ios - How to separate functions accessing Parse.com into a separate class? -


i have function (using function example only, question parse accesses) below need call several different uiviewcontroller classes.

i hoping put function in separate class can instantiate in multiple uiviewcontroller classes , call function.

since saveinbackgroundwithblock asynchronous process, how can return scoreagain object uiviewcontroller class.

is possible? 

var query = pfquery(classname: "gamescore") query.getobjectinbackgroundwithid(gamescore.objectid) {     (scoreagain: pfobject!, error: nserror!) -> void in     if !error {        nslog("%@", scoreagain.objectforkey("playername") nsstring)     } else {     nslog("%@", error)     } }

the goal here separate cloud end accesses separate classes because if change backend parse.com else in future, dont have touch uiviewcontroller classes change helper classes.


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