[ADD] estate : real estate module implementation

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': "Estate",
+    'version': '0.1',
+    'summary': "Real Estate Advertisement",
+    'description': """
+        This module allows you to manage real estate advertisements, including
+        properties, agents, and customer inquiries.
+    """,
+    'author': "aykhu",
+    'license': 'LGPL-3',
+    'website': "https://www.odoo.com/app/estate",
+    'category': 'Tutorials',
+    'application': True,
+    'depends': ['base', 'calendar'],
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_issue_views.xml',
+        'views/estate_property_visit_views.xml',
+        'views/estate_property_views.xml',
+        'views/estate_property_offer_views.xml',
+        'views/estate_property_type_views.xml',
+        'views/estate_property_tag_views.xml',
+        'views/estate_menus.xml',
+        'views/res_users_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
+from . import res_users
+from . import estate_property_visit
+from . import estate_property_issues

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.float_utils import float_compare, float_is_zero
+
+
+class EstateProperty(models.Model):
+    _name = 'estate.property'
+    _description = 'Estate Property'
+    _order = "id desc"
+
+    name = fields.Char(string='Title', required=True, default='Unknown')
+    description = fields.Text(string='Description')
+    postcode = fields.Char(string='Postal Code')
+    date_availability = fields.Date(
+        string='Available From', copy=False, default=lambda self: fields.Date.today() + relativedelta(months=3)
+    )
+    expected_price = fields.Float(string='Expected Price', required=True)
+    selling_price = fields.Float(
+        string='Selling Price', readonly=True, copy=False
+    )
+    living_area = fields.Integer(string='Living Area (sq m)')
+    bedrooms = fields.Integer(string='Bedrooms', default=2)
+    facades = fields.Integer(string='Facades')
+    has_garage = fields.Boolean(string="Has Garage ?")
+    has_garden = fields.Boolean(string="Has Garden ?")
+    garden_area = fields.Integer(string="Garden Area (sq m)")
+    active = fields.Boolean(string="Is Active ?", default=True)
+    garden_orientation = fields.Selection(
+        string="Garden Orientation",
+        selection=[
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West')
+        ],
+    )
+    state = fields.Selection(
+        string="Status",
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled")
+        ],
+        required=True, default="new", copy=False
+    )
+    property_type_id = fields.Many2one(
+        "estate.property.type", ondelete='cascade', string="Property Type"
+    )
+    salesperson_id = fields.Many2one(
+        "res.users", string="Sales Person", default=lambda self: self.env.user
+    )
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    property_tags_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")
+    best_price = fields.Float(
+        string="Best Offer", compute="_compute_best_price", store=True
+    )
+    visit_ids = fields.One2many('estate.property.visit', 'property_id')
+    issue_ids = fields.One2many('estate.property.issue', 'property_id')
+    issue_count = fields.Integer(compute='_compute_issue_count')
+
+    _check_expected_price = models.Constraint(
+        'CHECK(expected_price > 0)', 'Price must be strictly positive'
+    )
+
+    @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:
+            if record.offer_ids:
+                record.best_price = max(record.offer_ids.mapped("price"))
+            else:
+                record.best_price = 0.0
+
+    @api.depends('visit_ids')
+    def _compute_issue_count(self):
+        for record in self:
+            record.issue_count = len(record.issue_ids)
+
+    @api.onchange('has_garden')
+    def _onchange_garden(self):
+        if self.has_garden:
+            self.garden_area = 10
+            self.garden_orientation = 'north'
+        else:
+            self.garden_area = None
+            self.garden_orientation = None
+
+    @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_price = record.expected_price * 0.9
+            if float_compare(
+                record.selling_price,
+                min_price,
+                precision_digits=2
+            ) < 0:
+                raise ValidationError(
+                    "The selling price cannot be lower than 90% of the expected price."
+                )
+
+    def action_property_sold(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise UserError("Cancelled property cannot be set as sold.")
+            elif record.issue_ids.priority == '3' and record.issue_ids.state != "resolved":
+                raise UserError("High priority issue is still not resolved")
+            else:
+                record.state = "sold"
+        return True
+
+    def action_property_cancelled(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError("Sold property cannot be set as cancelled")
+            else:
+                record.state = "cancelled"
+        return True
+
+    @api.ondelete(at_uninstall=False)
+    def delete_state_check(self):
+        for record in self:
+            if record.state not in ('new', 'cancelled'):
+                raise UserError("Only New or Cancelled properties can be deleted")
+
+        return True

estate/models/estate_property_issues.py

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+from datetime import timedelta
+
+from odoo import api, fields, models
+
+AVAILABLE_PRIORITIES = [
+    ('1', 'Low'),
+    ('2', 'Medium'),
+    ('3', 'High'),
+]
+
+
+class EstatePropertyIssues(models.Model):
+    _name = 'estate.property.issue'
+    _description = "Raise and Manage issues in properties"
+
+    name = fields.Char(required=True)
+    property_id = fields.Many2one('estate.property', required=True)
+    reported_by = fields.Many2one('res.partner')
+    assigned_to = fields.Many2one('res.users')
+    issue_type = fields.Selection(
+        selection=[
+            ('plumbing', 'Plumbing'),
+            ('electrical', 'Electrical'),
+            ('structural', 'Structural'),
+            ('other', 'other'),
+        ],
+        required=True
+    )
+    state = fields.Selection(
+        string="Status",
+        selection=[
+            ("new", "New"),
+            ("in_progress", "In progress"),
+            ("resolved", "Resolved"),
+            ("cancelled", "Cancelled")
+        ],
+        default="new",
+    )
+    priority = fields.Selection(
+        AVAILABLE_PRIORITIES, compute="_compute_priority"
+    )
+    resolved_date = fields.Date()
+    description = fields.Text()
+    is_overdue = fields.Boolean(compute="_compute_is_overdue", default=False)
+
+    @api.depends('issue_type')
+    def _compute_priority(self):
+        for record in self:
+            if record.issue_type not in ('electrical', 'structural'):
+                record.priority = '1'
+            if record.issue_type == 'electrical':
+                record.priority = '2'
+            if record.issue_type == 'structural':
+                record.priority = '3'
+
+    @api.depends('create_date', 'priority', 'resolved_date')
+    def _compute_is_overdue(self):
+        priority_days = {
+            '3': 2,
+            '2': 5,
+            '1': 10,
+        }
+
+        for record in self:
+            start_date = record.create_date.date() if record.create_date else fields.Date.today()
+            resolve_date = record.resolved_date or fields.Date.today()
+            limit_days = priority_days.get(record.priority)
+
+            if (resolve_date - start_date) > timedelta(days=limit_days):
+                record.is_overdue = True
+            else:
+                record.is_overdue = False
+
+    @api.onchange('assigned_to')
+    def _check_state(self):
+        for record in self:
+            if record.assigned_to and record.state == "new":
+                record.state = "in_progress"
+
+    def action_set_resolved(self):
+        for record in self:
+            record.state = 'resolved'
+            if not record.resolved_date:
+                record.resolved_date = fields.Date.today()
+
+    def action_set_cancelled(self):
+        for record in self:
+            record.state = 'cancelled'

estate/models/estate_property_offer.py

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+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="Offer Price", required=True)
+    status = fields.Selection(
+        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(string="Validity (days)", default=7)
+    date_deadline = fields.Date(
+        string="Deadline", compute='_compute_date_deadline', inverse="_inverse_deadline",
+    )
+    property_type_id = fields.Many2one(related="property_id.property_type_id", store=True)
+
+    _check_offer_price = models.Constraint(
+        'CHECK (price > 0)', 'Offer price must be strictly positive'
+    )
+
+    @api.depends('create_date', 'validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            start_date = (
+                record.create_date.date() if record.create_date else fields.Date.today()
+            )
+            record.date_deadline = start_date + relativedelta(days=record.validity)
+
+    def _inverse_deadline(self):
+        for record in self:
+            start_date = (
+                record.create_date.date() if record.create_date else fields.Date.today()
+            )
+            record.validity = (record.date_deadline - start_date).days
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        for vals in vals_list:
+            current_price = vals.get('price')
+            property_id = self.env['estate.property'].browse(vals['property_id'])
+            for offer in property_id.offer_ids:
+                if current_price < offer.price:
+                    raise UserError("Offer Price cannot be less than previous offer prices")
+
+        offers = super().create(vals_list)
+
+        for offer in offers:
+            if offer.property_id.state == 'new':
+                offer.property_id.state = 'offer_received'
+
+        return offers
+
+    def action_accepted(self):
+        for record in self:
+            for offer in record.property_id.offer_ids:
+                if offer.status == "accepted":
+                    raise UserError(
+                        "Only 1 offer can be accepted for each property")
+            record.status = "accepted"
+            record.property_id.selling_price = record.price
+            record.property_id.buyer_id = record.partner_id
+            record.property_id.state = "offer_accepted"
+        return True
+
+    def action_refused(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 EstatePropertyTags(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(string="Name", required=True)
+    color = fields.Integer()
+
+    _unique_tag_name = models.Constraint('UNIQUE (name)', "Tag name must be unique")

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(string="Name", 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(compute='_compute_offer_count')
+
+    _unique_type_name = models.Constraint('UNIQUE(name)', "Type name must be unique")
+
+    @api.depends('offer_count')
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)