Technical Training - Alecc

.gitignore

@@ -32,3 +32,5 @@ install/win32/meta.py
 /man/
 /share/
 /src/
+# Ignore Markdown files
+*.md

estate/__manifest__.py

@@ -1,11 +1,25 @@
 {
-    "name": "Estate",  # The name that will appear in the App list
-    "version": "16.0.0",  # Version
-    "application": True,  # This line says the module is an App, and not a module
-    "depends": ["base"],  # dependencies
+    "name": "Estate",
+    "version": "18.0.1.0.0",
+    "application": True,
+    "depends": ["base"],
     "data": [
+        # Security files first
+        "security/ir.model.access.csv",
 
+        # Data files in dependency order
+        # "data/estate_property_type_data.xml",  # Base data first
+        # "data/estate_property_tag_data.xml",   # Independent data
+        # "data/estate_property_offer_data.xml", # Depends on property types
+
+        # Views and menus last
+        "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",
     ],
     "installable": True,
-    'license': 'LGPL-3',
+    "license": "LGPL-3",
 }

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 +1,180 @@
+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"
+
+    # Basic fields
+    name = fields.Char(string="Title", required=True)
+    description = fields.Text(string="Description")
+    postcode = fields.Char(string="Postcode")
+    date_availability = fields.Date(
+        string="Available From",
+        copy=False,
+        default=lambda self: fields.Date.add(fields.Date.today(), months=3),
+    )
+    expected_price = fields.Float(string="Expected Price", required=True)
+    selling_price = fields.Float(string="Selling Price", readonly=True, copy=False)
+    bedrooms = fields.Integer(string="Bedrooms", default=2)
+    living_area = fields.Integer(string="Living Area (sqm)")
+    facades = fields.Integer(string="Facades")
+    garage = fields.Boolean(string="Garage")
+    garden = fields.Boolean(string="Garden")
+    garden_area = fields.Integer(string="Garden Area (sqm)")
+    garden_orientation = fields.Selection(
+        selection=[
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West')
+        ],
+        string="Garden Orientation"
+    )
+
+    # Reserved/common fields
+    active = fields.Boolean(string="Active", default=True)
+    state = fields.Selection(
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        string="Status",
+        required=True,
+        copy=False,
+        default="new",
+    )
+
+    # Relations
+    property_type_id = fields.Many2one(
+        comodel_name="estate.property.type",
+        string="Property Type",
+    )
+
+    # Parties
+    salesman_id = fields.Many2one(
+        comodel_name="res.users",
+        string="Salesman",
+        default=lambda self: self.env.user,
+    )
+    buyer_id = fields.Many2one(
+        comodel_name="res.partner",
+        string="Buyer",
+        copy=False,
+    )
+
+    tag_ids = fields.Many2many(
+        comodel_name="estate.property.tag",
+        string="Tags",
+    )
+
+    offer_ids = fields.One2many(
+        comodel_name="estate.property.offer",
+        inverse_name="property_id",
+        string="Offers",
+    )
+
+    # SQL constraints
+    _sql_constraints = [
+        (
+            "expected_price_strictly_positive",
+            "CHECK(expected_price > 0)",
+            "The expected price must be strictly positive.",
+        ),
+        (
+            "selling_price_positive",
+            "CHECK(selling_price >= 0)",
+            "The selling price must be positive.",
+        ),
+    ]
+
+    # Computed fields
+    total_area = fields.Integer(
+        string="Total Area (sqm)",
+        compute="_compute_total_area",
+        store=False,
+    )
+    best_price = fields.Float(
+        string="Best Offer",
+        compute="_compute_best_price",
+        store=False,
+    )
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self) -> None:
+        for property in self:
+            living = property.living_area or 0
+            garden = property.garden_area or 0
+            property.total_area = living + garden
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self) -> None:
+        for property in self:
+            prices = property.offer_ids.mapped("price")
+            property.best_price = max(prices) if prices else 0.0
+
+    @api.onchange("garden")
+    def _onchange_garden(self) -> None:
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    # CRUD methods (ORM overrides)
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_allowed(self):
+        for property in self:
+            if property.state not in ("new", "cancelled"):
+                raise UserError("You can only delete properties in New or Cancelled state. Consider archiving instead.")
+        # clean up children explicitly to avoid FK issues
+        self.mapped("offer_ids").unlink()
+
+    # Python-level validation for clearer errors in the UI
+    @api.constrains("expected_price")
+    def _check_expected_price_positive(self):
+        for property in self:
+            if property.expected_price is not None and property.expected_price <= 0:
+                raise ValidationError("The expected price must be strictly positive.")
+
+    @api.constrains("selling_price")
+    def _check_selling_price_non_negative(self):
+        for property in self:
+            if property.selling_price is not None and property.selling_price < 0:
+                raise ValidationError("The selling price must be positive.")
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price_threshold(self):
+        precision = 2
+        for property in self:
+            # Skip if no selling price yet
+            if property.selling_price is None or float_is_zero(property.selling_price, precision_digits=precision):
+                continue
+            # Require a valid expected price to compare against
+            if property.expected_price is None or not float_compare(property.expected_price, 0.0, precision_digits=precision) == 1:
+                # expected price not set/invalid; other constraints will catch it
+                continue
+            min_allowed = property.expected_price * 0.9
+            if float_compare(property.selling_price, min_allowed, precision_digits=precision) == -1:
+                raise ValidationError("The selling price cannot be lower than 90% of the expected price.")
+
+    # Action methods
+    def action_cancel(self):
+        self.ensure_one()
+        if self.state == "sold":
+            raise UserError("A sold property cannot be cancelled.")
+        self.state = "cancelled"
+        return True
+
+    def action_set_sold(self):
+        self.ensure_one()
+        if self.state == "cancelled":
+            raise UserError("A cancelled property cannot be sold.")
+        self.state = "sold"
+        return True

estate/models/estate_property_offer.py

@@ -0,0 +1,112 @@
+from odoo import models, fields, api
+from odoo.exceptions import UserError
+from datetime import date, timedelta
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float(string="Price")
+    status = fields.Selection(
+        selection=[("accepted", "Accepted"), ("refused", "Refused")],
+        string="Status",
+        copy=False,
+    )
+    partner_id = fields.Many2one("res.partner", string="Partner", required=True)
+    property_id = fields.Many2one(
+        "estate.property",
+        string="Property",
+        required=True,
+        ondelete="cascade",
+    )
+    property_type_id = fields.Many2one(
+        comodel_name="estate.property.type",
+        string="Property Type",
+        related="property_id.property_type_id",
+        store=True,
+    )
+
+    validity = fields.Integer(string="Validity (days)", default=7)
+    date_deadline = fields.Date(string="Deadline", compute="_compute_date_deadline", inverse="_inverse_date_deadline", store=False)
+
+    @api.depends("validity", "create_date")
+    def _compute_date_deadline(self) -> None:
+        for offer in self:
+            created = (offer.create_date or fields.Datetime.now())
+            base_date = created.date()
+            offer.date_deadline = base_date + timedelta(days=offer.validity or 0)
+
+    def _inverse_date_deadline(self) -> None:
+        for offer in self:
+            created = (offer.create_date or fields.Datetime.now())
+            base_date = created.date()
+            if offer.date_deadline:
+                delta = offer.date_deadline - base_date
+                offer.validity = max(delta.days, 0)
+
+    # Make the form reactive while editing (no need to wait for save)
+    @api.onchange("validity")
+    def _onchange_validity(self):
+        for offer in self:
+            created = (offer.create_date or fields.Datetime.now())
+            base_date = created.date()
+            offer.date_deadline = base_date + timedelta(days=offer.validity or 0)
+
+    @api.onchange("date_deadline")
+    def _onchange_date_deadline(self):
+        for offer in self:
+            if offer.date_deadline:
+                created = (offer.create_date or fields.Datetime.now())
+                base_date = created.date()
+                delta = offer.date_deadline - base_date
+                offer.validity = max(delta.days, 0)
+
+    # Actions on offers
+    def action_accept(self):
+        for offer in self:
+            if offer.property_id.state == "sold":
+                raise UserError("Cannot accept an offer on a sold property.")
+            # set other offers to refused
+            siblings = offer.property_id.offer_ids - offer
+            siblings.write({"status": "refused"})
+            offer.status = "accepted"
+            offer.property_id.write({
+                "buyer_id": offer.partner_id.id,
+                "selling_price": offer.price,
+                "state": "offer_accepted",
+            })
+        return True
+
+    def action_refuse(self):
+        self.status = "refused"
+        return True
+
+    # SQL constraints
+    _sql_constraints = [
+        (
+            "offer_price_strictly_positive",
+            "CHECK(price > 0)",
+            "The offer price must be strictly positive.",
+        ),
+    ]
+
+    # When an offer is created, mark the property as having an offer
+    @api.model_create_multi
+    def create(self, vals_list):
+        # Business rule: price must be strictly higher than any existing offer on the property
+        props = self.env["estate.property"]
+        for vals in vals_list:
+            property_id = vals.get("property_id")
+            if property_id:
+                prop = self.env["estate.property"].browse(property_id)
+                props |= prop
+                existing_max = max(prop.offer_ids.mapped("price") or [0.0])
+                if vals.get("price") is not None and vals["price"] <= existing_max:
+                    raise UserError("Offer must be higher than all existing offers for this property.")
+
+        records = super().create(vals_list)
+        # Set property state to Offer Received for affected properties
+        props.filtered(lambda p: p.state == "new").state = "offer_received"
+        return records

estate/models/estate_property_tag.py

@@ -0,0 +1,14 @@
+from odoo import models, fields
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(string="Name", required=True)
+    color = fields.Integer(string="Color")
+
+    _sql_constraints = [
+        ("estate_property_tag_name_uniq", "unique(name)", "Property tag name must be unique."),
+    ]

estate/models/estate_property_type.py

@@ -0,0 +1,33 @@
+from odoo import models, fields
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(string="Name", required=True)
+    sequence = fields.Integer(string="Sequence", default=10)
+
+    _sql_constraints = [
+        ("estate_property_type_name_uniq", "unique(name)", "Property type name must be unique."),
+    ]
+
+    # Inline list: related properties
+    property_ids = fields.One2many(
+        comodel_name="estate.property",
+        inverse_name="property_type_id",
+        string="Properties",
+    )
+
+    offer_ids = fields.One2many(
+        comodel_name="estate.property.offer",
+        inverse_name="property_type_id",
+        string="Offers",
+    )
+    offer_count = fields.Integer(string="Offers", compute="_compute_offer_count")
+
+    def _compute_offer_count(self):
+        for rec in self:
+            rec.offer_count = len(rec.offer_ids)
+