[IMP] estate: Added User Inheritance and property listing

Chapter 12 : Add model inheritance to link properties with users
Show available properties on the user form view
Add view inheritance to display properties in a separate notebook tab

Author: haman-odoo

estate/__manifest__.py

@@ -12,6 +12,7 @@
        'views/estate_property_type_views.xml',
        'views/estate_property_tag_views.xml',
        'views/estate_property_views.xml',
+       'views/res_users_views.xml',
        'views/estate_menus.xml'
     ],
     'category': 'Sales/Real Estate',

estate/models/__init__.py

@@ -1,4 +1,5 @@
 from . import estate_property
+from . import estate_property_offer
 from . import estate_property_type
 from . import estate_property_tag
-from . import estate_property_offer
+from . import res_users

estate/models/estate_property.py

@@ -126,3 +126,11 @@ def _check_selling_price(self):
                     "The selling price must be at least 90% of the expected price!\n"
                     "You must reduce the expected price if you want to accept this offer."
                 ))
+
+    @api.ondelete(at_uninstall=False)
+    def _check_property_deletion(self):
+        for rec in self:
+            if rec.state not in ("new", "cancelled"):
+                raise exceptions.UserError(_(
+                    "You can only delete properties in New or Cancelled state."
+                ))

estate/models/estate_property_offer.py

@@ -1,7 +1,6 @@
 from dateutil.relativedelta import relativedelta
 
-from odoo import models, fields, api
-from odoo.exceptions import UserError
+from odoo import models, fields, api, exceptions, _
 
 
 class EstatePropertyOffer(models.Model):
@@ -66,3 +65,16 @@ def action_refuse(self):
         for offer in self:
             offer.status = 'refused'
         return True
+
+    @api.model
+    def create(self, vals):
+        for rec in vals:
+            property_id = rec.get('property_id')
+            price = rec.get('price', 0.0)
+            if property_id:
+                property_obj = self.env['estate.property'].browse(property_id)
+                best_offer = property_obj.best_price or 0.0
+                if price < best_offer:
+                    raise exceptions.UserError(_(
+                        'Offer price must be greater than or equal to the best offer price.'))
+        return super().create(vals)

estate/models/res_users.py

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

estate/views/estate_property_type_views.xml

@@ -23,7 +23,6 @@
                     <group>
                         <field name="name" />
                     </group>
-
                     <notebook>
                         <page string="Properties">
                             <field name="property_ids">
@@ -35,7 +34,6 @@
                             </field>
                         </page>
                     </notebook>
-
                 </sheet>
             </form>
         </field>

estate/views/res_users_views.xml

@@ -0,0 +1,25 @@
+<odoo>
+    <record id="view_res_users_form" model="ir.ui.view">
+        <field name="name">res.users.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">
+                        <list>
+                            <field name="name"/>
+                            <field name="property_type_id"/>
+                            <field name="postcode"/>
+                            <field name="tag_ids" widget="many2many_tags"/>
+                            <field name="bedrooms"/>
+                            <field name="living_area"/>
+                            <field name="expected_price"/>
+                            <field name="selling_price"/>
+                        </list>
+                    </field>
+                </page>
+            </xpath>
+        </field>
+    </record>
+</odoo>