Server framework 101

estate/__init__.py

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

estate/__manifest__.py

@@ -0,0 +1,17 @@
+{
+    "name": "Real Estate",
+    "depends": ["base"],
+    "installable": True,
+    "application": True,
+    "data": [
+        "security/ir.model.access.csv",
+        "views/estate_property_views.xml",
+        "views/estate_property_offer_views.xml",
+        "views/estate_property_type_views.xml",
+        "views/estate_property_tag_views.xml",
+        "views/estate_menus.xml",
+        "views/res_users_views.xml",
+    ],
+    "author": "Odoo S.A.",
+    "license": "LGPL-3",
+}

estate/models/__init__.py

@@ -0,0 +1,5 @@
+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

@@ -0,0 +1,149 @@
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property Model"
+    _order = "id desc"
+
+    name = fields.Char("Title", required=True, translate=True)
+    description = fields.Text(string="Description", required=True, translate=True)
+    postcode = fields.Char("Postcode", required=True)
+    expected_price = fields.Float("Expected Price", required=True)
+    selling_price = fields.Float("Selling Price", readonly=True, copy=False)
+    bedrooms = fields.Integer("Bedrooms", required=True, default=2)
+    living_area = fields.Integer("Living Area (sqm)", required=True)
+    facades = fields.Integer("Facades", required=True)
+    garage = fields.Boolean("Garage", required=True)
+    garden = fields.Boolean("Garden", required=True)
+    garden_area = fields.Integer("Garden Area")
+    active = fields.Boolean(string="Active", required=True, default=True)
+
+    date_availability = fields.Date(
+        string="Available From",
+        copy=False,
+        default=fields.Date.today() + relativedelta(months=3),
+    )
+
+    garden_orientation = fields.Selection(
+        string="Garden Orientation",
+        selection=[
+            ("north", "North"),
+            ("south", "South"),
+            ("east", "East"),
+            ("west", "West"),
+        ],
+        help="Mucho calor o poco calor",
+    )
+
+    state = fields.Selection(
+        string="State",
+        selection=[
+            ("new", "New"),
+            ("offer_received", "Offer Received"),
+            ("offer_accepted", "Offer Accepted"),
+            ("sold", "Sold"),
+            ("cancelled", "Cancelled"),
+        ],
+        copy=False,
+        default="new",
+    )
+
+    property_type_id = fields.Many2one("estate.property.type", string="Type")
+    buyer_id = fields.Many2one("res.partner", string="Buyer", copy=False)
+    salesperson_id = fields.Many2one(
+        "res.users",
+        string="Salesman",
+        default=lambda self: self.env.user,
+    )
+    property_tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    property_offer_ids = fields.One2many(
+        "estate.property.offer",
+        "property_id",
+        string="Offers",
+    )
+
+    total_area = fields.Float(compute="_compute_total_area", string="Total Area (sqm)")
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self):
+        for property in self:
+            property.total_area = property.living_area + property.garden_area
+
+    best_price = fields.Float(compute="_compute_best_price", string="Best Offer")
+
+    @api.depends("property_offer_ids.price")
+    def _compute_best_price(self):
+        for property in self:
+            if len(property.property_offer_ids) > 0:
+                property.best_price = max(
+                    offer.price for offer in property.property_offer_ids
+                )
+            else:
+                property.best_price = 0
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_area = 10
+            self.garden_orientation = "north"
+        else:
+            self.garden_area = 0
+            self.garden_orientation = False
+
+    def sell_property(self):
+        for property in self:
+            if property.state == "cancelled":
+                raise UserError(self.env._("Cancelled properties cannot be sold"))
+            if property.state in ["offer_accepted", "sold"]:
+                raise UserError(self.env._("Property is already sold"))
+            property.state = "sold"
+        return True
+
+    def cancel_property(self):
+        for property in self:
+            if property.state == "cancelled":
+                raise UserError(self.env._("Property is already cancelled"))
+            if property.state in ["offer_accepted", "sold"]:
+                raise UserError(self.env._("Sold properties cannot be cancelled"))
+            property.state = "cancelled"
+        return True
+
+    _check_expected_price = models.Constraint(
+        "CHECK(expected_price >= 0)",
+        "The expected price should be positive",
+    )
+    _check_bedrooms = models.Constraint(
+        "CHECK(bedrooms >= 0)",
+        "The amount of bedrooms should be at least 0",
+    )
+    _check_living_area = models.Constraint(
+        "CHECK(living_area >= 0)",
+        "The living area should be at least 0",
+    )
+    _check_facades = models.Constraint(
+        "CHECK(facades >= 0)",
+        "The amount of facades should be at least 0",
+    )
+    _check_garden_area = models.Constraint(
+        "CHECK(garden_area >= 0)",
+        "The garden area should be at least 0",
+    )
+
+    @api.constrains("selling_price")
+    def _check_selling_price(self):
+        for property in self:
+            if property.selling_price < 0.9 * property.expected_price:
+                raise ValidationError(
+                    self.env._(
+                        "Selling price cannot be lower than ninety percent of expected price",
+                    ),
+                )
+
+    @api.ondelete(at_uninstall=False)
+    def _prevent_unlink_if_new_or_cancelled(self):
+        if any(property.state not in ("new", "cancelled") for property in self):
+            raise UserError(self.env._("Can only delete New or Cancelled properties"))

estate/models/estate_property_offer.py

@@ -0,0 +1,78 @@
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Offer on a property"
+    _order = "price desc"
+
+    price = fields.Float(string="Price")
+    status = fields.Selection(
+        string="Status",
+        selection=[("accepted", "Accepted"), ("refused", "Refused")],
+        copy=False,
+    )
+    partner_id = fields.Many2one("res.partner", string="Buyer", required=True)
+    property_id = fields.Many2one("estate.property", string="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", store=True,
+    )
+
+    @api.depends("validity")
+    def _compute_date_deadline(self):
+        for property_offer in self:
+            property_offer.date_deadline = fields.Date.today() + relativedelta(
+                days=property_offer.validity,
+            )
+
+    def _inverse_date_deadline(self):
+        for property_offer in self:
+            delta = property_offer.date_deadline - fields.Date.today()
+            property_offer.validity = delta.days
+
+    def accept_offer(self):
+        for property_offer in self:
+            if property_offer.property_id.state in ["new", "offer_received"]:
+                property_offer.property_id.state = "offer_accepted"
+                property_offer.property_id.buyer_id = property_offer.partner_id
+                property_offer.property_id.selling_price = property_offer.price
+                property_offer.status = "accepted"
+            else:
+                raise UserError(
+                    self.env._(
+                        "Cannot accept offer for already sold or cancelled property",
+                    ),
+                )
+        return True
+
+    def refuse_offer(self):
+        for property_offer in self:
+            if property_offer.status == "accepted":
+                raise UserError(self.env._("Cannot refuse already accepted offer"))
+            if property_offer.property_id.state in ["new", "offer_received"]:
+                property_offer.status = "refused"
+        return True
+
+    @api.model
+    def create(self, vals_list):
+        property_ids = [vals["property_id"] for vals in vals_list]
+        properties = self.env["estate.property"].browse(property_ids)
+
+        for vals in vals_list:
+            property = properties.browse(vals["property_id"])
+            if property and (vals["price"] < property.best_price):
+                raise UserError(self.env._("Offer must be higher than best price"))
+
+        properties.write({"state": "offer_received"})
+        return super().create(vals_list)

estate/models/estate_property_tag.py

@@ -0,0 +1,15 @@
+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Real Estate Property Tag"
+    _order = "name"
+
+    _name_uniq = models.Constraint(
+        "unique(name)",
+        "A tag with the same name already exists.",
+    )
+
+    name = fields.Char("Title", required=True)
+    color = fields.Integer()

estate/models/estate_property_type.py

@@ -0,0 +1,25 @@
+from odoo import fields, models
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real Estate Property Type"
+    _order = "name"
+
+    _name_uniq = models.Constraint(
+        "unique(name)",
+        "A type with the same name already exists.",
+    )
+
+    name = fields.Char("Title", required=True)
+    property_ids = fields.One2many("estate.property", "property_type_id")
+    sequence = fields.Integer(
+        "Sequence", default=1, help="Used to order property-types. Lower is better."
+    )
+
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    offer_count = fields.Integer(compute="_offer_count")
+
+    def _offer_count(self):
+        for property_type in self:
+            property_type.offer_count = len(property_type.offer_ids)

estate/models/res_users.py

@@ -0,0 +1,10 @@
+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _inherit = "res.users"
+    property_ids = fields.One2many(
+        "estate.property",
+        "salesperson_id",
+        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
+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

estate/views/estate_menus.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <menuitem id="estate_menu_root" name="Real Estate">
+        <menuitem id="estate_property_menu" name="Advertisements">
+            <menuitem id="estate_property_menu_action" action="estate_property_action"/>
+        </menuitem>
+        <menuitem id="estate_property_settings_menu" name="Settings">
+            <menuitem id="estate_property_type_menu_action" action="estate_property_type_action"/>
+            <menuitem id="estate_property_tag_menu_action" action="estate_property_tag_action"/>
+        </menuitem>
+    </menuitem>
+</odoo>

estate/views/estate_property_offer_views.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="estate_property_offer_form" model="ir.ui.view">
+        <field name="name">estate.property.offer.form</field>
+        <field name="model">estate.property.offer</field>
+        <field name="arch" type="xml">
+            <form string="Offer">
+                <group><field name="price"/></group>
+                <group><field name="partner_id"/></group>
+                <group><field name="validity"/></group>
+                <group><field name="date_deadline"/></group>
+                <group><field name="status"/></group>
+            </form>
+        </field>
+    </record>
+
+    <record id="estate_property_offer_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="Offers" editable="bottom" decoration-danger="status == 'refused'" decoration-success="status == 'accepted'">
+                <field name="price"/>
+                <field name="partner_id"/>
+                <field name="validity"/>
+                <field name="date_deadline"/>
+                <button name="accept_offer" string="Accept" type="object" icon="fa-check" invisible="status"/>
+                <button name="refuse_offer" string="Refuse" type="object" icon="fa-times" invisible="status"/>
+            </list>
+        </field>
+    </record>
+        <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>
+</odoo>

estate/views/estate_property_tag_views.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0"?>
+<odoo>
+    <record id="estate_property_tag_action" model="ir.actions.act_window">
+        <field name="name">Property Tags</field>
+        <field name="res_model">estate.property.tag</field>
+        <field name="view_mode">list,form</field>
+    </record>
+    <record id="estate_property_tag_view_form" model="ir.ui.view">
+        <field name="name">estate.property.tag.form</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <group>
+                        <field name="name"/>
+                        <field name="color" widget="color_picker"/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+        <record id="estate_property_tag_list" model="ir.ui.view">
+        <field name="name">estate.property.tag.list</field>
+        <field name="model">estate.property.tag</field>
+        <field name="arch" type="xml">
+            <list string="Tags" editable="bottom">
+                <field name="name"/>
+                <field name="color" widget="color_picker"/>
+            </list>
+        </field>
+    </record>
+</odoo>