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-rw-r--r--system/database/drivers/oci8/oci8_result.php479
1 files changed, 16 insertions, 463 deletions
diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php
index 7b05e0a43..a2b600e6c 100644
--- a/system/database/drivers/oci8/oci8_result.php
+++ b/system/database/drivers/oci8/oci8_result.php
@@ -33,6 +33,7 @@
* @category Database
* @author EllisLab Dev Team
* @link http://codeigniter.com/user_guide/database/
+ * @since 1.4.1
*/
class CI_DB_oci8_result extends CI_DB_result {
@@ -41,14 +42,16 @@ class CI_DB_oci8_result extends CI_DB_result {
public $limit_used;
public $commit_mode;
- /* Overwriting the parent here, so we have a way to know if it's
- * already called or not:
+ /**
+ * Constructor
+ *
+ * @param object
+ * @return void
*/
- public $num_rows;
-
public function __construct(&$driver_object)
{
parent::__construct($driver_object);
+
$this->stmt_id = $driver_object->stmt_id;
$this->curs_id = $driver_object->curs_id;
$this->limit_used = $driver_object->limit_used;
@@ -56,33 +59,6 @@ class CI_DB_oci8_result extends CI_DB_result {
$driver_object->stmt_id = FALSE;
}
- /**
- * Number of rows in the result set.
- *
- * Oracle doesn't have a graceful way to return the number of rows
- * so we have to use what amounts to a hack.
- *
- * @return int
- */
- public function num_rows()
- {
- if ( ! is_int($this->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());
- }
-
- return $this->num_rows;
- }
-
// --------------------------------------------------------------------
/**
@@ -191,450 +167,27 @@ class CI_DB_oci8_result extends CI_DB_result {
*
* Returns the result set as an object
*
+ * @param string
* @return object
*/
- protected function _fetch_object()
- {
- $id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
- return oci_fetch_object($id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. Array version.
- *
- * @return array
- */
- public function result_array()
+ protected function _fetch_object($class_name = 'stdClass')
{
- if (count($this->result_array) > 0)
- {
- return $this->result_array;
- }
- elseif (count($this->result_object) > 0)
- {
- for ($i = 0, $c = count($this->result_object); $i < $c; $i++)
- {
- $this->result_array[$i] = (array) $this->result_object[$i];
- }
-
- return $this->result_array;
- }
- elseif (is_array($this->row_data))
- {
- if (count($this->row_data) === 0)
- {
- return $this->result_array;
- }
- else
- {
- $row_index = count($this->row_data);
- }
- }
- else
- {
- $row_index = 0;
- $this->row_data = array();
- }
-
- $row = NULL;
- while ($row = $this->_fetch_assoc())
- {
- $this->row_data[$row_index++] = $row;
- }
-
- return $this->result_array = $this->row_data;
- }
+ $row = ($this->curs_id)
+ ? oci_fetch_object($this->curs_id)
+ : oci_fetch_object($this->stmt_id);
- // --------------------------------------------------------------------
-
- /**
- * Query result. "object" version.
- *
- * @return array
- */
- public function result_object()
- {
- if (count($this->result_object) > 0)
- {
- return $this->result_object;
- }
- elseif (count($this->result_array) > 0)
- {
- for ($i = 0, $c = count($this->result_array); $i < $c; $i++)
- {
- $this->result_object[] = (object) $this->result_array[$i];
- }
-
- return $this->result_object;
- }
- elseif (is_array($this->row_data))
- {
- if (count($this->row_data) === 0)
- {
- return $this->result_object;
- }
- else
- {
- $row_index = count($this->row_data);
- for ($i = 0; $i < $row_index; $i++)
- {
- $this->result_object[$i] = (object) $this->row_data[$i];
- }
- }
- }
- else
- {
- $row_index = 0;
- $this->row_data = array();
- }
-
- $row = NULL;
- while ($row = $this->_fetch_object())
- {
- $this->row_data[$row_index] = (array) $row;
- $this->result_object[$row_index++] = $row;
- }
-
- return $this->result_object;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. Custom object version.
- *
- * @param string class name used to instantiate rows to
- * @return array
- */
- public function custom_result_object($class_name)
- {
- if (isset($this->custom_result_object[$class_name]))
- {
- return $this->custom_result_object[$class_name];
- }
-
- if ( ! class_exists($class_name) OR $this->result_id === FALSE OR $this->num_rows() === 0)
- {
- return array();
- }
-
- /* Even if we didn't have result_array or result_object
- * set prior to custom_result_object() being called,
- * num_rows() has already done so.
- * Pass by reference, as we don't know how
- * large it might be and we don't want 1000 row
- * sets being copied.
- */
- if (count($this->result_array) > 0)
- {
- $data = &$this->result_array;
- }
- elseif (count($this->result_object) > 0)
- {
- $data = &$this->result_object;
- }
-
- $this->custom_result_object[$class_name] = array();
- for ($i = 0, $c = count($data); $i < $c; $i++)
- {
- $this->custom_result_object[$class_name][$i] = new $class_name();
- foreach ($data[$i] as $key => $value)
- {
- $this->custom_result_object[$class_name][$i]->$key = $value;
- }
- }
-
- return $this->custom_result_object[$class_name];
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result.
- *
- * Acts as a wrapper for row_object(), row_array()
- * and custom_row_object(). Also used by first_row(), next_row()
- * and previous_row().
- *
- * @param int row index
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function row($n = 0, $type = 'object')
- {
- if ($type === 'object')
- {
- return $this->row_object($n);
- }
- elseif ($type === 'array')
- {
- return $this->row_array($n);
- }
-
- return $this->custom_row_object($n, $type);
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result. Array version.
- *
- * @param int row index
- * @return array
- */
- public function row_array($n = 0)
- {
- // Make sure $n is not a string
- if ( ! is_int($n))
- {
- $n = (int) $n;
- }
-
- /* If row_data is initialized, it means that we've already tried
- * (at least) to fetch some data, so ... check if we already have
- * this row.
- */
- if (is_array($this->row_data))
- {
- /* If we already have row_data[$n] - return it.
- *
- * If we enter the elseif, there's a number of reasons to
- * return an empty array:
- *
- * - count($this->row_data) === 0 means there are no results
- * - num_rows being set, result_array and/or result_object
- * having count() > 0 means that we've already fetched all
- * data and $n is greater than our highest row index available
- * - $n < $this->current_row means that if such row existed,
- * we would've already returned it, therefore $n is an
- * invalid index
- */
- if (isset($this->row_data[$n])) // We already have this row
- {
- $this->current_row = $n;
- return $this->row_data[$n];
- }
- elseif (count($this->row_data) === 0 OR is_int($this->num_rows)
- OR count($this->result_array) > 0 OR count($this->result_object) > 0
- OR $n < $this->current_row)
- {
- // No such row exists
- return array();
- }
-
- // Get the next row index that would actually need to be fetched
- $current_row = ($this->current_row < count($this->row_data)) ? count($this->row_data) : $this->current_row + 1;
- }
- else
- {
- $current_row = $this->current_row = 0;
- $this->row_data = array();
- }
-
- /* Fetch more data, if available
- *
- * NOTE: Operator precedence is important here, if you change
- * 'AND' with '&&' - it WILL BREAK the results, as
- * $row will be assigned the scalar value of both
- * expressions!
- */
- while ($row = $this->_fetch_assoc() AND $current_row <= $n)
- {
- $this->row_data[$current_row++] = $row;
- }
-
- // This would mean that there's no (more) data to fetch
- if ( ! is_array($this->row_data) OR ! isset($this->row_data[$n]))
- {
- // Cache what we already have
- if (is_array($this->row_data))
- {
- $this->num_rows = count($this->row_data);
- /* Usually, row_data could have less elements than result_array,
- * but at this point - they should be exactly the same.
- */
- $this->result_array = $this->row_data;
- }
- else
- {
- $this->num_rows = 0;
- }
-
- return array();
- }
-
- $this->current_row = $n;
- return $this->row_data[$n];
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result. Object version.
- *
- * @param int row index
- * @return mixed object if row found; empty array if not
- */
- public function row_object($n = 0)
- {
- // Make sure $n is not a string
- if ( ! is_int($n))
- {
- $n = (int) $n;
- }
- /* Logic here is exactly the same as in row_array,
- * except we have to cast row_data[$n] to an object.
- *
- * If we already have result_object though - we can
- * directly return from it.
- */
- if (isset($this->result_object[$n]))
- {
- $this->current_row = $n;
- // Set this, if not already done.
- if ( ! is_int($this->num_rows))
- {
- $this->num_rows = count($this->result_object);
- }
-
- return $this->result_object[$n];
- }
-
- $row = $this->row_array($n);
- // Cast only if the row exists
- if (count($row) > 0)
- {
- $this->current_row = $n;
- return (object) $row;
- }
-
- return array();
- }
-
- // --------------------------------------------------------------------
-
- /* Single row result. Custom object version.
- *
- * @param int row index
- * @param string custom class name
- * @return mixed custom object if row found; empty array otherwise
- */
- public function custom_row_object($n = 0, $class_name)
- {
- // Make sure $n is not a string
- if ( ! is_int($n))
- {
- $n = (int) $n;
- }
-
- if (array_key_exists($class_name, $this->custom_result_object))
- {
- /* We already have a the whole result set with this class_name,
- * return the specified row if it exists, and an empty array if
- * it doesn't.
- */
- if (isset($this->custom_result_object[$class_name][$n]))
- {
- $this->current_row = $n;
- return $this->custom_result_object[$class_name][$n];
- }
- else
- {
- return array();
- }
- }
- elseif ( ! class_exists($class_name)) // No such class exists
- {
- return array();
- }
-
- $row = $this->row_array($n);
- // An array would mean that the row doesn't exist
- if (is_array($row))
+ if ($class_name === 'stdClass' OR ! $row)
{
return $row;
}
- // Convert to the desired class and return
- $row_object = new $class_name();
+ $class_name = new $class_name();
foreach ($row as $key => $value)
{
- $row_object->$key = $value;
+ $class_name->$key = $value;
}
- $this->current_row = $n;
- return $row_object;
- }
-
- // --------------------------------------------------------------------
-
- /* First row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function first_row($type = 'object')
- {
- return $this->row(0, $type);
- }
-
- // --------------------------------------------------------------------
-
- /* Last row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function last_row($type = 'object')
- {
- $result = &$this->result($type);
- if ( ! isset($this->num_rows))
- {
- $this->num_rows = count($result);
- }
- $this->current_row = $this->num_rows - 1;
- return $result[$this->current_row];
- }
-
- // --------------------------------------------------------------------
-
- /* Next row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function next_row($type = 'object')
- {
- if (is_array($this->row_data))
- {
- $count = count($this->row_data);
- if ($this->current_row > $count OR ($this->current_row === 0 && $count === 0))
- {
- $n = $count;
- }
- else
- {
- $n = $this->current_row + 1;
- }
- }
- else
- {
- $n = 0;
- }
-
- return $this->row($n, $type);
- }
-
- // --------------------------------------------------------------------
-
- /* Previous row result.
- *
- * @param string ('object', 'array' or a custom class name)
- * @return mixed whatever was passed to the second parameter
- */
- public function previous_row($type = 'object')
- {
- $n = ($this->current_row !== 0) ? $this->current_row - 1 : 0;
- return $this->row($n, $type);
+ return $class_name;
}
// --------------------------------------------------------------------