[ADD] implemented 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': "Real Estate",
+    'version': "0.1.0",
+    'author': "keman-odoo",
+    'license': "LGPL-3",
+    'category': "Tutorials",
+    'depends': ['base'],
+    'summary': "manage properties, track buyers offers and handle property sales efficiently",
+    'sequence': "3",
+    '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_views.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

estate/models/estate_property.py

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+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = " Real estate Property"
+
+    def _default_validity(self):
+        return fields.Date.today() + relativedelta(months=+3)
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self):
+        self.total_area = self.garden_area + self.living_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        prices = self.offer_ids.mapped("price")
+        self.best_price = max(prices) if prices else 0
+
+    name = fields.Char(required=True, default="UNKNOWN")
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(default=_default_validity, copy=False)
+    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()
+    active = fields.Boolean(default=True)
+    garden_orientation = fields.Selection(
+        [
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West')
+        ],
+        string="Garden Orientation"
+    )
+    state = fields.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",
+    )
+    buyer_id = fields.Many2one(
+        "res.partner",
+        string="Buyer",
+    )
+    user_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",
+    )
+    total_area = fields.Float(compute="_compute_total_area")
+    best_price = fields.Float(compute="_compute_best_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 = False
+
+    def action_sold(self):
+        for record in self:
+            if record.state == 'cancelled':
+                raise UserError("Cancelled property can not be sold")
+            else:
+                record.state = 'sold'
+
+    def action_cancle(self):
+        for record in self:
+            if record.state == 'sold':
+                raise UserError("Sold property can not be Cancelled")
+            else:
+                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 offers"
+
+    @api.depends("create_date", "validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            if record.create_date:
+                record.date_deadline = record.create_date + \
+                    timedelta(days=record.validity)
+            else:
+                record.date_deadline = fields.Date.today() + timedelta(days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            if record.create_date and record.date_deadline:
+                record.validity = (record.date_deadline -
+                                   record.create_date.date()).days
+
+    price = fields.Float()
+    status = fields.Selection(
+        [
+            ('accepted', 'Accepted'),
+            ('refused', 'Refused'),
+        ],
+        string="Status",
+        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"
+    )
+
+    def action_confirm(self):
+        for record in self:
+            for offer in record.property_id.offer_ids:
+                if offer.status == "accepted":
+                    raise UserError("Only one offer can be acceped....")
+            record.status = "accepted"
+            record.property_id.selling_price = record.price
+            record.property_id.buyer_id = record.partner_id
+
+    def action_cancel(self):
+        for record in self:
+            if record.status == 'accepted':
+                record.status = "refused"
+                record.property_id.selling_price = False
+                record.property_id.buyer_id = False
+            else:
+                record.status = 'refused'

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 tag"
+
+    name = fields.Char(required=True)

estate/models/estate_property_type.py

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+from odoo import models, fields
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "estate property"
+
+    name = fields.Char(required=True)

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,access_estate_property,model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type,access_estate_property_type,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag,access_estate_property_tag,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer,access_estate_property_offer,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_advertisements_menu"
+              name="Advertisements"
+              parent="estate_menu_root"/>
+    <menuitem id="estate_property_menu_action"
+              name="Properties"
+              parent="estate_advertisements_menu"
+              action="estate_property_action"/>
+    <menuitem id="estate_setting_menu"
+              name="Settings"
+              parent="estate_menu_root"/>
+    <menuitem id="estate_property_type_menu_action"
+              name="property type"
+              parent="estate_setting_menu"
+              action="estate_property_type_action"/>
+    <menuitem id="estate_property_tag_menu_action"
+              name="property tag"
+              parent="estate_setting_menu"
+              action="estate_property_tag_action"/>
+   <menuitem id="estate_property_tag_menu_action"
+              name="Property Tag"
+              parent="estate_setting_menu"
+              action="estate_property_tag_action"/>
+</odoo>

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="estate_property_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>
+                <field name="price"/>
+                <field name="partner_id"/>
+                 <field name="validity" />
+                <field name="date_deadline" />
+                <button name="action_confirm" title="Accept" type="object" icon="fa-check"/>
+                <button name="action_cancel" title="Refuse" type="object" icon="fa-times"/>
+                <field name="status"/>      
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_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>
+                <group>
+                    <field name="partner_id"/>
+                    <field name="price"/>
+                    <field name="validity" />
+                    <field name="date_deadline" />
+                </group>
+            </form>
+        </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="estate_property_tag_action" model="ir.actions.act_window">
+        <field name="name">Property Tag</field>
+        <field name="res_model">estate.property.tag</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+</odoo>

estate/views/estate_property_type_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+     <record id="estate_property_type_action" model="ir.actions.act_window">
+        <field name="name">Properties type</field>
+        <field name="res_model">estate.property.type</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+</odoo>