first commit

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nosenv/
+.pytest_cache/
+.mypy_cache/
+.pyre/
+.pytype/
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff (not Odoo, but good to have)
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, poetry.lock contains the resolved dependencies and should be tracked
+#   unless you have platform-specific dependencies.
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, pdm.lock contains the resolved dependencies and should be tracked
+#   unless you have platform-specific dependencies.
+#pdm.lock
+
+# virtualenv
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# Editors
+.vscode/
+.idea/
+*.swp
+*.swo
+*~

README.md

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+# Account Online Synchronization Patch
+
+This module is a clean customization designed to prevent the Odoo single-threaded Werkzeug server from freezing, hanging, or entering infinite loops when accessing the Accounting Dashboard in non-production, testing, staging, or local development environments.
+
+## Problem Statement
+
+When the Odoo Accounting App/Dashboard is loaded, the frontend makes standard RPC requests to the `fetch_online_sync_favorite_institutions` method on the `account.journal` model for each cash/bank journal. By default, Odoo's core `account_online_synchronization` module executes synchronous HTTP calls to `odoofin.com` with a 60-second timeout.
+
+On testing, staging, or duplicated local database instances, or in environments with restricted external internet access:
+1. These synchronous requests hang.
+2. Because Odoo runs single-threaded in standard development and test modes, the entire server process blocks.
+3. This creates sequential gateway timeouts (HTTP 502/504), heavy browser lags, and infinite loading loops.
+
+## Solution
+
+To resolve this issue cleanly **without modifying core/enterprise source code**, this module applies standard Odoo model inheritance:
+* **Inherited Model**: `account.journal`
+* **Mechanism**: Overrides `fetch_online_sync_favorite_institutions()`.
+* **Behavior**: Checks the `database.is_neutralized` configuration parameter. If the database is neutralized (which is typical for test/staging clones), it returns an empty list `[]` immediately without making any outbound external network requests. If the database is not neutralized (i.e. production), it forwards the execution to the parent module (`super()`).
+
+## Installation
+
+### Dependencies
+* `account_online_synchronization` (Enterprise module)
+
+### Auto-installation
+This module is configured with `'auto_install': True` and `'depends': ['account_online_synchronization']`. It will automatically install and activate as soon as the base online sync module is present in the database registry.
+
+### Manual CLI Installation
+To explicitly register and install the module via command line:
+```bash
+./odoo-bin -c odoo.conf -d <your_database> -i account_online_sync_patch --stop-after-init
+```
+
+## Changelog
+
+### v19.0.1.0.0
+* Initial release.
+* Added `account.journal` override for `fetch_online_sync_favorite_institutions` to bypass external connections on neutralized databases.

__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import models

__manifest__.py

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+# -*- coding: utf-8 -*-
+{
+    'name': 'Account Online Synchronization Patch',
+    'version': '19.0.1.0.0',
+    'category': 'Accounting',
+    'summary': 'Patch account online synchronization to prevent infinite loops and hangs on neutralized databases.',
+    'description': """
+This module overrides the `fetch_online_sync_favorite_institutions` method on `account.journal`
+to immediately return empty list `[]` if the database is neutralized (`database.is_neutralized` is true),
+avoiding external requests that lock up Odoo's single-threaded Werkzeug server.
+    """,
+    'author': 'Suherdy Yacob',
+    'depends': ['account_online_synchronization'],
+    'data': [],
+    'installable': True,
+    'auto_install': True,
+    'license': 'LGPL-3',
+}

models/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import account_journal

models/account_journal.py

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+# -*- coding: utf-8 -*-
+
+from odoo import models
+
+class AccountJournal(models.Model):
+    _inherit = 'account.journal'
+
+    def fetch_online_sync_favorite_institutions(self):
+        # Prevent hangs/infinite loops on neutralized databases by bypassing external API calls.
+        if self.env['ir.config_parameter'].sudo().get_param('database.is_neutralized'):
+            return []
+        return super(AccountJournal, self).fetch_online_sync_favorite_institutions()