How to do find in node and mongodb?

Question

This is my \'usergroups\' data

{
    \"_id\": {
        \"$oid\": \"58f7537ec422895572e988a1\"
    },
    \"name\": \"aaa\",
    \"groupname\": \"group north,gro         


        

Answer 1

You can simply get the groupname from the Usergroup, split it to array of two group name using str.split(',') and then query the Group for two groupname as follow:

    Usergroup.findOne({ mobilenumber: 0509867865 }, function(err, usergroup) {
        if (err) {
            return handleError(res, err);
        }
        if (!usergroup) {
            return res.status(404).send('Not Found');
        }
        console.log(usergroup.groupname);

        var groupname   = usergroup.groupname;
        var groups      = groupname.split(',');
        var messages    = {};

        for (var i = groups.length - 1; i >= 0; i--) {
            Group.find({ groupname: groups[i] }, function(err, group) {
                if (err) {
                    return handleError(res, err);
                }
                messages[group.groupname] = group.message;
            });
            if (i == 0) {
                return res.status(200).json(messages);
            }
        }

    });