[IMP] estate: add inheritance-based business logic

• Restrict property deletion by state
• Update property state on offer creation
• Prevent offers below best price
• Show related properties on users form

Author: snrav-odoo

estate/__manifest__.py

@@ -12,6 +12,7 @@
          'views/estate_property_offer_views.xml',
         'views/estate_property_type_views.xml',
         'views/estate_property_tag_views.xml',
+        'views/res_user_views.xml',
         'views/estate_property_menu.xml'
         ],
     'application': True,

estate/models/__init__.py

@@ -2,3 +2,4 @@
 from . import estate_property_type
 from . import estate_property_tag
 from . import estate_property_offer
+from . import res_users

estate/models/estate_property_offer.py

@@ -1,6 +1,7 @@
 from dateutil.relativedelta import relativedelta
 
 from odoo import models, api, fields
+from odoo.exceptions import UserError
 
 
 class EstatePropertyOffer(models.Model):
@@ -47,3 +48,16 @@ def action_refuse(self):
             record.property_id.selling_price = 0.00
             record.property_id.customer = None
         return True
+
+    @api.model
+    def create(self, vals):
+        if len(vals) > 0:
+            property = self.env["estate.property"].browse(vals[0]["property_id"])
+        for record in vals:
+            if property.state == "new":
+                property.state = "offer_received"
+            if record["price"] < property.best_price:
+                raise UserError(
+                    "Offer with an amount lower than an existing offer cannot be created."
+                )
+        return super().create(vals)

estate/models/res_users.py

@@ -0,0 +1,11 @@
+from odoo import fields, models
+
+
+class ResUser(models.Model):
+    _inherit = "res.users"
+
+    property_ids = fields.One2many(
+        "estate.property",
+        "salesperson",
+        domain="[('state', '!=', 'sold')]"
+    )

estate/views/res_user_views.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<odoo>
+    <record id="res_users_form_inherit" model="ir.ui.view">
+        <field name="name">User Inheritance</field>
+        <field name="model">res.users</field>
+        <field name="inherit_id" ref="base.view_users_form"/>
+        <field name="arch" type="xml">
+            <notebook>
+                <page name="Properties">
+                    <field name="property_ids"/>
+                </page>
+            </notebook>
+        </field>
+    </record>
+</odoo>