Mixing
When i am removing a data from firebase using react js it deletes the data and one null value is entered. How...
-1
While deleting the data from firebase database null value is getting inserted into firebase.
deleteImag = e => {
const val = e.target.value;
var x = '';
const rootRef = fire.database().ref();
const fooRef = rootRef.child(`assets/${this.state.id}`);
fooRef.on("value", snap => {
const foo = snap.val();
if (foo !== null) {
Object.keys(foo).forEach(key => {
if (foo[key].id = val) {
console.log(key);
x = key;
// The Object is foo[key]
var res = null;
console.log(foo[key].id);
fire.database().ref(`assets/${this.state.id}/${x}`).remove();
}
});
}
});
};
JSON:
{
"hero" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
},
"id" : "urn:microsense:cms:asset:80c71fdb-0d32-41de-8170-8e35409b8e63",
"purpose" : "activity",
"thumbnail" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
}
}, null, null, {
enter image description here
javascript reactjs firebase firebase-realtime-database
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
|
show 4 more comments
-1
While deleting the data from firebase database null value is getting inserted into firebase.
deleteImag = e => {
const val = e.target.value;
var x = '';
const rootRef = fire.database().ref();
const fooRef = rootRef.child(`assets/${this.state.id}`);
fooRef.on("value", snap => {
const foo = snap.val();
if (foo !== null) {
Object.keys(foo).forEach(key => {
if (foo[key].id = val) {
console.log(key);
x = key;
// The Object is foo[key]
var res = null;
console.log(foo[key].id);
fire.database().ref(`assets/${this.state.id}/${x}`).remove();
}
});
}
});
};
JSON:
{
"hero" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
},
"id" : "urn:microsense:cms:asset:80c71fdb-0d32-41de-8170-8e35409b8e63",
"purpose" : "activity",
"thumbnail" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
}
}, null, null, {
enter image description here
javascript reactjs firebase firebase-realtime-database
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
I don't see anynullvalue in your database. Can you point out what specific value is being written when you callremove()?
– Frank van Puffelen
Jan 2 at 15:21
When I call remove() null is getting inserted at the removed node place. It's not reflected here once I export the data in json from Firebase there I find it.
– Imteyaz Ashraf
Jan 2 at 18:21
In that case please replace the screenshot with the actual JSON that shows the problematic value that you're asking about.
– Frank van Puffelen
Jan 2 at 19:05
@FrankvanPuffelen sir i have attached the json image please help me out.
– Imteyaz Ashraf
Jan 2 at 21:50
My initial feeling is that these elements are in an array, in which case you're seeing Firebase's handling of arrays. Can you replace the screenshot with the actual JSON as text, and make sure the containing element is also in there? You can get this by clicking the "Export JSON" link in the overflow menu (⠇) on your Firebase Database console.
– Frank van Puffelen
Jan 3 at 0:00
|
show 4 more comments
-1
-1
-1
1
While deleting the data from firebase database null value is getting inserted into firebase.
deleteImag = e => {
const val = e.target.value;
var x = '';
const rootRef = fire.database().ref();
const fooRef = rootRef.child(`assets/${this.state.id}`);
fooRef.on("value", snap => {
const foo = snap.val();
if (foo !== null) {
Object.keys(foo).forEach(key => {
if (foo[key].id = val) {
console.log(key);
x = key;
// The Object is foo[key]
var res = null;
console.log(foo[key].id);
fire.database().ref(`assets/${this.state.id}/${x}`).remove();
}
});
}
});
};
JSON:
{
"hero" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
},
"id" : "urn:microsense:cms:asset:80c71fdb-0d32-41de-8170-8e35409b8e63",
"purpose" : "activity",
"thumbnail" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
}
}, null, null, {
enter image description here
javascript reactjs firebase firebase-realtime-database
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
While deleting the data from firebase database null value is getting inserted into firebase.
deleteImag = e => {
const val = e.target.value;
var x = '';
const rootRef = fire.database().ref();
const fooRef = rootRef.child(`assets/${this.state.id}`);
fooRef.on("value", snap => {
const foo = snap.val();
if (foo !== null) {
Object.keys(foo).forEach(key => {
if (foo[key].id = val) {
console.log(key);
x = key;
// The Object is foo[key]
var res = null;
console.log(foo[key].id);
fire.database().ref(`assets/${this.state.id}/${x}`).remove();
}
});
}
});
};
JSON:
{
"hero" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
},
"id" : "urn:microsense:cms:asset:80c71fdb-0d32-41de-8170-8e35409b8e63",
"purpose" : "activity",
"thumbnail" : {
"img" : "http://aws-website-testing-slv0n.s3-website-us-east-1.amazonaws.com/images/CornHole3.jpg"
}
}, null, null, {
enter image description here
javascript reactjs firebase firebase-realtime-database
javascript reactjs firebase firebase-realtime-database
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
edited Jan 3 at 13:55
Frank van Puffelen
243k29387414
243k29387414
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
asked Jan 2 at 11:25
Imteyaz AshrafImteyaz Ashraf
13
13
I don't see anynullvalue in your database. Can you point out what specific value is being written when you callremove()?
– Frank van Puffelen
Jan 2 at 15:21
When I call remove() null is getting inserted at the removed node place. It's not reflected here once I export the data in json from Firebase there I find it.
– Imteyaz Ashraf
Jan 2 at 18:21
In that case please replace the screenshot with the actual JSON that shows the problematic value that you're asking about.
– Frank van Puffelen
Jan 2 at 19:05
@FrankvanPuffelen sir i have attached the json image please help me out.
– Imteyaz Ashraf
Jan 2 at 21:50
My initial feeling is that these elements are in an array, in which case you're seeing Firebase's handling of arrays. Can you replace the screenshot with the actual JSON as text, and make sure the containing element is also in there? You can get this by clicking the "Export JSON" link in the overflow menu (⠇) on your Firebase Database console.
– Frank van Puffelen
Jan 3 at 0:00
|
show 4 more comments
I don't see anynullvalue in your database. Can you point out what specific value is being written when you callremove()?
– Frank van Puffelen
Jan 2 at 15:21
When I call remove() null is getting inserted at the removed node place. It's not reflected here once I export the data in json from Firebase there I find it.
– Imteyaz Ashraf
Jan 2 at 18:21
In that case please replace the screenshot with the actual JSON that shows the problematic value that you're asking about.
– Frank van Puffelen
Jan 2 at 19:05
@FrankvanPuffelen sir i have attached the json image please help me out.
– Imteyaz Ashraf
Jan 2 at 21:50
My initial feeling is that these elements are in an array, in which case you're seeing Firebase's handling of arrays. Can you replace the screenshot with the actual JSON as text, and make sure the containing element is also in there? You can get this by clicking the "Export JSON" link in the overflow menu (⠇) on your Firebase Database console.
– Frank van Puffelen
Jan 3 at 0:00
I don't see any
null value in your database. Can you point out what specific value is being written when you call remove()?– Frank van Puffelen
Jan 2 at 15:21
I don't see any
null value in your database. Can you point out what specific value is being written when you call remove()?– Frank van Puffelen
Jan 2 at 15:21
When I call remove() null is getting inserted at the removed node place. It's not reflected here once I export the data in json from Firebase there I find it.
– Imteyaz Ashraf
Jan 2 at 18:21
When I call remove() null is getting inserted at the removed node place. It's not reflected here once I export the data in json from Firebase there I find it.
– Imteyaz Ashraf
Jan 2 at 18:21
In that case please replace the screenshot with the actual JSON that shows the problematic value that you're asking about.
– Frank van Puffelen
Jan 2 at 19:05
In that case please replace the screenshot with the actual JSON that shows the problematic value that you're asking about.
– Frank van Puffelen
Jan 2 at 19:05
@FrankvanPuffelen sir i have attached the json image please help me out.
– Imteyaz Ashraf
Jan 2 at 21:50
@FrankvanPuffelen sir i have attached the json image please help me out.
– Imteyaz Ashraf
Jan 2 at 21:50
My initial feeling is that these elements are in an array, in which case you're seeing Firebase's handling of arrays. Can you replace the screenshot with the actual JSON as text, and make sure the containing element is also in there? You can get this by clicking the "Export JSON" link in the overflow menu (⠇) on your Firebase Database console.
– Frank van Puffelen
Jan 3 at 0:00
My initial feeling is that these elements are in an array, in which case you're seeing Firebase's handling of arrays. Can you replace the screenshot with the actual JSON as text, and make sure the containing element is also in there? You can get this by clicking the "Export JSON" link in the overflow menu (⠇) on your Firebase Database console.
– Frank van Puffelen
Jan 3 at 0:00
|
show 4 more comments
1 Answer
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There was array issue. When we remove an array in Firebase it replace that element with null. So the above article was helpful for me. Thanks
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
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There was array issue. When we remove an array in Firebase it replace that element with null. So the above article was helpful for me. Thanks
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
add a comment |
0
There was array issue. When we remove an array in Firebase it replace that element with null. So the above article was helpful for me. Thanks
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
add a comment |
0
0
0
There was array issue. When we remove an array in Firebase it replace that element with null. So the above article was helpful for me. Thanks
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
There was array issue. When we remove an array in Firebase it replace that element with null. So the above article was helpful for me. Thanks
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
answered Jan 4 at 17:44
Imteyaz AshrafImteyaz Ashraf
13
13
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I don't see any
nullvalue in your database. Can you point out what specific value is being written when you callremove()?– Frank van Puffelen
Jan 2 at 15:21
When I call remove() null is getting inserted at the removed node place. It's not reflected here once I export the data in json from Firebase there I find it.
– Imteyaz Ashraf
Jan 2 at 18:21
In that case please replace the screenshot with the actual JSON that shows the problematic value that you're asking about.
– Frank van Puffelen
Jan 2 at 19:05
@FrankvanPuffelen sir i have attached the json image please help me out.
– Imteyaz Ashraf
Jan 2 at 21:50
My initial feeling is that these elements are in an array, in which case you're seeing Firebase's handling of arrays. Can you replace the screenshot with the actual JSON as text, and make sure the containing element is also in there? You can get this by clicking the "Export JSON" link in the overflow menu (⠇) on your Firebase Database console.
– Frank van Puffelen
Jan 3 at 0:00