Mongo Query on Subfields

Question

I have a document -

  {\"_id\" : ObjectId(\"51385d2308d427ce306f0100\"),
  \"aid\" : \"1\",
  \"studyId\" : \"study-1\",
  \"mediaType\" : \"mic         


        

Answer 1

you could use mapReduce() where the map() function would contain something like:

// loop all key/value pairs in status without knowing its key
for ( item in this.status ) {
    // if value is required: emit the data and break the loop
    if ( this.status[item] == "required" ) {
        emit( ... )
        break;
    }
}

does this help ?

Cheers

Ronald