Problem: Supervisors on slow mobile connections sometimes double-click the "Pay" button, causing two PayrollRecords + two payslip emails to be sent to Spark Receipt for the same worker. Backend fix (the critical part): - Moved unpaid_logs and pending_adjs queries INSIDE transaction.atomic() - Added select_for_update() on Worker row — this database-level lock forces the second concurrent request to WAIT until the first commits - After the lock is acquired, the second request re-queries and finds no unpaid logs (already paid by first request), so it bails out Frontend fix (defence-in-depth): - Pay button now shows a Bootstrap spinner + "Processing..." text - Second click is blocked with e.preventDefault() if button is already disabled (handles edge case where form resubmits) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Flatlogic Python Template Workspace
This workspace houses the Django application scaffold used for Python-based templates.
Requirements
- Python 3.11+
- MariaDB (or MySQL-compatible server) with the credentials prepared by
setup_mariadb_project.sh - System packages:
pkg-config,libmariadb-dev(already installed on golden images)
Getting Started
python3 -m pip install --break-system-packages -r requirements.txt
python3 manage.py migrate
python3 manage.py runserver 0.0.0.0:8000
Environment variables are loaded from ../.env (the executor root). See .env.example if you need to populate values manually.
Project Structure
config/– Django project settings, URLs, WSGI entrypoint.core/– Default app with a basic health-check route.manage.py– Django management entrypoint.
Next Steps
- Create additional apps and views according to the generated project requirements.
- Configure serving via Apache + mod_wsgi or gunicorn (instructions to be added).
- Run
python3 manage.py collectstaticbefore serving through Apache.
Description
Languages
JavaScript
42.5%
SCSS
41.7%
CSS
11.9%
Python
3.2%
HTML
0.6%