/halogy/database/drivers/oci8/oci8_result.php

  1<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
  2/**
  3 * CodeIgniter
  4 *
  5 * An open source application development framework for PHP 4.3.2 or newer
  6 *
  7 * @package	 	CodeIgniter
  8 * @author	 	ExpressionEngine Dev Team
  9 * @copyright   Copyright (c) 2008 - 2009, EllisLab, Inc.
 10 * @license	 	http://codeigniter.com/user_guide/license.html
 11 * @link		http://codeigniter.com
 12 * @since	   	Version 1.0
 13 * @filesource
 14 */
 15
 16// ------------------------------------------------------------------------
 17
 18/**
 19 * oci8 Result Class
 20 *
 21 * This class extends the parent result class: CI_DB_result
 22 *
 23 * @category	Database
 24 * @author	 	ExpressionEngine Dev Team
 25 * @link		http://codeigniter.com/user_guide/database/
 26 */
 27class CI_DB_oci8_result extends CI_DB_result {
 28
 29	var $stmt_id;
 30	var $curs_id;
 31	var $limit_used;
 32
 33	/**
 34	 * Number of rows in the result set.
 35	 *
 36	 * Oracle doesn't have a graceful way to retun the number of rows
 37	 * so we have to use what amounts to a hack.
 38	 * 
 39	 *
 40	 * @access  public
 41	 * @return  integer
 42	 */
 43	function num_rows()
 44	{
 45		$rowcount = count($this->result_array());
 46		@ociexecute($this->stmt_id);
 47
 48		if ($this->curs_id)
 49		{
 50			@ociexecute($this->curs_id);
 51		}
 52
 53		return $rowcount;
 54	}
 55
 56	// --------------------------------------------------------------------
 57
 58	/**
 59	 * Number of fields in the result set
 60	 *
 61	 * @access  public
 62	 * @return  integer
 63	 */
 64	function num_fields()
 65	{
 66		$count = @ocinumcols($this->stmt_id);
 67
 68		// if we used a limit we subtract it
 69		if ($this->limit_used)
 70		{
 71			$count = $count - 1;
 72		}
 73
 74		return $count;
 75	}
 76
 77	// --------------------------------------------------------------------
 78
 79	/**
 80	 * Fetch Field Names
 81	 *
 82	 * Generates an array of column names
 83	 *
 84	 * @access	public
 85	 * @return	array
 86	 */
 87	function list_fields()
 88	{
 89		$field_names = array();
 90		$fieldCount = $this->num_fields();
 91		for ($c = 1; $c <= $fieldCount; $c++)
 92		{
 93			$field_names[] = ocicolumnname($this->stmt_id, $c);
 94		}
 95		return $field_names;
 96	}
 97
 98	// --------------------------------------------------------------------
 99
100	/**
101	 * Field data
102	 *
103	 * Generates an array of objects containing field meta-data
104	 *
105	 * @access  public
106	 * @return  array
107	 */
108	function field_data()
109	{
110		$retval = array();
111		$fieldCount = $this->num_fields();
112		for ($c = 1; $c <= $fieldCount; $c++)
113		{
114			$F			  = new stdClass();
115			$F->name		= ocicolumnname($this->stmt_id, $c);
116			$F->type		= ocicolumntype($this->stmt_id, $c);
117			$F->max_length  = ocicolumnsize($this->stmt_id, $c);
118
119			$retval[] = $F;
120		}
121
122		return $retval;
123	}
124
125	// --------------------------------------------------------------------
126
127	/**
128	 * Free the result
129	 *
130	 * @return	null
131	 */		
132	function free_result()
133	{
134		if (is_resource($this->result_id))
135		{
136			ocifreestatement($this->result_id);			
137			$this->result_id = FALSE;
138		}
139	}
140
141	// --------------------------------------------------------------------
142
143	/**
144	 * Result - associative array
145	 *
146	 * Returns the result set as an array
147	 *
148	 * @access  private
149	 * @return  array
150	 */
151	function _fetch_assoc(&$row)
152	{
153		$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
154	
155		return ocifetchinto($id, $row, OCI_ASSOC + OCI_RETURN_NULLS);	
156	}
157
158	// --------------------------------------------------------------------
159
160	/**
161	 * Result - object
162	 *
163	 * Returns the result set as an object
164	 *
165	 * @access  private
166	 * @return  object
167	 */
168	function _fetch_object()
169	{	
170		$result = array();
171
172		// If PHP 5 is being used we can fetch an result object
173		if (function_exists('oci_fetch_object'))
174		{
175			$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
176			
177			return @oci_fetch_object($id);
178		}
179		
180		// If PHP 4 is being used we have to build our own result
181		foreach ($this->result_array() as $key => $val)
182		{
183			$obj = new stdClass();
184			if (is_array($val))
185			{
186				foreach ($val as $k => $v)
187				{
188					$obj->$k = $v;
189				}
190			}
191			else
192			{
193				$obj->$key = $val;
194			}
195			
196			$result[] = $obj;
197		}
198
199		return $result;
200	}
201
202	// --------------------------------------------------------------------
203
204	/**
205	 * Query result.  "array" version.
206	 *
207	 * @access  public
208	 * @return  array
209	 */
210	function result_array()
211	{
212		if (count($this->result_array) > 0)
213		{
214			return $this->result_array;
215		}
216
217		// oracle's fetch functions do not return arrays.
218		// The information is returned in reference parameters
219		$row = NULL;
220		while ($this->_fetch_assoc($row))
221		{
222			$this->result_array[] = $row;
223		}
224
225		return $this->result_array;
226	}
227
228	// --------------------------------------------------------------------
229
230	/**
231	 * Data Seek
232	 *
233	 * Moves the internal pointer to the desired offset.  We call
234	 * this internally before fetching results to make sure the
235	 * result set starts at zero
236	 *
237	 * @access	private
238	 * @return	array
239	 */
240	function _data_seek($n = 0)
241	{
242		return FALSE; // Not needed
243	}
244
245}
246
247
248/* End of file oci8_result.php */
249/* Location: ./system/database/drivers/oci8/oci8_result.php */