[ADD] estate module

.gitignore

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

estate/__init__.py

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

estate/__manifest__.py

@@ -0,0 +1,17 @@
+{
+    'name': 'estate',
+    'license': 'AGPL-3',
+    'depends': [
+        'base'
+    ],
+    'data': [
+        'ir.model.access.csv',
+        'views/estate_custom_user_views.xml',
+        'views/estate_property_offer_views.xml',
+        'views/estate_property_type_views.xml',
+        'views/estate_property_tag_views.xml',
+        'views/estate_property_views.xml',
+        'views/estate_menus.xml',
+    ],
+    'application': True
+}

estate/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_property_model,access_property_model,model_estate_property,base.group_user,1,1,1,1
+access_property_type_model,access_property_type_model,model_estate_property_type,base.group_user,1,1,1,1
+access_property_tag_model,access_property_tag_model,model_estate_property_tag,base.group_user,1,1,1,1
+access_property_offer_model,access_property_offer_model,model_estate_property_offer,base.group_user,1,1,1,1

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 estate_custom_users

estate/models/estate_custom_users.py

@@ -0,0 +1,8 @@
+from odoo import models, fields
+
+
+class EstateCustomUsers(models.Model):
+    _inherit = 'res.users'
+
+    property_ids = fields.One2many("estate.property", inverse_name='salesperson_id', string="Available Properties",
+                                   domain=[('state', 'in', ['new', 'offer_received'])])

estate/models/estate_property.py

@@ -0,0 +1,113 @@
+from datetime import datetime, timedelta
+from odoo import api, fields, models, exceptions, tools
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Property's properties"
+    _order = "id desc"
+    _sql_constraints = [
+        ('check_expected_price', 'CHECK (expected_price > 0)', "The expected price must be greater than 0"),
+        ('check_selling_price', 'CHECK (selling_price >= 0)', "The selling price must be greater or equal to 0"),
+    ]
+
+    name = fields.Char('Property name', required=True, default='Unknown')
+    description = fields.Text('Property Description')
+    postcode = fields.Char('Postcode')
+    date_availability = fields.Date('Availability', copy=False,
+                                    default=lambda self: datetime.now() + timedelta(days=90))
+    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')
+    garden_orientation = fields.Selection([('north', 'North'), ('east', 'East'), ('south', 'South'), ('west', 'West')],
+                                          default='north')
+    active = fields.Boolean('Active', default=True)
+    state = fields.Selection([
+        ('new', 'New'), ('offer_received', 'Offer Received'), ('offer_accepted', 'Offer accepted'), ('sold', 'Sold'),
+        ('cancelled', 'Cancelled')
+    ], default='new', required=True, copy=False)
+
+    total_area = fields.Float('Total Area', compute='_compute_total_area')
+    best_price = fields.Float('Best Offer', compute='_compute_best_price')
+    is_state_set = fields.Boolean('Is State Set', compute='_compute_is_state_set')
+
+    property_type_id = fields.Many2one('estate.property.type', string="Property Type")
+    buyer_id = fields.Many2one("res.partner", string="Buyer")
+    salesperson_id = fields.Many2one("res.users", string="Salesman", default=lambda self: self.env.user)
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total_area(self):
+        for record in self:
+            record.total_area = record.garden_area + record.living_area
+
+    @api.depends("offer_ids")
+    def _compute_best_price(self):
+        for record in self:
+            best_offer = record.get_best_offer()
+            if best_offer is None:
+                record.best_price = 0
+                continue
+            record.best_price = best_offer.price
+
+    def get_best_offer(self):
+        if len(self.offer_ids) == 0:
+            return None
+        return self.offer_ids.sorted(lambda offer: offer.price)[-1]
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        for record in self:
+            if record.garden:
+                record.garden_orientation = 'North'
+                record.garden_area = 10
+            else:
+                record.garden_orientation = None
+                record.garden_area = 0
+
+    def action_sold(self):
+        valid_records = self.filtered(lambda r: r.state != 'cancelled')
+        if not valid_records:
+            raise exceptions.UserError(self.env._("Can't sell a cancelled offer"))
+        for record in valid_records:
+            best_offer = record.get_best_offer()
+            if best_offer is None:
+                raise exceptions.UserError(self.env._("The offers for property %s are empty", record.name))
+            record.mark_as_sold(best_offer)
+
+    def mark_as_sold(self, offer):
+        offer.status = 'accepted'
+        self.state = 'sold'
+        self.buyer_id = offer.partner_id
+        self.selling_price = offer.price
+
+    def action_cancelled(self):
+        for record in self:
+            if record.state == 'sold':
+                raise exceptions.UserError(self.env._("Can't cancel a sold offer"))
+            record.state = 'cancelled'
+
+    @api.constrains('selling_price', 'expected_price')
+    def _check_prices(self):
+        for record in self:
+            if not tools.float_is_zero(record.selling_price, 3) and record.selling_price < record.expected_price * 0.9:
+                raise exceptions.ValidationError(
+                    self.env._("The selling price cannot be lower than 90%% of the expected price (min %d€)",
+                               record.expected_price * 0.9))
+
+    @api.depends('state')
+    def _compute_is_state_set(self):
+        for record in self:
+            record.is_state_set = record.state == 'cancelled' or record.state == 'sold'
+
+    @api.ondelete(at_uninstall=False)
+    def _on_delete(self):
+        for record in self:
+            if not (record.state in ('cancelled', 'new')):
+                raise exceptions.UserError(self.env._("Can only delete a 'New' or 'Cancelled' property (this property is '%s').", record.state))

estate/models/estate_property_offer.py

@@ -0,0 +1,63 @@
+from datetime import timedelta
+
+from odoo import api, fields, models, exceptions
+
+
+class EstatePropertyOffer(models.Model):
+    _name = 'estate.property.offer'
+    _description = 'An offer'
+    _order = 'price desc'
+    _sql_constraints = [
+        ('check_price', 'CHECK (price > 0)', 'The price must be greater than 0'),
+    ]
+
+    price = fields.Float("Price", required=True)
+    status = fields.Selection([('accepted', 'Accepted'), ('refused', 'Refused')], copy=False)
+    offer_date = fields.Date(string="Creation Date", default=lambda self: fields.Date.today())
+    validity = fields.Integer("Validity (days)")
+
+    date_deadline = fields.Date("Deadline", readonly=False, compute="_compute_date_deadline",
+                                inverse='_compute_date_deadline_inverse')
+
+    partner_id = fields.Many2one('res.partner', string="Partner", required=True)
+    property_id = fields.Many2one('estate.property', string="Property", required=True)
+    property_type_id = fields.Many2one('estate.property.type', string="Property Type",
+                                       related='property_id.property_type_id')
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for offer in self:
+            if offer.offer_date is not None:
+                offer.date_deadline = fields.Date.to_date(offer.offer_date) + timedelta(days=offer.validity)
+
+    def _compute_date_deadline_inverse(self):
+        for offer in self:
+            offer.validity = (fields.Date.to_date(offer.date_deadline) - fields.Date.to_date(offer.offer_date)).days
+
+    def action_accepted(self):
+        for offer in self:
+            for prop_offer in offer.property_id.offer_ids:
+                if prop_offer.status == 'accepted':
+                    raise exceptions.UserError(self.env._(
+                        "Can't accept an offer when another offer has already been accepted for this property."))
+            offer.property_id.mark_as_sold(self)
+            offer.status = 'accepted'
+
+    def action_refused(self):
+        for offer in self:
+            offer.status = 'refused'
+
+    @api.model_create_multi
+    def create(self, val_list):
+        for val in val_list:
+            property = self.env['estate.property'].browse(val['property_id'])
+            property.state = "offer_received"
+
+            best_offer = property.get_best_offer()
+            if best_offer is None:
+                continue
+            if best_offer.price > val['price']:
+                raise exceptions.UserError(self.env._(
+                    f"Can't create an offer with a lower price than the best offer for this property (current best "
+                    f"price is {best_offer.price}€)."))
+        return super().create(val_list)

estate/models/estate_property_tag.py

@@ -0,0 +1,13 @@
+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = 'estate.property.tag'
+    _description = 'A tag'
+    _order = "name asc"
+    _sql_constraints = [
+        ('check_unicity', 'UNIQUE (name)', 'A tag with the same name already exists'),
+    ]
+
+    name = fields.Char('Name', required=True)
+    color = fields.Integer('Color')

estate/models/estate_property_type.py

@@ -0,0 +1,22 @@
+from odoo import fields, models, api
+
+
+class EstatePropertyType(models.Model):
+    _name = 'estate.property.type'
+    _description = 'Type of a property'
+    _order = "sequence, name asc"
+    _sql_constraints = [
+        ('check_unicity', 'UNIQUE (name)', 'A property type with the same name already exists'),
+    ]
+
+    name = fields.Char('Property Type', required=True)
+    sequence = fields.Integer('Sequence', default=1, help="Used to order types. Lower is better.")
+
+    property_ids = fields.One2many('estate.property', 'property_type_id', string='Properties')
+    offer_ids = fields.One2many('estate.property.offer', 'property_type_id', string='Offers')
+    offer_count = fields.Integer('Offer Count', 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/views/estate_custom_user_views.xml

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+<odoo>
+    <record id="estate_custom_users_view_form" model="ir.ui.view">
+        <field name="name">estate.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="//page[@name='preferences']" position="after">
+                <page string="Available Properties">
+                    <field name="property_ids"/>
+                </page>
+            </xpath>
+        </field>
+    </record>
+</odoo>

estate/views/estate_menus.xml

@@ -0,0 +1,11 @@
+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_ads_property_menu" name="Advertisements">
+            <menuitem id="estate_menu_action" action="estate_property_action" name="Properties"/>
+        </menuitem>
+        <menuitem id="estate_settings_property_menu" name="Settings">
+            <menuitem id="estate_type_menu_action" action="estate_property_type_action" name="Property Types"/>
+            <menuitem id="estate_tag_menu_action" action="estate_property_tag_action" name="Property Tags"/>
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

@@ -0,0 +1,43 @@
+<odoo>
+    <record id="estate_property_offer_action" model="ir.actions.act_window">
+        <field name="name">Offers</field>
+        <field name="res_model">estate.property.offer</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <record id="estate_property_offer_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 editable="top" decoration-success="status == 'accepted'" decoration-danger="status == 'refused'">
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="property_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
+                <button name="action_accepted" title="" type="object" icon="fa-check" invisible="status == 'accepted' or status == 'refused'"/>
+                <button name="action_refused" title="" type="object" icon="fa-close" invisible="status == 'accepted' or status == 'refused'"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_offer_form" model="ir.ui.view">
+        <field name="name">estate.property.offer.form</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <group>
+                        <field name="price"/>
+                        <field name="partner_id"/>
+                        <field name="validity"/>
+                        <field name="date_deadline"/>
+                        <button name="action_accepted" string="Accepted" type="object" icon="fa-check"/>
+                        <button name="action_refused" string="Refused" type="object" icon="fa-close"/>
+                        <field name="status"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_tag_views.xml

@@ -0,0 +1,18 @@
+<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_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="top">
+                <field name="name"/>
+                <field name="color"/>
+            </list>
+        </field>
+    </record>
+</odoo>