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-rw-r--r--system/database/drivers/oci8/oci8_driver.php165
1 files changed, 35 insertions, 130 deletions
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 7bb43b5be..6f8b21d75 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -70,20 +70,6 @@ class CI_DB_oci8_driver extends CI_DB {
public $dbdriver = 'oci8';
/**
- * Statement ID
- *
- * @var resource
- */
- public $stmt_id;
-
- /**
- * Cursor ID
- *
- * @var resource
- */
- public $curs_id;
-
- /**
* Commit mode flag
*
* @var int
@@ -100,15 +86,27 @@ class CI_DB_oci8_driver extends CI_DB {
*/
public $limit_used = FALSE;
- // --------------------------------------------------------------------
+ /**
+ * Error cache
+ *
+ * Cached error info about failed queries.
+ * Used so that statement IDs can be released immediately.
+ *
+ * @var array|false
+ */
+ protected $_error = FALSE;
/**
- * Reset $stmt_id flag
+ * Affected rows
*
- * Used by stored_procedure() to prevent _execute() from
- * re-setting the statement ID.
+ * Cached result of oci_num_rows().
+ * Used so that statement IDs can be released immediately.
+ *
+ * @var int|false
*/
- protected $_reset_stmt_id = TRUE;
+ protected $_affected_rows = FALSE;
+
+ // --------------------------------------------------------------------
/**
* List of reserved identifiers
@@ -278,104 +276,19 @@ class CI_DB_oci8_driver extends CI_DB {
/* Oracle must parse the query before it is run. All of the actions with
* the query are based on the statement id returned by oci_parse().
*/
- if ($this->_reset_stmt_id === TRUE)
- {
- $this->stmt_id = oci_parse($this->conn_id, $sql);
- }
-
- oci_set_prefetch($this->stmt_id, 1000);
- return oci_execute($this->stmt_id, $this->commit_mode);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Get cursor. Returns a cursor from the database
- *
- * @return resource
- */
- public function get_cursor()
- {
- return $this->curs_id = oci_new_cursor($this->conn_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Stored Procedure. Executes a stored procedure
- *
- * @param string package name in which the stored procedure is in
- * @param string stored procedure name to execute
- * @param array parameters
- * @return mixed
- *
- * params array keys
- *
- * KEY OPTIONAL NOTES
- * name no the name of the parameter should be in :<param_name> format
- * value no the value of the parameter. If this is an OUT or IN OUT parameter,
- * this should be a reference to a variable
- * type yes the type of the parameter
- * length yes the max size of the parameter
- */
- public function stored_procedure($package, $procedure, array $params)
- {
- if ($package === '' OR $procedure === '')
- {
- log_message('error', 'Invalid query: '.$package.'.'.$procedure);
- return ($this->db_debug) ? $this->display_error('db_invalid_query') : FALSE;
- }
+ $this->result_id = oci_parse($this->conn_id, $sql);
+ oci_set_prefetch($this->result_id, 1000);
+ $result = oci_execute($this->result_id, $this->commit_mode);
+ $this->_error = oci_error($this->result_id);
+ $this->is_write_type($sql) && $this->_affected_rows = oci_num_rows($this->result_id);
- // Build the query string
- $sql = 'BEGIN '.$package.'.'.$procedure.'(';
-
- $have_cursor = FALSE;
- foreach ($params as $param)
+ if ($this->is_write_type($sql) OR $result === FALSE)
{
- $sql .= $param['name'].',';
-
- if (isset($param['type']) && $param['type'] === OCI_B_CURSOR)
- {
- $have_cursor = TRUE;
- }
+ oci_free_statement($this->result_id);
+ return $result;
}
- $sql = trim($sql, ',').'); END;';
-
- $this->_reset_stmt_id = FALSE;
- $this->stmt_id = oci_parse($this->conn_id, $sql);
- $this->_bind_params($params);
- $result = $this->query($sql, FALSE, $have_cursor);
- $this->_reset_stmt_id = TRUE;
- return $result;
- }
-
- // --------------------------------------------------------------------
- /**
- * Bind parameters
- *
- * @param array $params
- * @return void
- */
- protected function _bind_params($params)
- {
- if ( ! is_array($params) OR ! is_resource($this->stmt_id))
- {
- return;
- }
-
- foreach ($params as $param)
- {
- foreach (array('name', 'value', 'type', 'length') as $val)
- {
- if ( ! isset($param[$val]))
- {
- $param[$val] = '';
- }
- }
-
- oci_bind_by_name($this->stmt_id, $param['name'], $param['value'], $param['length'], $param['type']);
- }
+ return $this->result_id;
}
// --------------------------------------------------------------------
@@ -427,7 +340,7 @@ class CI_DB_oci8_driver extends CI_DB {
*/
public function affected_rows()
{
- return oci_num_rows($this->stmt_id);
+ return $this->_affected_rows;
}
// --------------------------------------------------------------------
@@ -560,18 +473,15 @@ class CI_DB_oci8_driver extends CI_DB {
*/
public function error()
{
+ if ( ! empty($this->_error))
+ {
+ return $this->_error;
+ }
+
// oci_error() returns an array that already contains
// 'code' and 'message' keys, but it can return false
// if there was no error ....
- if (is_resource($this->curs_id))
- {
- $error = oci_error($this->curs_id);
- }
- elseif (is_resource($this->stmt_id))
- {
- $error = oci_error($this->stmt_id);
- }
- elseif (is_resource($this->conn_id))
+ if (is_resource($this->conn_id))
{
$error = oci_error($this->conn_id);
}
@@ -683,14 +593,9 @@ class CI_DB_oci8_driver extends CI_DB {
*/
protected function _close()
{
- if (is_resource($this->curs_id))
- {
- oci_free_statement($this->curs_id);
- }
-
- if (is_resource($this->stmt_id))
+ if (is_resource($this->result_id))
{
- oci_free_statement($this->stmt_id);
+ oci_free_statement($this->result_id);
}
oci_close($this->conn_id);