Filter firebase records by the array value of a specific property
I am playing around with firebase functions and I have a question. The structure of my firebase DB is as follows:
myDb
|
Users
|
000001
|
Name: Sam
|
Items: [1,2,3]
|
000002
|
Name: Jim
|
Items: [3,4,5]
And what I want to do is to filter all of the users which have 3 inside of their Items value. I didn't find anything similar to: this SO post on their documentations for filtering data. Maybe because it is not a simple value. I don't know. I am now wondering how to perform this particular filtering.
firebase react-native google-cloud-functions asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
add a comment |
I am playing around with firebase functions and I have a question. The structure of my firebase DB is as follows:
myDb
|
Users
|
000001
|
Name: Sam
|
Items: [1,2,3]
|
000002
|
Name: Jim
|
Items: [3,4,5]
And what I want to do is to filter all of the users which have 3 inside of their Items value. I didn't find anything similar to: this SO post on their documentations for filtering data. Maybe because it is not a simple value. I don't know. I am now wondering how to perform this particular filtering.
firebase react-native google-cloud-functions asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
How do you store the array? Is the index of the element the key property:items: { 0: 1, 1: 2, 2:3 }
– Hristo Eftimov
Nov 13 '18 at 8:47
add a comment |
I am playing around with firebase functions and I have a question. The structure of my firebase DB is as follows:
myDb
|
Users
|
000001
|
Name: Sam
|
Items: [1,2,3]
|
000002
|
Name: Jim
|
Items: [3,4,5]
And what I want to do is to filter all of the users which have 3 inside of their Items value. I didn't find anything similar to: this SO post on their documentations for filtering data. Maybe because it is not a simple value. I don't know. I am now wondering how to perform this particular filtering.
firebase react-native google-cloud-functions asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
I am playing around with firebase functions and I have a question. The structure of my firebase DB is as follows:
myDb
|
Users
|
000001
|
Name: Sam
|
Items: [1,2,3]
|
000002
|
Name: Jim
|
Items: [3,4,5]
And what I want to do is to filter all of the users which have 3 inside of their Items value. I didn't find anything similar to: this SO post on their documentations for filtering data. Maybe because it is not a simple value. I don't know. I am now wondering how to perform this particular filtering.
firebase react-native google-cloud-functions firebase react-native google-cloud-functions asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
asked Nov 13 '18 at 7:37
user2128702user2128702
5161831
5161831
How do you store the array? Is the index of the element the key property:items: { 0: 1, 1: 2, 2:3 }
– Hristo Eftimov
Nov 13 '18 at 8:47
add a comment |
How do you store the array? Is the index of the element the key property:items: { 0: 1, 1: 2, 2:3 }
– Hristo Eftimov
Nov 13 '18 at 8:47
How do you store the array? Is the index of the element the key property:
items: { 0: 1, 1: 2, 2:3 }– Hristo Eftimov
Nov 13 '18 at 8:47
How do you store the array? Is the index of the element the key property:
items: { 0: 1, 1: 2, 2:3 }– Hristo Eftimov
Nov 13 '18 at 8:47
add a comment |
1 Answer
1
active
oldest
votes
Array contain filters aren't possible in Firebase Realtime Database but it is a recent addition to Firestore.
firebase.firestore().collection('users').where('items', 'array-contains', 3)
In the Firebase Realtime Database you would want to structure them as an object which you could query on
{
name: "Jim",
items: {
1: true,
2: true,
3: true
}
}
and then the query would be like this
firebase.database().ref('users').orderByChild('items/3').equalTo(true);
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
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
Array contain filters aren't possible in Firebase Realtime Database but it is a recent addition to Firestore.
firebase.firestore().collection('users').where('items', 'array-contains', 3)
In the Firebase Realtime Database you would want to structure them as an object which you could query on
{
name: "Jim",
items: {
1: true,
2: true,
3: true
}
}
and then the query would be like this
firebase.database().ref('users').orderByChild('items/3').equalTo(true);
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
add a comment |
Array contain filters aren't possible in Firebase Realtime Database but it is a recent addition to Firestore.
firebase.firestore().collection('users').where('items', 'array-contains', 3)
In the Firebase Realtime Database you would want to structure them as an object which you could query on
{
name: "Jim",
items: {
1: true,
2: true,
3: true
}
}
and then the query would be like this
firebase.database().ref('users').orderByChild('items/3').equalTo(true);
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
add a comment |
Array contain filters aren't possible in Firebase Realtime Database but it is a recent addition to Firestore.
firebase.firestore().collection('users').where('items', 'array-contains', 3)
In the Firebase Realtime Database you would want to structure them as an object which you could query on
{
name: "Jim",
items: {
1: true,
2: true,
3: true
}
}
and then the query would be like this
firebase.database().ref('users').orderByChild('items/3').equalTo(true);
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
Array contain filters aren't possible in Firebase Realtime Database but it is a recent addition to Firestore.
firebase.firestore().collection('users').where('items', 'array-contains', 3)
In the Firebase Realtime Database you would want to structure them as an object which you could query on
{
name: "Jim",
items: {
1: true,
2: true,
3: true
}
}
and then the query would be like this
firebase.database().ref('users').orderByChild('items/3').equalTo(true);
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
answered Nov 13 '18 at 9:56
Jack WoodwardJack Woodward
61139
61139
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
add a comment |
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
Would it be possible to have the keys as strings (e.g. {"str1":1, "str2":2}) and then to have .orderByChild('items/str1').equalTo(1); ?
– user2128702
Nov 13 '18 at 19:30
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
No reason why not, it will work
– Jack Woodward
Nov 13 '18 at 20:05
add a comment |
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How do you store the array? Is the index of the element the key property:
items: { 0: 1, 1: 2, 2:3 }– Hristo Eftimov
Nov 13 '18 at 8:47