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t = db.mr2;
t.drop();
t.save({comments: [{who: "a", txt: "asdasdasd"}, {who: "b", txt: "asdasdasdasdasdasdas"}]});
t.save({comments: [{who: "b", txt: "asdasdasdaaa"}, {who: "c", txt: "asdasdasdaasdasdas"}]});
function m() {
for (var i = 0; i < this.comments.length; i++) {
var c = this.comments[i];
emit(c.who, {totalSize: c.txt.length, num: 1});
}
}
function r(who, values) {
var n = {
totalSize: 0,
num: 0
};
for (var i = 0; i < values.length; i++) {
n.totalSize += values[i].totalSize;
n.num += values[i].num;
}
return n;
}
function reformat(r) {
var x = {};
var cursor;
if (r.results)
cursor = r.results;
else
cursor = r.find();
cursor.forEach(function(z) {
x[z._id] = z.value;
});
return x;
}
function f(who, res) {
res.avg = res.totalSize / res.num;
return res;
}
res = t.mapReduce(m, r, {finalize: f, out: "mr2_out"});
printjson(res);
x = reformat(res);
assert.eq(9, x.a.avg, "A1");
assert.eq(16, x.b.avg, "A2");
assert.eq(18, x.c.avg, "A3");
res.drop();
// inline does needs to exist - so set it to false to make sure the code is just checking for
// existence
res = t.mapReduce(m, r, {finalize: f, out: {inline: 0}});
printjson(res);
x = reformat(res);
assert.eq(9, x.a.avg, "B1");
assert.eq(16, x.b.avg, "B2");
assert.eq(18, x.c.avg, "B3");
res.drop();
assert(!("result" in res), "B4");
res = t.mapReduce(m, r, {finalize: f, out: "mr2_out", jsMode: true});
printjson(res);
x = reformat(res);
assert.eq(9, x.a.avg, "A1");
assert.eq(16, x.b.avg, "A2");
assert.eq(18, x.c.avg, "A3");
res.drop();
res = t.mapReduce(m, r, {finalize: f, out: {inline: 5}, jsMode: true});
printjson(res);
x = reformat(res);
assert.eq(9, x.a.avg, "B1");
assert.eq(16, x.b.avg, "B2");
assert.eq(18, x.c.avg, "B3");
res.drop();
assert(!("result" in res), "B4");
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