Onboarding Juica Server 101

estate/__init__.py

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+from . import models

estate/__manifest__.py

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+{
+    'name': 'Real Estate',
+    'version': '0.0',
+    'depends': [
+        'base',
+    ],
+    '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/res_users_views.xml',
+        'views/estate_menus.xml',
+    ],
+    'installable': True,
+    'application': True,
+    'author': 'juica',
+    'license': 'LGPL-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 res_user

estate/models/estate_property.py

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+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError, ValidationError
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+
+class EstateProperty(models.Model):
+    _name = "estate.property"
+    _description = "Real Estate Property"
+    _order = "id desc"
+
+    name = fields.Char('Property Name', required=True, translate=True)
+    description = fields.Text('Description', translate=True)
+    postcode = fields.Char('Post Code', required=True)
+    date_availability = fields.Date(
+        'Availability Date',
+        required=True,
+        copy=False,
+        default=fields.Date.today() + relativedelta(months=3),
+    )
+    type_id = fields.Many2one("estate.property.type", string="Type", required=True)
+    offer_ids = fields.One2many("estate.property.offer", "property_id")
+    tag_ids = fields.Many2many("estate.property.tag", string="Tags")
+    salesperson_id = fields.Many2one(
+        "res.users",
+        string="Salesperson",
+        default=lambda self: self.env.user,
+    )
+    buyer_id = fields.Many2one(
+        "res.partner",
+        string="Buyer",
+        copy=False,
+    )
+    expected_price = fields.Float('Expected Price')
+    selling_price = fields.Float(
+        'Selling Price',
+        readonly=True,
+        copy=False,
+    )
+    bedrooms = fields.Integer(
+        '# Bedrooms',
+        default=2,
+    )
+    facades = fields.Integer('# Facades')
+    garage = fields.Boolean('Garage')
+    garden = fields.Boolean('Garden')
+    living_area = fields.Integer('Living Area mt²')
+    garden_area = fields.Integer('Garden mt²')
+    garden_orientation = fields.Selection(
+        string='Garden Orientation',
+        selection=[
+            ('north', 'North'),
+            ('south', 'South'),
+            ('east', 'East'),
+            ('west', 'West'),
+        ],
+    )
+    active = fields.Boolean('Active', default=True)
+    state = fields.Selection(
+        string='State',
+        selection=[
+            ('new', 'New'),
+            ('offer_received', 'Offer Received'),
+            ('offer_accepted', 'Offer Accepted'),
+            ('sold', 'Sold'),
+            ('cancelled', 'Cancelled'),
+        ],
+        default="new",
+        copy=False,
+        required=True,
+        readonly=True,
+        # group_expand=True
+    )
+    total_area = fields.Integer(
+        "Total Area m²",
+        compute="_compute_total_area",
+    )
+    best_price = fields.Float(
+        "Best Price",
+        compute="_compute_best_price",
+    )
+
+    @api.depends("living_area", "garden_area")
+    def _compute_total_area(self):
+        for property in self:
+            property.total_area = property.living_area + property.garden_area
+
+    @api.depends("offer_ids.price")
+    def _compute_best_price(self):
+        for property in self:
+            property.best_price = max(property.offer_ids.mapped("price"), default=0)
+
+    @api.onchange("garden")
+    def _onchange_garden(self):
+        if self.garden:
+            self.garden_area = 10
+            # Nasty magic string. I should turn the option into a variable and then reference it
+            self.garden_orientation = "north"
+            return
+
+        self.garden_area = 0
+        self.garden_orientation = None
+
+    def action_sold(self):
+        for property in self:
+            if not property.selling_price:
+                raise UserError("You can not sell a property without accepted offers")
+
+            if property.state == "cancelled":
+                raise UserError("You can not sell a cancelled property")
+
+            property.state = "sold"
+
+        return True
+
+    def action_cancel(self):
+        for property in self:
+            if property.state == "sold":
+                raise UserError("You can not cancel a sold property")
+
+            property.state = "cancelled"
+
+        return True
+
+    _exp_price_positive = models.Constraint(
+        'CHECK(expected_price > 0)',
+        'The property expected price must be strictly positive',
+    )
+
+    _sell_price_positive = models.Constraint(
+        'CHECK(selling_price >= 0)',
+        'The property selling price must be positive',
+    )
+
+    @api.constrains("selling_price", "expected_price")
+    def _check_selling_price(self):
+        for property in self:
+            if float_is_zero(property.selling_price, precision_digits=2):
+                continue
+
+            limit = 0.9 * property.expected_price
+            if float_compare(property.selling_price, limit, precision_digits=2) == -1:
+                raise ValidationError("The property selling price must be at least 90% of the expected price")
+
+    @api.ondelete(at_uninstall=False)
+    def _unlink_except_not_new_or_cancelled(self):
+        for property in self:
+            if property.state not in ('new', 'cancelled'):
+                raise UserError("You can not delete a property that is not either 'new' or 'cancelled'")

estate/models/estate_property_offer.py

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+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+from odoo.tools.float_utils import float_compare, float_is_zero
+
+
+class EstatePropertyOffer(models.Model):
+    _name = "estate.property.offer"
+    _description = "Real Estate Property Offer"
+    _order = "price desc"
+
+    price = fields.Float('Price', required=True)
+    property_id = fields.Many2one('estate.property', 'property_id', required=True)
+    partner_id = fields.Many2one('res.partner', required=True)
+    status = fields.Selection(
+        string='Status',
+        copy=False,
+        selection=[
+            ('accepted', 'Accepted'),
+            ('refused', 'Refused'),
+        ],
+    )
+    property_type_id = fields.Many2one(related="property_id.type_id", store=True)
+    validity = fields.Integer(
+        "Validity (days)",
+        default=7,
+        required=True,
+    )
+    date_deadline = fields.Date(
+        "Deadline",
+        required=True,
+        compute="_compute_deadline",
+        inverse="_inverse_deadline",
+    )
+
+    @api.depends("validity")
+    def _compute_deadline(self):
+        for offer in self:
+            offer.date_deadline = fields.Date.today() + relativedelta(days=offer.validity)
+
+    def _inverse_deadline(self):
+        for offer in self:
+            delta = offer.date_deadline - fields.Date.today()
+            offer.validity = delta.days
+
+    def action_offer_accept(self):
+        for offer in self:
+            if offer.property_id.state in ('offer_accepted', 'sold', 'cancelled'):
+                raise UserError("You can not accept more offers for this property")
+
+            offer.status = "accepted"
+            offer.property_id.state = "offer_accepted"
+            offer.property_id.buyer_id = offer.partner_id
+            offer.property_id.selling_price = offer.price
+
+        return True
+
+    def action_offer_refuse(self):
+        for offer in self:
+            offer.status = "refused"
+
+        return True
+
+    _price_positive = models.Constraint(
+        'CHECK(price > 0)',
+        'The offer price must be strictly positive',
+    )
+
+    @api.model_create_multi
+    def create(self, values):
+        # Get the lowest new offer per property
+        prop_min_offer = {}
+        for v in values:
+            pid = v['property_id']
+            prop_min_offer[pid] = min(prop_min_offer.get(pid, float('inf')), v.get('price', 0))
+
+        # Browse the properties referenced by the new offers
+        properties = self.env['estate.property'].browse(prop_min_offer.keys())
+
+        for prop in properties:
+            if prop.state in ('sold', 'cancelled'):
+                raise UserError("You can not make an offer on a sold or cancelled property")
+
+            # No new offer may be lower than the best existing one
+            best_existing = prop.offer_ids[0].price if len(prop.offer_ids) else 0.0
+
+            if float_is_zero(best_existing, precision_digits=2):
+                continue
+
+            if float_compare(prop_min_offer[prop.id], best_existing, precision_digits=2) == -1:
+                raise UserError("You can not offer less than the biggest offer")
+
+        properties.filtered(lambda p: p.state == 'new').state = 'offer_received'
+
+        return super().create(values)

estate/models/estate_property_tag.py

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+from odoo import fields, models
+
+
+class EstatePropertyTag(models.Model):
+    _name = "estate.property.tag"
+    _description = "Real Estate Property Tag"
+    _order = "name"
+
+    name = fields.Char('Tag Name', required=True, translate=True)
+    color = fields.Integer(string="Color Index")
+
+    _uniq_name = models.Constraint(
+        'UNIQUE(name)',
+        'The tag name must be unique',
+    )

estate/models/estate_property_type.py

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+from odoo import api, fields, models
+
+
+class EstatePropertyType(models.Model):
+    _name = "estate.property.type"
+    _description = "Real Estate Property Type"
+    _order = "sequence"
+
+    name = fields.Char('Type Name', required=True, translate=True)
+    sequence = fields.Integer('Sequence', default=1)
+
+    property_ids = fields.One2many("estate.property", "type_id")
+    offer_ids = fields.One2many("estate.property.offer", "property_type_id")
+    offer_count = fields.Integer(compute="_compute_offer_count", default=0)
+
+    @api.depends("offer_ids")
+    def _compute_offer_count(self):
+        for offer in self:
+            offer.offer_count = len(offer.offer_ids)
+
+    _uniq_name = models.Constraint(
+        'UNIQUE(name)',
+        'The type name must be unique',
+    )

estate/models/res_user.py

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+from odoo import fields, models
+
+
+class ResUser(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

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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_user,access_estate_property_type_user,model_estate_property_type,base.group_user,1,0,0,0
+access_estate_property_type_admin,access_estate_property_type_admin,model_estate_property_type,base.group_system,1,1,1,1
+access_estate_property_tag_user,access_estate_property_tag_user,model_estate_property_tag,base.group_user,1,0,0,0
+access_estate_property_tag_admin,access_estate_property_tag_admin,model_estate_property_tag,base.group_system,1,1,1,1
+access_estate_property_offer,access_estate_property_offer,model_estate_property_offer,base.group_user,1,1,1,1

estate/tests/__init__.py

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+from . import test_property