ORMResult.php

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<?php
class ORMResult implements ORMIterator {
    protected $res;

    protected $key;

    protected $current;

    protected $table;

    public function __construct( IORMTable $table, ResultWrapper $res ) {
        $this->table = $table;
        $this->res = $res;
        $this->key = 0;
        $this->setCurrent( $this->res->current() );
    }

    protected function setCurrent( $row ) {
        if ( $row === false ) {
            $this->current = false;
        } else {
            $this->current = $this->table->newRowFromDBResult( $row );
        }
    }

    public function count() {
        return $this->res->numRows();
    }

    public function isEmpty() {
        return $this->res->numRows() === 0;
    }

    public function current() {
        return $this->current;
    }

    public function key() {
        return $this->key;
    }

    public function next() {
        $row = $this->res->next();
        $this->setCurrent( $row );
        $this->key++;
    }

    public function rewind() {
        $this->res->rewind();
        $this->key = 0;
        $this->setCurrent( $this->res->current() );
    }

    public function valid() {
        return $this->current !== false;
    }
}