A MigrateFieldHandler for Link Module

This is a blog post copied from John's Website - please feel free to join him there and post comments. He has set up openid, so you can post there with your livejournal account using your openid, which is the same as your journal url minus the http://. You can find this entry at http://www.jcfiala.net/blog/2010/12/30/migratefieldhandler-link-module.

I continue my work with the Migrate Module, and recently ran into needing to migrate a value to the Link Module. If you haven't gotten into it yet, Migrate generally expects other modules to handle migrating special bits for nodes, except for the CCK module, and that's included both (I think) because it's in D7 core and because it's so bloody common. Field-specific handling is dealt with by implementing a MigrateFieldHandler, which basically sets up the arrays properly. Again, migrate comes with a number of MigrateFieldHandler classes for the core cck fields, but not for custom CCK fields, like Link.

So, having recently run into a link field I needed to migrate, this is a first swing attempt at handling it. Do note that any module that includes this class will need the Migrate api hook that I discussed in my last post, and also note that I intend on including this fix in the next release of the Link module.

( Read more... )