[ADD] estate: Added Estate module

estate/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

estate/__manifest__.py

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+{
+    'name': 'Estate',
+    "version": "1.0",
+    "category": "Real Estate/Brokerage",
+    'data': [
+        'security/security.xml',
+        'security/ir.model.access.csv',
+        'views/estate_property_views.xml',
+        'views/estate_property_type_views.xml',
+        'views/estate_property_tag_views.xml',
+        'views/res_users_views.xml',
+        'views/estate_menus.xml',
+        'data/estate_property_type.xml',
+    ],
+    'demo': [
+        'demo/estate_property_demo.xml',
+        'demo/estate_property_offer.xml'
+    ],
+    'application': True,
+    'installable': True,
+    'license': 'LGPL-3',
+}

estate/data/estate_property_type.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="property_type_residential" model="estate.property.type">
+        <field name="name">Residential</field>
+    </record>
+
+    <record id="property_type_commercial" model="estate.property.type">
+        <field name="name">Commercial</field>
+    </record>
+
+    <record id="property_type_industrial" model="estate.property.type">
+        <field name="name">Industrial</field>
+    </record>
+
+    <record id="property_type_land" model="estate.property.type">
+        <field name="name">Land</field>
+    </record>
+</odoo>

estate/demo/estate_property_demo.xml

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+<?xml version="1.0"  encoding="utf-8"?>
+<odoo>
+    <record id="estate_property_demo_1" model="estate.property">
+        <field name="name">Big Villa</field>
+        <field name="state">new</field>
+        <field name="description">A nice and big villa</field>
+        <field name="postcode">12345</field>
+        <field name="date_avaiblity">2020-02-02</field>
+        <field name="expected_price">1600000.0</field>
+        <field name="bedrooms">6</field>
+        <field name="living_area">100</field>
+        <field name="facades">4</field>
+        <field name="garage">1</field>
+        <field name="garden">1</field>
+        <field name="garden_area">100000</field>
+        <field name="garden_orientation">south</field>
+    </record> 
+
+    <record id="estate_property_demo_2" model="estate.property">
+        <field name="name">Trailer Home</field>
+        <field name="state">cancelled</field>
+        <field name="description">Home in trailer park.</field>
+        <field name="postcode">54321</field>
+        <field name="date_avaiblity">1970-01-01</field>
+        <field name="expected_price">100000.00</field>
+        <field name="selling_price">120000.00</field>
+        <field name="bedrooms">1</field>
+        <field name="living_area">10</field>
+        <field name="facades">4</field>
+        <field name="garage">0</field>
+        <field name="offer_ids"
+            eval="[
+            Command.create({
+                'partner_id': ref('base.res_partner_2'),
+                'price': 1500002,
+                'validity': 14,
+            }),
+            Command.create({
+                'partner_id': ref('base.res_partner_2'),
+                'price': 1500003,
+                'validity': 14,
+            }),
+            Command.create({
+                'partner_id': ref('base.res_partner_3'),
+                'price': 1500004,
+                'validity': 11,
+            }),
+        ]" />
+    </record>
+</odoo>

estate/demo/estate_property_offer.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+  <record id="estate_property_offer_1" model="estate.property.offer">
+    <field name="price">1000000000</field>
+    <field name="validity">14</field>
+    <field name="property_id" ref="estate_property_demo_1" />
+    <field name="partner_id" ref="base.res_partner_1" />
+  </record>
+  <record id="estate_property_offer_2" model="estate.property.offer">
+    <field name="price">1500000000000</field>
+    <field name="validity">14</field>
+    <field name="property_id" ref="estate_property_demo_1" />
+    <field name="partner_id" ref="base.res_partner_1" />
+  </record>
+  <record id="estate_property_offer_3" model="estate.property.offer">
+    <field name="price">15000000000001</field>
+    <field name="validity">11</field>
+    <field name="property_id" ref="estate_property_demo_1" />
+    <field name="partner_id" ref="base.res_partner_2" />
+  </record>
+  <function model="estate.property.offer" name="action_confirm">
+    <value eval="[ref('estate_property_offer_1')]" />
+  </function>
+  <function model="estate.property.offer" name="action_refuse">
+    <value eval="[ref('estate_property_offer_2')]" />
+  </function>
+  <function model="estate.property.offer" name="action_refuse">
+    <value eval="[ref('estate_property_offer_3')]" />
+  </function>
+</odoo>

estate/models/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+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 datetime import date
+from dateutil.relativedelta import relativedelta
+from odoo import fields, models, api
+from odoo.exceptions import UserError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate Property is defined"
+    _order = "id desc"
+    _sql_constraints = [
+        ('check_expectep_price', 'CHECK(expected_price > 0 AND selling_price > 0)',
+         'The Price must be positve.')
+    ]
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_avaiblity = fields.Date(copy=False, default=date.today() + relativedelta(months=3))
+    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()
+    property_type_id = fields.Many2one("estate.property.type", string="Property Type")
+    salesman_id = fields.Many2one('res.users', string='Salesman', index=True, default=lambda self: self.env.user)
+    buyer_id = fields.Many2one(
+    'res.partner',
+    string='Buyer',
+    index=True,
+    default=lambda self: self.env.user.partner_id.id
+    )
+    property_tag_ids = fields.Many2many("estate.property.tag")
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+    total_area = fields.Float(compute="_compute_total")
+    best_price = fields.Float(compute="_compute_best_price", string="Best Offer Price", readonly=True)
+    active = fields.Boolean(default=True)
+    company_id = fields.Many2one("res.company", required=True, default=lambda self: self.env.company)
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total(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:
+            if record.offer_ids:
+                record.best_price = max(record.offer_ids.mapped('price'))
+            else:
+                record.best_price = 0.0
+
+    garden_orientation = fields.Selection(
+        string='Direction',
+        selection=[('north', 'North'), ('south', 'South'), ('east', 'East'), ('west', 'West')],
+        help="This is used to locate garden's direction"
+    )
+
+    state = fields.Selection(
+        selection=[('new', 'New'), ('offer received', 'Offer Received'), ('offer accepted', 'Offer Accepted'), ('sold', 'Sold'), ('cancelled', 'Cancelled')],
+        default='new',
+        required=True,
+        copy=False,
+    )
+
+    @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_cancel(self):
+        for record in self:
+            if record.state == 'sold':
+                raise UserError("Sold properties cannot be cancelled.")
+            record.state = 'cancelled'
+
+    def action_sold(self):
+        for record in self:
+            if record.state == 'cancelled':
+                raise UserError("Cancelled properties cannot be marked as sold.")
+            record.state = 'sold'
+
+    @api.ondelete(at_uninstall=False)
+    def _check_state_delete(self):
+        for record in self:
+            if record.state not in ['new', 'cancelled']:
+                raise UserError("Only properties in 'New' or 'Cancelled' state can be deleted.")

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, ValidationError
+from odoo.tools import float_compare
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offers related to property are made"
+    _order = "price desc"
+    _sql_constraints = [
+        ('check_price', 'CHECK(price > 0)', 'The offer price must be greater than 0')
+    ]
+
+    price = fields.Float()
+    partner_id = fields.Many2one(
+        "res.partner", string='Partner', index=True, default=lambda self: self.env.user.partner_id.id
+    )
+    property_id = fields.Many2one("estate.property", index=True, required=True)
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(
+        string="Deadline",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+        store=True
+    )
+    property_type_id = fields.Many2one('estate.property.type', index=True)
+
+    @api.depends('create_date', 'validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            create_date = record.create_date or fields.Date.today()
+            record.date_deadline = create_date + timedelta(days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            create_date = record.create_date or fields.Date.today()
+            if record.date_deadline:
+                record.validity = (record.date_deadline.day - create_date.day)
+
+    status = fields.Selection(
+        selection=[('accepted', 'Accepted'), ('refused', 'Refuse')],
+        copy=False,
+    )
+
+    def action_confirm(self):
+        for record in self:
+            if any(
+                offer.status == 'accepted'
+                for offer in record.property_id.offer_ids
+            ):
+                raise UserError("Only one offer can be accepted per property.")
+            min_price = record.property_id.expected_price * 0.9
+            if float_compare(record.price, min_price, precision_digits=2) < 0:
+                raise ValidationError("Offer must be at least 90% of the expected price to be accepted.")
+            record.status = 'accepted'
+            record.property_id.state = 'offer accepted'
+            other_offers = record.property_id.offer_ids - record
+            other_offers.write({'status': 'refused'})
+            record.property_id.selling_price = record.price
+            record.property_id.buyer_id = record.partner_id
+
+    def action_refuse(self):
+        for record in self:
+            record.status = 'refused'
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            property_id = vals.get("property_id")
+            price = vals.get("price", 0.0)
+            if property_id:
+                property_obj = self.env["estate.property"].browse(property_id)
+                best_price = property_obj.best_price or 0.0
+                if price < best_price:
+                    raise UserError(
+                        "Offer price must be greater than or equal to the best offer price."
+                    )
+        records = super().create(vals_list)
+        for record in records:
+            if record.partner_id:
+                record.property_id.state = "offer received"
+        return records

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Tags of estate are defined"
+    _order = "name asc"
+    _sql_constraints = [
+        ('check_unique_name', 'UNIQUE(name)', 'The name of the tag should be unique')
+    ]
+
+    name = fields.Char(required=True)
+    color = fields.Integer()

estate/models/estate_property_type.py

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+from odoo import fields, models, api
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Type of estate is defined"
+    _order = "name asc"
+    _sql_constraints = [
+            ('check_unique_property_type', 'UNIQUE(name)', 'The Property type should be unique')
+        ]
+
+    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(string="Offer Count", compute="_compute_offer_count")
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = sum(len(property.offer_ids) for property in record.property_ids)

estate/models/res_users.py

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+from odoo import models, fields
+
+
+class ResUsers(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many('estate.property', 'salesman_id', domain=[('state', 'not in', ['sold', 'cancelled'])])

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_property_manager,access_estate_property_manager,model_estate_property,estate_group_manager,1,1,1,0
+access_property_type_manager,access_estate_property_type_manager,model_estate_property_type,estate_group_manager,1,1,1,1
+access_property_tag_manager,access_estate_property_tag_manager,model_estate_property_tag,estate_group_manager,1,1,1,1
+access_property_offer_manager,access_estate_property_offer_manager,model_estate_property_offer,estate_group_manager,1,1,1,1
+access_res_users_manager,access_res_users_manager,model_res_users,estate_group_manager,1,1,1,1
+access_property_agent,access_estate_property_agent,model_estate_property,estate_group_user,1,1,1,0
+access_property_offer_agent,access_estate_property_offer_agent,model_estate_property_offer,estate_group_user,1,1,1,0
+access_property_type_agent,access_estate_property_type_agent,model_estate_property_type,estate_group_user,1,0,0,0
+access_property_tag_agent,access_estate_property_tag_agent,model_estate_property_tag,estate_group_user,1,0,0,0

estate/security/security.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="estate_group_user" model="res.groups">
+        <field name="name">Agent</field>
+        <field name="comment">Real estate agents can manage the properties under their care, or properties which are not specifically under the care of any agent.</field>
+        <field name="category_id" ref="base.module_category_real_estate_brokerage"/>
+    </record>
+
+    <record id="estate_group_manager" model="res.groups">
+        <field name="name">Manager</field>
+        <field name="comment">Real estate managers can configure the system (manage available types and tags) as well as oversee every property in the pipeline.</field>
+        <field name="category_id" ref="base.module_category_real_estate_brokerage"/>
+        <field name="implied_ids" eval="[(4, ref('estate_group_user'))]"/>
+    </record>
+
+    <record id="company_rule_id" model="ir.rule">
+        <field name="name">company: see or modify properties of my company only</field>
+        <field name="model_id" ref="model_estate_property" />
+        <field name="perm_read" eval="True" />
+        <field name="perm_write" eval="True" />
+        <field name="perm_create" eval="True" />
+        <field name="perm_unlink" eval="False" />
+        <field name="groups" eval="[Command.link(ref('estate_group_user'))]" />
+        <field name="domain_force">[('company_id', '=', user.company_id.id)]</field>
+    </record>
+</odoo>