Combining Tables in Waterline with Promises.

gistfile1.txt

function findArgs(params, callback) {
        params.args.sort = { key : 1, order: 0};
        
        var type = '';
        if(params.args.hasOwnProperty('type')) {
            type = params.args.type;
            delete params.args.type;
        }
        var finder = Meta.find(params.args)
            .then( function(meta) {
                return meta;
            })
            .fail( function(err){
                if(callback && typeof callback === 'function') callback({err: err});
            });
        if(type !== 'all'){
            finder.then( function(meta) {
                if(callback && typeof callback === 'function') callback(meta);
            });
            return;
        }
        finder.then( function(meta){
            var users = User.find({sort: 'lastName ASC'}).then( function(result) {
                result.forEach(function(item, index){
                    result[index] = {id: item.id, key: 'users', value: item.username, label: item.fullName, description: item.displayName, order: 0};
                });
                return result;
            });
            return [meta, users];
        })
        .spread( function(meta, users){
            var combined = meta.concat(users);
            if(callback && typeof callback === 'function') callback(combined);
        });
        return;
}