[ADD] estate: create the Estate Module

.gitignore

@@ -41,6 +41,7 @@ pip-delete-this-directory.txt
 htmlcov/
 .tox/
 .nox/
+.idea/
 .coverage
 .coverage.*
 .cache

estate/__init__.py

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

estate/__manifest__.py

@@ -0,0 +1,18 @@
+{
+    'name': 'Estate',
+    'version': '1.0',
+    'author': 'Abhi Bhingradiya(abbhi)',
+    'description': 'Real state app',
+    'license': 'LGPL-3',
+    'application': True,
+    'depends': ['base'],
+    '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_users_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 res_users

estate/models/estate_property.py

@@ -0,0 +1,143 @@
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError, RedirectWarning
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real state Property"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Integer()
+    date_availability = fields.Date(
+        default=lambda self: fields.Date.today() + relativedelta(months=3),
+        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(string="Garden Area(sqm)")
+    garden_orientation = fields.Selection(
+        string="Garden Orientation",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        required=True,
+        copy=False,
+        default="new",
+    )
+    property_type_id = fields.Many2one(
+        "estate.property.type",
+        string="Property Type"
+    )
+    buyer_id = fields.Many2one(
+        "res.partner",
+        string="Buyer",
+        copy=False,
+    )
+    seller_id = fields.Many2one(
+        "res.users",
+        string="Seller",
+        default=lambda self: self.env.user
+    )
+    tag_ids = fields.Many2many(
+        "estate.property.tag",
+        string="Tags"
+    )
+    offer_ids = fields.One2many(
+        "estate.property.offer",
+        "property_id",
+        string="Offers",
+    )
+    total_area = fields.Integer(compute="_compute_total_area", store=True)
+    best_price = fields.Float(compute="_compute_best_price", store=True)
+    offer_counts = fields.Integer(compute="_compute_offer_counts", store=True)
+
+    _check_expected_price = models.Constraint(
+        'CHECK(expected_price > 0)',
+        'Expected price must be positive!',
+    )
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_digits=2):
+                continue
+            min_selling_price = record.expected_price * 0.9
+            if float_compare(record.selling_price, min_selling_price, precision_digits=2) < 0:
+                raise ValidationError("The selling price must be at least 90% of the expected price.")
+
+    @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=0.0)
+
+    @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.depends("offer_ids")
+    def _compute_offer_counts(self):
+        for record in self:
+            record.offer_counts = len(record.offer_ids)
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_delete_property(self):
+        for record in self:
+            if record.state in ('offer_received', 'offer_accepted', 'sold'):
+                raise UserError('you can not delete a property!')
+
+    def action_cancelled(self):
+        for record in self:
+            sold_properties = record.filtered(lambda r: r.state == "sold")
+            if sold_properties:
+                raise RedirectWarning("A sold property cannot be cancelled",
+                                      self.env.ref('estate.estate_property_offer_action').id,
+                                      "go to offer page!")
+            record.state = "cancelled"
+
+    def action_sold(self):
+        for record in self:
+            cancel_properties = record.filtered(lambda r: r.state == "cancelled")
+            if cancel_properties:
+                raise UserError("A cancelled property cannot be sold")
+            accepted_offer = record.offer_ids.filtered(lambda offer: offer.status == "accepted")
+            if not accepted_offer:
+                raise UserError("Property can not be sold without an accepted offer")
+            record.state = "sold"

estate/models/estate_property_offer.py

@@ -0,0 +1,93 @@
+from dateutil.relativedelta import relativedelta
+
+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(string="Price")
+    status = fields.Selection([
+        ("accepted", "Accepted"),
+        ("rejected", "Rejected"),
+    ], copy=False, readonly=True)
+    partner_id = fields.Many2one("res.partner", required=True)
+    property_id = fields.Many2one(
+        "estate.property",
+        string="Property",
+        required=True
+    )
+    validity = fields.Integer(
+        string="Validity (days)",
+        default=7
+    )
+    date_deadline = fields.Date(
+        string="Deadline",
+        compute="_compute_date_deadline",
+        inverse="_inverse_date_deadline",
+        store=True
+    )
+    property_type_id = fields.Many2one(related="property_id.property_type_id", store=True)
+
+    _check_price = models.Constraint(
+        'CHECK(price > 0)',
+        'Offer price must be positive',
+    )
+
+    @api.model
+    def create(self, vals):
+        for val in vals:
+            property_id = val.get('property_id')
+            price = val.get('price')
+            if property_id and price:
+                property_rec = self.env['estate.property'].browse(property_id)
+                if property_rec.offer_ids:
+                    if price < property_rec.best_price:
+                        raise UserError(
+                            "The offer must be higher than existing offers."
+                        )
+        offer = super().create(vals)
+        if offer.property_id and offer.property_id.state == 'new':
+            offer.property_id.state = 'offer_received'
+        return offer
+
+    @api.depends("validity", "create_date")
+    def _compute_date_deadline(self):
+        for record in self:
+            if record.create_date:
+                record.date_deadline = record.create_date.date() + relativedelta(days=record.validity)
+            else:
+                record.date_deadline = fields.Date.today() + relativedelta(days=record.validity)
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_delete_offer(self):
+        for record in self:
+            if record.status == "accepted":
+                raise UserError("You can not delete a property with accepted offer")
+
+    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
+
+    def action_accepted(self):
+        for record in self:
+            if record.property_id.selling_price or record.status == "accepted":
+                raise UserError("Offer is already accepted")
+            record.status = "accepted"
+            rejected_offers = record.property_id.offer_ids.filtered(
+                lambda offer: offer.id != record.id
+            )
+            for ro in rejected_offers:
+                ro.status = "rejected"
+            record.property_id.buyer_id = record.partner_id
+            record.property_id.selling_price = record.price
+            record.property_id.state = "offer_accepted"
+
+    def action_rejected(self):
+        if self.status == "accepted":
+            self.property_id.selling_price = False
+        self.status = "rejected"

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 asc"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    _check_name_unique = models.Constraint(
+        'unique(name)',
+        'The Property Tag must be unique.',
+    )

estate/models/estate_property_type.py

@@ -0,0 +1,23 @@
+from odoo import api, fields, models
+
+
+class PropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer()
+    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')
+
+    _check_name_unique = models.Constraint(
+        'unique(name)',
+        'The Property type must be unique.',
+    )
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/res_users.py

@@ -0,0 +1,12 @@
+from odoo import models, fields
+
+
+class ResUsers(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many(
+        'estate.property',
+        'seller_id',
+        string="Owned Properties",
+        domain=['|', ('state', '=', 'new'), ('state', '=', '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 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <menuitem id="estate_menu_root"
+              name="Real Estate"/>
+
+    <menuitem id="estate_menu_advertisements"
+              name="Advertisements"
+              parent="estate_menu_root"
+              sequence="15"/>
+
+    <menuitem id="estate_menu_advertisements_properties"
+              name="Properties"
+              parent="estate_menu_advertisements"
+              action="estate_property_action"/>
+
+    <menuitem id="estate_menu_settings"
+              name="Settings"
+              parent="estate_menu_root"
+              sequence="16"/>
+
+    <menuitem id="estate_menu_settings_property_type"
+              name="Property Types"
+              parent="estate_menu_settings"
+              action="estate_property_type_action"/>
+
+    <menuitem id="estate_menu_settings_property_tag"
+              name="Property Tags"
+              parent="estate_menu_settings"
+              action="estate_property_tag_action"/>
+
+    <menuitem id="estate_menu_settings_property_offer"
+              name="Property Offers"
+              parent="estate_menu_settings"
+              action="estate_property_offer_action"/>
+</odoo>

estate/views/estate_property_offer_views.xml

@@ -0,0 +1,29 @@
+<?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>
+    </record>
+
+    <record id="estate_property_offer_action_by_type" 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_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 string="offers" editable="bottom" decoration-danger="status in ('rejected')"
+                  decoration-success="status in ('accepted')">
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
+            </list>
+        </field>
+    </record>
+</odoo>