[ADD] estate: add real estate advertisement module

.gitignore

@@ -127,3 +127,6 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+
+shop/

estate/__init__.py

@@ -0,0 +1 @@
+from . import models

estate/__manifest__.py

@@ -0,0 +1,18 @@
+{
+    'name': 'Estate',
+    'depends': ['base'],
+    'category': 'Tutorials',
+    'application': True,
+    'installable': True,
+    'author': 'vikvi',
+    'license': 'LGPL-3',
+    '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_menus.xml'
+    ],
+}

estate/models/__init__.py

@@ -0,0 +1,5 @@
+from .import estate_property
+from .import estate_property_type
+from .import estate_property_tag
+from .import estate_property_offer
+from .import inherit_res_users

estate/models/estate_property.py

@@ -0,0 +1,111 @@
+from odoo import _, api, fields, models
+from odoo.tools import date_utils, float_compare, float_is_zero
+
+from odoo.exceptions import UserError, ValidationError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate Property for purchasing and selling properties"
+    _order = "id desc"
+
+    name = fields.Char(required=True, string="Property Name")
+    description = fields.Char()
+    postcode = fields.Char()
+    date_availibility = fields.Date(copy=False, default=lambda x: fields.Date.today() + date_utils.get_timedelta(3, "month"))
+    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()
+    garden_orientation = fields.Selection(
+        selection=[
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West'),
+
+        ],
+        default='north'
+    )
+    state = fields.Selection(
+        selection=[
+            ('new', 'New'),
+            ('offer received', 'Offer received'),
+            ('offer accepted', 'Offer accepted'),
+            ('sold', 'Sold'),
+            ('cancelled', 'Cancelled')
+        ],
+        default='new'
+    )
+    active = fields.Boolean(default=True)
+    total_area = fields.Integer(compute='_compute_total_area')
+    best_price = fields.Float(compute='_compute_best_price', store=True)
+    property_type_id = fields.Many2one("estate.property.type")
+    tag_ids = fields.Many2many("estate.property.tag", string="Property Tags")
+    salesperson_id = fields.Many2one('res.users', default=lambda self: self.env.user)
+    buyer_id = fields.Many2one('res.partner', copy=False)
+    offer_ids = fields.One2many('estate.property.offer', 'property_id')
+
+    _check_positive = models.Constraint(
+        'check(expected_price > 0 )',
+        'Expected price  must be positive'
+    )
+
+    @api.depends('living_area', 'garden_area')
+    def _compute_total_area(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:
+            prices = record.offer_ids.mapped('price')
+
+            if prices:
+                record.best_price = max(prices)
+            else:
+                record.best_price = 0
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_selling_price_90(self):
+        if float_is_zero(self.selling_price, precision_digits=2):
+            return
+        if float_compare(self.selling_price, 0.9 * self.expected_price, precision_digits=2) == -1:
+            raise ValidationError(_('Offer price should not be lower then 90% of 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 = ""
+
+    @api.ondelete(at_uninstall=False)
+    def _prevent_property_deletion(self):
+        if self.state not in ['new', 'cancelled']:
+            raise UserError(_("You can only delete property if it's in either new or cancelled state"))
+        return True
+
+    def action_sold_property(self):
+        if self.state != 'offer accepted':
+            raise UserError(_("The property cannot be set as sold because the offer is not accepted yet."))
+            return False
+        if self.state == 'cancelled':
+            raise UserError(_("A cancelled property cannot be set as sold."))
+            return False
+
+        self.state = 'sold'
+        return True
+
+    def action_cancel_property(self):
+        if self.state == 'sold':
+            raise UserError(_("A sold property cannot be set as cancelled."))
+
+        self.state = 'cancelled'
+        return True

estate/models/estate_property_offer.py

@@ -0,0 +1,80 @@
+from odoo import fields, models, api, _
+from datetime import date, timedelta
+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([
+        ('accepted', "Accepted"),
+        ('refused', "Refused")
+    ], copy=False)
+    property_id = fields.Many2one('estate.property', required=True)
+    partner_id = fields.Many2one('res.partner', required=True)
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(compute='_compute_date_deadline', inverse='_inverse_validity')
+    property_type_id = fields.Many2one(related="property_id.property_type_id", string="Property Type", store=True)
+
+    _check_positive_offer = models.Constraint(
+        'CHECK(price > 0)',
+        'Offer price must be positive'
+    )
+
+    @api.depends('validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            create_date = record.create_date.date() if record.create_date else date.today()
+            record.date_deadline = create_date + timedelta(days=record.validity)
+
+    def _inverse_validity(self):
+        for record in self:
+            create_date = record.create_date.date() if record.create_date else date.today()
+            record.validity = (record.date_deadline - create_date).days
+
+    @api.model
+    def create(self, vals_list):
+        if vals_list:
+            record = self.env['estate.property'].browse(vals_list[0]['property_id'])
+            if vals_list[0].get("price", 0) < record.best_price:
+                raise UserError(_("Offer can't be created because current offer's amount is lower than an existing offer"))
+
+            if record.state != 'offer received':
+                record.state = 'offer received'
+        return super().create(vals_list)
+
+    def action_accept_offer(self):
+        for record in self.property_id.offer_ids:
+            if record.status == 'accepted':
+                raise UserError(_('Offer is already accepted'))
+        if self.property_id.state in ['sold', 'cancelled']:
+            raise UserError(_('The offer cannot be accepted because the property is already sold or cancelled'))
+
+        # method 1:to to refuse all the other offers
+        (self.property_id.offer_ids - self).status = 'refused'
+
+        # method 2
+        # (self.property_id.offer_ids - self).write({'status': 'refused'})
+
+        # method 3
+        # newl = self.property_id.offer_ids.mapped('id')
+        # records = self.env['estate.property.offer'].browse(newl) - self
+        # records.write({'status': 'refused'})
+
+        self.property_id.selling_price = self.price
+        self.property_id.buyer_id = self.partner_id
+        self.status = 'accepted'
+        self.property_id.state = 'offer accepted'
+        return True
+
+    def action_reject_offer(self):
+        if self.property_id.state in ['sold', 'cancelled']:
+            raise UserError(_('The offer cannot be refused because the property is already sold or cancelled'))
+
+        self.status = 'refused'
+        self.property_id.selling_price = 0
+        self.property_id.buyer_id = False
+        return True

estate/models/estate_property_tag.py

@@ -0,0 +1,15 @@
+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+    _order = 'name'
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    _unique_tag = models.Constraint(
+        'unique(name)',
+        'Property tag should be unique'
+    )

estate/models/estate_property_type.py

@@ -0,0 +1,23 @@
+from odoo import fields, models, api
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+    _order = 'sequence,name'
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer('sequence')
+    property_ids = fields.One2many('estate.property', 'property_type_id')
+    offer_ids = fields.One2many('estate.property.offer', "property_type_id")
+    offer_count = fields.Integer(compute='_compute_offer_count')
+
+    _unique_type = models.Constraint(
+        'unique(name)',
+        'Property type should be unique'
+    )
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for rec in self:
+            rec.offer_count = len(rec.offer_ids)

estate/models/inherit_res_users.py

@@ -0,0 +1,7 @@
+from odoo import fields, models
+
+
+class InheritedResUserModel(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many('estate.property', 'salesperson_id', domain=[('state', 'in', ['new', 'offer received'])])

estate/security/ir.model.access.csv

@@ -0,0 +1,5 @@
+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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <menuitem id="estate_root_menu" name="Real Estate">
+        <menuitem id="estate_first_level_menu" name="Advertisements">
+            <menuitem id="estate_property_menu_action" name="Properties" action="estate_property_action"/>
+        </menuitem>
+        <menuitem id="estate_setings_menu" name="Settings">
+            <menuitem id="estate_property_type_menu_action" name="Property Types" action="estate_property_type_action" />
+            <menuitem id="estate_property_tag_menu_action" name="Property Tags" action="estate_property_tag_action" />
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

@@ -0,0 +1,24 @@
+<?xml version='1.0' encoding='utf-8'?>
+
+<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>
+        <field name="domain">[('property_type_id', '=', active_id)]</field>
+    </record>
+
+    <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='property_type_id'/>
+                <field name='validity'/>
+                <field name='date_deadline'/>
+            </list>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='utf-8'?>
+
+<odoo>
+    <record id="estate_property_tag_action" model="ir.actions.act_window">
+        <field name="name">Property Tags</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

@@ -0,0 +1,52 @@
+<?xml version='1.0' encoding='utf-8'?>
+
+<odoo>
+    <record id="estate_property_type_action" model="ir.actions.act_window">
+        <field name="name">Property Types</field>
+        <field name="res_model">estate.property.type</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <record id="estate_property_type_view_list" model="ir.ui.view">
+        <field name="name">estate.property.type.list</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="sequence" widget="handle"/>
+                <field name='name'/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_proerty_type_view_form" model="ir.ui.view">
+        <field name="name">estate.property.type.form</field>
+        <field name="model">estate.property.type</field>
+        <field name='arch' type='xml'>
+            <form>
+                <sheet>
+                    <div name="button_box">
+                        <button type="action" name="%(estate_property_offer_action)d" icon="fa-usd">
+                            <field name="offer_count" string="Offers" widget="statinfo"/>
+                        </button>
+                    </div>
+                    <div class="oe_title">
+                        <h1>
+                            <field name="name" />
+                        </h1>
+                    </div>
+                    <notebook>
+                        <page string = "Properties">
+                            <field name="property_ids" readonly="1">
+                                <list >
+                                    <field name="name" />
+                                    <field name="expected_price" />
+                                    <field name="state" string="Status" />
+                                </list>
+                            </field>
+                        </page>
+                    </notebook>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>