flutter loop through firebase node that consists of singlenodes and nodes with children
0
I have this piece of code:
routineExersiceIDsetter() async{
String routineId;
final response = await reference.child(_userId).once();
response.value.forEach((k,v){
if(v["name"] == "First Routine"){
currentRoutineId = k;
routineId = k;
}
});
final response2 = await reference.child(_userId).child(currentRoutineId).once();
response2.value.forEach((k, v){
if(v["name"] == "Day 1"){
currentSchemeId = k;
}
});
}
and this piece of a firebase database
{
"-LBNflaqFEb4DtZiYxnh" : {
"-LBWa99g4yCstUBkDGa7" : {
"name" : "Day 1"
},
"name" : "First Routine"
}
}
the first forEach line works but the second doesn't. Is there a way to make this work or do I need to change my firebase architecture?
json
firebase 
dart 
flutter edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
asked May 2 '18 at 16:51
merlijn mac gillavry
153
|
show 4 more comments
0
I have this piece of code:
routineExersiceIDsetter() async{
String routineId;
final response = await reference.child(_userId).once();
response.value.forEach((k,v){
if(v["name"] == "First Routine"){
currentRoutineId = k;
routineId = k;
}
});
final response2 = await reference.child(_userId).child(currentRoutineId).once();
response2.value.forEach((k, v){
if(v["name"] == "Day 1"){
currentSchemeId = k;
}
});
}
and this piece of a firebase database
{
"-LBNflaqFEb4DtZiYxnh" : {
"-LBWa99g4yCstUBkDGa7" : {
"name" : "Day 1"
},
"name" : "First Routine"
}
}
the first forEach line works but the second doesn't. Is there a way to make this work or do I need to change my firebase architecture?
json
firebase dart flutter edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
asked May 2 '18 at 16:51
merlijn mac gillavry
153
Don't you have to chain the two requests? Queries to Firebase are asynchronous so you should wait the first query resolves to have the value of currentRoutineId and only then you can execute the second query. I don't know how to chain that in dart, so I cannot help you with a full solution.
– Renaud Tarnec
May 2 '18 at 17:40
@RenaudTarnec I thought I already did that with the await request the perror i get is : type 'String' is not a subtype of type 'int' of 'index'
– merlijn mac gillavry
May 2 '18 at 17:42
I don't know dart but I have the feeling you are not linking the twoawaits. Are you surecurrentRoutineIdhas a correct value in the second 'await'? Can you check with console or log?
– Renaud Tarnec
May 2 '18 at 17:45
@RenaudTarnec from what I've seen it gets the correct routineid but it still gives an error in the second foreach
– merlijn mac gillavry
May 2 '18 at 17:53
What do you exactly want to do? Because it seems all the info is under one node
– Renaud Tarnec
May 2 '18 at 18:01
|
show 4 more comments
0
0
0
I have this piece of code:
routineExersiceIDsetter() async{
String routineId;
final response = await reference.child(_userId).once();
response.value.forEach((k,v){
if(v["name"] == "First Routine"){
currentRoutineId = k;
routineId = k;
}
});
final response2 = await reference.child(_userId).child(currentRoutineId).once();
response2.value.forEach((k, v){
if(v["name"] == "Day 1"){
currentSchemeId = k;
}
});
}
and this piece of a firebase database
{
"-LBNflaqFEb4DtZiYxnh" : {
"-LBWa99g4yCstUBkDGa7" : {
"name" : "Day 1"
},
"name" : "First Routine"
}
}
the first forEach line works but the second doesn't. Is there a way to make this work or do I need to change my firebase architecture?
json
firebase dart flutter edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
asked May 2 '18 at 16:51
merlijn mac gillavry
153
I have this piece of code:
routineExersiceIDsetter() async{
String routineId;
final response = await reference.child(_userId).once();
response.value.forEach((k,v){
if(v["name"] == "First Routine"){
currentRoutineId = k;
routineId = k;
}
});
final response2 = await reference.child(_userId).child(currentRoutineId).once();
response2.value.forEach((k, v){
if(v["name"] == "Day 1"){
currentSchemeId = k;
}
});
}
and this piece of a firebase database
{
"-LBNflaqFEb4DtZiYxnh" : {
"-LBWa99g4yCstUBkDGa7" : {
"name" : "Day 1"
},
"name" : "First Routine"
}
}
the first forEach line works but the second doesn't. Is there a way to make this work or do I need to change my firebase architecture?
json
firebase dart flutter json
firebase dart flutter edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
asked May 2 '18 at 16:51
merlijn mac gillavry
153
edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
asked May 2 '18 at 16:51
merlijn mac gillavry
153
edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
edited Nov 12 '18 at 4:54
Cœur
17.4k9103145
17.4k9103145
asked May 2 '18 at 16:51
merlijn mac gillavry
153
asked May 2 '18 at 16:51
merlijn mac gillavry
153
asked May 2 '18 at 16:51
merlijn mac gillavry
153
153
Don't you have to chain the two requests? Queries to Firebase are asynchronous so you should wait the first query resolves to have the value of currentRoutineId and only then you can execute the second query. I don't know how to chain that in dart, so I cannot help you with a full solution.
– Renaud Tarnec
May 2 '18 at 17:40
@RenaudTarnec I thought I already did that with the await request the perror i get is : type 'String' is not a subtype of type 'int' of 'index'
– merlijn mac gillavry
May 2 '18 at 17:42
I don't know dart but I have the feeling you are not linking the twoawaits. Are you surecurrentRoutineIdhas a correct value in the second 'await'? Can you check with console or log?
– Renaud Tarnec
May 2 '18 at 17:45
@RenaudTarnec from what I've seen it gets the correct routineid but it still gives an error in the second foreach
– merlijn mac gillavry
May 2 '18 at 17:53
What do you exactly want to do? Because it seems all the info is under one node
– Renaud Tarnec
May 2 '18 at 18:01
|
show 4 more comments
Don't you have to chain the two requests? Queries to Firebase are asynchronous so you should wait the first query resolves to have the value of currentRoutineId and only then you can execute the second query. I don't know how to chain that in dart, so I cannot help you with a full solution.
– Renaud Tarnec
May 2 '18 at 17:40
@RenaudTarnec I thought I already did that with the await request the perror i get is : type 'String' is not a subtype of type 'int' of 'index'
– merlijn mac gillavry
May 2 '18 at 17:42
I don't know dart but I have the feeling you are not linking the twoawaits. Are you surecurrentRoutineIdhas a correct value in the second 'await'? Can you check with console or log?
– Renaud Tarnec
May 2 '18 at 17:45
@RenaudTarnec from what I've seen it gets the correct routineid but it still gives an error in the second foreach
– merlijn mac gillavry
May 2 '18 at 17:53
What do you exactly want to do? Because it seems all the info is under one node
– Renaud Tarnec
May 2 '18 at 18:01
Don't you have to chain the two requests? Queries to Firebase are asynchronous so you should wait the first query resolves to have the value of currentRoutineId and only then you can execute the second query. I don't know how to chain that in dart, so I cannot help you with a full solution.
– Renaud Tarnec
May 2 '18 at 17:40
Don't you have to chain the two requests? Queries to Firebase are asynchronous so you should wait the first query resolves to have the value of currentRoutineId and only then you can execute the second query. I don't know how to chain that in dart, so I cannot help you with a full solution.
– Renaud Tarnec
May 2 '18 at 17:40
@RenaudTarnec I thought I already did that with the await request the perror i get is : type 'String' is not a subtype of type 'int' of 'index'
– merlijn mac gillavry
May 2 '18 at 17:42
@RenaudTarnec I thought I already did that with the await request the perror i get is : type 'String' is not a subtype of type 'int' of 'index'
– merlijn mac gillavry
May 2 '18 at 17:42
I don't know dart but I have the feeling you are not linking the two
awaits. Are you sure currentRoutineId has a correct value in the second 'await'? Can you check with console or log?– Renaud Tarnec
May 2 '18 at 17:45
I don't know dart but I have the feeling you are not linking the two
awaits. Are you sure currentRoutineId has a correct value in the second 'await'? Can you check with console or log?– Renaud Tarnec
May 2 '18 at 17:45
@RenaudTarnec from what I've seen it gets the correct routineid but it still gives an error in the second foreach
– merlijn mac gillavry
May 2 '18 at 17:53
@RenaudTarnec from what I've seen it gets the correct routineid but it still gives an error in the second foreach
– merlijn mac gillavry
May 2 '18 at 17:53
What do you exactly want to do? Because it seems all the info is under one node
– Renaud Tarnec
May 2 '18 at 18:01
What do you exactly want to do? Because it seems all the info is under one node
– Renaud Tarnec
May 2 '18 at 18:01
|
show 4 more comments
1 Answer
1
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oldest
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0
I realised is should have wrapped the second ifstatement in another ifstatement:
if(k!="name"){
if(v["name"] == "Day 1"){
currentSchemeId =k;
}
}
answered May 2 '18 at 21:45
merlijn mac gillavry
153
add a comment |
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1 Answer
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1 Answer
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oldest
votes
0
I realised is should have wrapped the second ifstatement in another ifstatement:
if(k!="name"){
if(v["name"] == "Day 1"){
currentSchemeId =k;
}
}
answered May 2 '18 at 21:45
merlijn mac gillavry
153
add a comment |
0
I realised is should have wrapped the second ifstatement in another ifstatement:
if(k!="name"){
if(v["name"] == "Day 1"){
currentSchemeId =k;
}
}
answered May 2 '18 at 21:45
merlijn mac gillavry
153
add a comment |
0
0
0
I realised is should have wrapped the second ifstatement in another ifstatement:
if(k!="name"){
if(v["name"] == "Day 1"){
currentSchemeId =k;
}
}
answered May 2 '18 at 21:45
merlijn mac gillavry
153
I realised is should have wrapped the second ifstatement in another ifstatement:
if(k!="name"){
if(v["name"] == "Day 1"){
currentSchemeId =k;
}
}
answered May 2 '18 at 21:45
merlijn mac gillavry
153
answered May 2 '18 at 21:45
merlijn mac gillavry
153
answered May 2 '18 at 21:45
merlijn mac gillavry
153
answered May 2 '18 at 21:45
merlijn mac gillavry
153
153
add a comment |
add a comment |
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Don't you have to chain the two requests? Queries to Firebase are asynchronous so you should wait the first query resolves to have the value of currentRoutineId and only then you can execute the second query. I don't know how to chain that in dart, so I cannot help you with a full solution.
– Renaud Tarnec
May 2 '18 at 17:40
@RenaudTarnec I thought I already did that with the await request the perror i get is : type 'String' is not a subtype of type 'int' of 'index'
– merlijn mac gillavry
May 2 '18 at 17:42
I don't know dart but I have the feeling you are not linking the two
awaits. Are you surecurrentRoutineIdhas a correct value in the second 'await'? Can you check with console or log?– Renaud Tarnec
May 2 '18 at 17:45
@RenaudTarnec from what I've seen it gets the correct routineid but it still gives an error in the second foreach
– merlijn mac gillavry
May 2 '18 at 17:53
What do you exactly want to do? Because it seems all the info is under one node
– Renaud Tarnec
May 2 '18 at 18:01