gicha - Technical Training

.gitignore

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

estate/__init__.py

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

estate/__manifest__.py

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+{
+    "name": "estate",
+    "version": 1.0,
+    "depends": [
+        "base",
+    ],
+    "installable": True,
+    "application": True,
+    "data": [
+        # Access Rights
+        "security/ir.model.access.csv",
+        # Views
+        "views/estate_property_offer_views.xml",
+        "views/estate_property_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_users_views.xml",
+        "views/estate_menus.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 users

estate/models/estate_property.py

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+from odoo import models, fields, api
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate property"
+    _order = "id desc"
+
+    name = fields.Char(required=True, string="Title")
+    description = fields.Text()
+
+    postcode = fields.Char()
+    date_availability = fields.Datetime(
+        copy=False,
+        default=lambda self: fields.Datetime.add(fields.Datetime.today(), months=3),
+        string="Available From",
+    )
+
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(readonly=True, copy=False)
+    best_price = fields.Float(compute="_compute_best_price")
+
+    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(
+        string="Garden Orientation",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+    )
+
+    total_area = fields.Integer(compute="_compute_total_area", readonly=True)
+
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        string="Status",
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        default="new",
+    )
+
+    # Relations
+    property_type_id = fields.Many2one("estate.property.type", string="Type")
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    salesperson_id = fields.Many2one(
+        "res.users", string="Salesperson", default=lambda self: self.env.uid
+    )
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+
+    # Functions
+    @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"))
+                if record.state == "new":
+                    record.state = "offer_received"
+            else:
+                record.best_price = 0
+                record.state = "new"
+
+    @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 = ""
+
+    def action_sold_property(self):
+        for property in self:
+            if property.state == "cancelled":
+                raise UserError("Cancelled properties cannot be sold")
+            property.state = "sold"
+        return True
+
+    def action_cancel_property(self):
+        for property in self:
+            if property.state == "sold":
+                raise UserError("Sold properties cannot be cancelled")
+            property.state = "cancelled"
+        return True
+
+    @api.ondelete(at_uninstall=False)
+    def _check_unlink(self):
+        for property in self:
+            if property.state != "new" and property.state != "cancelled":
+                raise UserError("Only new and cancelled properties can be deleted!")
+
+    # Constraints
+    _check_positive_expected_price = models.Constraint(
+        "CHECK(expected_price > 0)",
+        "The expected price of a property must be strictly positive.",
+    )
+
+    _check_positive_selling_price = models.Constraint(
+        "CHECK(selling_price >= 0)", "The selling price of a property must be positive."
+    )
+
+    @api.constrains("selling_price")
+    def _check_selling_price(self):
+        for property in self:
+            if (
+                float_compare(
+                    property.selling_price, (0.9 * property.expected_price), 2
+                )
+                == -1
+            ):
+                raise ValidationError(
+                    "The selling price must be at least 90% of the expected price. You may decrease the expected price if you want to accept this offer."
+                )

estate/models/estate_property_offer.py

@@ -0,0 +1,80 @@
+from odoo import models, fields, api
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offer made for a property by a customer. The offer can be lower or higher than the expected price."
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        string="Status",
+        selection=[("accepted", "Accepted"), ("refused", "Refused")],
+        copy=False,
+    )
+    validity = fields.Integer(default=7, string="Validity (days)")
+    date_deadline = fields.Date(
+        compute="_compute_deadline", inverse="_inverse_deadline", string="Deadline"
+    )
+
+    # Relations
+    partner_id = fields.Many2one("res.partner", string="Partner")
+    property_id = fields.Many2one("estate.property", string="Property")
+    property_type_id = fields.Many2one(
+        related="property_id.property_type_id", stored=True
+    )
+
+    # Methods
+    @api.depends("validity")
+    def _compute_deadline(self):
+        for offer in self:
+            if offer.create_date:
+                offer.date_deadline = fields.Date.add(
+                    offer.create_date, days=offer.validity
+                )
+            else:
+                offer.date_deadline = fields.Date.add(
+                    fields.Date.today(), days=offer.validity
+                )  # Use today() instead of create_date to avoid crashing at record creation
+
+    def _inverse_deadline(self):
+        for offer in self:
+            offer.validity = (
+                offer.date_deadline - fields.Date.to_date(offer.create_date)
+            ).days
+
+    def action_accept_offer(self):
+        for offer in self:
+            if offer.property_id.state == "offer_accepted":
+                offer.status = "refused"
+                return True
+            offer.status = "accepted"
+            offer.property_id.selling_price = offer.price
+            offer.property_id.buyer_id = offer.partner_id
+            offer.property_id.state = "offer_accepted"
+        return True
+
+    def action_refuse_offer(self):
+        for offer in self:
+            if offer.status == "accepted":
+                offer.property_id.selling_price = 0
+                offer.property_id.buyer_id = ""
+            offer.status = "refused"
+        return True
+
+    @api.model
+    def create(self, vals):
+        for record in vals:
+            best_price = (
+                self.env["estate.property"].browse(record["property_id"]).best_price
+            )
+            if record["price"] < best_price:
+                raise UserError(f"The offer must be greater than {best_price}€")
+        return super().create(vals)
+
+    # Constraints
+    _check_positive_price = models.Constraint(
+        "CHECK(price > 0)",
+        "The expected price of a offer must be positive.",
+    )

estate/models/estate_property_tag.py

@@ -0,0 +1,15 @@
+from odoo import models, fields
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Tag to add to properties"
+    _order = "name asc"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    # Constraints
+    _check_unique_name = models.Constraint(
+        "UNIQUE(name)", "A property tag name should be unique"
+    )

estate/models/estate_property_type.py

@@ -0,0 +1,26 @@
+from odoo import models, fields, api
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Type of a property"
+    _order = "name asc"
+
+    name = fields.Char(required=True)
+    sequence = fields.Integer(
+        "Sequence", default=1, help="Use to order property types. Lower is better."
+    )
+
+    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")
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for type in self:
+            type.offer_count = len(type.offer_ids)
+
+    # Constraints
+    _check_unique_name = models.Constraint(
+        "UNIQUE(name)", "A property type name should be unique"
+    )

estate/models/users.py

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+from odoo import fields, models
+
+
+class User(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        "estate.property",
+        "salesperson_id",
+        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

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+<odoo>
+    <menuitem id="estate_menu_root" name="Estate" sequence="10">
+        <menuitem id="estate_menu" name="Advertisements">
+            <menuitem id="estate_property_menu_action" action="estate_property_action" />
+        </menuitem>
+        <menuitem id="estate_settings_menu" name="Settings">
+            <menuitem id="estate_property_type_menu_action" action="estate_property_type_action" />
+            <menuitem id="estate_property_tag_menu_action" action="estate_property_tag_action" />
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

@@ -0,0 +1,30 @@
+<odoo>
+    <!-- Views - List -->
+    <record id="estate_property_offer_view_list" model="ir.ui.view">
+        <field name="name">Offers</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <!-- List -->
+            <list string="Properties" editable="bottom"
+                decoration-success="status == 'accepted'"
+                decoration-danger="status == 'refused'">
+                <field name="price" />
+                <field name="partner_id" />
+                <field name="validity" />
+                <field name="date_deadline" />
+                <button name="action_accept_offer" string="" type="object" icon="fa-check"
+                    invisible="status == 'accepted' or status == 'refused'" />
+                <button name="action_refuse_offer" string="" type="object" icon="fa-times"
+                    invisible="status == 'accepted' or status == 'refused'" />
+                <field name="property_type_id" />
+            </list>
+        </field>
+    </record>
+
+    <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>
+</odoo>

estate/views/estate_property_tag_views.xml

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+<odoo>
+    <!-- Views - Form -->
+    <record id="estate_property_tag_view_form" model="ir.ui.view">
+        <field name="name">Property Tags</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <!-- Form -->
+            <form string="Property Tag">
+                <sheet>
+                    <div class="oe_title">
+                        <h1 class="mb32">
+                            <field name="name" class="mb16" />
+                        </h1>
+                    </div>
+                    <field name="color" />
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <!-- Actions -->
+    <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>