Elasticsearch Query - how to? - elasticsearch

Question

I have the data in the following format in Elastic Search (from sense)
POST slots/slot/1
{
locationid:"1",
roomid:"10",
starttime: "08:45"
}
POST slots/slot/2
{
locationid:"1",
roomid:"10",
starttime: "09:00"
}
POST slots/slot/3
{
locationid:"2",
roomid:"100",
starttime: "08:45"
}
POST slots/slot/4
{
locationid:"2",
roomid:"101",
starttime: "09:00"
}
POST slots/slot/5
{
locationid:"3",
roomid:"200",
starttime: "09:30"
}
In short , the data is in the following format.
A Location has multiple rooms and each room has multiple slots of 15 minutes. So slot 1 for Room10 starts at 8:45 and ends at 09:00, Slot 2 for same room starts at 09:00 and ends at 09:15
Locationid RoomId Starttime
--------------------------------------
1 10 08:45
1 10 09:00
2 100 08:45
2 101 09:00
3 200 09:30
Im trying to write a query/filter which will give me all locations where a room is available with two or three slots.
For e.g Find a location that has 08:45 slot and 09:00 slot (configurable)
Answer should be location 1 only
Should Not be location 2 as room 100 has 08:45 slot but not the 09:00 slot. Room 101 has 09:00 slot but doesnt have the 08:45 slot

Answer 1

I believe this is not the best approach , but my attempt for the answer
POST slots/slot/_search?pretty=true&search_type=count
{
"facets": {
"locationswithslots": {
"terms": {
"field": "locationid",
"script" : "term + \"_\" + _source.roomid",
"size": 10
},
"facet_filter":
{
"terms":
{
"starttime":
[
"08:45",
"09:00"
]
}
}
}
}
}
This gives the answer as below
{
"took": 12,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 5,
"max_score": 0,
"hits": []
},
"facets": {
"locationswithslots": {
"_type": "terms",
"missing": 0,
"total": 4,
"other": 0,
"terms": [
{
"term": "1_10",
"count": 2
},
{
"term": "2_101",
"count": 1
},
{
"term": "2_100",
"count": 1
}
]
}
}
}
Now I need to figure out a way to filter the facets that return count 2 as I passed in 2 slots in the filter.
Any other option possible?