18.0 Technical onboarding guja

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+
+{
+    'name': "Real Estate",
+    'version': '1.0',
+    'depends': ['base'],
+    'author': "Odoo S.A.",
+    'category': 'Category',
+    'description': "Description text",
+    'website': 'https://www.odoo.com/page/estate',
+    'license': 'LGPL-3',
+
+    'data': [
+        'security/ir.model.access.csv',
+
+        'views/res_user_views.xml',
+        'views/estate_property_offers_views.xml',
+        'views/estate_property_types_views.xml',
+        'views/estate_property_tags_views.xml',
+        'views/estate_property_views.xml',
+        'views/estate_menus.xml'
+
+    ],
+    'application': True,
+    'installable': True
+}

estate/models/__init__.py

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+from . import estate_property, estate_property_type, estate_property_tag, estate_property_offer, res_users

estate/models/estate_property.py

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+from odoo import fields, models, api, exceptions
+from odoo.tools import float_is_zero, float_compare
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate property"
+    _order = "id desc"
+
+    active = fields.Boolean(default=True)
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Datetime(copy=False, default=fields.Datetime.add(fields.Datetime.now(), months=+3))
+    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()
+    garden_orientation = fields.Selection(
+        string='Orientation',
+        selection=[
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West'),
+        ],
+        help="What is the orientation of the facade of the property"
+    )
+    state = fields.Selection(
+        string='State',
+        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="Type")
+    user_id = fields.Many2one('res.users', string='Salesperson', default=lambda self: self.env.user)
+    partner_id = fields.Many2one('res.partner', string='Buyer', copy=False) 
+    property_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", readonly=True)
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.garden_area + record.living_area
+
+
+    best_price = fields.Float(compute="_compute_best_price", readonly=True)
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for record in self:
+            if len(record.offer_ids) > 0:
+                record.best_price = max(record.offer_ids.mapped('price'))
+            else:
+                record.best_price = 0.0
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden is True:
+            self.garden_area = 10
+            self.garden_orientation = 'north'
+        else:
+            self.garden_area = 0
+            self.garden_orientation = None
+
+    def sell_property(self):
+        if self.state == 'cancelled':
+            raise exceptions.UserError("Canceled properties cannot be sold.")
+        else:
+            self.state = 'sold'
+
+    def cancel_property(self):
+        if self.state == 'sold':
+            raise exceptions.UserError("Sold properties cannot be cancelled.")
+        else:
+            self.state = 'cancelled'
+
+
+    _sql_constraints = [
+        ('check_expected_price', 'CHECK(expected_price >= 0)',
+         'The expected price of a property must be positive.'),
+        ('check_selling_price', 'CHECK(selling_price >= 0)',
+         'The selling price of a property must be positive.')
+    ]
+
+    @api.constrains("selling_price")
+    def _check_selling_price(self):
+        for record in self:
+            if float_is_zero(record.selling_price, precision_digits=1):
+                return
+            min_price = record.expected_price * 0.9
+            if float_compare(record.selling_price, min_price, precision_digits=1) == -1:
+                raise exceptions.ValidationError("The selling price is too low.")
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_except_not_new_cancelled(self):
+        for record in self:
+            if record.state not in ('new', 'cancelled'):
+                raise exceptions.UserError("You can't delete a property unless it is new or cancelled.")
+            else:
+                return super().delete()

estate/models/estate_property_offer.py

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+from odoo import fields, models, api, exceptions
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Estate property offer"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        copy=False,
+        selection=[
+            ('accepted', 'Accepted'),
+            ('refused', 'Refused'),
+        ]
+    )
+
+    partner_id = fields.Many2one('res.partner', string='Buyer', required=True) 
+    property_id = fields.Many2one('estate.property', string="Property", required=True)
+
+    validity = fields.Integer(default=7)
+    create_date = fields.Date(default=fields.Date.today(), readonly=True)
+    date_deadline = fields.Date(compute="_compute_date_deadline", inverse="_inverse_date_deadline")
+
+    property_type_id = fields.Many2one(related="property_id.property_type_id", store=True)
+
+    @api.depends("validity", "create_date")
+    def _compute_date_deadline(self):
+        for record in self:
+            record.date_deadline = fields.Date.add(record.create_date, days=+record.validity)
+
+    @api.onchange("date_deadline")
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (record.date_deadline - record.create_date).days
+
+    def action_validate(self):
+        if self.property_id.state == 'offer-accepted':
+            raise exceptions.UserError("An offer has already been accepted.")
+        self.status = 'accepted'
+        self.property_id.state = 'offer-accepted'
+        self.property_id.selling_price = self.price
+        self.property_id.partner_id = self.partner_id
+
+    def action_refuse(self):
+        if self.status == 'accepted':
+            self.property_id.selling_price = 0.0
+            self.property_id.partner_id = None
+            self.property_id.state = 'offer-received'
+        self.status = 'refused'
+
+    @api.model_create_multi
+    def create(self, val_list):
+        for record in self.env['estate.property'].browse(val_list[0]['property_id']).offer_ids:
+            if record.price > val_list[0]['price']:
+                raise exceptions.UserError("The offer price is too low.")
+        offer = super().create(val_list)
+        if offer.property_id.state == 'new':
+            offer.property_id.state = 'offer-received'
+
+
+    _sql_constraints = [
+        ('check_price', 'CHECK(price >= 0)',
+         'The offer price of a property must be positive.') 
+    ]

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate property tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()
+
+    _sql_constraints = [
+        ('check_name', 'unique(name)',
+         'This tag already exists.') 
+    ]

estate/models/estate_property_type.py

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+from odoo import fields, models, api
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate property type"
+    _order = "name"
+
+    name = fields.Char(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', store=True)
+
+    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)
+
+    _sql_constraints = [
+        ('check_name', 'unique(name)',
+         'This type already exists.') 
+    ]
+
+class EstatePropertyTypeLine(models.Model):
+    _name = "estate.property.type.line"
+    _description = "Estate property type line"
+
+    property_id = fields.Many2one("estate.property")
+    name = fields.Char()
+    expected_price = fields.Float()
+    state = fields.Char()

estate/models/res_users.py

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+from odoo import fields, models
+
+class Users(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many(
+        comodel_name='estate.property',
+        inverse_name='user_id',
+        domain=['&', ('state', '!=', '"cancelled"'), ('state', '!=', '"sold"')],
+        string="Properties",
+    )

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,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_type_line,access_estate_property_type_line,model_estate_property_type_line,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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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <menuitem
+        id="estate_menu_root"
+        name="Real Estate">
+        <menuitem
+            id="estate_menu_advertisements"
+            name="Advertisements">
+            <menuitem
+                id="menu_estate_advertisements_properties"
+                name="Properties"
+                action="estate_action_advertisements">
+            </menuitem>
+        </menuitem>
+        <menuitem
+            id="estate_menu_settings"
+            name="Settings">
+            <menuitem
+                id="menu_estate_settings_property_types"
+                name="Property Types"
+                action="estate_action_property_types">
+            </menuitem>
+            <menuitem
+                id="menu_estate_settings_property_tags"
+                name="Property Tags"
+                action="estate_action_property_tags">
+            </menuitem>
+        </menuitem>
+    </menuitem>
+
+</odoo>

estate/views/estate_property_offers_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+
+<odoo>
+
+    <record id="estate_action_property_offers" model="ir.actions.act_window">
+        <field name="name">Property Offers</field>
+        <field name="res_model">estate.property.offer</field>
+        <field name="domain">[('property_type_id', '=', active_id)]</field>
+        <field name="view_mode">list</field>
+    </record>
+    <record id="estate_property_offer_view_list" 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>
+                <field name="partner_id"/>
+                <field name="price"/>
+                <field name="status"/>
+            </list>
+        </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tags_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+
+<odoo>
+
+    <record id="estate_action_property_tags" 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>
+    <record id="estate_property_tags_view_list" model="ir.ui.view">
+        <field name="name">estate.property.tag.list</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list editable="bottom">
+                <field name="name"/>
+            </list>
+        </field>
+    </record>
+
+</odoo>