How to create index on array element in indexeddb

[a2prn]

I have an object.

var _data = {
teacher : {
name : "Mack",
subject : "Maths"
},
Student : [{
stud_name : "Alex",
stud_id : 1
},{
stud_name : "Jack",
stud_id : 2
},{
stud_name : "Mark",
stud_id : 3
}]
};

I want to create index on array element of object.
i.e, I want to create an index on stud_name. Is it possible to create such type of index in indexeddb?

[webcss]

Please refer to indexeddb documentation https://developer.mozilla.org/en-US/docs/IndexedDB/Using_IndexedDB to learn how to create indexes (on array elements).

[a2prn]

Thanks webcss, I am able to create index on array element if I have object like this,

var data = {
teacher : {
name : "Mack",
subject : "Maths"
},
Student : ["Mark" , "John"]
}

by using:
store.createIndex("indexname","data .Student", {unique:false,multiEntry:true});

But I am not able to create index on array of object element.

eg:
var data = {
teacher : {
name : "Mack",
subject : "Maths"
},
Student : [{
studname : "Alex",
stud_id : 1
},{
stud_name : "Jack",
stud_id : 2
},{
stud_name : "Mark",
stud_id : 3
}]
};

In object above data object has Student array, which has multiple objects. And I want to create index on array of object (data.Student.stud_name). Is it possible to create such type of index?

[webcss]

As proposed here https://developer.mozilla.org/en-US/docs/IndexedDB/Using_IndexedDB#Structuring_the_database it definitly is possible to solve your problem.

[fredtma]

Has there been a solution to this?
The specified link does not say much

[codershop]

It currently is not possible to create an index from a property of an object in an array of objects. There was an issue filed for the spec that you can follow here: w3c/IndexedDB#35