go - How to return dynamic type struct in Golang?

Question

I am using Golang Revel for some web project and I did like 12 projects in that so far. In all of them I have a lot of code redundancy because of return types. Look at this two functions:

func (c Helper) Brands() []*models.Brand{

    //do some select on rethinkdb and populate correct model
    var brands []*models.Brand
    rows.All(&brands)

    return brands

}

func (c Helper) BlogPosts() []*models.Post{

    //do some select on rethinkdb and populate correct model
    var posts []*models.Post
    rows.All(&posts)

    return posts

}

As you can see they they both returns same type of data (type struct). My idea was just to pass string var like this:

func (c Helper) ReturnModels(modelName string) []*interface{} {

    //do rethinkdb select with modelName and return []*interface{} for modelName
}

Like this I can have just one helper for returning data types instead of doing same thing over and over again for different models but same data type.

My questions are:

1. Is this possible at all
2. If yes can you point me to right docs
3. If no, I will be more then happy to return your answer :)

Answer 1

Waitting for answers