_price",
+            "CHECK(selling_price >= 0)",
+            "Property Selling Price must be positive",
+        ),
+    ]
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price_percentage(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_rounding=0.01):
+                continue
+            if (
+                float_compare(
+                    record.selling_price,
+                    (record.expected_price * 0.9),
+                    precision_rounding=0.01,
+                )
+                < 0
+            ):
+                raise ValidationError(
+                    "Selling Price of the property can not be less than 90 percent of the expected Price"
+                )
+
+    @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:
+            self.write(
+                {
+                    "best_price": max(record.offer_ids.mapped("price"), default=0.0),
+                }
+            )
+        if record.best_price > 0.0:
+            record.state = "offer_received"
+
+    @api.onchange("garden")
+    def _set_garden_default_values(self):
+        if self.garden:
+            self.write({"garden_area": 10, "garden_orientation": "north"})
+        else:
+            self.write({"garden_area": 0, "garden_orientation": ""})
+
+    def action_property_sold(self):
+        if float_is_zero(self.selling_price, precision_rounding=0.01):
+            raise UserError(
+                "Atleast one offer must be accepted before selling the property"
+            )
+        self.state = "sold"
+
+    def action_property_cancelled(self):
+        self.state = "cancelled"
+        for offer in self.offer_ids:
+            if not offer.status:
+                offer.status = "refused"

estate/models/estate_property_offer.py

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+from datetime import timedelta
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstateOfferModel(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real Estate Property Offer Model"
+    _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(
+        "estate.property.type", related="property_id.property_type_id", required=True
+    )
+    validity = fields.Integer(
+        default=7,
+        help="offer validity period in days; the offer will be automatically refused when this expires.",
+    )
+    date_deadline = fields.Date(
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+        default=fields.Date.today() + timedelta(days=7),
+    )
+
+    _sql_constraints = [
+        (
+            "check_property_offer_price",
+            "CHECK(price > 0)",
+            "Property Offer Price must be a valid value",
+        )
+    ]
+
+    @api.depends("validity", "create_date")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = fields.Date.add(
+                (record.create_date or fields.date.today()), days=record.validity
+            )
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (
+                (record.date_deadline - record.create_date.date()).days
+                if record.date_deadline
+                else 0
+            )
+
+    def action_offer_confirm(self):
+        if self.status in ["accepted", "refused"]:
+            raise UserError(f"Offer is already {self.status}")
+
+        # update the current selected offer
+        self.status = "accepted"
+        self.property_id.write(
+            {
+                "state": "offer_accepted",
+                "buyer": self.partner_id,
+                "selling_price": self.price,
+            }
+        )
+
+        # update the rest offers status to "refused"
+        refused_offers = self.property_id.offer_ids - self
+        refused_offers.write(
+            {
+                "status": "refused",
+            }
+        )
+
+    def action_offer_cancel(self):
+        for record in self:
+            if record.status in ["accepted", "refused"]:
+                raise UserError(f"Offer is already {record.status}")
+            record.status = "refused"

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstateTagModel(models.Model):
+    _name = "estate.property.tag"
+    _description = "Real Estate Property Tag Model"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer(string="Color", default=0)
+
+    _sql_constraints = [
+        ("check_property_tag_name", "UNIQUE(name)", "Property Tag Name must be unique")
+    ]

estate/models/estate_property_type.py

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+from odoo import api, fields, models
+
+
+class EstateTypeModel(models.Model):
+    _name = "estate.property.type"
+    _description = "Real Estate Property Type Model"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    sequence = fields.Integer(
+        "Sequence", default=1, help="Used to change the sequence of Property Types"
+    )
+    offer_ids = fields.One2many(
+        "estate.property.offer", inverse_name="property_type_id"
+    )
+    offer_count = fields.Integer(
+        default=0, readonly=True, compute="_compute_offers_by_type"
+    )
+
+    _sql_constraints = [
+        (
+            "check_property_type_name",
+            "UNIQUE(name)",
+            "Property Type Name must be unique",
+        )
+    ]
+
+    @api.depends("offer_ids")
+    def _compute_offers_by_type(self):
+        self.offer_count = len(self.offer_ids)

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_user,model_estate_property,model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type_user,model_estate_property_type,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag_user,model_estate_property_tag,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer_user,model_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>
+
+    <menuitem id="estate_menu_root" name="Real Estate">
+
+        <menuitem id="estate_advertisements_menu" name="Advertisements">
+            <menuitem id="estate_property_adv_menu_action" action="action_estate_property" name="Property" />
+        </menuitem>
+
+        <menuitem id="estate_settings_menu" name="Settings">
+            <menuitem id="estate_property_menu_action" action="action_estate_property" name="Property" />
+            <menuitem id="estate_property_type_menu_action" action="action_estate_property_type" name="Property Types" />
+            <menuitem id="estate_property_tag_menu_action" action="action_estate_property_tag" name="Property Tags" />
+        </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</field>
+        <field name="domain">[('property_type_id', '=', active_id)]</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Create the first property Type
+            </p>
+        </field>
+    </record>
+
+    <record id="list_view_estate_property_offer" model="ir.ui.view">
+        <field name="name">Estate Properties Offer list</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <list editable="bottom" decoration-danger="status == 'refused'" decoration-success="status == 'accepted'">
+                <field name="price" string="Price" />
+                <field name="partner_id" string="Partner" />
+                <field name="validity" string="Validity" />
+                <field name="date_deadline" string="Deadline" />
+                <button name="action_offer_confirm" type="object" icon="fa-check" invisible="status == 'refused' or status == 'accepted'" />
+                <button name="action_offer_cancel" type="object" icon="fa-times" invisible="status in ['refused', 'accepted']" />
+                <field name="status" string="Status" readonly="True"/>
+            </list>
+        </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0"?>
+
+<odoo>
+
+    <record id="action_estate_property_tag" model="ir.actions.act_window">
+        <field name="name">Property Tag</field>
+        <field name="res_model">estate.property.tag</field>
+        <field name="view_mode">list</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Create the first property Tag
+            </p>
+        </field>
+    </record>
+
+    <record id="list_estate_property_tag" model="ir.ui.view">
+        <field name="name">Property Tag List</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list editable="bottom">
+                <field name="name" string="Tag Name"/>
+                <field name="color" string="Color" options="{'color_field' : 'color'}"/>
+            </list>
+        </field>
+    </record>
+
+</odoo>