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 3.0.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * SQLite3 Result Class
 *
 * This class extends the parent result class: CI_DB_result
 *
 * @category    Database
 * @author              Andrey Andreev
 * @link                https://codeigniter.com/user_guide/database/
 */
class CI_DB_sqlite3_result extends CI_DB_result {

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

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

        /**
         * Fetch Field Names
         *
         * Generates an array of column names
         *
         * @return      array
         */
        public function list_fields()
        {
                $field_names = array();
                for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
                {
                        $field_names[] = $this->result_id->columnName($i);
                }

                return $field_names;
        }

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

        /**
         * Field data
         *
         * Generates an array of objects containing field meta-data
         *
         * @return      array
         */
        public function field_data()
        {
                static $data_types = array(
                        SQLITE3_INTEGER => 'integer',
                        SQLITE3_FLOAT   => 'float',
                        SQLITE3_TEXT    => 'text',
                        SQLITE3_BLOB    => 'blob',
                        SQLITE3_NULL    => 'null'
                );

                $retval = array();
                for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
                {
                        $retval[$i]                     = new stdClass();
                        $retval[$i]->name               = $this->result_id->columnName($i);

                        $type = $this->result_id->columnType($i);
                        $retval[$i]->type               = isset($data_types[$type]) ? $data_types[$type] : $type;

                        $retval[$i]->max_length         = NULL;
                }

                return $retval;
        }

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

        /**
         * Free the result
         *
         * @return      void
         */
        public function free_result()
        {
                if (is_object($this->result_id))
                {
                        $this->result_id->finalize();
                        $this->result_id = NULL;
                }
        }

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

        /**
         * Result - associative array
         *
         * Returns the result set as an array
         *
         * @return      array
         */
        protected function _fetch_assoc()
        {
                return $this->result_id->fetchArray(SQLITE3_ASSOC);
        }

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

        /**
         * Result - object
         *
         * Returns the result set as an object
         *
         * @param       string  $class_name
         * @return      object
         */
        protected function _fetch_object($class_name = 'stdClass')
        {
                // No native support for fetching rows as objects
                if (($row = $this->result_id->fetchArray(SQLITE3_ASSOC)) === FALSE)
                {
                        return FALSE;
                }
                elseif ($class_name === 'stdClass')
                {
                        return (object) $row;
                }

                $class_name = new $class_name();
                foreach (array_keys($row) as $key)
                {
                        $class_name->$key = $row[$key];
                }

                return $class_name;
        }

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

        /**
         * Data Seek
         *
         * Moves the internal pointer to the desired offset. We call
         * this internally before fetching results to make sure the
         * result set starts at zero.
         *
         * @param       int     $n      (ignored)
         * @return      array
         */
        public function data_seek($n = 0)
        {
                // Only resetting to the start of the result set is supported
                return ($n > 0) ? FALSE : $this->result_id->reset();
        }

}