db.collections and db.listCollections returning the same?

[ciscoheat]

It seems like they both return what I'm expecting listCollections to return. I can't use any of the collection methods on the returned objects when using collections.

[pluma]

I can't reproduce this problem. collections returns a list of collection instances for me.

Could you show the code you are using?

[ciscoheat]

It's very simple:

var db = new require("arangojs").Database({ url : "http://root:@localhost:8529", databaseName: "somedb" });

db.collections(function(err, collections) {
    async.each(collections,function(c, done) {
        // Cannot call truncate directly here, get this error:
        // TypeError: c.truncate is not a function
        //
        // Need to call db.collection first:
        db.collection(c.name).truncate(function(err1, info) {
            if(err1 != null) {
                done(err1);
                return;
            }
            done(null);
        });
    },function(err2) {
        // ...
    });
});

I'm using arangojs 5.0.0 and ArangoDB 3.0.0-rc2. I should have said that yesterday, but it was very late...!

[pluma]

Interesting. The problem only seems to occur when using the callback API but not the promise API.

EDIT: I also noticed that collections always returns a promise (whereas normally it shouldn't if a callback is provided), so apparently it doesn't recognize the callback correctly.

EDIT2: D'oh, I found the error: it always expects a first argument, so when passing a callback it is treated as the excludeSystem argument instead (but listCollections is called internally and receives the same argument which it recognizes as the callback).

[pluma]

I've published 5.0.1 which fixes this. Thanks for pointing this out.

[ciscoheat]

No problem, thanks for the quick fix! :) Confirmed that it's working for me.