Mixing
Swift firebase query nested child nodes
I have the following set up in firebase:
I then query the firebase:
func getUserInfo(){
var tempUsers = [user]()
// query for the data
let itemRef = Database.database().reference(fromURL: "[url]").child("users")
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let sport = dict["Sport"] as? String,
let username = dict["username"] as? String{
let user = user(sport: sport, username: username)
tempUsers.append(user)
}
}
self.usersArray = tempUsers
}){ (error) in
print("the error is: (error.localizedDescription)")
}
}
Users:
class user {
var username: String
var sport: String
var teamInfo: [teamInfo]
init(username: String, sport: String, teamInfo: [teamInfo])
{
self.username = username
self.sport = sport
self.teamInfo = [teamInfo]
}
}
struct teamInfo {
var AwayTeam: String
var HomeTeam = String
var Jersey = Int
}
I would like to know how would I be able to get the Team information within my query and then be able to add it to the instance of User, I have tried to make "Team" into a dict but this does not give me the intended result.
swift firebase firebase-realtime-database
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
asked Jan 2 at 19:12
AceAce
2381620
add a comment |
I have the following set up in firebase:
I then query the firebase:
func getUserInfo(){
var tempUsers = [user]()
// query for the data
let itemRef = Database.database().reference(fromURL: "[url]").child("users")
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let sport = dict["Sport"] as? String,
let username = dict["username"] as? String{
let user = user(sport: sport, username: username)
tempUsers.append(user)
}
}
self.usersArray = tempUsers
}){ (error) in
print("the error is: (error.localizedDescription)")
}
}
Users:
class user {
var username: String
var sport: String
var teamInfo: [teamInfo]
init(username: String, sport: String, teamInfo: [teamInfo])
{
self.username = username
self.sport = sport
self.teamInfo = [teamInfo]
}
}
struct teamInfo {
var AwayTeam: String
var HomeTeam = String
var Jersey = Int
}
I would like to know how would I be able to get the Team information within my query and then be able to add it to the instance of User, I have tried to make "Team" into a dict but this does not give me the intended result.
swift firebase firebase-realtime-database
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
asked Jan 2 at 19:12
AceAce
2381620
add a comment |
I have the following set up in firebase:
I then query the firebase:
func getUserInfo(){
var tempUsers = [user]()
// query for the data
let itemRef = Database.database().reference(fromURL: "[url]").child("users")
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let sport = dict["Sport"] as? String,
let username = dict["username"] as? String{
let user = user(sport: sport, username: username)
tempUsers.append(user)
}
}
self.usersArray = tempUsers
}){ (error) in
print("the error is: (error.localizedDescription)")
}
}
Users:
class user {
var username: String
var sport: String
var teamInfo: [teamInfo]
init(username: String, sport: String, teamInfo: [teamInfo])
{
self.username = username
self.sport = sport
self.teamInfo = [teamInfo]
}
}
struct teamInfo {
var AwayTeam: String
var HomeTeam = String
var Jersey = Int
}
I would like to know how would I be able to get the Team information within my query and then be able to add it to the instance of User, I have tried to make "Team" into a dict but this does not give me the intended result.
swift firebase firebase-realtime-database
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
asked Jan 2 at 19:12
AceAce
2381620
I have the following set up in firebase:
I then query the firebase:
func getUserInfo(){
var tempUsers = [user]()
// query for the data
let itemRef = Database.database().reference(fromURL: "[url]").child("users")
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let sport = dict["Sport"] as? String,
let username = dict["username"] as? String{
let user = user(sport: sport, username: username)
tempUsers.append(user)
}
}
self.usersArray = tempUsers
}){ (error) in
print("the error is: (error.localizedDescription)")
}
}
Users:
class user {
var username: String
var sport: String
var teamInfo: [teamInfo]
init(username: String, sport: String, teamInfo: [teamInfo])
{
self.username = username
self.sport = sport
self.teamInfo = [teamInfo]
}
}
struct teamInfo {
var AwayTeam: String
var HomeTeam = String
var Jersey = Int
}
I would like to know how would I be able to get the Team information within my query and then be able to add it to the instance of User, I have tried to make "Team" into a dict but this does not give me the intended result.
swift firebase firebase-realtime-database
swift firebase firebase-realtime-database
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
asked Jan 2 at 19:12
AceAce
2381620
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
asked Jan 2 at 19:12
AceAce
2381620
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
edited Jan 2 at 19:15
Frank van Puffelen
244k29387415
244k29387415
asked Jan 2 at 19:12
AceAce
2381620
asked Jan 2 at 19:12
AceAce
2381620
asked Jan 2 at 19:12
AceAce
2381620
2381620
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
First things first: you have an inconsistency in username. Your JSON spells it Username with an uppercase U, while the code uses username with a lowercase u. Since Firebase is case-sensitive, your code will right now never get the correct value.
Aside from that, you can get the values from the nested children by using DataSnapshot.childSnapshot(forPath:).
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let team = childSnapshot.childSnapshot(forPath: "Team/AwayTeam").value as? String;
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
I'm not sure what you mean there, but mostly includedTeam/AwayTeamas an example. If it doesn't exist,teamwill benil. And you can read the other properties in a similar way, e.g.Team/HomeTeam.
– Frank van Puffelen
Jan 2 at 19:39
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
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
First things first: you have an inconsistency in username. Your JSON spells it Username with an uppercase U, while the code uses username with a lowercase u. Since Firebase is case-sensitive, your code will right now never get the correct value.
Aside from that, you can get the values from the nested children by using DataSnapshot.childSnapshot(forPath:).
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let team = childSnapshot.childSnapshot(forPath: "Team/AwayTeam").value as? String;
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
I'm not sure what you mean there, but mostly includedTeam/AwayTeamas an example. If it doesn't exist,teamwill benil. And you can read the other properties in a similar way, e.g.Team/HomeTeam.
– Frank van Puffelen
Jan 2 at 19:39
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
add a comment |
First things first: you have an inconsistency in username. Your JSON spells it Username with an uppercase U, while the code uses username with a lowercase u. Since Firebase is case-sensitive, your code will right now never get the correct value.
Aside from that, you can get the values from the nested children by using DataSnapshot.childSnapshot(forPath:).
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let team = childSnapshot.childSnapshot(forPath: "Team/AwayTeam").value as? String;
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
I'm not sure what you mean there, but mostly includedTeam/AwayTeamas an example. If it doesn't exist,teamwill benil. And you can read the other properties in a similar way, e.g.Team/HomeTeam.
– Frank van Puffelen
Jan 2 at 19:39
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
add a comment |
First things first: you have an inconsistency in username. Your JSON spells it Username with an uppercase U, while the code uses username with a lowercase u. Since Firebase is case-sensitive, your code will right now never get the correct value.
Aside from that, you can get the values from the nested children by using DataSnapshot.childSnapshot(forPath:).
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let team = childSnapshot.childSnapshot(forPath: "Team/AwayTeam").value as? String;
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
First things first: you have an inconsistency in username. Your JSON spells it Username with an uppercase U, while the code uses username with a lowercase u. Since Firebase is case-sensitive, your code will right now never get the correct value.
Aside from that, you can get the values from the nested children by using DataSnapshot.childSnapshot(forPath:).
itemRef.observe(.value, with: { snapshot in
for child in snapshot.children {
if let childSnapshot = child as? DataSnapshot,
let dict = childSnapshot.value as? [String: Any],
let team = childSnapshot.childSnapshot(forPath: "Team/AwayTeam").value as? String;
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
answered Jan 2 at 19:18
Frank van PuffelenFrank van Puffelen
244k29387415
244k29387415
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
I'm not sure what you mean there, but mostly includedTeam/AwayTeamas an example. If it doesn't exist,teamwill benil. And you can read the other properties in a similar way, e.g.Team/HomeTeam.
– Frank van Puffelen
Jan 2 at 19:39
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
add a comment |
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
I'm not sure what you mean there, but mostly includedTeam/AwayTeamas an example. If it doesn't exist,teamwill benil. And you can read the other properties in a similar way, e.g.Team/HomeTeam.
– Frank van Puffelen
Jan 2 at 19:39
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
would there be a way without including "Team/AwayTeam" as it is possible not every use has an AwayTeam there for it might not be in the data
– Ace
Jan 2 at 19:24
I'm not sure what you mean there, but mostly included
Team/AwayTeam as an example. If it doesn't exist, team will be nil. And you can read the other properties in a similar way, e.g. Team/HomeTeam.– Frank van Puffelen
Jan 2 at 19:39
I'm not sure what you mean there, but mostly included
Team/AwayTeam as an example. If it doesn't exist, team will be nil. And you can read the other properties in a similar way, e.g. Team/HomeTeam.– Frank van Puffelen
Jan 2 at 19:39
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
oh ok thank you for the clarification
– Ace
Jan 2 at 19:42
add a comment |
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