odbc_result.php 5.56 KB
Newer Older
Phạm Văn Đoan committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259
<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.2.4 or newer
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the Open Software License version 3.0
 *
 * This source file is subject to the Open Software License (OSL 3.0) that is
 * bundled with this package in the files license.txt / license.rst.  It is
 * also available through the world wide web at this URL:
 * http://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to obtain it
 * through the world wide web, please send an email to
 * licensing@ellislab.com so we can send you a copy immediately.
 *
 * @package		CodeIgniter
 * @author		EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
 * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * ODBC Result Class
 *
 * This class extends the parent result class: CI_DB_result
 *
 * @category	Database
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/database/
 * @since	1.3
 */
class CI_DB_odbc_result extends CI_DB_result {

	/**
	 * Number of rows in the result set
	 *
	 * @return	int
	 */
	public function num_rows()
	{
		if (is_int($this->num_rows))
		{
			return $this->num_rows;
		}
		elseif (($this->num_rows = odbc_num_rows($this->result_id)) !== -1)
		{
			return $this->num_rows;
		}

		// Work-around for ODBC subdrivers that don't support num_rows()
		if (count($this->result_array) > 0)
		{
			return $this->num_rows = count($this->result_array);
		}
		elseif (count($this->result_object) > 0)
		{
			return $this->num_rows = count($this->result_object);
		}

		return $this->num_rows = count($this->result_array());
	}

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

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

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

	/**
	 * Fetch Field Names
	 *
	 * Generates an array of column names
	 *
	 * @return	array
	 */
	public function list_fields()
	{
		$field_names = array();
		$num_fields = $this->num_fields();

		if ($num_fields > 0)
		{
			for ($i = 1; $i <= $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
	 *
	 * @return	array
	 */
	public function field_data()
	{
		$retval = array();
		for ($i = 0, $odbc_index = 1, $c = $this->num_fields(); $i < $c; $i++, $odbc_index++)
		{
			$retval[$i]			= new stdClass();
			$retval[$i]->name		= odbc_field_name($this->result_id, $odbc_index);
			$retval[$i]->type		= odbc_field_type($this->result_id, $odbc_index);
			$retval[$i]->max_length		= odbc_field_len($this->result_id, $odbc_index);
			$retval[$i]->primary_key	= 0;
			$retval[$i]->default		= '';
		}

		return $retval;
	}

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

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

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

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

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

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

}

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

if ( ! function_exists('odbc_fetch_array'))
{
	/**
	 * ODBC Fetch array
	 *
	 * Emulates the native odbc_fetch_array() function when
	 * it is not available (odbc_fetch_array() requires unixODBC)
	 *
	 * @param	resource	&$result
	 * @param	int		$rownumber
	 * @return	array
	 */
	function odbc_fetch_array(&$result, $rownumber = 1)
	{
		$rs = array();
		if ( ! odbc_fetch_into($result, $rs, $rownumber))
		{
			return FALSE;
		}

		$rs_assoc = array();
		foreach ($rs as $k => $v)
		{
			$field_name = odbc_field_name($result, $k+1);
			$rs_assoc[$field_name] = $v;
		}

		return $rs_assoc;
	}
}

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

if ( ! function_exists('odbc_fetch_object'))
{
	/**
	 * ODBC Fetch object
	 *
	 * Emulates the native odbc_fetch_object() function when
	 * it is not available.
	 *
	 * @param	resource	&$result
	 * @param	int		$rownumber
	 * @return	object
	 */
	function odbc_fetch_object(&$result, $rownumber = 1)
	{
		$rs = array();
		if ( ! odbc_fetch_into($result, $rs, $rownumber))
		{
			return FALSE;
		}

		$rs_object = new stdClass();
		foreach ($rs as $k => $v)
		{
			$field_name = odbc_field_name($result, $k+1);
			$rs_object->$field_name = $v;
		}

		return $rs_object;
	}
}

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