[ADD] estate: Chapters 1-11

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': "estate",
+   'depends':['base'],
+'application': True,
+'data':['security/ir.model.access.csv',
+'views/estate_property_views.xml',
+'views/estate_property_tag_views.xml',
+'views/estate_property_offer_views.xml',
+'views/estate_property_type_views.xml',
+'views/estate_property_menus.xml',
+'views/inherited_model_view.xml'
+
+
+]
+
+
+}

estate/models/__init__.py

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

estate/models/estate_property.py

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+from odoo import models, fields, api
+from odoo.exceptions import UserError,  ValidationError
+from odoo.tools import float_compare, float_is_zero
+
+class TestModel(models.Model):
+    _name = "estate_property"
+    _description = "Basic fields in estate property"
+    _order = "id desc"
+
+
+
+    name = fields.Char(required = True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(copy = False, default = fields.Date.add(fields.Date.today(), 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='Garden Orientation',
+        selection=[('North', 'North'),('South', 'South'), ('East', 'East'), ('West', 'West')])
+    active = fields.Boolean('Active', default = True)
+    # New, Offer Received, Offer Accepted, Sold and Cancelled
+    state = fields.Selection(
+        string='State',
+        selection=[('New', 'New'),('Offer Received', 'Offer Received'), ('Offer Accepted', 'Offer Accepted'), ('Sold', 'Sold'),('Cancelled', 'Cancelled')],
+        required = True,
+        default = "New")
+    property_type_id = fields.Many2one("estate_property_type", string = "Property Type")
+    salesperson = fields.Many2one('res.users', string='Salesman', default=lambda self: self.env.user)
+    buyer =  fields.Many2one('res.partner', string='Buyer', copy = False)
+    tag_ids = fields.Many2many("estate_property_tag", string="Property Tags")
+    offer_ids = fields.One2many(comodel_name="estate_property_offer", inverse_name = "property_id")
+    total_area = fields.Integer(compute = "_compute_total_area")
+    best_price = fields.Float(compute  = "_compute_best_offer")
+
+
+    @api.depends('living_area', 'garden_area')
+    def _compute_total_area(self):
+        for property in self:
+            property.total_area = property.living_area + property.garden_area
+
+
+
+    @api.depends('offer_ids')
+    def _compute_best_offer(self):
+        for property in self:
+            if len(property.offer_ids) > 0:
+                property.best_price = max(property.offer_ids.mapped('price'))
+            else:
+                property.best_price = 0.0
+
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_orientation = "North"
+            self.garden_area = 10
+        else:
+            self.garden_area = 0
+            self.garden_orientation = ''
+
+
+
+    def sell(self):
+        for record in self:
+            if record.state == 'Cancelled':
+                raise UserError("Cancelled properties cannot be sold!")
+
+            else:
+                record.state = "Sold"
+        return True
+
+
+
+    def cancel(self):
+        for record in self:
+            if record.state == 'Sold':
+                raise UserError("Sold properties cannot be cancelled!")
+
+            else:
+                record.state = "Cancelled"
+        return True
+
+    _sql_constraints = [
+        ('strictly_positive_expected_price', 
+        'CHECK(expected_price > 0)',
+         'The expected price should be strictly positive'),
+
+         ('positive_seling_price', 
+        'CHECK(selling_price >= 0)',
+         'The selling price should be positive'),
+
+    ]
+
+
+    @api.constrains('expected_price', 'selling_price')
+    def filter_bad_offers(self):
+        for property in self:
+            if not float_is_zero(property.selling_price, precision_digits = 6) and float_compare(property.selling_price, 0.9*property.expected_price, precision_digits=6) < 0:
+                raise ValidationError('The selling price is below the 90% threshold of the expected price')
+        return True
+
+
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_offer_not_new_not_cancelled(self):
+        if any(property.state not in ["New", "Cancelled"] for property in self):
+            raise UserError("Can't delete an offer which is not cancelled or new!")
+
+
+
+
+

estate/models/estate_property_offer.py

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+from odoo import models, fields, api
+from datetime import datetime
+from odoo.exceptions import UserError
+from odoo.tools import float_compare
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate_property_offer"
+    _order = "price desc"
+
+
+
+    name = fields.Char(required = True, default = "Offer")
+    price = fields.Float()
+    state = fields.Selection(
+        string='State',
+        selection=[('Accepted', 'Accepted'),('Refused','Refused')],
+        copy = False)
+    partner_id = fields.Many2one('res.partner', string='Partner',required = True)
+    property_id = fields.Many2one('estate_property',required = True, ondelete='cascade')
+    date_deadline = fields.Date(compute = '_compute_deadline', inverse = '_compute_validity')
+    validity = fields.Integer(default = 7)
+
+    property_state = fields.Selection(
+        related='property_id.state',
+        readonly=True,
+    )
+
+    property_type_id = fields.Many2one(
+        related='property_id.property_type_id',
+        stored = True
+    )
+
+
+
+    @api.depends('validity')
+    def _compute_deadline(self):
+        for property in self:
+            if not property.create_date:
+                property.date_deadline = fields.Date.add(fields.Date.today(), days = property.validity)
+
+            else:
+                property.date_deadline = fields.Date.add(property.create_date, days = property.validity)
+
+
+
+
+    def _compute_validity(self):
+        for property in self:
+            if not property.create_date:
+
+                property.validity = (property.date_deadline - fields.Date.today()).days
+
+
+            else:
+                property.validity = (datetime.combine(property.date_deadline, datetime.min.time()) - property.create_date).days
+
+
+
+
+    def action_confirm(self):
+        for record in self:
+            if record.property_id.state not in ["Cancelled", "Sold", "Offer Accepted"]:
+                record.state = 'Accepted'
+                record.property_id.buyer = record.partner_id
+                record.property_id.selling_price = record.price
+                record.property_id.state = "Offer Accepted"
+            elif record.property_id.state ==  "Offer Accepted":
+                if record.state != "Accepted":
+                    raise UserError("Only one offer can be accepted!")
+
+            else:
+                raise UserError("Property not available!")
+
+        return True
+
+
+
+    def action_reject(self):
+        for record in self:
+            if record.property_id.state not in ["Cancelled", "Sold"]:
+                if record.state == 'Accepted':
+                    record.property_id.state = "Offer Received"
+                    record.property_id.buyer = ''
+                    record.property_id.selling_price = 0.0
+                record.state = 'Refused'
+
+            else:
+                raise UserError("Property not available!")
+
+
+
+        return True
+
+
+    _sql_constraints = [
+        ('strictly_positive_offer_price', 
+        'CHECK(price > 0)',
+         'The offer price should be strictly positive')
+
+    ]
+
+
+    @api.model
+    def create(self, vals):
+
+        property_object = self.env["estate_property"].browse(vals['property_id'])
+        if float_compare(property_object.best_price, vals['price'], precision_digits=6) > 0:
+            raise UserError(f"Offer must be higher than {property_object.best_price}!")
+
+        offer = super().create(vals)
+        offer.property_id.state = 'Offer Received'
+        return offer

estate/models/estate_property_tag.py

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+from odoo import models, fields
+
+class EstatePropertyTag(models.Model):
+    _name = "estate_property_tag"
+    _order = "name"
+    name = fields.Char(required = True)
+    color = fields.Integer()
+
+
+
+    _sql_constraints = [
+        ('is_tag_unique', 'UNIQUE(name)', 'Tag name must be unique!')
+    ]

estate/models/estate_property_type.py

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+from odoo import models, fields, api
+
+class EstatePropertyType(models.Model):
+    _name = "estate_property_type"
+    _order = "sequence,name"
+
+    name = fields.Char(required = True)
+    property_ids = fields.One2many(comodel_name="estate_property", inverse_name = "property_type_id")
+    sequence = fields.Integer('Sequence', default=1)
+    offer_ids = fields.One2many(comodel_name="estate_property_offer", inverse_name = "property_type_id")
+    offer_count = fields.Integer(compute = "_compute_offer_count")
+
+
+
+    _sql_constraints = [
+        ('is_property_type_unique', 'UNIQUE(name)', 'Property type name must be unique!')
+    ]
+
+
+    @api.depends('offer_ids')
+    def _compute_offer_count(self):
+        for property_type in self:
+            property_type.offer_count = len(property_type.offer_ids)
+

estate/models/inherited_model.py

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+from odoo import fields, models
+
+class InheritedModel(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(comodel_name="estate_property", inverse_name = "salesperson", 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
+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/estate_property_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+<menuitem id="test_menu_root" name="Real Estate">
+    <menuitem id="test_first_level_menu" name="Advertisements">
+        <menuitem id="test_model_menu_action" action="test_model_action"/>
+    </menuitem>
+    <menuitem id="estate_property_type_settings_menu" name="Settings">
+         <menuitem id="property_type_action" action="estate_property_type_properties"/>
+          <menuitem id="estate_property_tag_menu_tags" 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">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>
+
+
+
+
+
+
+
+
+
+   <record id="estate_property_offer_list_view" model="ir.ui.view">
+
+        <field name="name">List View</field>
+        <field name="model">estate_property_offer</field> 
+        <field name="arch" type="xml">
+            <list string="Offer List" editable="bottom" decoration-success = "state == 'Accepted'" decoration-danger = "(state == 'Refused') or (state != 'Accepted' and property_state in ('Offer Accepted', 'Cancelled', 'Sold'))">
+
+             <field name="price" string  = "Price"/>
+             <field name="partner_id" string  = "Partner"/>
+             <field name="validity" string  = "Validity (days)"/>
+              <field name="date_deadline" string  = "Deadline"/>
+
+               <button name="action_confirm" string="Accept"  type="object" icon="fa-check" invisible="(state in ('Accepted','Refused')) or property_state in ('Cancelled', 'Offer Accepted', 'Sold')"/>
+               <button name="action_reject" string="Reject"  type="object" icon="fa-times" invisible="(state in ('Accepted','Refused')) or property_state in ('Cancelled', 'Offer Accepted', 'Sold')"/>
+
+
+            </list>
+        </field>
+    </record>
+
+
+
+
+
+
+    <record id="estate_property_offer_form_view" model="ir.ui.view">
+        <field name="name">Form View</field>
+        <field name="model">estate_property_offer</field>
+        <field name="arch" type="xml">
+            <form string="Property Form">
+                <sheet>
+
+                 <div class="estate_property_offer_oe_title">
+                    <h1> <field name="name" nolabel="1"/> </h1>
+                </div>
+
+                    <group>
+                         <field name="price" string  = "Price"/>
+                        <field name="partner_id" string  = "Partner"/>
+                          <field name="validity" string  = "Validity (days)"/>
+                        <field name="date_deadline" string  = "Deadline"/>                   
+                        <field name="state" string  = "State"/>
+
+                    </group>
+
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+
+</odoo>
+
+