[ADD] estate: new module created

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Estate',
+    'version': '0.1',
+    'depends': ['base'],
+    'summary': 'Estate module',
+    'category': 'Tutorials/Estate',
+    'application': True,
+    'license': 'AGPL-3',
+    'data': [
+        'security/estate.security.xml',
+        '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_users_views.xml',
+        'data/master_data.xml',
+    ],
+    "demo": [
+        "demo/demo_data.xml",
+    ]
+}

estate/data/master_data.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="estate_property_type_1" model="estate.property.type">
+        <field name="name">Residential</field>
+    </record>
+    <record id="estate_property_type_2" model="estate.property.type">
+        <field name="name">Commercial</field>
+    </record>
+    <record id="estate_property_type_3" model="estate.property.type">
+        <field name="name">Industrial</field>
+    </record>
+    <record id="estate_property_type_4" model="estate.property.type">
+        <field name="name">Land</field>
+    </record>
+
+</odoo>

estate/demo/demo_data.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="estate_property_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_availability">2020-02-02</field>
+        <field name="expected_price">1600000</field>
+        <field name="bedrooms">6</field>
+        <field name="living_area">100</field>
+        <field name="facades">4</field>
+        <field name="garage">True</field>
+        <field name="garden">True</field>
+        <field name="garden_area">100000</field>
+        <field name="garden_orientation">south</field>
+        <field name="garden_orientation">south</field>
+        <field name="property_type_id" ref="estate.estate_property_type_1"/>
+    </record>
+
+    <record id="estate_property_2" model="estate.property">
+        <field name="name">Trailer home</field>
+        <field name="state">cancelled</field>
+        <field name="description">Home in a trailer park</field>
+        <field name="postcode">54321</field>
+        <field name="date_availability">1970-01-01</field>
+        <field name="expected_price">100000</field>
+        <field name="bedrooms">1</field>
+        <field name="living_area">10</field>
+        <field name="facades">4</field>
+        <field name="garage">False</field>
+        <field name="property_type_id" ref="estate.estate_property_type_1"/>
+
+        <field name="offer_ids" eval="[
+            Command.create({
+                'price': 10000,
+                'partner_id': ref('base.res_partner_12')
+            })
+        ]"/>
+
+
+    </record>
+
+    <record id="estate_property_offer_1" model="estate.property.offer">
+        <field name="price">10000</field>
+        <field name="validity">14</field>
+        <field name="date_deadline" eval="datetime.now().date() + timedelta(days=14)"/>
+        <field name="property_id" ref="estate.estate_property_1"/>
+        <field name="partner_id" ref="base.res_partner_12"/>
+    </record>
+
+    <record id="estate_property_offer_2" model="estate.property.offer">
+        <field name="price">1500000</field>
+        <field name="validity">14</field>
+        <field name="date_deadline" eval="datetime.now().date() + timedelta(days=14)"/>
+        <field name="property_id" ref="estate.estate_property_1"/>
+        <field name="partner_id" ref="base.res_partner_12"/>
+    </record>
+
+    <record id="estate_property_offer_3" model="estate.property.offer">
+        <field name="price">1500001</field>
+        <field name="validity">14</field>
+        <field name="date_deadline" eval="datetime.now().date() + timedelta(days=20)"/>
+        <field name="property_id" ref="estate.estate_property_1"/>
+        <field name="partner_id" ref="base.res_partner_2"/>
+    </record>
+
+    <!-- Accept offer -->
+    <function model="estate.property.offer" name="action_accept">
+        <value eval="[ref('estate.estate_property_offer_3')]"/>
+    </function>
+
+</odoo>

estate/models/__init__.py

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+from . import estate_property
+from . import estate_property_offer
+from . import estate_property_tag
+from . import estate_property_type
+from . import res_user

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, ValidationError
+from odoo.tools import float_compare, float_is_zero
+
+
+class EstateProperty(models.Model):
+    _name = 'estate.property'
+    _description = "Estate Property"
+    _order = "id desc"
+    _sql_constraints = [
+        ('check_expected_price', 'CHECK(expected_price >= 0)',
+         "The property expected price must be strictly positive."),
+        ('check_selling_price', 'CHECK(selling_price >= 0)',
+         "The property selling price must be positive."),
+    ]
+
+    name = fields.Char(required=True, string="Title")
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(copy=False,
+                                    default=lambda self: fields.Date.today() + relativedelta(months=3),
+                                    string="Available From")
+    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)")
+    garden_orientation = fields.Selection(
+        selection=[
+            ('north', "North"),
+            ('south', "South"),
+            ('east', "East"),
+            ('west', "West"),
+        ]
+    )
+
+    active = fields.Boolean(default=True)
+    state = fields.Selection(copy=False, default='new', required=True, string="Status",
+                             selection=[
+                                 ('new', "New"),
+                                 ('offer_received', "Offer Received"),
+                                 ('offer_accepted', "Offer Accepted"),
+                                 ('sold', "Sold"),
+                                 ('cancelled', "Cancelled"),
+                             ]
+                             )
+    property_type_id = fields.Many2one('estate.property.type', string="Property Type")
+    buyer_id = fields.Many2one('res.partner', string="Buyer")
+    salesman_id = fields.Many2one('res.users', string="Salesman", 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')
+    total_area = fields.Float(compute='_compute_total_area', string="Total Area (sqm)")
+    best_price = fields.Float(compute='_compute_best_price', string="Best Offer")
+
+    @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:
+            record.best_price = max(record.offer_ids.mapped('price'), default=0)
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_selling_price(self):
+        for record in self:
+            if (not float_is_zero(record.selling_price, precision_digits=2) and
+                    float_compare(record.selling_price, 0.9 * record.expected_price, precision_digits=2) < 0):
+                raise ValidationError(self.env._("The selling price must be at least 90% of the expected 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
+
+    @api.ondelete(at_uninstall=False)
+    def prevent_delete(self):
+        for record in self:
+            if record.state not in ('new', 'cancelled'):
+                raise UserError(self.env._("Only new and cancelled properties can be deleted."))
+
+    def action_set_sold(self):
+        for record in self:
+            if record.state == 'cancelled':
+                raise UserError(self.env._("Cancelled properties cannot be sold."))
+
+            if not any(offer.status == 'accepted' for offer in record.offer_ids):
+                raise UserError(self.env._("Properties without accepted offer cannot be sold"))
+
+            record.state = 'sold'
+        return True
+
+    def action_set_cancelled(self):
+        for record in self:
+            if record.state == 'sold':
+                raise UserError(self.env._("Sold properties cannot be cancelled."))
+            record.state = 'cancelled'
+        return True
+
+    def accept_offer(self, accepted_offer):
+        if self.state == 'offer_accepted':
+            raise UserError(self.env._("An offer has already been accepted."))
+        self.state = 'offer_accepted'
+        self.buyer_id = accepted_offer.partner_id
+        self.selling_price = accepted_offer.price
+        accepted_offer.status = 'accepted'
+
+        # Refuse other offers
+        for offer in self.offer_ids:
+            if offer != accepted_offer:
+                offer.status = 'refused'
+
+    def check_new_offer(self, offer_price):
+        self.state = 'offer_received'
+        if offer_price < min(self.offer_ids.mapped('price'), default=0):
+            raise UserError(self.env._("The offer price is less than the others."))
+        return True

estate/models/estate_property_offer.py

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+from datetime import timedelta
+from dateutil.utils import today
+
+from odoo import api, fields, models
+
+
+class EstatePropertyOffer(models.Model):
+    _name = 'estate.property.offer'
+    _description = "Estate Property Offer"
+    _order = "price desc"
+    _sql_constraints = [
+        ('check_price', 'CHECK(price >= 0)', "The offer price must be strictly positive.")
+    ]
+
+    price = fields.Float()
+    status = fields.Selection(
+        copy=False,
+        selection=[
+            ('accepted', "Accepted"),
+            ('refused', "Refused"),
+        ]
+    )
+    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, string="Validity (days)")
+    date_deadline = fields.Date(compute='_compute_date_deadline', inverse='_inverse_date_deadline', string="Deadline")
+
+    @api.depends('create_date', 'validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            create_date = record.create_date or 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 today()
+            record.validity = (record.date_deadline - create_date.date()).days
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            self.env['estate.property'].browse(vals['property_id']).check_new_offer(vals['price'])
+
+        return super().create(vals_list)
+
+    def action_accept(self):
+        for record in self:
+            self.property_id.accept_offer(record)
+        return True
+
+    def action_refuse(self):
+        for record in self:
+            record.status = 'refused'
+        return True

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = 'estate.property.tag'
+    _description = "Estate Property Tag"
+    _order = "name"
+    _sql_constraints = [
+        ('name_unique', 'unique(name)', "The tag name must be unique.")
+    ]
+
+    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"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer(default=1)
+
+    property_ids = fields.One2many('estate.property', 'property_type_id', string="Properties")
+    offer_ids = fields.One2many(comodel_name='estate.property.offer', inverse_name='property_type_id')
+
+    offer_count = fields.Integer(compute='_compute_offer_count', string="Offers")
+
+    @api.depends('property_ids')
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.property_ids)

estate/models/res_user.py

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+from odoo import models, fields
+
+
+class ResUsers(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many('estate.property', inverse_name='salesman_id',
+                                   domain=[('state', 'in', ['new', 'offer_received'])])

estate/security/estate.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="category_id" ref="base.module_category_tutorials_estate"/>
+    </record>
+
+    <record id="estate_group_manager" model="res.groups">
+        <field name="name">Manager</field>
+        <field name="category_id" ref="base.module_category_tutorials_estate"/>
+        <field name="implied_ids" eval="[(4, ref('estate_group_user'))]"/>
+    </record>
+
+    <record id="estate_property_rule_agent" model="ir.rule">
+        <field name="name">Agent rule</field>
+        <field name="model_id" ref="estate.model_estate_property"/>
+        <field name="groups" eval="[Command.link(ref('estate.estate_group_user'))]"/>
+        <field name="domain_force">[('salesman_id', 'in', [False, user.id])]</field>
+    </record>
+
+    <record id="estate_property_rule_manager" model="ir.rule">
+        <field name="name">Manager rule</field>
+        <field name="model_id" ref="estate.model_estate_property"/>
+        <field name="groups" eval="[Command.link(ref('estate.estate_group_manager'))]"/>
+        <field name="domain_force">[]</field>
+    </record>
+
+</odoo>

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_manager","access_estate_property_manager","model_estate_property","estate_group_manager",1,1,1,1
+"access_estate_property_type_manager","access_estate_property_type_manager","model_estate_property_type","estate_group_manager",1,1,1,1
+"access_estate_property_tag_manager","access_estate_property_tag_manager","model_estate_property_tag","estate_group_manager",1,1,1,1
+"access_estate_property_offer_manager","access_estate_property_offer_manager","model_estate_property_offer","estate_group_manager",1,1,1,1
+"access_estate_property","access_estate_property","model_estate_property","estate_group_user",1,1,1,0
+"access_estate_property_type","access_estate_property_type","model_estate_property_type","estate_group_user",1,0,0,0
+"access_estate_property_tag","access_estate_property_tag","model_estate_property_tag","estate_group_user",1,0,0,0
+"access_estate_property_offer","access_estate_property_offer","model_estate_property_offer","estate_group_user",1,1,1,0

estate/tests/__init__.py

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+from . import test_estate_property