ets-berkeley-edu/datacultures — pull request #213 by coyote (2014-12-05 20:18:48+00:00)
Title: CYB-358 Process Youtube URLs

* add specs for string_refinement
* return empty thumbnail_url when a submitted URL is not YT or Vimeo
* pass site_tag and site_id as string, not symbol
* use regexp matching with anchor for efficiency
* use #try to avoid undefined method on nil

[CYB-358 Process Youtube URLs](https://jira.ets.berkeley.edu/jira/browse/CYB-358)