first commit

__init__.py

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+from . import models

__manifest__.py

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+{
+    'name': 'Approval Cleaner',
+    'version': '1.0',
+    'summary': 'Delete approvals older than a specified date',
+    'category': 'Administration',
+    'author': 'Antigravity',
+    'depends': ['approvals'],
+    'data': [
+        'security/ir.model.access.csv',
+        'views/approval_cleaner_wizard_views.xml',
+    ],
+    'installable': True,
+    'application': False,
+    'license': 'LGPL-3',
+}

models/__init__.py

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+from . import approval_cleaner_wizard

models/approval_cleaner_wizard.py

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+from odoo import models, fields, _
+from odoo.exceptions import UserError
+
+class ApprovalCleanerWizard(models.TransientModel):
+    _name = 'approval.cleaner.wizard'
+    _description = 'Approval Cleaner Wizard'
+
+    date_end = fields.Date(string="End Date", required=True, help="Delete all approvals created before this date")
+
+    def action_clean_approvals(self):
+        self.ensure_one()
+        # Search for approvals created before the specified date
+        # using 'create_date' as it is the standard Odoo field for creation time.
+        # However, the user request mentioned "Date below specified date i provide".
+        # 'approval.request' has a 'date' field (which seems to be a datetime) and 'create_date'.
+        # I will use 'date' field as per the user's initial description if implicit, but looking at approval_request.py
+        # date = fields.Datetime(string="Date")
+        # So I will use that.
+        
+        domain = [('date', '<', self.date_end)]
+        approvals_to_delete = self.env['approval.request'].sudo().search(domain)
+        count = len(approvals_to_delete)
+
+        # Detach attachments to bypass ir.attachment unlink restriction
+        attachments = self.env['ir.attachment'].sudo().search([
+            ('res_model', '=', 'approval.request'),
+            ('res_id', 'in', approvals_to_delete.ids),
+        ])
+        if attachments:
+            attachments.write({'res_model': 'approval.cleaner.temp', 'res_id': 0})
+
+        approvals_to_delete.unlink()
+        
+        # Now delete the attachments safely
+        if attachments:
+            attachments.unlink()
+        
+        return {
+            'type': 'ir.actions.client',
+            'tag': 'display_notification',
+            'params': {
+                'title': _('Success'),
+                'message': _('%s approvals have been deleted.', count),
+                'type': 'success',
+                'sticky': False,
+                'next': {'type': 'ir.actions.act_window_close'},
+            }
+        }

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_approval_cleaner_wizard,approval.cleaner.wizard,model_approval_cleaner_wizard,approvals.group_approval_manager,1,1,1,1

tests/__init__.py

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+from . import test_approval_cleaner

tests/test_approval_cleaner.py

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+from odoo.tests import common
+from odoo import fields
+from datetime import timedelta
+
+class TestApprovalCleaner(common.TransactionCase):
+    def setUp(self):
+        super(TestApprovalCleaner, self).setUp()
+        self.ApprovalRequest = self.env['approval.request']
+        self.category = self.env['approval.category'].create({
+            'name': 'Test Category',
+            'has_date': 'required',
+        })
+        
+        # Create approvals with different dates
+        self.approval_old = self.ApprovalRequest.create({
+            'name': 'Old Approval',
+            'category_id': self.category.id,
+            'date': fields.Datetime.now() - timedelta(days=100),
+        })
+        
+        self.approval_new = self.ApprovalRequest.create({
+            'name': 'New Approval',
+            'category_id': self.category.id,
+            'date': fields.Datetime.now() - timedelta(days=10),
+        })
+
+    def test_clean_approvals(self):
+        wizard = self.env['approval.cleaner.wizard'].create({
+            'date_end': fields.Date.today() - timedelta(days=30),
+        })
+        
+        wizard.action_clean_approvals()
+        
+        # Check that old approval is deleted
+        self.assertFalse(self.approval_old.exists(), "Old approval should be deleted")
+        
+        # Check that new approval still exists
+        self.assertTrue(self.approval_new.exists(), "New approval should not be deleted")

views/approval_cleaner_wizard_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_approval_cleaner_wizard_form" model="ir.ui.view">
+        <field name="name">approval.cleaner.wizard.form</field>
+        <field name="model">approval.cleaner.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Clean Approvals">
+                <group>
+                    <div class="alert alert-warning" role="alert">
+                        <strong>Warning:</strong> This action will permanently delete all approval requests created before the selected date. This cannot be undone.
+                    </div>
+                    <field name="date_end"/>
+                </group>
+                <footer>
+                    <button name="action_clean_approvals" string="Delete Approvals" type="object" class="btn-danger"/>
+                    <button string="Cancel" class="btn-secondary" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="action_approval_cleaner_wizard" model="ir.actions.act_window">
+        <field name="name">Clean Approvals</field>
+        <field name="res_model">approval.cleaner.wizard</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+
+    <menuitem id="menu_approval_cleaner_wizard"
+              name="Clean Approvals"
+              parent="approvals.approvals_menu_config"
+              action="action_approval_cleaner_wizard"
+              sequence="100"/>
+</odoo>