Sorting not working correctly

[ThomasKranitsas]

Sorting works only on the visible challenges and not in all available challenges.
As a result when sorting challenges with Prize high to low I get this http://take.ms/d1p3s even if there are many challenges with prize > $0

fyi @ajefts

[ajefts]

@tladendo Can you get this fixes along with the v3 migration?

[tladendo]

@ajefts do you mean that sorting should apply to challenges that haven't been fetched from the API yet? I think we're going to just have to run a challenge to move more filtering to the backend...should i get that going?

[ajefts]

Yes. For example, if there are 30 challenges open for registration and I sort for most recent first, then it should show the post recent out of the entire 30 challenges even if the UI only supports showing 10 total items...

Yes, let's start using API filtering more when appropriate...