add-remove

    'add-to-members': function(postId,userId, postTitle, roomId)
    {
        var curId = curId;
        var coll = Posts.find({_id: postId,"requests.userId": curId}, {fields: {'requests': 1,'roomId':1}}).fetch();
        var members =  Posts.find({_id: postId}, {fields: {'members': 1}}).fetch()[0].members;
        var requesters = coll[0].requests;
        var newRequesters = _.without(requesters, _.findWhere(requesters, {userId: curId}));
        var curUsr = _.findWhere(requesters, {userId: curId});
        members.push(curUsr);
        Posts.update({_id: postId},{$set:{requests:newRequesters,members:members}});

        var params = {
            userId: curId,
            request: {
                title: postTitle,
                reqId: postId
            },
            who: {
                id: Meteor.user()._id,
                name: Meteor.user().profile.name
            }
        }

        var fields = {
            roomId: roomId,
            userId: curId
        }
        Meteor.call('addInLastSeen', fields, function (error) {
            if (error)
                throwError(error.reason);
        });

        Meteor.call('notifyUser', 'invite', params, function (error) {
            if (error)
                throwError(error.reason);
        });

        var html = Blaze.toHTMLWithData(Template.addInTeam,params);
        Meteor.call('sendEmail','addInTeam',params,html);
    },
      remove-from-members': function(postId, userId)
    {
        var curId = userId;
        var coll = Posts.find({_id: postId,"members.userId": curId}, {fields: {'members': 1, 'roomId': 1}}).fetch();
        var requesters =  Posts.find({_id: postId}, {fields: {'requests': 1}}).fetch()[0].requests;
        var members = coll[0].members;
        var newMembers = _.without(members, _.findWhere(members, {userId: curId}));
        var curUsr = _.findWhere(members, {userId: curId});
        requesters.push(curUsr);
        Posts.update({_id: postId},{$set:{requests:requesters,members:newMembers}});
        var obj = {
            roomId: coll[0].roomId,
            userId: curId
        };

        Meteor.call('removeFromLastSeen', obj, function (error) {
            if (error)
                throwError(error.reason);
        });
    }