javascript - Firebase Web update() deletes all other child nodes -

hello getting weird behaviour here. try update 1 specific child node, when user clicks button. here code:

var updates2 = {}; var offer = {   minusaccandshare: 2, } updates2['/offerlight/' + keyreal] = offer; updates2['/offer/' + keyreal] = offer; return firebase.database().ref().update(updates2); 

everything working fine correct nodes updated while updating minusaccandshare else deleted

the structure like:

offer   jifdjsiavdas     minusaccandshare: -6     offername: "replacement"     offertext: "you have choice to..."     ... 

and becomes

offer   jifdjsiavdas     minusaccandshare: 2 

i used approach described in firebase guides multiple times , worked charm. there created completly new nodes new key there nothing deleted.

thanks :d

what happening in code folowing:

you writing entirely key thereby wiping off whole properties in dataset.

this

updates2['/offer/' + keyreal] = offer; 

wipes out whole data in particular key.

try instead:

firebase.database().ref('offer/' + keyreal).update({     minusaccandshare: 2,   }); 

this allows make sure change specified property in firebase dataset.

i hope helped