[ADD] estate: Added the Estate Module

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Real Estate',
+    'version': '1.0',
+    'category': 'Real Estate',
+    'depends': ['base'],
+    'author': 'snrav-odoo',
+    'license': 'LGPL-3',
+    'description': 'Real estate purchase & sales',
+    '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/res_user_views.xml',
+        'views/estate_property_menu.xml'
+        ],
+    'application': True,
+}

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 models, api, fields, exceptions
+from odoo.exceptions import ValidationError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        copy=False,
+        default=lambda self: fields.Date.context_today(self) + relativedelta(months=3),
+    )
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float()
+    bedrooms = fields.Integer(default=2)
+    living_area = fields.Integer()
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer(string="Garden Area (sqft)")
+    garden_orientation = fields.Selection([
+        ("north", "North"),
+        ("south", "South"),
+        ("east", "East"),
+        ("west", "West"),
+    ])
+    state = fields.Selection(
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        string="Status",
+        default="new",
+    )
+    active = fields.Boolean(default=True)
+    property_type_id = fields.Many2one("estate.property.type", string="Property Type", required=True)
+    customer = fields.Many2one("res.partner", string="Customer", copy=False)
+    salesperson = fields.Many2one(
+        "res.users", string="Salesperson", default=lambda self: self.env.user
+    )
+    tag_ids = fields.Many2many("estate.property.tag", string="Property Tags")
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offer")
+    total_area = fields.Integer(compute="_compute_total_area")
+    best_price = fields.Integer(compute="_compute_best_price")
+
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)", "Expected price must be strictly positive."
+    )
+
+    _check_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)", "Selling price must be positive."
+    )
+
+    @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:
+            if not record.mapped("offer_ids.price"):
+                record.best_price = 0
+            else:
+                record.best_price = max(record.mapped("offer_ids.price"))
+
+    @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 = None
+
+    def action_sold_property(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise exceptions.UserError("Properties which are Cancelled cannot be Sold")
+            else:
+                record.state = "sold"
+        return True
+
+    def action_cancel_offer(self):
+        for record in self:
+            if record.state == "sold":
+                raise exceptions.UserError("Properties which are Sold cannot be Cancelled")
+            else:
+                record.state = "cancelled"
+        return True
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price_percentage_criteria(self):
+        for record in self:
+            selling_price_percentage = (record.selling_price / record.expected_price) * 100
+            if selling_price_percentage >= 90 or selling_price_percentage == 0:
+                pass
+            else:
+                raise ValidationError(
+                    "The selling price cannot be lower then 90% of the expected price."
+                )

estate/models/estate_property_offer.py

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+from dateutil.relativedelta import relativedelta
+
+from odoo import models, api, fields
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        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)
+    property_type_id = fields.Many2one(related="property_id.property_type_id", store=True)
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(compute="_compute_deadline", inverse="_inverse_date")
+
+    _check_price = models.Constraint(
+        "CHECK(price > 0)", "Price of an offer must be positive"
+    )
+
+    @api.depends("validity")
+    def _compute_deadline(self):
+        for record in self:
+            base_date = record.create_date or fields.Date.today()
+            record.date_deadline = base_date + relativedelta(days=record.validity)
+
+    def _inverse_date(self):
+        for record in self:
+            base_date = record.create_date or fields.Date.today()
+            record.validity = (record.date_deadline - fields.Date.to_date(base_date)).days
+
+    def action_accept(self):
+        for record in self:
+            record.status = "accepted"
+            record.property_id.state = "offer_accepted"
+            record.property_id.selling_price = record.price
+            record.property_id.customer = record.partner_id
+        return True
+
+    def action_refuse(self):
+        for record in self:
+            record.status = "refused"
+            record.property_id.selling_price = 0.00
+            record.property_id.customer = None
+        return True
+
+    @api.model
+    def create(self, vals):
+        if len(vals) > 0:
+            property = self.env["estate.property"].browse(vals[0]["property_id"])
+        for record in vals:
+            if property.state == "new":
+                property.state = "offer_received"
+            if record["price"] < property.best_price:
+                raise UserError(
+                    "Offer with an amount lower than an existing offer cannot be created."
+                )
+        return super().create(vals)

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTags(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+    _check_tag_name = models.Constraint(
+        "UNIQUE(name)", "Property tag should be unique."
+    )

estate/models/estate_property_type.py

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+from odoo import models, api, fields
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+    _order = "sequence,name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    sequence = fields.Integer("Sequence", default=1)
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    offer_count = fields.Integer(compute="_compute_offer_count")
+
+    _check_type_name = models.Constraint(
+        "UNIQUE(name)", "Property type should be unique."
+    )
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.property_ids.mapped('offer_ids'))

estate/models/res_users.py

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+from odoo import fields, models
+
+
+class ResUser(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        "estate.property",
+        "salesperson",
+        domain="[('state', '!=', 'sold')]"
+    )

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
+estate.access_estate_property_tag,"access_estate_property_tag",estate.model_estate_property_tag,base.group_user,1,1,1,1
+estate.access_estate_property_offer,"access_estate_property_offer",estate.model_estate_property_offer,base.group_user,1,1,1,1
+

estate/views/estate_property_menu.xml

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+<?xml version="1.0"?>
+<odoo>
+    <menuitem 
+        id="estate_property_menu_root" 
+        name="Real Estate"
+     /> 
+    <menuitem 
+        id="estate_property_menu_advertisement"
+        name="Advertisement"
+        parent="estate_property_menu_root"
+    />
+     <menuitem 
+        id="estate_property_menu_type"
+        name="Properties"
+        parent="estate_property_menu_advertisement"
+        action="main_action_estate"
+    />
+     <menuitem 
+        id="estate_menu_configuration"
+        name="Settings"
+        parent="estate_property_menu_root"
+    />
+    <menuitem 
+        id="configuration_menu_property_types"
+        name="Property Types"
+        parent="estate_menu_configuration"
+        action="action_estate_property_type"
+    />
+    <menuitem 
+        id="configuration_menu_property_tags"
+        name="Property Tags"
+        parent="estate_menu_configuration"
+        action="action_estate_property_tag"
+    />
+</odoo>
+

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0"?>
+<odoo>
+	<record id="action_estate_property_offer" 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="action_estate_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="Channel" editable="bottom" decoration-danger="status=='refused'" decoration-success="status=='accepted'">
+				<field name="price"/>
+				<field name="partner_id"/>
+				<field name="validity" string="Validity(days)"/>
+				<field name="date_deadline"/>
+				<button name="action_accept" string="Accept" type="object" icon="fa-check" invisible="status in ('accepted', 'refused')"/>
+				<button name="action_refuse" string="Refuse" type="object" icon="fa-times" invisible="status in ('accepted', 'refused')"/>
+				<field name="status"/>
+			</list>
+		</field>
+	</record>
+	<record id="action_estate_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 string="Offer">
+				<sheet>
+					<group>
+						<field name="price" />
+						<field name="partner_id" />
+						<field name="status" />
+						<field name="validity" string="Validity(days)"/>
+						<field name="date_deadline"/>
+					</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">Properties Tags</field>
+		<field name="res_model">estate.property.tag</field>
+		<field name="view_mode">list,form</field>
+		<field name="help" type="html">
+			<p class="o_view_nocontent_smiling_face">
+                Create your first Property Tag!
+            </p>
+		</field>
+	</record>
+	<record id="action_estate_property_tag_view_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 string="Tags" editable="bottom">
+				<field name="name"/>
+				<field name="color" widget="color_picker"/>
+			</list>
+		</field>
+	</record>
+</odoo>
+