elasticsearch complex query on nested object - elasticsearch

Question

i have a list of books, each book has nested tag:
"hits": [
{
"_index": "",
"_type": "",
"_id": "",
"_score": ,
"_source": {
"name": "book1",
"tags": [
{
"t": "tagA",
"w": 100
},
{
"t": "tagB",
"w": 0
},
],
"active": true,
}
},
{
"_index": "",
"_type": "",
"_id": "",
"_score": ,
"_source": {
"name": "book2",
"tags": [
{
"t": "tagA",
"w": 100
},
{
"t": "tagB",
"w": 0
},
],
"active": true,
}
},
{
"_index": "",
"_type": "",
"_id": "",
"_score": ,
"_source": {
"name": "book3",
"tags": [
{
"t": "tagC",
"w": 100
},
{
"t": "tagB",
"w": 0
},
],
"active": false,
}
}]
first, i tried to get all 'active' books with a specific tag, this can get by this query:
GET /index/type/_search
{
"query": {
"bool": {
"must_not": {"term" : { "active" : false}},
"must":
[
{
"nested": {
"path": "tags",
"query": {
"bool": {
"must": [
{
"match": {
"tags.t": "tagB"
}
}
]
}
}
}
}
]
}
}
}
for the above, book1 and book2 returned.
but what i am trying to get now is become more complicated.
i am trying to get 'active' books with a specific tag (tagB). but if 'tagC' is in book, then book can return also if it is not active.
so for this question, book1, book2, book3 will return.
how can i do this query in elasticsearch?

Answer 1

Try this, a should clause for both conditions
{
"query": {
"bool": {
"should": [
{
"nested": {
"path": "tags",
"query": {
"bool": {
"must": [
{
"match": {
"tags.t": "tagC"
}
}
]
}
}
}
},
{
"bool": {
"must": [
{
"term": {
"active": true
}
},
{
"nested": {
"path": "tags",
"query": {
"bool": {
"must": [
{
"match": {
"tags.t": "tagB"
}
}
]
}
}
}
}
]
}
}
]
}
}
}