Updating a Realtime Database object in Firebase iOS SDK
I have a database that looks like this:
I want to update let's say the second user, the one with uid 5p3XT8TVFbVYNmFt0Kbu1ticaUT2, and change its name to "James". Using the iOS SDK I can do:
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let databaseQuery = ref.child("users").queryOrdered(byChild: "uid").queryEqual(toValue: id)
In order to query the database so it will filter out all users apart from the one I want to change. But this query will now point to a filtered list of users which contains only the user I want to update, not to the user itself. So if I try
databaseQuery.ref.updateChildValues(...)
The database will look like this:
I can't understand from the api reference how to get straight to the queried child. How do I do that?
ios swift firebase firebase-realtime-database
asked Nov 13 '18 at 15:40
LiranTLiranT
313
add a comment |
I have a database that looks like this:
I want to update let's say the second user, the one with uid 5p3XT8TVFbVYNmFt0Kbu1ticaUT2, and change its name to "James". Using the iOS SDK I can do:
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let databaseQuery = ref.child("users").queryOrdered(byChild: "uid").queryEqual(toValue: id)
In order to query the database so it will filter out all users apart from the one I want to change. But this query will now point to a filtered list of users which contains only the user I want to update, not to the user itself. So if I try
databaseQuery.ref.updateChildValues(...)
The database will look like this:
I can't understand from the api reference how to get straight to the queried child. How do I do that?
ios swift firebase firebase-realtime-database
asked Nov 13 '18 at 15:40
LiranTLiranT
313
Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44
add a comment |
I have a database that looks like this:
I want to update let's say the second user, the one with uid 5p3XT8TVFbVYNmFt0Kbu1ticaUT2, and change its name to "James". Using the iOS SDK I can do:
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let databaseQuery = ref.child("users").queryOrdered(byChild: "uid").queryEqual(toValue: id)
In order to query the database so it will filter out all users apart from the one I want to change. But this query will now point to a filtered list of users which contains only the user I want to update, not to the user itself. So if I try
databaseQuery.ref.updateChildValues(...)
The database will look like this:
I can't understand from the api reference how to get straight to the queried child. How do I do that?
ios swift firebase firebase-realtime-database
asked Nov 13 '18 at 15:40
LiranTLiranT
313
I have a database that looks like this:
I want to update let's say the second user, the one with uid 5p3XT8TVFbVYNmFt0Kbu1ticaUT2, and change its name to "James". Using the iOS SDK I can do:
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let databaseQuery = ref.child("users").queryOrdered(byChild: "uid").queryEqual(toValue: id)
In order to query the database so it will filter out all users apart from the one I want to change. But this query will now point to a filtered list of users which contains only the user I want to update, not to the user itself. So if I try
databaseQuery.ref.updateChildValues(...)
The database will look like this:
I can't understand from the api reference how to get straight to the queried child. How do I do that?
ios swift firebase firebase-realtime-database
ios swift firebase firebase-realtime-database
asked Nov 13 '18 at 15:40
LiranTLiranT
313
asked Nov 13 '18 at 15:40
LiranTLiranT
313
asked Nov 13 '18 at 15:40
LiranTLiranT
313
asked Nov 13 '18 at 15:40
LiranTLiranT
313
asked Nov 13 '18 at 15:40
LiranTLiranT
313
313
Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44
add a comment |
Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44
Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44
Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44
add a comment |
1 Answer
1
active
oldest
votes
You can set value to be changed in the values dictionary
func updateValues()
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let values = ["name": txf_Name.text ?? "", “email”: txf_email.text ?? "", “role”: txf_Role.text ?? ""]
ref.child(id).updateChildValues(values, withCompletionBlock: (error, ref) in
if(error != nil)
print(error?.localizedDescription ?? "")
return
print("Values Updated")
)
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53284517%2fupdating-a-realtime-database-object-in-firebase-ios-sdk%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can set value to be changed in the values dictionary
func updateValues()
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let values = ["name": txf_Name.text ?? "", “email”: txf_email.text ?? "", “role”: txf_Role.text ?? ""]
ref.child(id).updateChildValues(values, withCompletionBlock: (error, ref) in
if(error != nil)
print(error?.localizedDescription ?? "")
return
print("Values Updated")
)
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
add a comment |
You can set value to be changed in the values dictionary
func updateValues()
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let values = ["name": txf_Name.text ?? "", “email”: txf_email.text ?? "", “role”: txf_Role.text ?? ""]
ref.child(id).updateChildValues(values, withCompletionBlock: (error, ref) in
if(error != nil)
print(error?.localizedDescription ?? "")
return
print("Values Updated")
)
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
add a comment |
You can set value to be changed in the values dictionary
func updateValues()
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let values = ["name": txf_Name.text ?? "", “email”: txf_email.text ?? "", “role”: txf_Role.text ?? ""]
ref.child(id).updateChildValues(values, withCompletionBlock: (error, ref) in
if(error != nil)
print(error?.localizedDescription ?? "")
return
print("Values Updated")
)
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
You can set value to be changed in the values dictionary
func updateValues()
let ref = Database.database().reference()
let id = 5p3XT8TVFbVYNmFt0Kbu1ticaUT2
let values = ["name": txf_Name.text ?? "", “email”: txf_email.text ?? "", “role”: txf_Role.text ?? ""]
ref.child(id).updateChildValues(values, withCompletionBlock: (error, ref) in
if(error != nil)
print(error?.localizedDescription ?? "")
return
print("Values Updated")
)
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
7581811
7581811
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53284517%2fupdating-a-realtime-database-object-in-firebase-ios-sdk%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44