[ADD] estate: added Estate Module

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Estate",
+    "version": "1.0",
+    "depends": ["base"],
+    "author": "japat",
+    "category": "Category",
+    "description": """
+    Hello , Real Estate for everyone
+    """,
+    "data": [
+        "security/ir.model.access.csv",
+        "views/estate_property_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_menus.xml",
+        "views/estate_property_offer.xml",
+    ],
+    "license": "LGPL-3",
+    "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

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 Property(models.Model):
+    _name = "estate.property"
+    _description = "estate property details"
+    _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.today() + timedelta(days=90)
+    )
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(readonly=True, copy=False)
+    bedrooms = fields.Integer(default=2)
+    living_area = fields.Integer(string="Living Area(sqm)")
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer(string="Garden Area(sqm)", store=True)
+    garden_orientation = fields.Selection(
+        selection=[
+            ("north", "North"),
+            ("west", "West"),
+            ("east", "East"),
+            ("south", "South"),
+        ]
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        default="new",
+        copy=False,
+        required=True,
+    )
+
+    property_type_id = fields.Many2one("estate.property.type", string="Property Type")
+    salesperson_id = fields.Many2one(
+        "res.users", string="Salesman", default=lambda self: self.env.user
+    )
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False, readonly=True)
+    tag_ids = fields.Many2many("estate.property.tag", string="Property Tags")
+    offer_ids = fields.One2many("estate.property.offer", "property_id")
+    total_area = fields.Float(string="Total Area(sqm)", compute="_compute_total_area")
+    best_price = fields.Float(
+        string="Best Offer", compute="_compute_best_offer", readonly=True, copy=False
+    )
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price >= 0)",
+        "The expected price should be strictly positive",
+    )
+    _check_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)",
+        "The selling price should be strictly 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")
+    def _compute_best_offer(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_price(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_rounding=0.001):
+                continue
+            if (
+                float_compare(
+                    record.selling_price,
+                    record.expected_price * 0.9,
+                    precision_rounding=0.01,
+                )
+                == -1
+            ):
+                raise ValidationError(
+                    "The selling price must be at least 90% of the expected price"
+                )
+
+    def sold_button_action(self):
+        for record in self:
+            if self.filtered(lambda x: x.state == "cancelled"):
+                raise UserError(_("Cancelled Property cannot be sold."))
+            else:
+                record.state = "sold"
+
+    def cancelled_button_action(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError(_("Sold Property cannot be Cancelled."))
+            record.state = "cancelled"

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 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", required=True)
+    property_id = fields.Many2one("estate.property", required=True)
+    validity = fields.Integer(default=7, string="Validity(Days)")
+    date_deadline = fields.Date(
+        string="Deadline",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+    )
+    disable_buttons = fields.Boolean(compute="_disable_offer_buttons", default=False)
+    property_type_id = fields.Many2one(
+        related="property_id.property_type_id", string="Property Type", store=True
+    )
+    _check_offer_price = models.Constraint(
+        "CHECK(price>=0)", "Offer Price must be strictly positive"
+    )
+
+    @api.depends("validity", "date_deadline")
+    def _compute_date_deadline(self):
+        for record in self:
+            if record.create_date:
+                creation_date = record.create_date.date()
+            else:
+                creation_date = fields.Date.today()
+            record.date_deadline = timedelta(days=record.validity) + creation_date
+
+    @api.depends("property_id.offer_ids.status")
+    def _disable_offer_buttons(self):
+        for record in self:
+            record.disable_buttons = "accepted" in record.property_id.offer_ids.mapped(
+                "status"
+            )
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            if record.create_date:
+                creation_date = record.create_date.date()
+            else:
+                creation_date = fields.Date.today()
+            date_diff = record.date_deadline - creation_date
+            record.validity = date_diff.days
+
+    def action_refuse_offer(self):
+        for record in self:
+            if record.status == "accepted":
+                raise UserError(_("You cant refuse an already accepted offer"))
+            record.status = "refused"
+        return True
+
+    def action_accept_offer(self):
+        for record in self:
+            if "accepted" in record.property_id.offer_ids.mapped("status"):
+                raise UserError(_("An Offer has already been accepted for this offer"))
+
+            record.status = "accepted"
+            record.property_id.selling_price = record.price
+            record.property_id.state = "offer_accepted"
+            record.property_id.buyer_id = record.partner_id
+        return True

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 Tags"
+    _tags_unique = models.Constraint("unique(name)", "Name already exist")
+    _order = "name asc"
+
+    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 EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+    _type_unique = models.Constraint("unique(name)", "Name already Exist")
+    _order = "sequence, name asc"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    sequence = fields.Integer()
+    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/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_menus.xml

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+<odoo>
+    <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"
+        name="Properties"
+        parent="estate_first_level_menu"
+        action="estate_property_action" />
+
+    <menuitem id="estate_property_type_setting" name="Setting" parent="estate_menu_root" />
+
+    <menuitem id="estate_property_type_menu_action" name="Property Type"
+        parent="estate_property_type_setting" action="estate_property_type_action" />
+
+    <menuitem id="estate_property_tag_menu" name="Property Tag"
+        parent="estate_property_type_setting" action="estate_property_tag_action" />
+</odoo>

estate/views/estate_property_offer.xml

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+<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>
+    </record>
+
+    <record id="estate_property_offer_list_view" 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-danger="status == 'refused'"
+                decoration-success="status == 'accepted'">
+                <field name="price" />
+                <field name="partner_id" />
+                <field name="validity" />
+                <field name="date_deadline" />
+                <button name="action_refuse_offer" string="Reject" type="object"
+                    icon="fa-times"
+                    invisible="status != False or disable_buttons" />
+                <button name="action_accept_offer" string="Accept" type="object"
+                    icon="fa-check"
+                    invisible="status != False or disable_buttons" />
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_offer_form_view" 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" />
+                        <field name="partner_id" />
+                        <field name="validity" />
+                        <field name="date_deadline" />
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <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>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

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+<odoo>
+    <record id="estate_property_tag_action" 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>
+    </record>
+
+    <record id="estate_property_tag_list" model="ir.ui.view">
+        <field name="name">Properties Tags</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list name="Property tags" editable="bottom">
+                <field name="name" />
+                <field name="color" />
+            </list>
+        </field>
+    </record>
+</odoo>