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
664811
add a comment |
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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
664811
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
664811
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
664811
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
664811
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
664811
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
664811
answered Nov 15 '18 at 5:35
Yogesh TandelYogesh Tandel
664811
664811
add a comment |
add a comment |
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Possible duplicate of Update child values in Firebase with Swift
– Rameez
Nov 15 '18 at 5:44