ios - FIrebase 3 query to return value that matches child key/value -


i've upgraded ios application use firebase 3 , query working in firebase 2 no longer works in firebase 3.

the old query written follow. 

firebaseuser.queryorderedbychild("displayname").queryequaltovalue(frienddisplayname)       .observesingleeventoftype(.value, withblock: { snapshot in }

where frienddisplayname have been 'someguy1' , have returned object someguy1 part of.

now however, same query returns nothing on firebase 3. feeling because firebase 3 isn't looking inside child objects themselves, it's looking displayname actual child itself. if update query example returns expected.

    database.child("0hftq3cttfwnfvg0dmea1raypow2").queryequaltovalue("someguy1", childkey: "displayname").observesingleeventoftype(.value, withblock: { snapshot in }

but won't work solution me because don't want have parse through child nodes , search through them etc.. way see 1 solution if firebase had 'catch all' specify child like

database.child(*****).etc

where **** can value, doesn't need specified in actual query.

does know how resolve issue? i've attached firebase json layout below.

thanks!

 {       "users" : {         "0hftq3cttfwnfvg0dmea1raypow2" : {           "displayname" : "someguy1",           "pushoptions" : 1,           "pushtoggle" : false         },         "9batnlbnnoxmovk4lhtqfmngjjy1" : {           "displayname" : "someguy2",           "pushoptions" : 0,           "pushtoggle" : true         }       }     }

i found out despite there being no documentation on it, displayname acts keyword - user object provided firebase offers displayname property, unlike other databases, can't use displayname in other nodes or children - can, it's not searchable. in end changing displayname property username solved problems.

hope helps else.


-

Comments

Post a Comment

Popular posts from this blog

scala - 'wrong top statement declaration' when using slick in IntelliJ -

Image
i'm porting project scala 2.9 2.10, therefore have use slick instead of scalaquery. i'm using slick 2.1.0 since supports ms access. according this tutorial , upgrade guide changed robs object class , added val robs : why error message wrong top statement declaration , how rid of it? edit: i'm new scala... according this question seems can't put val outside of methods or classes, right? code above directly in packge. right approach slick then? should move code in class or trait? according this changed val robs = tablequery[robs] to object robs extends tablequery(new robs(_)) {} . no warnings or errors anymore. :)
Read more

c# - DevExpress.Wpf.Grid.InfiniteGridSizeException was unhandled -

Image
when using devexpress, see error: devexpress.wpf.grid.infinitegridsizeexception unhandled message="by default, infinite grid height not allowed since grid rows rendered , hence grid work slowly. fix issue, should place grid container give finite height grid, or should manually specify grid's height or maxheight. note can avoid exception setting gridcontrol.allowinfinitegridsize static property true, in case grid run slowly." the problem dxgrid has infinite height. to fix, set height non-infinite. snoop absolutely invaluable this: if "height" xaml element infinite (i.e. 0 or nan ), can set using one of following: option 1: height="{binding path=actualheight, relativesource={relativesource mode=findancestor, ancestortype=uielement}}" option 2: verticalalignment="stretch" option 3: height="auto" hint: use verticalalignment="stretch" if child of grid <rowdefinition height=
Read more

PySide and Qt Properties: Connecting signals from Python to QML -

i trying run simple pyside appliccation design made in qml. call function in qml python in separated thread. i have following qml view: import qt 4.7 rectangle { visible: true width: 100; height: 100 color: "lightgrey" text { id: datestr objectname: "datestr" x: 10 y: 10 text: "init text" font.pixelsize: 12 function updatedata(text) { datestr.text = qstr(text) console.log("you said: " + text) } } } here application: some imports.... #!/usr/bin/python import sys import time pyside import qtdeclarative, qtcore pyside.qtgui import qapplication pyside.qtdeclarative import qdeclarativeview the qthread worker.... #worker thread class worker(qtcore.qthread): updateprogress = qtcore.signal(int) def __init__(self, child): qtcore.qthread.__init__(self) self.child = child def run(self):
Read more