[ADD] estate: added a new Estate Module

.vscode/settings.json

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+{
+    "python.languageServer": "None"
+}

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': "Estate",
+    'version': '1.0',
+    'license': 'LGPL-3',
+    'depends': ['base'],
+    'author': "Kalpan Desai",
+    'category': 'Estate/sales',
+    'description': """
+        Module specifically designed for real estate buisness case.
+    """,
+    'installable': True,
+    'application': True,
+
+    '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_res_user_views.xml',
+        'views/estate_menus.xml',
+        ]
+
+}

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 estate_res_user

estate/models/estate_property.py

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+from odoo import models, fields, api
+from dateutil.relativedelta import relativedelta
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools import float_utils, _
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Details of all the properties will be stored over here."
+    _order = "id desc"
+    name = fields.Char('Name', required=True, default='Unknown Property')
+    description = fields.Text('Description')
+    postcode = fields.Char('Postcode')
+    date_availability = fields.Date(
+        "Date Availability",
+        default=lambda self: fields.Date.to_string(fields.Date.context_today(self) + relativedelta(months=3))
+    )
+    expected_price = fields.Float('Expected Price', required=True)
+    selling_price = fields.Float('Selling Price', readonly=True, copy=False)
+    bedrooms = fields.Integer('Bedrooms', default=2)
+    living_area = fields.Integer('Living Area (sqm)')
+    facades = fields.Integer('Facades')
+    garage = fields.Boolean('Garage')
+    garden = fields.Boolean('Garden')
+    garden_area = fields.Integer('Garden Area (sqm)')
+    garden_orientation = fields.Selection(
+        [('north', 'North'), ('south', 'South'), ('east', 'East'), ('west', 'West')],
+        string='Garden Orientation'
+    )
+    active = fields.Boolean('Active', default=True)
+    state = fields.Selection(
+        [('new', 'New'), ('offer_received', 'Offer Received'), ('offer_accepted', 'Offer Accepted'),
+         ('sold', 'Sold'), ('canceled', 'Canceled')],
+        string='Status', default='new', required=True, copy=False
+    )
+    property_type_id = fields.Many2one("estate.property.type", string="Property Type", required=True)
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    salesperson_id = fields.Many2one("res.users", string="Salesperson", default=lambda self: self.env.user)
+    tags_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+    total_area = fields.Float(compute="_compute_total_area", string="Total Area", readonly=True)
+    best_price = fields.Float(compute="_compute_best_price", string="Best Price", readonly=True)
+
+    _sql_constraints = [
+        ('check_expected_price', 'CHECK(expected_price > 0)', 'The expected price must strictly Positive.'),
+        ('check_selling_price', 'CHECK(selling_price > 0)', 'The selling price must be positive.'),
+    ]
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.garden_area + record.living_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for record in self:
+            prices = record.offer_ids.mapped("price")
+            record.best_price = max(prices, default=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
+
+    def action_sold(self):
+        if self.state != "canceled":
+            self.state = "sold"
+            # print("Log by KDES", flush=True)
+        else:
+            raise UserError("Canceled properties can't be sold")
+        return True
+
+    def action_cancel(self):
+        for record in self:
+            if record.state != "sold":
+                record.state = "canceled"
+            else:
+                raise UserError("Sold properties can't be sold")
+        return True
+
+    @api.constrains('selling_price')
+    def _check_price(self):
+        for record in self:
+            if not record.selling_price:
+                continue
+
+            if float_utils.float_compare(record.selling_price, record.expected_price * 0.9, precision_rounding=3) == -1:
+                raise ValidationError(_('The selling cannot be lower than 90% of the expected price.'))
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_state_check(self):
+        if any(record.state not in ('new', 'canceled') for record in self):
+            raise UserError(_("You cannot delete a property that is not in the 'New' or 'Canceled' state."))

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 = fields.Float()
+    status = fields.Selection(
+        string="Type",
+        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("estate.property.type", related="property_id.property_type_id", store=True)
+
+    _sql_constraints = [
+        ("check_price", "CHECK(price > 0)", "The price must be strictly positive.")
+        ]
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            if not record.create_date:
+                today = fields.Datetime.today()
+                record.date_deadline = fields.Datetime.add(today, days=record.validity)
+            else:
+                record.date_deadline = fields.Datetime.add(
+                    record.create_date, days=record.validity
+                )
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (record.date_deadline - record.create_date.date()).days
+
+    def action_accept_offer(self):
+        if self.property_id.state in {'accepted', 'sold'}:
+            raise UserError(_('An offer as already been accepted.'))
+
+        self.status = "accepted"
+        self.property_id.selling_price = self.price
+        self.property_id.buyer_id = self.partner_id
+        self.property_id.state = "offer_accepted"
+
+        return True
+
+    def action_refuse_offer(self):
+        self.ensure_one()
+        self.status = "refused"
+        return True
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            property = self.env["estate.property"].browse(vals["property_id"])
+            property.state = "offer_received"
+            if property.best_price > vals["price"]:
+                raise UserError("The offer must be higher than the existing offer")
+        return super().create(vals_list)

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 Tags"
+    _order = "name"
+
+    name = fields.Char()
+    color = fields.Integer("Color Index", default=0, help="Color index for the tag")
+
+    _sql_constraints = [
+        ('check_name', 'UNIQUE(name)', 'A tag must be unique.'),
+    ]

estate/models/estate_property_type.py

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+from odoo import models, fields, api
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Types of properties available in the estate module."
+    _order = "name"
+
+    name = fields.Char('Name', required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id", string="Property")
+    sequence = fields.Integer("Sequence", default=1, help="Used to order types. Lower is better.")
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id", string="Offers")
+    offer_count = fields.Integer(compute="compute_offer_count", string="Offers Count", store=True, readonly=True)
+
+    _sql_constraints = [
+        ('check_proterty_type_name', 'UNIQUE(name)', 'A Type must be unique.'),
+    ]
+
+    @api.depends('offer_ids')
+    def compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/estate_res_user.py

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+from odoo import fields, models
+
+
+class User(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many("estate.property", inverse_name="salesperson_id")
+    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
+access_estate_property_base_group,estate.property.basegroup,model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type_base_group,estate.property.type.basegroup,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag_base_group,estate.property.tag.basegroup,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer_base_group,estate.property.offer.basegroup,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="menu_estate_root" name="Real Estate"/>
+
+        <!-- Advertisement MENU -->
+        <menuitem id="menu_estate_advertisements"
+                name="Advertisements"
+                parent="menu_estate_root"/>
+
+        <menuitem id="menu_estate_property"
+                name="Properties"
+                parent="menu_estate_advertisements"
+                action="action_estate_property"/>
+
+        <!-- Settings MENU -->
+        <menuitem id="menu_estate_settings"
+                name="Settings"
+                parent="menu_estate_root"/>
+
+        <menuitem id="menu_estate_property_type"
+                name="Properties Type"
+                parent="menu_estate_settings"
+                action="action_estate_property_type"/> 
+
+        <menuitem id="menu_estate_property_tag"
+                name="Properties Tags"
+                parent="menu_estate_settings"
+                action="action_estate_property_tag"/> 
+</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_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" string="Price"/>
+                <field name="partner_id" string="Partner"/>
+                <field name="validity" string="Validity"/>
+                <field name="date_deadline" string="Deadline"/>
+                <!-- <field name="property_type_id" string="property ,"/> -->
+                <button name="action_accept_offer" type="object" icon="fa-check" title="Accept" invisible="status"/>
+                <button name="action_refuse_offer" type="object" icon="fa-times" title="Refuse" invisible="status"/>
+                <field name="status" string="Status"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_offer_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" width="40px" string="Price"/>
+                        <field name="partner_id" width="40px" string="Partner"/>
+                        <field name="validity" width="40px" string="Validity"/>
+                        <field name="date_deadline" width="40px" string="Deadline"/>
+                        <field name="status" width="40px" string="Status"/>
+                    </group>
+                </sheet>
+            </form>
+        </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">Tags</field>
+        <field name="res_model">estate.property.tag</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <record id="estate_property_tag_list" model="ir.ui.view">
+        <field name="name">estate.property.tag.list</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list editable="bottom">
+                <field name="name" string="Title"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_tag_form" model="ir.ui.view">
+        <field name="name">estate.property.form</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <group>
+                        <field name="name" placeholder="e.g. cozy" string="Name"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>