Firebase Database: no such instance field error
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1
I am trying to retrieve data from the firebase database, but there is nothing. The debugger tells me that there is "No such instance field" in the databaseRefer and mFirebaseInstance variables. Can someone help me with this please?
private void setUser()
currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users");
Query a=userData.orderByChild("email").equalTo(currUserEmail);
a.addListenerForSingleValueEvent(new ValueEventListener()
@Override
public void onDataChange(DataSnapshot dataSnapshot)
curr_user = null;
for(DataSnapshot singleSnapshot : dataSnapshot.getChildren())
curr_user = singleSnapshot.getValue(User.class);
if (curr_user == null)
String currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users").child(currUserEmail);
userData.setValue(new User (currUserEmail,FirebaseAuth.getInstance().getCurrentUser().getUid()));
@Override
public void onCancelled(DatabaseError databaseError)
);
android firebase firebase-realtime-database edited Nov 15 '18 at 15:10
Dave
2,94081830
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
|
show 4 more comments
1
I am trying to retrieve data from the firebase database, but there is nothing. The debugger tells me that there is "No such instance field" in the databaseRefer and mFirebaseInstance variables. Can someone help me with this please?
private void setUser()
currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users");
Query a=userData.orderByChild("email").equalTo(currUserEmail);
a.addListenerForSingleValueEvent(new ValueEventListener()
@Override
public void onDataChange(DataSnapshot dataSnapshot)
curr_user = null;
for(DataSnapshot singleSnapshot : dataSnapshot.getChildren())
curr_user = singleSnapshot.getValue(User.class);
if (curr_user == null)
String currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users").child(currUserEmail);
userData.setValue(new User (currUserEmail,FirebaseAuth.getInstance().getCurrentUser().getUid()));
@Override
public void onCancelled(DatabaseError databaseError)
);
android firebase firebase-realtime-database edited Nov 15 '18 at 15:10
Dave
2,94081830
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
you are replacing '.' with ',' in email, are your email ids stored in similar format in DB?
– ManishPrajapati
Nov 15 '18 at 14:09
yes. they are in the same format.
– Guy Mizrachi
Nov 15 '18 at 14:13
Please indicate at which particular line of code that error occurs. Please responde with @AlexMamo
– Alex Mamo
Nov 15 '18 at 14:14
on this line: a.addListenerForSingleValueEvent(new ValueEventListener() @AlexMamo
– Guy Mizrachi
Nov 15 '18 at 14:15
It cannot be. Theafield is correctly instantiated. Please add a screenshot if your code to see it more clearly.
– Alex Mamo
Nov 15 '18 at 14:25
|
show 4 more comments
1
1
1
1
I am trying to retrieve data from the firebase database, but there is nothing. The debugger tells me that there is "No such instance field" in the databaseRefer and mFirebaseInstance variables. Can someone help me with this please?
private void setUser()
currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users");
Query a=userData.orderByChild("email").equalTo(currUserEmail);
a.addListenerForSingleValueEvent(new ValueEventListener()
@Override
public void onDataChange(DataSnapshot dataSnapshot)
curr_user = null;
for(DataSnapshot singleSnapshot : dataSnapshot.getChildren())
curr_user = singleSnapshot.getValue(User.class);
if (curr_user == null)
String currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users").child(currUserEmail);
userData.setValue(new User (currUserEmail,FirebaseAuth.getInstance().getCurrentUser().getUid()));
@Override
public void onCancelled(DatabaseError databaseError)
);
android firebase firebase-realtime-database edited Nov 15 '18 at 15:10
Dave
2,94081830
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
I am trying to retrieve data from the firebase database, but there is nothing. The debugger tells me that there is "No such instance field" in the databaseRefer and mFirebaseInstance variables. Can someone help me with this please?
private void setUser()
currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users");
Query a=userData.orderByChild("email").equalTo(currUserEmail);
a.addListenerForSingleValueEvent(new ValueEventListener()
@Override
public void onDataChange(DataSnapshot dataSnapshot)
curr_user = null;
for(DataSnapshot singleSnapshot : dataSnapshot.getChildren())
curr_user = singleSnapshot.getValue(User.class);
if (curr_user == null)
String currUserEmail = FirebaseAuth.getInstance().getCurrentUser().getEmail().replace(".",",");
DatabaseReference userData = FirebaseDatabase.getInstance().getReference("Users").child(currUserEmail);
userData.setValue(new User (currUserEmail,FirebaseAuth.getInstance().getCurrentUser().getUid()));
@Override
public void onCancelled(DatabaseError databaseError)
);
android firebase firebase-realtime-database android firebase firebase-realtime-database edited Nov 15 '18 at 15:10
Dave
2,94081830
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
edited Nov 15 '18 at 15:10
Dave
2,94081830
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
edited Nov 15 '18 at 15:10
Dave
2,94081830
edited Nov 15 '18 at 15:10
Dave
2,94081830
edited Nov 15 '18 at 15:10
Dave
2,94081830
2,94081830
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
asked Nov 15 '18 at 13:58
Guy MizrachiGuy Mizrachi
72
72
you are replacing '.' with ',' in email, are your email ids stored in similar format in DB?
– ManishPrajapati
Nov 15 '18 at 14:09
yes. they are in the same format.
– Guy Mizrachi
Nov 15 '18 at 14:13
Please indicate at which particular line of code that error occurs. Please responde with @AlexMamo
– Alex Mamo
Nov 15 '18 at 14:14
on this line: a.addListenerForSingleValueEvent(new ValueEventListener() @AlexMamo
– Guy Mizrachi
Nov 15 '18 at 14:15
It cannot be. Theafield is correctly instantiated. Please add a screenshot if your code to see it more clearly.
– Alex Mamo
Nov 15 '18 at 14:25
|
show 4 more comments
you are replacing '.' with ',' in email, are your email ids stored in similar format in DB?
– ManishPrajapati
Nov 15 '18 at 14:09
yes. they are in the same format.
– Guy Mizrachi
Nov 15 '18 at 14:13
Please indicate at which particular line of code that error occurs. Please responde with @AlexMamo
– Alex Mamo
Nov 15 '18 at 14:14
on this line: a.addListenerForSingleValueEvent(new ValueEventListener() @AlexMamo
– Guy Mizrachi
Nov 15 '18 at 14:15
It cannot be. Theafield is correctly instantiated. Please add a screenshot if your code to see it more clearly.
– Alex Mamo
Nov 15 '18 at 14:25
you are replacing '.' with ',' in email, are your email ids stored in similar format in DB?
– ManishPrajapati
Nov 15 '18 at 14:09
you are replacing '.' with ',' in email, are your email ids stored in similar format in DB?
– ManishPrajapati
Nov 15 '18 at 14:09
yes. they are in the same format.
– Guy Mizrachi
Nov 15 '18 at 14:13
yes. they are in the same format.
– Guy Mizrachi
Nov 15 '18 at 14:13
Please indicate at which particular line of code that error occurs. Please responde with @AlexMamo
– Alex Mamo
Nov 15 '18 at 14:14
Please indicate at which particular line of code that error occurs. Please responde with @AlexMamo
– Alex Mamo
Nov 15 '18 at 14:14
on this line: a.addListenerForSingleValueEvent(new ValueEventListener() @AlexMamo
– Guy Mizrachi
Nov 15 '18 at 14:15
on this line: a.addListenerForSingleValueEvent(new ValueEventListener() @AlexMamo
– Guy Mizrachi
Nov 15 '18 at 14:15
It cannot be. The
a field is correctly instantiated. Please add a screenshot if your code to see it more clearly.– Alex Mamo
Nov 15 '18 at 14:25
It cannot be. The
a field is correctly instantiated. Please add a screenshot if your code to see it more clearly.– Alex Mamo
Nov 15 '18 at 14:25
|
show 4 more comments
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you are replacing '.' with ',' in email, are your email ids stored in similar format in DB?
– ManishPrajapati
Nov 15 '18 at 14:09
yes. they are in the same format.
– Guy Mizrachi
Nov 15 '18 at 14:13
Please indicate at which particular line of code that error occurs. Please responde with @AlexMamo
– Alex Mamo
Nov 15 '18 at 14:14
on this line: a.addListenerForSingleValueEvent(new ValueEventListener() @AlexMamo
– Guy Mizrachi
Nov 15 '18 at 14:15
It cannot be. The
afield is correctly instantiated. Please add a screenshot if your code to see it more clearly.– Alex Mamo
Nov 15 '18 at 14:25