odbc_result.php

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<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 4.3.2 or newer
 *
 * @package             CodeIgniter
 * @author              ExpressionEngine Dev Team
 * @copyright   Copyright (c) 2008, EllisLab, Inc.
 * @license             http://codeigniter.com/user_guide/license.html
 * @link                http://codeigniter.com
 * @since               Version 1.0
 * @filesource
 */

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

/**
 * ODBC Result Class
 *
 * This class extends the parent result class: CI_DB_result
 *
 * @category    Database
 * @author              ExpressionEngine Dev Team
 * @link                http://codeigniter.com/user_guide/database/
 */
class CI_DB_odbc_result extends CI_DB_result {
        
        /**
         * Number of rows in the result set
         *
         * @access      public
         * @return      integer
         */
        function num_rows()
        {
                return @odbc_num_rows($this->result_id);
        }
        
        // --------------------------------------------------------------------

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

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

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

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

        /**
         * Field data
         *
         * Generates an array of objects containing field meta-data
         *
         * @access      public
         * @return      array
         */
        function field_data()
        {
                $retval = array();
                for ($i = 0; $i < $this->num_fields(); $i++)
                {
                        $F                              = new stdClass();
                        $F->name                = odbc_field_name($this->result_id, $i);
                        $F->type                = odbc_field_type($this->result_id, $i);
                        $F->max_length  = odbc_field_len($this->result_id, $i);
                        $F->primary_key = 0;
                        $F->default             = '';

                        $retval[] = $F;
                }
                
                return $retval;
        }

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

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

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

        /**
         * 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
         *
         * @access      private
         * @return      array
         */
        function _data_seek($n = 0)
        {
                return FALSE;
        }

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

        /**
         * Result - associative array
         *
         * Returns the result set as an array
         *
         * @access      private
         * @return      array
         */
        function _fetch_assoc()
        {
                if (function_exists('odbc_fetch_object'))
                {
                        return odbc_fetch_array($this->result_id);
                }
                else
                {
                        return $this->_odbc_fetch_array($this->result_id);
                }
        }

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

        /**
         * Result - object
         *
         * Returns the result set as an object
         *
         * @access      private
         * @return      object
         */
        function _fetch_object()
        {
                if (function_exists('odbc_fetch_object'))
                {
                        return odbc_fetch_object($this->result_id);
                }
                else
                {
                        return $this->_odbc_fetch_object($this->result_id);
                }
        }


        /**
         * Result - object
         *
         * subsititutes the odbc_fetch_object function when
         * not available (odbc_fetch_object requires unixODBC)
         *
         * @access      private
         * @return      object
         */
        function _odbc_fetch_object(& $odbc_result) {
                $rs = array();
                $rs_obj = false;
                if (odbc_fetch_into($odbc_result, $rs)) {
                        foreach ($rs as $k=>$v) {
                                $field_name= odbc_field_name($odbc_result, $k+1);
                                $rs_obj->$field_name = $v;
                        }
                }
                return $rs_obj;
        }


        /**
         * Result - array
         *
         * subsititutes the odbc_fetch_array function when
         * not available (odbc_fetch_array requires unixODBC)
         *
         * @access      private
         * @return      array
         */
        function _odbc_fetch_array(& $odbc_result) {
                $rs = array();
                $rs_assoc = false;
                if (odbc_fetch_into($odbc_result, $rs)) {
                        $rs_assoc=array();
                        foreach ($rs as $k=>$v) {
                                $field_name= odbc_field_name($odbc_result, $k+1);
                                $rs_assoc[$field_name] = $v;
                        }
                }
                return $rs_assoc;
        }

}


/* End of file odbc_result.php */
/* Location: ./system/database/drivers/odbc/odbc_result.php */