ios - NSPredicate & Parse Have it return results matching current user, but also username strings, from an array -


basically, working on chat app. in order retrieve "room" objects parse, using query this:

func loaddata(){      rooms = [pfobject]()     users = [pfuser]()      self.tableview.reloaddata()      let pred = nspredicate(format: "user1 = %@ or user2 = %@", pfuser.currentuser()!, pfuser.currentuser()!)     let roomquery = pfquery(classname: "room", predicate: pred)      roomquery.orderbydescending("lastupdate")     roomquery.includekey("user1")     roomquery.includekey("user2")      roomquery.findobjectsinbackgroundwithblock { (results, error) -> void in         if error == nil {              self.rooms = results as! [pfobject]              room in self.rooms {                 let user1 = room.objectforkey("user1") as! pfuser                 let user2 = room["user2"] as! pfuser                  if user1.objectid != pfuser.currentuser()!.objectid {                     self.users.append(user1)                 }                  if user2.objectid != pfuser.currentuser()!.objectid {                     self.users.append(user2)                 }             }              self.tableview.reloaddata()         }     }  }

now, working fine when comes find rooms current user member of. want somewhere in app, have array of usernames(string type).

so question is: how use above nspredicate, in such way results/pfobject returned assured match of usernames in array usernames of user1 or user2.

(basically, idea that, array represents contacts , if no longer 1 should no longer see room)

please pretty please? :<

you should create array of allowed users, including current user , placeholder objects other user ids (see objectwithoutdatawithclassname:objectid:). use array in query in instead of testing direct equality (=).


Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more