Backlight provides a function to migrate all existing albums in a CE4 site to Backlight. In order to migrate CE4 albums, the ttg-be and backlight directories must reside at the same level of your site. Backlight must also have been set up, following our Installation & Setup guide.
It should be noted, that migration applies to all CE4 albums, and will replace all Backlight albums. As such, it is strongly recommended to only migrate to an instance of Backlight that does not include any albums. Two approaches to this are to test Backlight at a different location such as a subdirectory (e.g. at http://yoursite.com/backlight-test/backlight with albums at http://yoursite.com/backlight-test/galleries), or to remove all albums within your Backlight instance prior to migrating from CE4.
An example setup would include these directories (amongst others):
galleries/ ttg-be/ backlight/
Prior to migration, the albums within galleries/ will be managed by the CE4 engine within ttg-be/. After migration, the albums will be managed by Backlight within backlight/.
To perform the migration:
Migration is then performed in two steps:
After migrating in the backend, you'll need to change your API URL (and optionally API Key) for each Publisher instance in Lightroom. Double-click the Publisher instance and change these accordingly. For example, a CE4 API URL may be in the form http://yoursite.com/ttg-be/publisher/. You would change this to http://yoursite.com/backlight/publisher/
Depending on your template designs, further, optional, steps may be useful: