function computeDiffSubmittedFacesBetweenExhibitions(round, ex) {
var set, faces, other_faces = [];
if (ex === 'A') {
set = ['B','C'];
}
else if (ex === 'B') {
set = ['A','C'];
}
else {
set = ['B','A'];
}
// faces submitted to other exhibitions
J.each(set, function(ex) {
other_faces = other_faces.concat(prac.getSubmittedFacesByEx(db, ex, round).fetch());
});
// faces in ex of reference
faces = prac.getSubmittedFacesByEx(db, ex, round).fetch();
if ('undefined' === typeof faces || !faces.length || faces.length === 1) return 'NA';
if ('undefined' === typeof other_faces || !other_faces.length || other_faces.length === 1) return 'NA';
return prac.getAvgFaceDistanceGroupFromGroup(faces, other_faces);
}
J.each(set, function(ex) {
other_faces = other_faces.concat(prac.getSubmittedFacesByEx(db, ex, round).fetch());
});
function computeDiffSubmittedFaces(round, ex) {
//console.log(round, ex);
var faces = prac.getSubmittedFacesByEx(db, ex, round).fetch();
return ('undefined' === typeof faces || !faces.length) ? 'NA' : prac.getAvgFaceDistance(faces);
}