My current site is a music community where artists upload tracks & rate & give feedback to other artists.
It's an old asp site on a MSSQL 2005 database.
There are over 14,000 members, 22,000 mp3's (stored in S3), and near 100,000 reviews (comments, all over 128 char).
I have been looking into how to import the database content to Drupal 7 and have come across the Migrate and the Feeds modules.
I can't figure out where to find the UI for Migrate so moved on to try Feeds... which worked when I tried the default user import which has only 3 fields. My confusion lies with the apparently limited built in mapping capabilities. My users database has fields that aren't available with the mappers(?) and my mp3 database needs a field that links to the file on Amazon S3, an associated imageID, genre & mood (taxonomies right?), CC License type and so on.
For my communities other content like dj-mixes, synth patches & presets etc again... how do import the appropriate info to the drupal database and have the nodes for this created at the same time? Do I create content types &... fields related to them first... then map to those?? not sure I know what I'm talking about :P
Will I have to create my own custom mapper/importers?
Please forgive me for being a noob. I'll pick it up quick with some good direction I'm sure.