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635 daniel-mar 1 
<?php
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/*
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 * OIDplus 2.0
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 * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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namespace ViaThinkSoft\OIDplus;
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// phpcs:disable PSR1.Files.SideEffects
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\defined('INSIDE_OIDPLUS') or die;
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// phpcs:enable PSR1.Files.SideEffects
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class OIDplusQueryResultPDO extends OIDplusQueryResult {
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        /**
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         * @var bool
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         */
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        protected $no_resultset;
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        /**
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         * @var mixed
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         */
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        protected $res;
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        /**
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         * @param mixed $res
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         */
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        public function __construct($res) {
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                $this->no_resultset = is_bool($res);
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                if (!$this->no_resultset) {
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                        $this->res = $res;
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                        // This way we can simulate MARS (Multiple Active Result Sets) so that the test case "Simultanous prepared statements" works
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                        $this->prefetchedArray = $this->res->fetchAll();
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                }
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        }
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        /**
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         *
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         */
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        public function __destruct() {
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                if ($this->res) $this->res->closeCursor();
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        }
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        /**
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         * @return bool
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         */
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        public function containsResultSet(): bool {
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                return !$this->no_resultset;
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        }
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        /**
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         * @return void
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         */
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        public function prefetchAll() {
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                if (!is_null($this->prefetchedArray)) return;
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                $this->prefetchedArray = $this->res->fetchAll();
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        }
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        /**
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         * @return int
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         */
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        protected function do_num_rows(): int {
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                $ret = $this->res->rowCount();
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                // -1 can happen when PDO is connected via ODBC that is running a driver that does not support num_rows (e.g. Microsoft Access)
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                if ($ret === -1) {
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                        $this->prefetchAll();
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                        return count($this->prefetchedArray) + $this->countAlreadyFetched;
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                }
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                return $ret;
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        }
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        /**
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         * @return array|null
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         */
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        protected function do_fetch_array()/*: ?array*/ {
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                $ret = $this->res->fetch(\PDO::FETCH_ASSOC);
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                if ($ret === false) $ret = null;
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                return $ret;
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        }
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        /**
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         * @return object|null
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         */
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        protected function do_fetch_object()/*: ?object*/ {
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                $ret = $this->res->fetch(\PDO::FETCH_OBJ);
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                if ($ret === false) $ret = null;
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                return $ret;
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        }
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}