model.php

<?php

    class Model {

        /* public Model->load(Integer)
         * returns $this
         *
         * Pulls data from the database for a given model into the object. Note
         * that this clears any state (modifications/etc.) that have been set
         * on the object first, for any Model-controlled columns.
         */
        public function load($id) {
            $table = $this->table();
            $query = "SELECT * FROM $table WHERE id = $1";
            $name  = "_load_$table";

            $data = Database::prefetch($query, Array($id), $name);
            $this->_set_all($data[0]);

            return $this;
        }
    }