18.0 training kums

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    "name": "Real Estate",
+    "category": "Tutorials/RealEstate",
+    "application": True,
+    "installable": True,
+    "data": [
+        "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_menus.xml",
+        "views/inherit_res_users_view.xml",
+        "security/ir.model.access.csv",
+    ],
+    "license": "AGPL-3",
+}

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 inherited_res_users

estate/models/estate_property.py

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+from odoo import fields, models, api
+from dateutil.relativedelta import relativedelta
+from datetime import date
+from odoo.exceptions import UserError
+from odoo.exceptions import ValidationError
+from odoo.tools.float_utils import float_compare
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Estate Model"
+
+    name = fields.Char()
+    description = fields.Text()
+    postcode = fields.Text()
+    date_availability = fields.Date(
+        copy=False, default=lambda self: date.today() + relativedelta(months=3)
+    )
+    expected_price = fields.Float()
+    selling_price = fields.Integer(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="Type",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+    )
+
+    active = fields.Boolean(default=True)
+
+    state = fields.Selection(
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received "),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        string="State",
+        default="new",
+        copy=False,
+    )
+
+    # property will have Many to one relation with property type since many properties can belong to one property type
+
+    property_type_id = fields.Many2one("estate.property.type", "Property Type")
+
+    user_id = fields.Many2one(
+        "res.users",
+        string="Salesperson",
+        copy=False,
+        default=lambda self: self.env.user,
+    )
+
+    partner_id = fields.Many2one(
+        "res.partner",
+        string="Buyer",
+        copy=False,
+    )
+
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+
+    offer_ids = fields.One2many("estate.property.offer", "property_id", string="Offers")
+
+    total_area = fields.Integer(compute="_compute_total_property_area")
+
+    best_price = fields.Integer(compute="_best_property_offer")
+
+    status = fields.Char(default="new")
+
+    _order = "id desc"
+
+    _sql_constraints = [
+        (
+            "check_expected_price",
+            "CHECK(expected_price > 0)",
+            "Expected price must be strictly positive",
+        ),
+        (
+            "check_selling_price",
+            "CHECK(selling_price >= 0)",
+            "Selling price should be positive",
+        ),
+    ]
+
+    @api.depends("garden_area", "living_area")
+    def _compute_total_property_area(self):
+        for area in self:
+            area.total_area = area.garden_area + area.living_area
+
+    @api.depends("offer_ids.price")
+    def _best_property_offer(self):
+        for record in self:
+            offers_list = record.mapped("offer_ids.price")
+            if offers_list:
+                record.best_price = max(offers_list)
+                return
+            record.best_price = 0
+
+    # on change of garden status , update gardern area and its orientation
+
+    @api.onchange("garden")
+    def _onchange_garden_status(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+            return
+        self.garden_area = 0
+        self.garden_orientation = ""
+
+    # acts when property is sold
+    # In case property is cancelled it cannot be sold
+    def action_sell_property(self):
+        # dictionary for the property status
+        property_sell_status_dict = {"new": True, "sold": True, "cancelled": False}
+
+        for record in self:
+            if property_sell_status_dict[record.status]:
+                record.status = "sold"
+                record.state = "sold"
+                return
+            raise UserError("Cancelled property cannot be sold.")
+
+    # action in case of cancel property button
+    #  If property is sold than Cannot be cancelled
+
+    def action_cancel_property_selling(self):
+        property_cancel_status_dict = {
+            "new": True,
+            "cancelled": True,
+            "sold": False,
+        }
+        for record in self:
+            if property_cancel_status_dict[record.status]:
+                record.status = "cancelled"
+                return
+            raise UserError("Sold  property cannot be cancelled.")
+
+    # constrains for the selling price
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for data in self:
+            # if call will come after selling price change than it will allow updated price to work
+            if data.selling_price <= 0:
+                return
+
+            price_float_ratio = data.selling_price / data.expected_price
+            ratio_diffrence = float_compare(price_float_ratio, 0.9, precision_digits=2)
+            if ratio_diffrence == -1:
+                data.selling_price = 0
+                raise ValidationError(
+                    "The selling price cannot be lower than 90% of the expected price"
+                )
+                return
+
+    # delete opration for the process
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_state_new_or_cancelled(self):
+        for data in self:
+            if not bool(data.state == "new" or data.state == "cancelled"):
+                raise UserError(
+                    "Can't delete property which is not in new or cancelled state!"
+                )

estate/models/estate_property_offer.py

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+# offers model that will offer us the offers
+
+
+from odoo import fields, models, api
+from datetime import datetime
+from dateutil.relativedelta import relativedelta
+from odoo.exceptions import UserError
+from odoo.tools.float_utils import float_compare
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offer model for the properties of real estate"
+    price = fields.Float()
+    status = fields.Selection(
+        selection=[("accepted", "Accepted"), ("refused", "Refused ")],
+        string="Status",
+        copy=False,
+    )
+
+    partner_id = fields.Many2one("res.partner", string="Partner")
+
+    property_id = fields.Many2one("estate.property", string="Property")
+
+    property_type_id = fields.Many2one(
+        "estate.property.type",
+        related="property_id.property_type_id",
+        store=True,
+        readonly=False,
+    )
+
+    validity = fields.Integer(default=7)
+
+    date_deadline = fields.Date(
+        compute="_compute_offer_deadline", inverse="_deadline_update"
+    )
+
+    # constrains of sql
+
+    _sql_constraints = [
+        ("check_price", "CHECK(price > 0)", "Offered price must be strictly positive")
+    ]
+
+    # order in which data is fetched
+
+    _order = "price desc"
+
+    # deadline will be computed based upon the validity date
+    @api.depends("validity")
+    def _compute_offer_deadline(self):
+        for offer in self:
+            if not offer.create_date:
+                offer.date_deadline = datetime.now() + relativedelta(
+                    days=(offer.validity or 0)
+                )
+                return
+
+        offer.date_deadline = offer.create_date + relativedelta(
+            days=(offer.validity or 0)
+        )
+
+    # deadline date can also be changed and once this is saved validity will be updated
+    def _deadline_update(self):
+        for offer in self:
+            offer.validity = (
+                offer.date_deadline - (offer.create_date or datetime.now()).date()
+            ).days
+
+    # action for the accepting the offer
+    def action_offer_confirm(self):
+        for record in self:
+            # since saling price is only updated when offer is accepted therefore it validates if offer
+            # is already accepted than warning
+
+            if record.property_id.selling_price > 0:
+                raise UserError("Offer price already accepted for the property")
+
+        record.status = "accepted"
+        record.property_id.selling_price = self.price
+        record.property_id.partner_id = record.partner_id
+        record.property_id.state = "offer_accepted"
+
+    # action for the refusal of the status
+    def action_offer_refuse(self):
+        for record in self:
+            if record.status == "accepted":
+                record.property_id.selling_price = 0
+                record.property_id.partner_id = ""
+            record.status = "refused"
+
+    # now in case of offer creation CRUD
+    # self will be a proxy object ,
+    # property_id feilds is available in vals
+    @api.model_create_multi
+    def create(self, vals):
+        # will check the offer value and does property has other offers which are max thw\an this one
+        for value in vals:
+            property_details = self.env["estate.property"].browse(
+                value.get("property_id")
+            )
+            for property_data in property_details:
+                offers_list = property_data.mapped("offer_ids.price")
+                max_offer = max(offers_list, default=0)
+                comparison_result = float_compare(
+                    value.get("price"), max_offer, precision_digits=2
+                )
+
+                if comparison_result == -1:
+                    raise UserError("Offer with a lower amount than an existing offer")
+
+                if property_data.state == "new":
+                    property_data.state = "offer_received"
+
+        return super().create(vals)

estate/models/estate_property_tag.py

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+# the tag model will be here
+
+
+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Tag model for the estate properties"
+    name = fields.Char(required=True)
+    color = fields.Integer(default=1)
+    _sql_constraints = [("check_uniquness", " UNIQUE(name)", "Tag name must be unique")]
+
+    # order on which data will be fetched
+    _order = "name desc"

estate/models/estate_property_type.py

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+from odoo import fields, models, api
+
+
+# Property type model for properties
+# prpoerties can be of type house, penthouse, etc.
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Type of properties of estate model"
+    name = fields.Char(required=True)
+
+    property_ids = fields.One2many("estate.property", "property_type_id")
+
+    offer_ids = fields.One2many(
+        "estate.property.offer", "property_type_id", "Offer For Property Type"
+    )
+
+    offer_count = fields.Integer(compute="_compute_offer_count")
+    sequence = fields.Integer("Sequence", default=1)
+
+    # sql constrains :::
+
+    _sql_constraints = [
+        ("check_uniquness", " UNIQUE(name)", "Type of property name must be unique")
+    ]
+
+    # order on which data will be fetched
+
+    _order = "sequence, name desc"
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for data in self:
+            data.offer_count = len(data.offer_ids)

estate/models/inherited_res_users.py

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+# This model inherits from res.users model
+
+from odoo import models, fields
+
+
+class InheritedResUsers(models.Model):
+    _inherit = "res.users"
+    property_ids = fields.One2many(
+        "estate.property",
+        "user_id",
+        "Estate Property",
+        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, ir.model.access,model_estate_property,base.group_user,1,1,1,1
+estate.access_estate_property_type,ir.model.access,model_estate_property_type,base.group_user,1,1,1,1
+
+estate.access_estate_property_tag,ir.model.access,model_estate_property_tag,base.group_user,1,1,1,1
+
+estate.access_estate_property_offer,ir.model.access,model_estate_property_offer,base.group_user,1,1,1,1