Mixing
mongodb - query documents by value of field name
1
Given I have these documents in User collection:
{
userId: "user-a",
points: {
date: {
1: 100,
5: 20,
11: 65,
},
},
}
{
userId: "user-b",
points: {
date: {
31: 20,
25: 40,
11: 15,
},
},
}
What I want to do is I want to query users with points.date.[number] value exist and [number] < 7 for example. How can I do that ?
javascript mongodb meteor mongoose aggregation-framework
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
add a comment |
1
Given I have these documents in User collection:
{
userId: "user-a",
points: {
date: {
1: 100,
5: 20,
11: 65,
},
},
}
{
userId: "user-b",
points: {
date: {
31: 20,
25: 40,
11: 15,
},
},
}
What I want to do is I want to query users with points.date.[number] value exist and [number] < 7 for example. How can I do that ?
javascript mongodb meteor mongoose aggregation-framework
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
add a comment |
1
1
1
Given I have these documents in User collection:
{
userId: "user-a",
points: {
date: {
1: 100,
5: 20,
11: 65,
},
},
}
{
userId: "user-b",
points: {
date: {
31: 20,
25: 40,
11: 15,
},
},
}
What I want to do is I want to query users with points.date.[number] value exist and [number] < 7 for example. How can I do that ?
javascript mongodb meteor mongoose aggregation-framework
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
Given I have these documents in User collection:
{
userId: "user-a",
points: {
date: {
1: 100,
5: 20,
11: 65,
},
},
}
{
userId: "user-b",
points: {
date: {
31: 20,
25: 40,
11: 15,
},
},
}
What I want to do is I want to query users with points.date.[number] value exist and [number] < 7 for example. How can I do that ?
javascript mongodb meteor mongoose aggregation-framework
javascript mongodb meteor mongoose aggregation-framework
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
edited Jan 3 at 4:57
Anthony Winzlet
17.8k42245
17.8k42245
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
asked Jan 2 at 11:50
sonlexqtsonlexqt
1,84112238
1,84112238
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
3
Since your keys are unknown you have to convert them to some key value pair using $objectToArray aggregation and then can easily $match with it
db.collection.aggregate([
{ "$match": { "points.date[number]": { "$exists": true }}},
{ "$addFields": {
"match": {
"$objectToArray": "$points.date"
}
}},
{ "$match": { "match.k": { "$lt": "7" }}},
{ "$project": { "match": 0 }}
])
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
hi, I tried using your query but it returns an empty array. I triedpoints.dateinstead ofpoints.date[number]then it has some results but in the returned documents, points.date.(number) always have(number) > 7(doesn't match the condition thatnumbershould be less than 7)
– sonlexqt
Jan 5 at 1:13
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
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
3
Since your keys are unknown you have to convert them to some key value pair using $objectToArray aggregation and then can easily $match with it
db.collection.aggregate([
{ "$match": { "points.date[number]": { "$exists": true }}},
{ "$addFields": {
"match": {
"$objectToArray": "$points.date"
}
}},
{ "$match": { "match.k": { "$lt": "7" }}},
{ "$project": { "match": 0 }}
])
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
hi, I tried using your query but it returns an empty array. I triedpoints.dateinstead ofpoints.date[number]then it has some results but in the returned documents, points.date.(number) always have(number) > 7(doesn't match the condition thatnumbershould be less than 7)
– sonlexqt
Jan 5 at 1:13
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
add a comment |
3
Since your keys are unknown you have to convert them to some key value pair using $objectToArray aggregation and then can easily $match with it
db.collection.aggregate([
{ "$match": { "points.date[number]": { "$exists": true }}},
{ "$addFields": {
"match": {
"$objectToArray": "$points.date"
}
}},
{ "$match": { "match.k": { "$lt": "7" }}},
{ "$project": { "match": 0 }}
])
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
hi, I tried using your query but it returns an empty array. I triedpoints.dateinstead ofpoints.date[number]then it has some results but in the returned documents, points.date.(number) always have(number) > 7(doesn't match the condition thatnumbershould be less than 7)
– sonlexqt
Jan 5 at 1:13
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
add a comment |
3
3
3
Since your keys are unknown you have to convert them to some key value pair using $objectToArray aggregation and then can easily $match with it
db.collection.aggregate([
{ "$match": { "points.date[number]": { "$exists": true }}},
{ "$addFields": {
"match": {
"$objectToArray": "$points.date"
}
}},
{ "$match": { "match.k": { "$lt": "7" }}},
{ "$project": { "match": 0 }}
])
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
Since your keys are unknown you have to convert them to some key value pair using $objectToArray aggregation and then can easily $match with it
db.collection.aggregate([
{ "$match": { "points.date[number]": { "$exists": true }}},
{ "$addFields": {
"match": {
"$objectToArray": "$points.date"
}
}},
{ "$match": { "match.k": { "$lt": "7" }}},
{ "$project": { "match": 0 }}
])
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
answered Jan 2 at 12:03
Anthony WinzletAnthony Winzlet
17.8k42245
17.8k42245
hi, I tried using your query but it returns an empty array. I triedpoints.dateinstead ofpoints.date[number]then it has some results but in the returned documents, points.date.(number) always have(number) > 7(doesn't match the condition thatnumbershould be less than 7)
– sonlexqt
Jan 5 at 1:13
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
add a comment |
hi, I tried using your query but it returns an empty array. I triedpoints.dateinstead ofpoints.date[number]then it has some results but in the returned documents, points.date.(number) always have(number) > 7(doesn't match the condition thatnumbershould be less than 7)
– sonlexqt
Jan 5 at 1:13
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
hi, I tried using your query but it returns an empty array. I tried
points.date instead of points.date[number] then it has some results but in the returned documents, points.date.(number) always have (number) > 7 (doesn't match the condition that number should be less than 7)– sonlexqt
Jan 5 at 1:13
hi, I tried using your query but it returns an empty array. I tried
points.date instead of points.date[number] then it has some results but in the returned documents, points.date.(number) always have (number) > 7 (doesn't match the condition that number should be less than 7)– sonlexqt
Jan 5 at 1:13
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
Could you explain bit more
– Anthony Winzlet
Jan 7 at 17:26
add a comment |
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