- Download and upload the 'db_sync' folder to your Symphony 'extensions' folder.
- Enable the extension by selecting "Database Synchroniser" in the list and choose Enable from the with-selected menu, then click Apply.
As of version 0.7, queries are stored in a file named db_sync.sql in your /manifest folder. This file is visible to anyone, therefore I strongly advise that this extension only be enabled on development environments. Don't deploy it to production, or disable it entirely by looking for db_sync in Symphony's config file.
While this extension has worked well for my own projects, I can't guarantee its stability for your own. My workflow when using a development/staging/production environment is to install this extension on the development server only. When making a release I pull the production database back to staging where I apply the db_sync SQL file. If all goes well after testing, I back up production and run the same db_sync file there. The file is then removed locally and I can continue developing towards another release.
Please, please, please back up your production database before applying any structural changes.