harvesthq/api — pull request #18 by prsimp (2013-11-01 15:49:25+00:00)
Title: Be more explicit about the meaning of `retainer_id` in invoice output

@lanej0 @bjhess @scottsemple

The presence of a `retainer_id` indicates that the invoice funded a retainer. It has no relation to whether the invoice is drawing from a retainer. This hopefully makes that more explicit.

Currently there is no indication that an invoice is *drawing from* an existing retainer.