[ADD] estate{,_account}: real estate business module

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Real Estate',
+    'depends': ['base'],
+    'application': True,
+    'data': [
+        'security/ir.model.access.csv',
+        'views/estate_menus.xml'
+    ]
+}

estate/models/__init__.py

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

estate/models/estate_property.py

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+from odoo import models, fields
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate Property"
+    _order = "id desc"
+
+    name = fields.Char(required=True, string="Title")
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        string="Available From", 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(string="Living Area (sqm)")
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer()
+    garden_orientation = fields.Selection(
+        selection=[
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West')
+        ],
+        string='Type',
+    )
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        selection=[
+            ('new', 'New'),
+            ('offer_received', 'Offer Received'),
+            ('offer_accepted', 'Offer Accepted'),
+            ('sold', 'Sold'),
+            ('canceled', 'Canceled')
+        ],
+        required=True, default='new', copy=False,
+    )
+    property_type_id = fields.Many2one(
+        'estate.property.type',
+        string='Property Type'
+    )
+    buyer_id = fields.Many2one(
+        'res.partner',
+        string='Buyer',
+        copy=False,
+    )
+    salesperson_id = fields.Many2one(
+        'res.users',
+        string='Salesperson',
+        default=lambda self: self.env.user,
+    )
+    tag_ids = fields.Many2many(
+        'estate.property.tag',
+        string='Property Tags',
+    )
+    offer_ids = fields.One2many(
+        'estate.property.offer',
+        'property_id',
+        string='Offers',
+    )
+    total_area = fields.Integer(
+        string="Total Area (sqm)",
+        compute='_compute_total_area',
+    )
+    best_price = fields.Float(
+        string="Best Offer",
+        compute='_compute_best_price',
+    )

estate/models/estate_property_offer.py

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+from odoo import models, fields
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        selection=[
+            ('accepted', 'Accepted'),
+            ('refused', 'Refused')
+        ],
+        copy=False,
+    )
+    partner_id = fields.Many2one('res.partner', required=True)
+    property_id = fields.Many2one('estate.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",
+        string="Property Type",
+        store=True,
+    )

estate/models/estate_property_tag.py

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+from odoo import models, fields
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    color = fields.Integer()

estate/models/estate_property_type.py

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+from odoo import models, fields
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Estate Property Type"
+    _order = "sequence, name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many('estate.property', 'property_type_id')
+    sequence = fields.Integer('Sequence', default=1)
+    offer_ids = fields.One2many('estate.property.offer', 'property_type_id')
+    offer_count = fields.Integer('Offers', compute='_compute_offer_count')

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,model_estate_property,base.group_user,1,1,1,1
+estate.access.estate.property.type,access.estate.property.type,model_estate_property_type,base.group_user,1,1,1,1
+estate.access.estate.property.tag,access.estate.property.tag,model_estate_property_tag,base.group_user,1,1,1,1
+estate.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_root_menu" name="Real Estate">
+        <menuitem id="estate_first_level_menu" name="Advertisements">
+            <menuitem id="estate_property_action_menu" action="estate_property_action"/>
+        </menuitem>
+        <menuitem id="estate_settings_menu" name="Settings">
+            <menuitem id="estate_property_type_action_menu" action="estate_property_type_action"/>
+            <menuitem id="estate_property_tag_action_menu" action="estate_property_tag_action"/>
+        </menuitem>
+    </menuitem>
+</odoo>