How can I migrate without losing my data?
First of all, NEVER uninstall your module before this process.
If you want to migrate your shop to a new installation or a new version of PrestaShop without losing the configuration of your filters, you have to export them using the following procedure:
Connect to your MySQL database from your PHPMyAdmin account and:
- Copy all the tables prefixed with pm_advancedsearch_ * into your new database
- Inside the "configuration" table, copy the different configurations of your filters (anything with the prefix PM_AS4_ *), in the "configuration" table of your new database
Keep in mind that in order for this copy to conform to your original version, you will need to have the same IDs for products/categories, etc.
Install the module in your new version. You will find all your filters and your configuration as before.
It may be necessary to do a complete re-indexing at the end of the installation process. To do that, please follow this FAQ.