[ADD] estate: added real estate module

awesome_gallery/models/ir_action.py

@@ -7,4 +7,4 @@ class ActWindowView(models.Model):
 
     view_mode = fields.Selection(selection_add=[
         ('gallery', "Awesome Gallery")
-    ],  ondelete={'gallery': 'cascade'})
+    ], ondelete={'gallery': 'cascade'})

estate/__init__.py

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

estate/__manifest__.py

@@ -0,0 +1,11 @@
+{
+    'name': "Real Estate",
+    'summary': "This is real estate module",
+    'category': "Tutorials",
+    'description': "This is real estate module",
+    'author': "Dhruvrajsinh Zala (zadh)",
+    'installable': True,
+    'application': True,
+    'data': ['security/ir.model.access.csv', 'views/estate_property_views.xml', 'views/estate_property_offers.xml', 'views/estate_property_type_views.xml', 'views/estate_property_tags.xml', 'views/res_users_views.xml', 'views/estate_menus.xml'],
+    'license': 'AGPL-3'
+}

estate/models/__init__.py

@@ -0,0 +1,5 @@
+from . import estate_property
+from . import esatate_property_type
+from . import estate_property_tags
+from . import estate_property_offer
+from . import inherited_res_users

estate/models/esatate_property_type.py

@@ -0,0 +1,30 @@
+from odoo import models, fields, api
+
+
+class EstatePropertyTyeps(models.Model):
+    _name = "estate.property.types"
+    _description = "Types of Estate Property"
+    _order = "sequence, name"
+
+    _sql_constraints = [
+        ("_unique_type_name", "UNIQUE(name)", "Property type name must be unique.")
+    ]
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many(
+        "estate.property", "property_type_id", string="Properties"
+    )
+    sequence = fields.Integer(default=1)
+
+    offer_ids = fields.One2many(
+        "estate.property.offer", "property_type_id", string="Offers"
+    )
+
+    offer_count = fields.Integer(
+        string="Offer Count", compute="_compute_offer_count", store=True
+    )
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for record in self:
+            record.offer_count = len(record.offer_ids)

estate/models/estate_property.py

@@ -0,0 +1,131 @@
+from dateutil.relativedelta import relativedelta
+from odoo import models, fields, api, _
+from odoo.tools.float_utils import float_compare, float_is_zero
+from odoo.exceptions import UserError, ValidationError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+    _order = "id desc"
+
+    _sql_constraints = [
+        (
+            "_check_expected_price",
+            "CHECK(expected_price > 0)",
+            "The expected price must be positive.",
+        ),
+        (
+            "_check_selling_price",
+            "CHECK(selling_price >= 0)",
+            "The selling price must be positive.",
+        ),
+    ]
+
+    name = fields.Char(required=True, string="Title")
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        default=lambda self: fields.Date.today() + relativedelta(months=3),
+        copy=False,
+        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)")
+    total_area = fields.Float(compute="_compute_total_area", store=True)
+    facades = fields.Integer()
+    garage = fields.Boolean()
+    garden = fields.Boolean()
+    garden_area = fields.Integer(string="Garden Area (sqm)")
+    active = fields.Boolean(default=True)
+    garden_orientation = fields.Selection(
+        [("north", "North"), ("south", "South"), ("east", "East"), ("west", "West")],
+        string="Garden Orientation",
+    )
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        required=True,
+        copy=False,
+        default="new",
+    )
+    property_type_id = fields.Many2one("estate.property.types", 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.tags", string="Tags")
+
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+
+    best_price = fields.Float(compute="_get_best_offer_price", store=True)
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_except_state_new_or_cancelled(self):
+        for record in self:
+            if record.state not in ["new", "cancelled"]:
+                raise UserError(
+                    _("You can only delete properties in 'New' or 'Cancelled' state.")
+                )
+
+    @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.price")
+    def _get_best_offer_price(self):
+        for record in self:
+            prices = record.offer_ids.mapped("price")
+            record.best_price = max(prices) if prices else 0.0
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        for record in self:
+            if record.garden:
+                record.garden_area = 10
+                record.garden_orientation = "north"
+            else:
+                record.garden_area = 0
+                record.garden_orientation = ""
+
+    def action_set_state_sold(self):
+        for record in self:
+            if record.state == "cancelled":
+                raise UserError(_("Cancelled property cannot be sold."))
+            else:
+                record.state = "sold"
+        return True
+
+    def action_set_state_cancel(self):
+        for record in self:
+            if record.state == "sold":
+                raise UserError(_("Sold property cannot be cancelled."))
+            else:
+                record.state = "cancelled"
+        return True
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for record in self:
+            if not float_is_zero(record.selling_price, precision_digits=2):
+                if (
+                    float_compare(
+                        record.selling_price,
+                        record.expected_price * 0.9,
+                        precision_digits=2,
+                    )
+                    < 0
+                ):
+                    raise ValidationError(
+                        _(
+                            "The selling price cannot be lower than 90% of the expected price"
+                        )
+                    )

estate/models/estate_property_offer.py

@@ -0,0 +1,93 @@
+from odoo import fields, models, api, _
+from odoo.exceptions import UserError
+from datetime import timedelta, datetime
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offers of Estate Property"
+    _order = "price desc"
+    _sql_constraints = [
+        ("_check_offer_price", "CHECK(price > 0)", "The Offer price must be positive.")
+    ]
+
+    price = fields.Float()
+    status = fields.Selection(
+        [("accepted", "Accepted"), ("refused", "Refused")], copy=False
+    )
+    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.types",
+        related="property_id.property_type_id",
+        string="Property Type",
+        required=True,
+    )
+    validity = fields.Integer(default=7)
+    date_deadline = fields.Date(
+        compute="_compute_deadline", inverse="_inverse_deadline", store=True
+    )
+
+    @api.model_create_multi
+    def create(self, vals):
+        for val in vals:
+            property_id = val["property_id"]
+            offer_price = val["price"]
+            is_state_new = (
+                self.env["estate.property"].browse(property_id).state == "new"
+            )
+
+            result = self.read_group(
+                domain=[("property_id", "=", property_id)],
+                fields=["price:max"],
+                groupby=[],
+            )
+
+            max_price = result[0]["price"] if result else 0
+
+            if max_price >= offer_price:
+                raise UserError(
+                    _(
+                        "You cannot create an offer with a lower or equal amount than an existing offer for this property."
+                    )
+                )
+
+            if is_state_new:
+                self.env["estate.property"].browse(property_id).state = "offer_received"
+
+        return super().create(vals)
+
+    @api.depends("validity")
+    def _compute_deadline(self):
+        for record in self:
+            create_date = record.create_date or datetime.now()
+            record.date_deadline = create_date + timedelta(days=record.validity)
+
+    def _inverse_deadline(self):
+        for record in self:
+            create_date = record.create_date or datetime.now()
+            if record.date_deadline:
+                delta = record.date_deadline - create_date.date()
+                record.validity = delta.days
+
+    def action_accept_offer(self):
+        for record in self:
+            existing = self.search(
+                [
+                    ("property_id", "=", record.property_id.id),
+                    ("status", "=", "accepted"),
+                ]
+            )
+            if existing:
+                raise UserError(_("Another offer has been already accepted."))
+            record.status = "accepted"
+            record.property_id.state = "offer_accepted"
+            record.property_id.selling_price = record.price
+            record.property_id.buyer_id = record.partner_id.id
+
+    def action_refuse_offer(self):
+        for record in self:
+            if record.status == "accepted":
+                raise UserError(_("Accepted Offer cannot be Refused"))
+            else:
+                record.status = "refused"

estate/models/estate_property_tags.py

@@ -0,0 +1,14 @@
+from odoo import fields, models
+
+
+class EstatePropertyTags(models.Model):
+    _name = "estate.property.tags"
+    _description = "Estate Property Tags"
+    _order = "name"
+
+    _sql_constraints = [
+        ("_unique_tag_name", "UNIQUE(name)", "Tag name must be unique.")
+    ]
+
+    name = fields.Char(required=True)
+    color = fields.Integer(default=3)

estate/models/inherited_res_users.py

@@ -0,0 +1,12 @@
+from odoo import models, fields
+
+
+class InheritedResUsers(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        "estate.property",
+        "salesperson_id",
+        string="Available Properties",
+        domain=[("state", "in", ["new", "offer_received"])],
+    )

estate/security/ir.model.access.csv

@@ -0,0 +1,5 @@
+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_types,access_estate_property_types,estate.model_estate_property_types,base.group_user,1,1,1,1
+estate.access_estate_property_tags,access_estate_property_tags,estate.model_estate_property_tags,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_menus.xml

@@ -0,0 +1,13 @@
+<odoo>
+    <menuitem id="menu_estate_root" name="Real Estate">
+
+        <menuitem id="menu_estate_properties" name="Advertisements">
+            <menuitem id="estate_property_menu_action" name="Properties" action="estate_property_action"/>
+        </menuitem>
+
+        <menuitem id="menu_estate_properties_settings" name="Settings">
+            <menuitem id="estate_property_types" name="Property Types"  action="estate_property_type_action"/>
+            <menuitem id="estate_property_tags" name="Property Tags"  action="estate_property_tags_action"/>
+        </menuitem> 
+    </menuitem>
+</odoo>

estate/views/estate_property_offers.xml

@@ -0,0 +1,27 @@
+<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="view_mode">list,form</field>
+        <field name="domain">[('property_type_id', '=', active_id)]</field>
+    </record>
+
+
+    <record id="estate_property_offers_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="Property Tags">
+             <field name="price"/>
+                                    <field name="partner_id"/>
+                                    <field name="validity"/>
+                                    <field name="date_deadline"/>
+                                    <button name="action_accept_offer" type="object" title="Accept" icon="fa-check" invisible="status in (
+                                    'accepted','refused')"/>
+                                    <button name="action_refuse_offer" type="object" title="Refuse" icon="fa-times" invisible="status in (
+                                    'accepted','refused')"/>
+        </list>
+    </field>
+    </record>
+
+</odoo>

estate/views/estate_property_tags.xml

@@ -0,0 +1,35 @@
+<odoo>
+    <record id="estate_property_tags_action" model="ir.actions.act_window">
+        <field name="name">Property Tags</field>
+        <field name="res_model">estate.property.tags</field>
+        <field name="view_mode">list,form</field>
+    </record>
+
+
+
+
+    <record id="view_estate_property_tags_list" model="ir.ui.view">
+        <field name="name">estate.property.tags.list</field>
+        <field name="model">estate.property.tags</field>
+        <field name="arch" type="xml">
+            <list string="Property Tags">
+                <field name="name"/>
+            </list  >
+        </field>
+    </record>
+
+
+    <record id="estate_properties_tags_form" model="ir.ui.view">
+        <field name="name">estate.property.tags.form</field>
+        <field name="model">estate.property.tags</field>
+        <field name="type">form</field>
+        <field name="arch" type="xml">
+            <form string="Property Tags">
+                <group>
+                    <field name="name"/>
+                </group>
+            </form>
+    </field>
+
+    </record>
+</odoo>