Accessing `/sets/asdasd/edit` where asdasd is a previously defined video set gives a SyntaxError:

```
/Users/Simon/Coding/Yalies-On-Rails-2014-Spring/assignments/sinatraapp/Peter_Nguyen/views/edit.erb:12: syntax error, unexpected keyword_ensure, expecting ')' /Users/Simon/Coding/Yalies-On-Rails-2014-Spring/assignments/sinatraapp/Peter_Nguyen/views/edit.erb:14: syntax error, unexpected keyword_end, expecting ')'
```