On Sat, Dec 8, 2012 at 10:02 AM, Jimmy Haver <[email protected]> wrote:
> Here is the none working format, this is in a function that should return
> results when db is finished.
>
Since the code is async, you can't actually *return* when the results have
been collected. You'll need to update your code such that it calls a
callback when you have the results. See below.
>
> var results = [];
> dependencies.forEach(function(dependency) {
> db.collection('parts_relations').find(query).toArray(function(err,
> relations) {
> relations.forEach(function(relation) {
> results.push(relation);
> });
> });
> });
>
> I have tried two things without success:
> (this returns before finishing)
> var results = [];
> var counter = 0;
> dependencies.forEach(function(dependency) {
> counter++;
> db.collection('parts_relations').find(query).toArray(function(err,
> relations) {
> relations.forEach(function(relation) {
> results.push(relation);
> });
> if (counter >= dependencies.length) {
> return results;
>
Here, you are returning the results from the callback passed to toArray(),
not the function you're thinking you're returning from, I think. However,
if you modify your enclosing function to take in a callback, as mentioned
above, then you can call that callback here, instead of trying to return.
--
Martin Cooper
> }
> });
> });
>
> I also tried wrapping db.collection in a function and passing it to
> async.parallel without luck. Any suggestions?
>
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