19.0: Onboarding bepro

.vscode/tutorials.code-workspace

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+{
+	"folders": [
+		{
+			"path": ".."
+		},
+		{
+			"path": "../../odoo"
+		}
+	],
+	"settings": {
+		"python.languageServer": "None",
+	},
+	"launch": {
+		"version": "0.2.0",
+		"configurations": [
+			{
+				"name": "Odoo onboarding",
+				"type": "debugpy",
+				"request": "launch",
+				"program": "${workspaceFolder:odoo}/odoo-bin",
+				"args": [
+					"--addons-path=addons/,../enterprise,../tutorials/",
+					"-d", "19.0-onboarding", "-u", "estate"
+				],
+				"cwd": "${workspaceFolder:odoo}",
+				"console": "integratedTerminal"
+			}
+		]
+	}
+}

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': "Real Estate",
+    'depends': ['base'],
+    'author': 'bepro',
+    'license': 'LGPL-3',
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_views.xml',
+        'views/estate_menus.xml',
+        'views/res_user_views.xml',
+    ],
+}

estate/models/__init__.py

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+from . import property, property_offer, property_tag, property_type, res_user

estate/models/property.py

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+from odoo import _, api, exceptions, fields, models
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+
+class Property(models.Model):
+    _name = "estate.property"
+    _description = "Properties of our managed estates"
+    _order = "id desc"
+
+    _check_positive_amounts = models.Constraint(
+        'CHECK ('
+        'expected_price >= 0 AND selling_price >= 0'
+        ' AND living_area >= 0 AND facades >= 0'
+        ' AND garden_area >= 0'
+        ')', 'Values must be positive!')
+
+    name = fields.Char(string='Title', default="Unknown", required=True)
+    active = fields.Boolean(default=True)
+    state = fields.Selection(required=True, default='new', copy=False, selection=[
+        ('new', 'New')
+        , ('offer_received', 'Offer Received')
+        , ('offer_accepted', 'Offer Accepted')
+        , ('sold', 'Sold')
+        , ('cancelled', 'Cancelled'),
+    ])
+    property_type_id = fields.Many2one("estate.property.type", string="Property Type")
+    salesman_id = fields.Many2one('res.users', string="Salesman", default=lambda self: self.env.user)
+    buyer_id = fields.Many2one('res.partner', string="Buyer", copy=False)
+    tag_ids = fields.Many2many("estate.property.tag")
+    offer_ids = fields.One2many("estate.property.offer", "property_id")
+
+    description = fields.Text(string='description')
+    postcode = fields.Char(string='postcode')
+    date_availability = fields.Date(string='Available from', default=lambda _: fields.Date.add(fields.Date.today(), months=3), copy=False)
+    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 size')
+    facades = fields.Integer(string='# facades')
+    garage = fields.Boolean(string='Has garage')
+    garden = fields.Boolean(string='Has garden')
+    garden_area = fields.Integer(string='garden area size')
+    garden_orientation = fields.Selection(string='garden orientation',
+    selection=[
+        ('north', 'North')
+        , ('south', 'South')
+        , ('east', 'East')
+        , ('west', 'West')])
+
+    total_area = fields.Float(string="Total area", compute="_compute_total_area")
+    best_price = fields.Float(string="Best offer", compute="_compute_best_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:
+            if record.offer_ids:
+                record.best_price = max(record.offer_ids.mapped("price"))
+            else:
+                record.best_price = 0
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        for record in self:
+            record.garden_area = 10 if record.garden else 0
+            record.garden_orientation = 'north' if record.garden else None
+
+    def action_sold(self):
+        for record in self:
+            if record.state == 'cancelled':
+                raise exceptions.UserError(_("Cancelled properties cannot be sold!"))
+            #
+            record.state = "sold"
+        return True
+
+    def action_cancelled(self):
+        for record in self:
+            if record.state == "sold":
+                raise exceptions.UserError(_("Sold properties cannot be cancelled!"))
+            #
+            record.state = "cancelled"
+        return True
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_selling_price(self):
+        for property in self:
+            if float_is_zero(property.selling_price, 2):
+                return
+            if float_compare(property.selling_price, 0.9 * property.expected_price, 2) == -1:
+                raise exceptions.ValidationError(_("The accepted price is less than 90% of the expected price!"))
+
+    def confirm_offer(self):
+        for property in self:
+            accepted_offer = property.offer_ids.filtered(lambda r: r.status == 'accepted')
+            accepted_offer.ensure_one()
+            property.selling_price = accepted_offer.price
+            property.buyer_id = accepted_offer.partner_id
+            property.state = 'offer_accepted'
+            # Refuse all other offers
+            (property.offer_ids - accepted_offer).action_cancel()
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_draft(self):
+        for record in self:
+            if record.state not in ['new', 'cancelled']:
+                raise exceptions.ValidationError(_("Only properties in state New or Cancelled can be deleted!"))
+
+    def _set_offer_received(self):
+        self.ensure_one()
+        if self.state == 'new':
+            self.state = 'offer_received'

estate/models/property_offer.py

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+import datetime as dt
+from math import floor
+
+from odoo import _, api, fields, models
+from odoo.exceptions import UserError, ValidationError
+
+
+class PropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Bids for a property"
+    _order = "price desc"
+
+    _check_positive_amounts = models.Constraint('CHECK(price >= 0)')
+
+    price = fields.Float(string="Price", required=True)
+    status = fields.Selection(string="Status", copy=False
+        , selection=[('accepted', 'Accepted'), ('refused', 'Refused')])
+
+    partner_id = fields.Many2one("res.partner", required=True)
+    property_id = fields.Many2one("estate.property", required=True)
+    property_type_id = fields.Many2one(related="property_id.property_type_id", store=True)
+    validity = fields.Integer(string="Validity of offer", default=7)
+    date_deadline = fields.Date(string="Offer expiry", compute="_compute_date_deadline", inverse="_inverse_date_deadline")
+
+    @api.depends("create_date", "validity")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = None
+            if record.create_date and record.validity:
+                record.date_deadline = fields.Date.add(record.create_date, days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            if record.date_deadline:
+                raw_difference = record.date_deadline - (record.create_date.date() or fields.Date.today())
+                difference = raw_difference.total_seconds()
+                if difference > 0:
+                    record.validity = floor(difference / dt.timedelta(days=1).total_seconds())
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        # Precondition: price and property_id are required fields
+        for vals in vals_list:
+            property = self.env["estate.property"].browse(vals["property_id"])
+            property.ensure_one()
+            # Hook-approach (for composability)
+            property._set_offer_received()
+            max_peer_offer_price = max(property.offer_ids.mapped('price'), default=None)
+            if max_peer_offer_price and max_peer_offer_price > vals['price']:
+                raise UserError(_("New offer price must be higher than those of pre-existing offers!"))
+        #
+        return super().create(vals_list)
+
+    @api.constrains('status')
+    def _check_maximum_one_offer_accepted(self):
+        for record in self:
+            peer_offers = record.property_id.offer_ids
+            accepted_peers = peer_offers.filtered(lambda r: r.status == 'accepted')
+            if len(accepted_peers) > 1:
+                raise ValidationError(_("A single offer can be accepted at a time!"))
+
+    def action_confirm(self):
+        for record in self:
+            if record.status == "refused":
+                raise UserError(_("Offer is already refused!"))
+            #
+            record.status = 'accepted'
+            record.property_id.confirm_offer()
+        return True
+
+    def action_cancel(self):
+        for record in self:
+            if record.status == "accepted":
+                raise UserError(_("Offer is already accepted!"))
+            #
+            record.status = "refused"
+        return True

estate/models/property_tag.py

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+from odoo import fields, models
+
+
+class PropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Tag assigned to property"
+    _order = "name"
+
+    _name_idx = models.UniqueIndex('(name)', 'Another record already exists with the same name!')
+
+    name = fields.Char(string='Name', required=True)
+    color = fields.Integer(string='Color')

estate/models/property_type.py

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+from odoo import api, fields, models
+
+
+class PropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Type of property"
+    _order = "name"
+
+    _name_idx = models.UniqueIndex('(name)', 'Another record already exists with the same name!')
+
+    name = fields.Char(string='Name', required=True)
+    sequence = fields.Integer('Sequence', default=1)
+
+    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 record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/res_user.py

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+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many("estate.property", "salesman_id", domain="[('state', 'in', ['new', 'offer_received'])]")

estate/security/ir.model.access.csv

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+id,name,model_id/id,group_id/id,perm_read,perm_write,perm_create,perm_unlink
+access_estate_property_model,access_estate_property_model,estate.model_estate_property,base.group_user,1,1,1,1
+access_estate_property_type_model,access_estate_property_type_model,estate.model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag_model,access_estate_property_tag_model,estate.model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer_model,access_estate_property_offer_model,estate.model_estate_property_offer,base.group_user,1,1,1,1

estate/views/estate_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+<menuitem id="estate_menu_root" name="Estate">
+    <menuitem id="estate_first_level_menu" name="Advertisements">
+        <menuitem id="estate_properties_menu_action" action="estate_properties_view"/>
+    </menuitem>
+
+    <menuitem id="estate_settings_menu" name="Settings">
+        <menuitem id="estate_properties_types_menu_action" action="estate_properties_types_view"/>
+        <menuitem id="estate_properties_tags_menu_action" action="estate_properties_tags_view"/>
+    </menuitem>
+</menuitem>
+
+</odoo>