[ADD] estate: Chapter 12 - add inheritances

Implement inherited user model and views, add CRUD validation for property offers

Author: joyep

estate/__manifest__.py

@@ -10,6 +10,7 @@
         "views/estate_property_type_views.xml",
         "views/estate_property_tag_views.xml",
         "views/estate_menus.xml",
+        "views/inherited_users_views.xml",
     ],
     "installable": True,
     "application": True,

estate/models/__init__.py

@@ -3,4 +3,5 @@
     estate_property_offer,
     estate_property_tag,
     estate_property_type,
+    res_users,
 )

estate/models/estate_property.py

@@ -99,6 +99,16 @@ def _onchange_garden(self):
             if not self.garden_orientation:
                 self.garden_orientation = "north"
 
+    # ----------------------------------------
+    # CRUD methods
+    # ----------------------------------------
+    @api.ondelete(at_uninstall=False)
+    def _unlink_if_new_or_canceled(self):
+        for record in self:
+            if record.status not in ("new", "canceled"):
+                msg = "You can only delete properties with status 'New' or 'Canceled'."
+                raise UserError(msg)
+
     # ----------------------------------------
     # Action methods
     # ----------------------------------------

estate/models/estate_property_offer.py

@@ -63,6 +63,19 @@ def _inverse_date_deadline(self):
     # ----------------------------------------
     @api.model_create_multi
     def create(self, vals_list):
+        # Validate offer amounts before creation
+        for vals in vals_list:
+            if "property_id" in vals and "price" in vals:
+                # Get the property record
+                property_record = self.env["estate.property"].browse(vals["property_id"])
+                # Check if there are existing offers with higher or equal prices
+                existing_offers = property_record.offer_ids
+                if existing_offers:
+                    max_existing_price = max(existing_offers.mapped("price"))
+                    if vals["price"] <= max_existing_price:
+                        msg = f"The offer amount must be higher than the existing offer of {max_existing_price}."
+                        raise UserError(msg)
+
         # Create the offers
         offers = super().create(vals_list)
         # Update property status to 'offer_received' for all related properties

estate/models/res_users.py

@@ -0,0 +1,13 @@
+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    # ----------------------------------------
+    # Private attributes
+    # ----------------------------------------
+    _inherit = "res.users"
+
+    # ----------------------------------------
+    # Field declarations
+    # ----------------------------------------
+    property_ids = fields.One2many("estate.property", "salesperson_id", string="Real Estate Properties")

estate/views/inherited_users_views.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+<data>
+
+    <record id="res_users_view_form" model="ir.ui.view">
+        <field name="name">res.users.view.form.inherit.estate</field>
+        <field name="model">res.users</field>
+        <field name="inherit_id" ref="base.view_users_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//notebook" position="inside">
+                <page string="Real Estate Properties">
+                    <field name="property_ids"/>
+                </page>
+            </xpath>
+        </field>
+    </record>
+
+</data>
+</odoo>