65 lines
1.3 KiB
PHP
65 lines
1.3 KiB
PHP
<?php
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/** @license MIT
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* Copyright 2017 J. King, Dustin Wilson et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace JKingWeb\Arsse\Db;
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abstract class AbstractResult implements Result {
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protected $pos = 0;
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protected $cur = null;
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// actual public methods
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public function getValue() {
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if ($this->valid()) {
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$out = array_shift($this->cur);
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$this->next();
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return $out;
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} else {
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return null;
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}
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}
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public function getRow() {
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if ($this->valid()) {
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$out = $this->cur;
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$this->next();
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return $out;
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} else {
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return null;
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}
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}
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public function getAll(): array {
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return iterator_to_array($this, false);
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}
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abstract public function changes();
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abstract public function lastId();
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// PHP iterator methods
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abstract public function valid();
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public function next() {
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$this->cur = null;
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$this->pos += 1;
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}
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public function current() {
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return $this->cur;
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}
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public function key() {
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return $this->pos;
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}
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public function rewind() {
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if ($this->pos) {
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throw new Exception("resultReused");
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}
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}
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}
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