variations-on-video/hydrant — pull request #7 by atomical (2012-12-10 21:48:56+00:00)
Title: cleaning this up so that it reorders master files correctly

When dragging a file to move it in the structure step:

Completed 500 Internal Server Error in 96ms

NoMethodError (undefined method `parts_remove' for #):
app/models/structure_step.rb:18:in `block in execute'
app/models/structure_step.rb:17:in `each'
app/models/structure_step.rb:17:in `execute'