[ADD] estate: new module created

- New model 'property' created
- Security: give read, write, create and unlink permissions to the group base.group_user.
- Basic list, form views added

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Estate',
+    'version': '0.1',
+    'depends': ['base'],
+    'summary': 'Estate module',
+    'category': 'Tutorials/Estate',
+    'application': True,
+    'installable': True,
+    'license': 'AGPL-3',
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_property_views.xml',
+    ]
+}

estate/models/__init__.py

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+from . import property
+

estate/models/property.py

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+from dateutil.relativedelta import relativedelta
+from odoo import fields, models
+
+
+def _default_date_availability():
+    return fields.Date.today() + relativedelta(months=3)
+
+
+class EstateProperty(models.Model):
+    _name = 'estate.property'
+    _description = "Estate Property"
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(copy=False,
+                                    default=_default_date_availability,
+                                    string='Available from')
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(readonly=True, copy=False)
+    bedrooms = fields.Integer(default=2)
+    living_area = fields.Integer(string='Living area (sqm)')
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer(string='Garden area (sqm)')
+    garden_orientation = fields.Selection(
+        selection=[('north', 'North'), ('south', 'South'), ('east', 'East'), ('west', 'West')])
+    active: bool = fields.Boolean(default=True)
+    state = fields.Selection(copy=False, default='New', required=True,
+                             selection=[('New', 'New'), ('Offer Received', 'Offer Received'),
+                                        ('Offer Accepted', 'Offer Accepted'), ('Sold', 'Sold'),
+                                        ('Cancelled', 'Cancelled')])

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

estate/views/estate_property_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="estate_property_model_action" model="ir.actions.act_window">
+        <field name="name">Properties</field>
+        <field name="res_model">estate.property</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_first_level_menu" name="Advertisements">
+            <menuitem id="estate_model_menu_action" action="estate_property_model_action"/>
+        </menuitem>
+    </menuitem>
+
+    <record id="estate_property_view_list" model="ir.ui.view">
+        <field name="name">estate.property.list</field>
+        <field name="model">estate.property</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="name" string="Title"/>
+                <field name="postcode"/>
+                <field name="bedrooms"/>
+                <field name="living_area"/>
+                <field name="expected_price"/>
+                <field name="selling_price"/>
+                <field name="date_availability"/>
+            </list>
+        </field>
+    </record>
+
+    <record id="estate_property_view_form" model="ir.ui.view">
+        <field name="name">estate.property.form</field>
+        <field name="model">estate.property</field>
+
+        <field name="arch" type="xml">
+            <form string="Property">
+                <sheet>
+                    <div class="oe_title">
+                        <h1>
+                            <field name="name"/>
+                        </h1>
+                    </div>
+
+                    <group>
+                        <group>
+                            <field name="postcode"/>
+                            <field name="date_availability"/>
+                        </group>
+                        <group>
+                            <field name="expected_price"/>
+                            <field name="selling_price"/>
+                        </group>
+                    </group>
+
+                    <notebook>
+                        <page string="Description">
+                            <group>
+                                <field name="description"/>
+                                <field name="bedrooms"/>
+                                <field name="living_area"/>
+                                <field name="facades"/>
+                                <field name="garage"/>
+                                <field name="garden"/>
+                                <field name="garden_area"/>
+                                <field name="garden_orientation"/>
+                            </group>
+                        </page>
+                    </notebook>
+
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+</odoo>