DataMapper - Counting related items

[eluser]Anestetikas[/eluser]
I have a little bit different problem. Im just starting using datamapper.
Example:
tables:

Code:

bookshelfs(id, name)

books(id, bookshelf_id, title, pagecount)

poems(id, book_id, name, length...)

I want to list of bookshelfs:

Bookshelf number, bookCount, poemCount

As I imagine MVC and ci, i need to generate a list of bookshelfs and pass it to view, i do:

Code:

$shelfs = new Boookshelf();
$shelfs->include_related_count('book');

at this point everything is good, I can pass $shelfs to a view and with foreach loop I can output book_count as a number of books for shelf.

If i do

$shelfs->include_related_count('poem');

I get an error

Unable to relate bookshelf with poem.

In my bookshelf model:

Code:

$has_many = array('book');

book model:

Code:

$has_one = array('bookshelf');  $has_many = array('poem');

In poem model:

Code:

$has_one = array('book');

I can bypass this by starting to ->get() stuff in the view but its the wrong way to do it as I suppose.
My main goal is to show how many poems does the bookshelf contain. What am i missing here?



GOT IT !!!
This stuff is so awesome!
Did the wrong approach.