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 - 2019, 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 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
 * @license     https://opensource.org/licenses/MIT     MIT License
 * @link        https://codeigniter.com
 * @since       Version 2.0.3
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * SQLSRV 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_sqlsrv_result extends CI_DB_result {

        /**
         * Scrollable flag
         *
         * @var mixed
         */
        public $scrollable;

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

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

                $this->scrollable = $driver_object->scrollable;
        }

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

        /**
         * Number of rows in the result set
         *
         * @return      int
         */
        public function num_rows()
        {
                // sqlsrv_num_rows() doesn't work with the FORWARD and DYNAMIC cursors (FALSE is the same as FORWARD)
                if ( ! in_array($this->scrollable, array(FALSE, SQLSRV_CURSOR_FORWARD, SQLSRV_CURSOR_DYNAMIC), TRUE))
                {
                        return parent::num_rows();
                }

                return is_int($this->num_rows)
                        ? $this->num_rows
                        : $this->num_rows = sqlsrv_num_rows($this->result_id);
        }

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

        /**
         * Number of fields in the result set
         *
         * @return      int
         */
        public function num_fields()
        {
                return @sqlsrv_num_fields($this->result_id);
        }

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

        /**
         * Fetch Field Names
         *
         * Generates an array of column names
         *
         * @return      array
         */
        public function list_fields()
        {
                $field_names = array();
                foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field)
                {
                        $field_names[] = $field['Name'];
                }

                return $field_names;
        }

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

        /**
         * Field data
         *
         * Generates an array of objects containing field meta-data
         *
         * @return      array
         */
        public function field_data()
        {
                $retval = array();
                foreach (sqlsrv_field_metadata($this->result_id) as $i => $field)
                {
                        $retval[$i]             = new stdClass();
                        $retval[$i]->name       = $field['Name'];
                        $retval[$i]->type       = $field['Type'];
                        $retval[$i]->max_length = $field['Size'];
                }

                return $retval;
        }

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

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

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

        /**
         * Result - associative array
         *
         * Returns the result set as an array
         *
         * @return      array
         */
        protected function _fetch_assoc()
        {
                return sqlsrv_fetch_array($this->result_id, SQLSRV_FETCH_ASSOC);
        }

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

        /**
         * Result - object
         *
         * Returns the result set as an object
         *
         * @param       string  $class_name
         * @return      object
         */
        protected function _fetch_object($class_name = 'stdClass')
        {
                return sqlsrv_fetch_object($this->result_id, $class_name);
        }

}