How do I add taxonomy terms using Drupal Migrate

Question

I'm using the migrate module to copy data from several sources to a new drupal installation. So far, I'm able to replicate a lot of what I need from the examples provided with the module. I'm currently stuck on adding terms or taxonomy to newly created nodes. The example shows:

// These are related terms, which by default will be looked up by name
$this->addFieldMapping('migrate_example_beer_styles', 'terms')
     ->separator(',');

I've tracked down the migrate_example_beer_styles destination mapping and it seems to be the machine name for that taxonomy.

I've tried imitating this behavior with every variation of what my machine_name should be, but the terms never seem to get associated:

By id:

// where source breed_id is '1,100' - it finds mapped values accordingly
$this->addFieldMapping('breeds', 'breed_id')
     ->sourceMigration('BreedMigration')
     ->separator(',')

And, by name:

// where source breeds is 'Dogs,German Shepherd'
$this->addFieldMapping('breeds', 'breeds')
     ->separator(',');

Am I wrong assuming the destination mapping is the machine name for a taxonomy?

This version of the migrate module was released recently, I haven't found any other helpful examples on the web.

Answer 1

This question still seems to be getting some views, so I thought I'd add what else I've discovered. While the accepted answer works, you are able to map Vocabs on ID:

$this->addFieldMapping('Exact Case Sensitive Vocab Name', 'source_field_name')
     ->sourceMigration('ExactSourceClassName')
     ->arguments(array('source_type' => 'tid'))
     ->separator(',');

->separator(',') used for passing a delimited string of source ids. Obviously, leave that off if you're mapping an array of values.