[ADD] Estate: Add Estate Module

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': "Real estate",
+    'version': "1.0.0",
+    'depends': ["base", "web", "mail"],
+    'author': "Mehul Kotak",
+    'category': "Tutorials",
+    'description': "This Real Estate app in which the ad for any propertiues can add and also buyer can see and give thier price for that property",
+    'application': True,
+    'installable': True,
+    'license': "LGPL-3",
+    'data': [
+        "security/ir.model.access.csv",
+        "views/estate_property_views.xml",
+         "views/estate_proeprty_offer_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/res_users_views.xml",
+        "views/estate_property_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
+from . import res_users

estate/models/estate_property.py

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+from odoo import models, fields, api
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Storing Properties of Real Estate"
+    _order = "id desc"
+
+    name = fields.Char(required=True)
+    description = fields.Text()
+    postcode = fields.Char()
+    date_availability = fields.Date(
+        string="",
+        default=fields.Date.add(fields.Date.today(), months=3),
+        copy=False,
+    )
+    expected_price = fields.Float(required=True)
+    selling_price = fields.Float(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(
+        [("north", "North"), ("south", "South"), ("east", "East"), ("west", "West")]
+    )
+
+    property_type_id = fields.Many2one("estate.property.type")
+    property_tag_ids = fields.Many2many("estate.property.tag")
+    salesman_id = fields.Many2one("res.users", default=lambda self: self.env.user)
+    buyer_id = fields.Many2one("res.partner", copy=False)
+    offer_property_ids = fields.One2many("estate.property.offer", "property_id")
+    total_area = fields.Float("Total Area(sqm)", compute="_compute_total_area")
+    best_price = fields.Float("Best Price", compute="_compute_best_price")
+
+    active = fields.Boolean(default=True)
+    state = fields.Selection(
+        [
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        default="new",
+        copy=False,
+    )
+
+    _expected_price_positive_check = models.Constraint(
+        "CHECK(expected_price>0)", "The expected price must be strictly positive"
+    )
+    _selling_price_positive_check = models.Constraint(
+        "CHECK(selling_price>=0)", "The selling price must be positive"
+    )
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total_area(self):
+        self.total_area = self.garden_area + self.living_area
+
+    @api.depends("offer_property_ids.price")
+    def _compute_best_price(self):
+        self.best_price = max(self.offer_property_ids.mapped("price"), default=0.0)
+
+    @api.onchange("garden")
+    def _onchange_gaden(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        if (
+            self.selling_price
+            and (float_compare(self.selling_price, (0.9 * self.expected_price), 2))
+            == -1
+        ):
+            raise ValidationError(
+                "The selling price is must greater than 90% of expected price"
+            )
+
+    def action_set_sold(self):
+        if self.state == "cancelled":
+            raise UserError(message="The cancelled property cant be sold")
+        self.state = "sold"
+        return True
+
+    def action_set_cancelled(self):
+        if self.state == "sold":
+            raise UserError(message="Sold property can not be cancelled")
+        self.state = "cancelled"
+        return True
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_except_new_cancel(self):
+      invalid_records = self.filtered(lambda r: r.state not in ['new', 'cancelled'])
+      if invalid_records:
+        raise UserError("You can not delete a property that is not in 'New' or 'Cancelled' state.")

estate/models/estate_property_offer.py

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+from odoo import models, fields, api
+from odoo.exceptions import UserError
+
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "this is defind the offer of properties"
+    _order = "price desc"
+
+    price = fields.Float()
+    status = fields.Selection(
+        [("accepted", "Accepted"), ("refused", "Refused")], copy=False
+    )
+    partner_id = fields.Many2one("res.partner", required=True)
+    property_id = fields.Many2one("estate.property", required=True)
+    property_type_id = fields.Many2one(
+        related="property_id.property_type_id", store=True
+    )
+
+    validity = fields.Integer("Offer Validity", default=7)
+    date_deadline = fields.Date(
+        "Deadline", compute="_compute_deadline", inverse="_compute_validity"
+    )
+
+    _check_offer_price_positive = models.Constraint(
+        "CHECK(price>0)", "The offer price must be strictly positive"
+    )
+
+    @api.depends("validity")
+    def _compute_deadline(self):
+        for record in self:
+            record.date_deadline = fields.Date.add(
+                record.create_date or fields.Date.today(), days=record.validity
+            )
+
+    def _compute_validity(self):
+        for record in self:
+            record.validity = (record.date_deadline - record.create_date.date()).days
+
+    def action_accept_offer(self):
+        for record in self:
+            if record.property_id.state == "offer_accepted":
+                raise UserError(message="one offer is already accpted")
+            else:
+                record.status = "accepted"
+                record.property_id.selling_price = record.price
+                record.property_id.buyer_id = record.partner_id
+                record.property_id.state = "offer_accepted"
+                for offer in record.property_id.offer_property_ids:
+                    if record.id != offer.id:
+                        offer.status = "refused"
+        return True
+
+    def action_refused_offer(self):
+        for record in self:
+            record.status = "refused"
+        return True
+
+    @api.model
+    def create(self,vals):
+      for val in vals:
+         x=self.env['estate.property'].browse(val['property_id'])
+         if x.offer_property_ids.filtered(lambda r : r.price > val['price']):
+            raise UserError("This offer's price is less than existing offer's price")
+         x.state='offer_received'
+
+      return  super().create(vals)
+
+
+
+# vals[0].get('xyz')
+# vals[0]['xyz']

estate/models/estate_property_tag.py

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+from odoo import models, fields
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "this is defind the tag of properties"
+    _order = "name"
+
+    name = fields.Char("Property tags", required=True)
+    color = fields.Integer()
+
+    _check_unique_tag = models.Constraint("UNIQUE(name)", "The Tag 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"
+    _description = "this is defind the type of properties"
+    _order = "name"
+
+    name = fields.Char(required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    sequence = fields.Integer(default=1)
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    offer_count=fields.Float(compute="_compute_offer_count")
+
+    _check_unique_type = models.Constraint("UNIQUE(name)", "The Type must be Unique")
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        self.offer_count= len(self.offer_ids)

estate/models/res_users.py

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+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many("estate.property", "salesman_id")

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
+access_estate_property_type,access_estate_property_type,model_estate_property_type,base.group_user,1,1,1,1
+access_estate_property_tag,access_estate_property_tag,model_estate_property_tag,base.group_user,1,1,1,1
+access_estate_property_offer,access_estate_property_offer,model_estate_property_offer,base.group_user,1,1,1,1
+access_res_users,access_estate_res_users,model_res_users,base.group_user,1,1,1,1

estate/views/estate_proeprty_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">Properties offer</field>
+        <field name="res_model">estate.property.offer</field>
+        <field name="view_mode">list,form,kanban</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">estate.property.offer.list.view</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="property_id"/>
+                <field name="status"/>
+            </list>
+        </field>
+    </record>
+</odoo>

estate/views/estate_property_menus.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <menuitem id="estate_property_root" name="Estate">
+        <menuitem id="estate_first_level_menu_first" name="Properties">
+            <menuitem id="estate_properties_menu" action="estate_property_action"/>
+        </menuitem>
+        <menuitem id="estate_first_level_menu_second" name="Setting">
+            <menuitem id="esate_setting_menu_first" action="estate_property_type_action"/>
+            <menuitem id="esate_setting_menu_second" action="estate_property_tag_action"/>
+        </menuitem>
+    </menuitem>
+
+</odoo>

estate/views/estate_property_type_views.xml

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+<?xml version="1.0"?>
+<odoo>
+
+    <record id="estate_property_type_action" model="ir.actions.act_window">
+        <field name="name">Properties type</field>
+        <field name="res_model">estate.property.type</field>
+        <field name="view_mode">list,form,kanban</field>
+    </record>
+
+
+    <record id="estate_property_type_form_view" model="ir.ui.view">
+
+        <field name="name">estate.property.type.form</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+
+            <form>
+                <header>
+                    <button class="oe_stat_button" type="action" icon="fa-money" name="%(estate_property_offer_action)d">
+                        <field name="offer_count"/>
+               offers
+                    </button>
+                </header>
+                <sheet>
+                    <group>
+                        <h1>
+                            <field name="name" nolabel="1"/>
+                        </h1>
+                    </group>
+                    <notebook>
+                        <page string="properties">
+                            <field name="property_ids">
+                                <list>
+                                    <field name="name" string="Title"/>
+                                    <field name="expected_price"/>
+                                    <field name="state"/>
+                                </list>
+                            </field>
+                        </page>
+                    </notebook>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <record id="estate_property_type_list_view" model="ir.ui.view">
+        <field name="name">estate.property.type.list.view</field>
+        <field name="model">estate.property.type</field>
+        <field name="arch" type="xml">
+            <list>
+                <field name="sequence" widget="handle" />
+                <field name='name'/>
+            </list>
+        </field>
+    </record>
+
+</odoo>