Update old saves

[gskinner]

Update old saves

[gskinner]

Saved patterns can be updated for 24hrs. This is to prevent issues with people changing patterns after others have favourited them or linked to them. We had a fair amount of discussion on the best approach to this (ex. I didn't like the JSFiddle approach of not allowing updates at all), but I'm definitely open to new ideas on how to approach it. It is mentioned in the video tutorial, and I just pushed a commit that includes it in the Help docs.

Feel free to reopen.

[tomByrer]

There are a few ways to allow editing:

• login procedure (I guess you're trying to keep this light.
• soft login like jsPerf uses; seems to allow a simple username + email address (& cookie?) without a full login. A bit extra 'security' to allow only the user update after X hours.
• token for edit eg: share: http://regexr.com/38mqi but you can edit with http://regexr.com/38mqi?edit=g3yq468k4lc9jdk2875z. Kinda hard to break, & if someone really wants to have others edit, they'll have to share the link/token.
• fork history You'll have to add obvious forking, then add a fork listing. Keeps the linked version stable, but semi-easier to find updates (can be a bit messy after 20 forks, but still helpful) ex:
  • 1 wide, but infinitely deep: http://jsperf.com/angular-vs-knockout-vs-ember/279
  • CodePen has a similar forking history; wide parent/children but only 1 deep in each direction: http://codepen.io/stringtheory/details/KlGxB#forks