leker - Technical training

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Real Estate',
+    'depends': ['base'],
+    'data': [
+        'security/ir.model.access.csv',
+        'views/base_res_users_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',
+        ],
+    'application': True,
+    'author': 'Odoo S.A.',
+    'license': 'LGPL-3',
+}

estate/models/__init__.py

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+from . import estate_property
+from . import estate_property_offer
+from . import estate_property_tag
+from . import estate_property_type
+from . import base_res_users

estate/models/base_res_users.py

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

estate/models/estate_property.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare
+
+
+class Property(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate property"
+    _order = "id desc"
+
+    name = fields.Char('Title', required=True, default='Unknown')
+    active = fields.Boolean('Active', default=True)
+    state = fields.Selection([
+        ('new', 'New'),
+        ('received offer', 'Received offer'),
+        ('offer accepted', 'Offer Accepted'),
+        ('sold', 'Sold'),
+        ('cancelled', 'Cancelled'),
+    ], string='Status', required=True, copy=False, default='new')
+    description = fields.Text('Description')
+    last_seen = fields.Datetime("Last Seen", default=lambda self: fields.Datetime.now())
+    postcode = fields.Char('Postcode')
+    date_availability = fields.Date('Available from', copy=False, default=lambda self: fields.Date.add(fields.Date.today(), months=3))
+    expected_price = fields.Float('Expected price', required=True)
+    selling_price = fields.Float('Selling price', readonly=True, copy=False)
+    bedrooms = fields.Integer('Bedrooms', default=2)
+    living_area = fields.Integer('Living area (sqm)')
+    facades = fields.Integer('Facades')
+    garage = fields.Boolean('Garage')
+    garden = fields.Boolean('Garden')
+    garden_area = fields.Integer('Garden area (sqm)')
+    garden_orientation = fields.Selection([
+        ('north', 'North'),
+        ('south', 'South'),
+        ('east', 'East'),
+        ('west', 'West'),
+    ], string='Garden Orientation')
+    total_area = fields.Integer(compute="_compute_total_area")
+    property_type_id = fields.Many2one('estate.property.type', string="Property Type")
+    salesperson_id = fields.Many2one('res.users', string="Salesperson", default=lambda self: self.env.user)
+    buyer_id = fields.Many2one('res.partner', string="Buyer", copy=False)
+    tag_ids = fields.Many2many('estate.property.tag', string="Tags")
+    offer_ids = fields.One2many('estate.property.offer', 'property_id', string="Offers")
+    best_price = fields.Float(compute="_compute_best_price")
+
+    # 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')
+    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_partner(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = 'north'
+        else:
+            self.garden_area = None
+            self.garden_orientation = None
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_property_new_or_cancelled(self):
+        for record in self:
+            if record.state not in ['new', 'cancelled']:
+                raise UserError(f"Can\'t delete property '{record.name}' if state is not New or Cancelled")
+
+    def action_sell_property(self):
+        for record in self:
+            if record.state == 'cancelled':
+                msg = "Cancelled properties cannot be sold."
+                raise UserError(msg)
+            record.state = 'sold'
+        return True
+
+    def action_cancel_property(self):
+        for record in self:
+            if record.state == 'sold':
+                msg = "Sold properties cannot be cancelled."
+                raise UserError(msg)
+            record.state = 'cancelled'
+        return True
+
+    # Constraints
+    _check_expected_price = models.Constraint('CHECK (expected_price > 0)', "A property expected price must be strictly positive")
+    _check_selling_price = models.Constraint('CHECK (selling_price >= 0)', "A property selling price must be positive")
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_selling_price_percentage(self):
+        for record in self:
+            if record.state == 'offer accepted' and float_compare(record.selling_price, 0.9 * record.expected_price, precision_digits=9) == -1:
+                msg = "The selling price cannot be lower than 90% of the expected price"
+                raise ValidationError(msg)

estate/models/estate_property_offer.py

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+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class PropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float(name="Price")
+    status = fields.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)
+    validity = fields.Integer(string="Validity (days)", default=7)
+    date_deadline = fields.Date(string="Deadline", compute="_compute_date_deadline", inverse="_inverse_date_deadline")
+    property_type_id = fields.Many2one(related="property_id.property_type_id", store=True)
+
+    # Functions
+    @api.depends('create_date', 'validity')
+    def _compute_date_deadline(self):
+        for record in self:
+            if record.create_date:
+                record.date_deadline = fields.Date.add(record.create_date, days=record.validity)
+            else:
+                record.date_deadline = fields.Date.add(fields.Date.today(), days=record.validity)
+
+    def _inverse_date_deadline(self):
+        for record in self:
+            record.validity = (record.date_deadline - record.create_date.date()).days
+
+    def action_accept(self):
+        for record in self:
+            if record.property_id.state == 'offer accepted' or record.property_id.state == 'sold':
+                msg = "An offer has already been accepted for this property!"
+                raise UserError(msg)
+            record.status = 'accepted'
+            record.property_id.state = 'offer accepted'
+            record.property_id.buyer_id = record.partner_id
+            record.property_id.selling_price = record.price
+        return True
+
+    def action_refuse(self):
+        for record in self:
+            record.status = 'refused'
+        return True
+
+    @api.model_create_multi
+    def create(self, vals):
+        offer = super().create(vals)
+        property_record = offer.property_id
+        if property_record.state == 'new':
+            property_record.state = 'received offer'
+        else:
+            if offer.price < property_record.best_price:
+                msg = "Your offer is lower than an existing offer!"
+                raise UserError(msg)
+        return offer
+
+    # Constraints
+    _check_offer_price = models.Constraint('CHECK (price > 0)', "An offer price must be strictly positive")

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class PropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Real Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(name="Name", required=True)
+    color = fields.Integer()
+
+    # Constraints
+    _check_unique_name = models.Constraint("UNIQUE(name)", "A property tag name must be unique")

estate/models/estate_property_type.py

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+from odoo import api, fields, models
+
+
+class PropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(name="Name", required=True)
+    sequence = fields.Integer('Sequence', default=1, help="Used to order stages. Lower is better.")
+    property_ids = fields.One2many("estate.property", "property_type_id", string="Properties")
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    offer_count = fields.Integer(compute="_compute_offer_count", string="N. of offers")
+
+    # Functions
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)
+
+    # Constraints
+    _check_unique_name = models.Constraint("UNIQUE(name)", "A property type name must be unique")

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
+estate.access_estate_property,access_estate_property,estate.model_estate_property,base.group_user,1,1,1,1
+estate.access_estate_property_type,access_estate_property_type,estate.model_estate_property_type,base.group_user,1,1,1,1
+estate.access_estate_property_tag,access_estate_property_tag,estate.model_estate_property_tag,base.group_user,1,1,1,1
+estate.access_estate_property_offer,access_estate_property_offer,estate.model_estate_property_offer,base.group_user,1,1,1,1

estate/views/base_res_users_views.xml

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+<?xml version="1.0"?>
+<odoo>
+    <record id="view_users_form" model="ir.ui.view">
+      <field name="name">res.users.form</field>
+      <field name="model">res.users</field>
+      <field name="inherit_id" ref="base.view_users_form"/>
+      <field name="arch" type="xml">
+          <xpath expr="//notebook" position="inside">
+            <page string="Real Estate Properties" name="estate_property">
+              <field name="property_ids"/>
+            </page>
+          </xpath>
+      </field>
+  </record>
+</odoo>

estate/views/estate_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+    <menuitem id="real_estate_menu_root" name="Real Estate">
+        <menuitem id="advertisements_first_level_menu" name="Advertisements">
+            <menuitem id="properties_model_menu_action" action="estate_property_action"/>
+        </menuitem>
+        <menuitem id="settings_first_level_menu" name="Settings">
+            <menuitem id="property_types_model_menu_action" action="estate_property_type_action"/>
+            <menuitem id="property_tags_model_menu_action" action="estate_property_tag_action"/>
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

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+<?xml version="1.0"?>
+<odoo>
+    <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="domain">[('property_type_id','=', active_id)]</field>
+        <field name="view_mode">list,form</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 string="Offer" 
+            editable="bottom"
+            decoration-danger="status=='refused'"
+            decoration-success="status=='accepted'">
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
+                <button name="action_accept" type="object" icon="fa-check" title="Accept" invisible="status in ['accepted', 'refused']"/>
+                <button name="action_refuse" type="object" icon="fa-times" title="Refuse" invisible="status in ['accepted', 'refused']"/>
+            </list>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

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+<?xml version="1.0"?>
+<odoo>
+    <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>
+
+    <record id="estate_property_tag_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 string="Tag" editable="bottom">
+                <field name="name"/>
+                <field name="color"/>
+            </list>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_type_views.xml

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+<?xml version="1.0"?>
+<odoo>
+    <record id="estate_property_type_action" model="ir.actions.act_window">
+        <field name="name">Property Types</field>
+        <field name="res_model">estate.property.type</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <record id="estate_property_type_view_list" model="ir.ui.view">
+        <field name="name">estate.property.type.list</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <list string="Property Type">
+                <field name="name"/>
+                <field name="sequence" widget="handle"/>
+                <field name="offer_count"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_type_view_form" model="ir.ui.view">
+        <field name="name">estate.property.type.form</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <form>
+                <button class="oe_stat_button" type="action" name="%(estate.estate_property_offer_action)d" string="Offers" icon="fa-money"/>
+                <div class="oe_title">
+                    <h1>
+                        <field name="name"/>
+                    </h1>
+                </div>
+                <notebook>
+                    <page string="Properties">
+                        <field name="property_ids">
+                            <list>
+                                <field name="name"/>
+                                <field name="expected_price"/>
+                                <field name="state"/>
+                            </list>
+                        </field>
+                    </page>
+                </notebook>
+            </form>
+        </field>
+    </record>
+</odoo>