In Mongoose, query fields based on array - arrays

Question

I am trying to query documents from a mongodb collection, based on array of input query parameters sent from URL.
Sample Database Data
[
{
"drawings": {
"circle": [],
"square": [
{
"id": "828",
"name": "square"
}
],
"cube": []
},
{
"drawings": {
"circle": [
{
"id": "827",
"name": "circle"
}
],
"square": [],
"cube": []
},
{
"drawings": {
"circle": [],
"square": [],
"cube": [
{
"id": "829",
"name": "cube"
}
]
}
]
Input Query Parameter:
query = ["square","cube"];
Expected Output:
[
{
"drawings": {
"circle": [],
"square": [
{
"id": "828",
"name": "square"
}
],
"cube": []
},
{
"drawings": {
"circle": [],
"square": [],
"cube": [
{
"id": "829",
"name": "cube"
}
]
}
]
Best suited Mongoose Query:
Schema.find({
$or:[
{'drawings.square':{$elemMatch:{ name:'square'}}},
{'drawings.cube':{$elemMatch:{ name:'cube'}}}
]
});
Tried Below method. But, it is not correct.
let draw = ["square","cube"];
let draw_query =[];
for (let a=0; a<draw.length;a++){
draw_query.push("{\"drawings."+ draw[a] +"\':{$elemMatch:{ name:\"" + draw[a] + "\"}}}");
}
It creates array with single quoted strings. It cannot be used.
[ '{"drawings.square":{$elemMatch:{ name:"square"}}}',
'{"drawings.cube":{$elemMatch:{ name:"cube"}}}' ]
How to generate this mongoose query dynamically? or is there any better mongoose query to achieve the expected result.

Answer 1

You can query it directly using dot notation so the query should look like below:
db.collection.find({
$or: [
{
"drawings.square.name": "square"
},
{
"drawings.circle.name": "circle"
}
]
})
You can build it in JS using .map(), try:
var query = ["square","cube"];
var orQuery = { $or: query.map(x => ({ [x + ".name"]: x }) ) }