Subversion-Projekte lars-tiefland.ci

<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2018, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package     CodeIgniter
 * @author      EllisLab Dev Team
 * @copyright   Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
 * @copyright   Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
 * @license     http://opensource.org/licenses/MIT      MIT License
 * @link        https://codeigniter.com
 * @since       Version 1.4.1
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * oci8 Result Class
 *
 * This class extends the parent result class: CI_DB_result
 *
 * @category    Database
 * @author              EllisLab Dev Team
 * @link                https://codeigniter.com/user_guide/database/
 */
class CI_DB_oci8_result extends CI_DB_result {

        /**
         * Statement ID
         *
         * @var resource
         */
        public $stmt_id;

        /**
         * Cursor ID
         *
         * @var resource
         */
        public $curs_id;

        /**
         * Limit used flag
         *
         * @var bool
         */
        public $limit_used;

        /**
         * Commit mode flag
         *
         * @var int
         */
        public $commit_mode;

        // --------------------------------------------------------------------

        /**
         * Class constructor
         *
         * @param       object  &$driver_object
         * @return      void
         */
        public function __construct(&$driver_object)
        {
                parent::__construct($driver_object);

                $this->stmt_id = $driver_object->stmt_id;
                $this->curs_id = $driver_object->curs_id;
                $this->limit_used = $driver_object->limit_used;
                $this->commit_mode =& $driver_object->commit_mode;
                $driver_object->stmt_id = FALSE;
        }

        // --------------------------------------------------------------------

        /**
         * Number of fields in the result set
         *
         * @return      int
         */
        public function num_fields()
        {
                $count = oci_num_fields($this->stmt_id);

                // if we used a limit we subtract it
                return ($this->limit_used) ? $count - 1 : $count;
        }

        // --------------------------------------------------------------------

        /**
         * Fetch Field Names
         *
         * Generates an array of column names
         *
         * @return      array
         */
        public function list_fields()
        {
                $field_names = array();
                for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++)
                {
                        $field_names[] = oci_field_name($this->stmt_id, $c);
                }
                return $field_names;
        }

        // --------------------------------------------------------------------

        /**
         * Field data
         *
         * Generates an array of objects containing field meta-data
         *
         * @return      array
         */
        public function field_data()
        {
                $retval = array();
                for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++)
                {
                        $F              = new stdClass();
                        $F->name        = oci_field_name($this->stmt_id, $c);
                        $F->type        = oci_field_type($this->stmt_id, $c);
                        $F->max_length  = oci_field_size($this->stmt_id, $c);

                        $retval[] = $F;
                }

                return $retval;
        }

        // --------------------------------------------------------------------

        /**
         * Free the result
         *
         * @return      void
         */
        public function free_result()
        {
                if (is_resource($this->result_id))
                {
                        oci_free_statement($this->result_id);
                        $this->result_id = FALSE;
                }

                if (is_resource($this->stmt_id))
                {
                        oci_free_statement($this->stmt_id);
                }

                if (is_resource($this->curs_id))
                {
                        oci_cancel($this->curs_id);
                        $this->curs_id = NULL;
                }
        }

        // --------------------------------------------------------------------

        /**
         * Result - associative array
         *
         * Returns the result set as an array
         *
         * @return      array
         */
        protected function _fetch_assoc()
        {
                $id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
                return oci_fetch_assoc($id);
        }

        // --------------------------------------------------------------------

        /**
         * Result - object
         *
         * Returns the result set as an object
         *
         * @param       string  $class_name
         * @return      object
         */
        protected function _fetch_object($class_name = 'stdClass')
        {
                $row = ($this->curs_id)
                        ? oci_fetch_object($this->curs_id)
                        : oci_fetch_object($this->stmt_id);

                if ($class_name === 'stdClass' OR ! $row)
                {
                        return $row;
                }

                $class_name = new $class_name();
                foreach ($row as $key => $value)
                {
                        $class_name->$key = $value;
                }

                return $class_name;
        }

}