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<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package             CodeIgniter
 * @author              ExpressionEngine Dev Team
 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license             http://codeigniter.com/user_guide/license.html
 * @link                http://codeigniter.com
 * @since               Version 1.0
 * @filesource
 */

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

/**
 * SQLSRV 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_sqlsrv_result extends CI_DB_result {

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

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

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

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

        /**
         * Fetch Field Names
         *
         * Generates an array of column names
         *
         * @access      public
         * @return      array
         */
        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
         *
         * @access      public
         * @return      array
         */
        function field_data()
        {
                $retval = array();
                foreach(sqlsrv_field_metadata($this->result_id) as $offset => $field)
                {
                        $F                              = new stdClass();
                        $F->name                = $field['Name'];
                        $F->type                = $field['Type'];
                        $F->max_length  = $field['Size'];
                        $F->primary_key = 0;
                        $F->default             = '';
                        
                        $retval[] = $F;
                }
                
                return $retval;
        }

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

        /**
         * Free the result
         *
         * @return      null
         */
        function free_result()
        {
                if (is_resource($this->result_id))
                {
                        sqlsrv_free_stmt($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)
        {
                // Not implemented
        }

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

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

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

        /**
         * Result - object
         *
         * Returns the result set as an object
         *
         * @access      private
         * @return      object
         */
        function _fetch_object()
        {
                return sqlsrv_fetch_object($this->result_id);
        }

}


/* End of file mssql_result.php */
/* Location: ./system/database/drivers/mssql/mssql_result.php */