Question

I heed two variables storing the maximum id from a table, and the minimum id from the same table.

the first id is easy to be taken ,using find() and a query like

        $first = Model::factory('product')->sale($sale_id)->find();

but how can i retrieve the last id? is there a sorting option in the Kohana 3 ORM?
thanks!

Answer 1

Doing like this, I suppose you’ll be :

• selecting all lines of your table that correspond to your condition
• fetching all those lines from MySQL to PHP
• to, finally, only work with one of those lines

Ideally, you should be doing an SQL query that uses the MAX() or the MIN() function — a bit like this :

select max(your_column) as max_value
from your_table
where ...

Not sure how to do that with Kohana, but this topic on its forum looks interesting.