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authorEric Roberts <eric@cryode.com>2012-12-12 14:02:11 +0100
committerEric Roberts <eric@cryode.com>2012-12-12 14:02:11 +0100
commitb9e35f21e1c70b6aa67c47e9244ed83195abc00a (patch)
tree64f82db362deeac48cc20d1d1afd80651f36f5a5 /system/database/drivers/oci8
parent0b05705c52c3bca7f9b3aee657c888e8ad1ff422 (diff)
parent545a7c86701875e1412bcde316e9bcc76d9a23a0 (diff)
Merge branch 'refs/heads/develop' into feature/form_error_msgs
Conflicts: system/language/english/form_validation_lang.php user_guide_src/source/libraries/form_validation.rst Signed-off-by: Eric Roberts <eric@cryode.com>
Diffstat (limited to 'system/database/drivers/oci8')
-rw-r--r--system/database/drivers/oci8/oci8_driver.php305
-rw-r--r--system/database/drivers/oci8/oci8_forge.php146
-rw-r--r--system/database/drivers/oci8/oci8_result.php566
-rw-r--r--system/database/drivers/oci8/oci8_utility.php14
4 files changed, 305 insertions, 726 deletions
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 1b66178c6..706211a01 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,12 +24,13 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* oci8 Database Adapter Class
*
* Note: _DB is an extender class that the app controller
- * creates dynamically based on whether the active record
+ * creates dynamically based on whether the query builder
* class is being used or not.
*
* @package CodeIgniter
@@ -49,34 +50,80 @@
*/
class CI_DB_oci8_driver extends CI_DB {
+ /**
+ * Database driver
+ *
+ * @var string
+ */
public $dbdriver = 'oci8';
- // The character used for excaping
- protected $_escape_char = '"';
-
- // clause and character used for LIKE escape sequences
- protected $_like_escape_str = " ESCAPE '%s' ";
- protected $_like_escape_chr = '!';
+ /**
+ * Statement ID
+ *
+ * @var resource
+ */
+ public $stmt_id;
/**
- * The syntax to count rows is slightly different across different
- * database engines, so this string appears in each driver and is
- * used for the count_all() and count_all_results() functions.
+ * Cursor ID
+ *
+ * @var resource
*/
- protected $_count_string = 'SELECT COUNT(1) AS ';
- protected $_random_keyword = ' ASC'; // not currently supported
+ public $curs_id;
- // Set "auto commit" by default
+ /**
+ * Commit mode flag
+ *
+ * @var int
+ */
public $commit_mode = OCI_COMMIT_ON_SUCCESS;
- // need to track statement id and cursor id
- public $stmt_id;
- public $curs_id;
-
- // if we use a limit, we will add a field that will
- // throw off num_fields later
+ /**
+ * Limit used flag
+ *
+ * If we use LIMIT, we'll add a field that will
+ * throw off num_fields later.
+ *
+ * @var bool
+ */
public $limit_used;
+ // --------------------------------------------------------------------
+
+ /**
+ * List of reserved identifiers
+ *
+ * Identifiers that must NOT be escaped.
+ *
+ * @var string[]
+ */
+ protected $_reserved_identifiers = array('*', 'rownum');
+
+ /**
+ * ORDER BY random keyword
+ *
+ * @var array
+ */
+ protected $_random_keyword = array('ASC', 'ASC'); // not currently supported
+
+ /**
+ * COUNT string
+ *
+ * @used-by CI_DB_driver::count_all()
+ * @used-by CI_DB_query_builder::count_all_results()
+ *
+ * @var string
+ */
+ protected $_count_string = 'SELECT COUNT(1) AS ';
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Class constructor
+ *
+ * @param array $params
+ * @return void
+ */
public function __construct($params)
{
parent::__construct($params);
@@ -156,6 +203,8 @@ class CI_DB_oci8_driver extends CI_DB {
$this->dsn = '';
}
+ // --------------------------------------------------------------------
+
/**
* Non-persistent database connection
*
@@ -177,9 +226,9 @@ class CI_DB_oci8_driver extends CI_DB {
*/
public function db_pconnect()
{
- return ( ! empty($this->char_set))
- ? @oci_pconnect($this->username, $this->password, $this->dsn, $this->char_set)
- : @oci_pconnect($this->username, $this->password, $this->dsn);
+ return empty($this->char_set)
+ ? @oci_pconnect($this->username, $this->password, $this->dsn)
+ : @oci_pconnect($this->username, $this->password, $this->dsn, $this->char_set);
}
// --------------------------------------------------------------------
@@ -191,9 +240,21 @@ class CI_DB_oci8_driver extends CI_DB {
*/
public function version()
{
- return isset($this->data_cache['version'])
- ? $this->data_cache['version']
- : $this->data_cache['version'] = oci_server_version($this->conn_id);
+ if (isset($this->data_cache['version']))
+ {
+ return $this->data_cache['version'];
+ }
+ elseif ( ! $this->conn_id)
+ {
+ $this->initialize();
+ }
+
+ if ( ! $this->conn_id OR ($version = oci_server_version($this->conn_id)) === FALSE)
+ {
+ return FALSE;
+ }
+
+ return $this->data_cache['version'] = $version;
}
// --------------------------------------------------------------------
@@ -201,7 +262,7 @@ class CI_DB_oci8_driver extends CI_DB {
/**
* Execute the query
*
- * @param string an SQL query
+ * @param string $sql an SQL query
* @return resource
*/
protected function _execute($sql)
@@ -215,10 +276,12 @@ class CI_DB_oci8_driver extends CI_DB {
return @oci_execute($this->stmt_id, $this->commit_mode);
}
+ // --------------------------------------------------------------------
+
/**
* Generate a statement ID
*
- * @param string an SQL query
+ * @param string $sql an SQL query
* @return void
*/
protected function _set_stmt_id($sql)
@@ -234,7 +297,7 @@ class CI_DB_oci8_driver extends CI_DB {
/**
* Get cursor. Returns a cursor from the database
*
- * @return cursor id
+ * @return resource
*/
public function get_cursor()
{
@@ -262,7 +325,7 @@ class CI_DB_oci8_driver extends CI_DB {
*/
public function stored_procedure($package, $procedure, $params)
{
- if ($package == '' OR $procedure == '' OR ! is_array($params))
+ if ($package === '' OR $procedure === '' OR ! is_array($params))
{
if ($this->db_debug)
{
@@ -298,6 +361,7 @@ class CI_DB_oci8_driver extends CI_DB {
/**
* Bind parameters
*
+ * @param array $params
* @return void
*/
protected function _bind_params($params)
@@ -326,6 +390,7 @@ class CI_DB_oci8_driver extends CI_DB {
/**
* Begin Transaction
*
+ * @param bool $test_mode
* @return bool
*/
public function trans_begin($test_mode = FALSE)
@@ -398,8 +463,8 @@ class CI_DB_oci8_driver extends CI_DB {
/**
* Escape String
*
- * @param string
- * @param bool whether or not the string will be used in a LIKE condition
+ * @param string $str
+ * @param bool $like Whether or not the string will be used in a LIKE condition
* @return string
*/
public function escape_str($str, $like = FALSE)
@@ -455,49 +520,21 @@ class CI_DB_oci8_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * "Count All" query
- *
- * Generates a platform-specific query string that counts all records in
- * the specified database
- *
- * @param string
- * @return int
- */
- public function count_all($table = '')
- {
- if ($table == '')
- {
- return 0;
- }
-
- $query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
- if ($query == FALSE)
- {
- return 0;
- }
-
- $row = $query->row();
- $this->_reset_select();
- return (int) $row->numrows;
- }
-
- // --------------------------------------------------------------------
-
- /**
* Show table query
*
* Generates a platform-specific query string so that the table names can be fetched
*
- * @param bool
+ * @param bool $prefix_limit
* @return string
*/
protected function _list_tables($prefix_limit = FALSE)
{
- $sql = 'SELECT TABLE_NAME FROM ALL_TABLES';
+ $sql = 'SELECT "TABLE_NAME" FROM "ALL_TABLES"';
- if ($prefix_limit !== FALSE && $this->dbprefix != '')
+ if ($prefix_limit !== FALSE && $this->dbprefix !== '')
{
- return $sql." WHERE TABLE_NAME LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ return $sql.' WHERE "TABLE_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
}
return $sql;
@@ -510,27 +547,83 @@ class CI_DB_oci8_driver extends CI_DB {
*
* Generates a platform-specific query string so that the column names can be fetched
*
- * @param string the table name
+ * @param string $table
* @return string
*/
protected function _list_columns($table = '')
{
- return 'SELECT COLUMN_NAME FROM all_tab_columns WHERE table_name = \''.$table.'\'';
+ if (strpos($table, '.') !== FALSE)
+ {
+ sscanf($table, '%[^.].%s', $owner, $table);
+ }
+ else
+ {
+ $owner = $this->username;
+ }
+
+ return 'SELECT COLUMN_NAME FROM ALL_TAB_COLUMNS
+ WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).'
+ AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
}
// --------------------------------------------------------------------
/**
- * Field data query
- *
- * Generates a platform-specific query so that the column data can be retrieved
+ * Returns an object with field data
*
- * @param string the table name
- * @return string
+ * @param string $table
+ * @return array
*/
- protected function _field_data($table)
+ public function field_data($table = '')
{
- return 'SELECT * FROM '.$table.' WHERE rownum = 1';
+ if ($table === '')
+ {
+ return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
+ }
+ elseif (strpos($table, '.') !== FALSE)
+ {
+ sscanf($table, '%[^.].%s', $owner, $table);
+ }
+ else
+ {
+ $owner = $this->username;
+ }
+
+ $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHAR_LENGTH, DATA_PRECISION, DATA_LENGTH, DATA_DEFAULT, NULLABLE
+ FROM ALL_TAB_COLUMNS
+ WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).'
+ AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
+
+ if (($query = $this->query($sql)) === FALSE)
+ {
+ return FALSE;
+ }
+ $query = $query->result_object();
+
+ $retval = array();
+ for ($i = 0, $c = count($query); $i < $c; $i++)
+ {
+ $retval[$i] = new stdClass();
+ $retval[$i]->name = $query[$i]->COLUMN_NAME;
+ $retval[$i]->type = $query[$i]->DATA_TYPE;
+
+ $length = ($query[$i]->CHAR_LENGTH > 0)
+ ? $query[$i]->CHAR_LENGTH : $query[$i]->DATA_PRECISION;
+ if ($length === NULL)
+ {
+ $length = $query[$i]->DATA_LENGTH;
+ }
+ $retval[$i]->max_length = $length;
+
+ $default = $query[$i]->DATA_DEFAULT;
+ if ($default === NULL && $query[$i]->NULLABLE === 'N')
+ {
+ $default = '';
+ }
+ $retval[$i]->default = $query[$i]->COLUMN_DEFAULT;
+ }
+
+ return $retval;
}
// --------------------------------------------------------------------
@@ -567,29 +660,13 @@ class CI_DB_oci8_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * From Tables
- *
- * This function implicitly groups FROM tables so there is no confusion
- * about operator precedence in harmony with SQL standards
- *
- * @param array
- * @return string
- */
- protected function _from_tables($tables)
- {
- return is_array($tables) ? implode(', ', $tables) : $tables;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Insert_batch statement
+ * Insert batch statement
*
* Generates a platform-specific insert string from the supplied data
*
- * @param string the table name
- * @param array the insert keys
- * @param array the insert values
+ * @param string $table Table name
+ * @param array $keys INSERT keys
+ * @param array $values INSERT values
* @return string
*/
protected function _insert_batch($table, $keys, $values)
@@ -612,10 +689,10 @@ class CI_DB_oci8_driver extends CI_DB {
*
* Generates a platform-specific truncate string from the supplied data
*
- * If the database does not support the truncate() command,
+ * If the database does not support the TRUNCATE statement,
* then this method maps to 'DELETE FROM table'
*
- * @param string the table name
+ * @param string $table
* @return string
*/
protected function _truncate($table)
@@ -630,40 +707,35 @@ class CI_DB_oci8_driver extends CI_DB {
*
* Generates a platform-specific delete string from the supplied data
*
- * @param string the table name
- * @param array the where clause
- * @param array the like clause
- * @param string the limit clause
+ * @param string $table
* @return string
*/
- protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ protected function _delete($table)
{
- $conditions = array();
-
- empty($where) OR $conditions[] = implode(' ', $where);
- empty($like) OR $conditions[] = implode(' ', $like);
- empty($limit) OR $conditions[] = 'rownum <= '.$limit;
+ if ($this->qb_limit)
+ {
+ $this->where('rownum <= ',$this->qb_limit, FALSE);
+ $this->qb_limit = FALSE;
+ }
- return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : '');
+ return parent::_delete($table);
}
// --------------------------------------------------------------------
/**
- * Limit string
+ * LIMIT
*
* Generates a platform-specific LIMIT clause
*
- * @param string the sql query string
- * @param int the number of rows to limit the query to
- * @param int the offset value
+ * @param string $sql SQL Query
* @return string
*/
- protected function _limit($sql, $limit, $offset)
+ protected function _limit($sql)
{
$this->limit_used = TRUE;
- return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit).')'
- .($offset != 0 ? ' WHERE rnum >= '.$offset : '');
+ return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')'
+ .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1): '');
}
// --------------------------------------------------------------------
@@ -671,12 +743,11 @@ class CI_DB_oci8_driver extends CI_DB {
/**
* Close DB Connection
*
- * @param resource
* @return void
*/
- protected function _close($conn_id)
+ protected function _close()
{
- @oci_close($conn_id);
+ @oci_close($this->conn_id);
}
}
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index bd265b6e0..a0efa95ea 100644
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* Oracle Forge Class
@@ -34,117 +35,96 @@
*/
class CI_DB_oci8_forge extends CI_DB_forge {
+ /**
+ * CREATE DATABASE statement
+ *
+ * @var string
+ */
protected $_create_database = FALSE;
+
+ /**
+ * DROP DATABASE statement
+ *
+ * @var string
+ */
protected $_drop_database = FALSE;
- protected $_drop_table = 'DROP TABLE %s';
/**
- * Create Table
+ * DROP TABLE IF statement
*
- * @param string the table name
- * @param array the fields
- * @param mixed primary key(s)
- * @param mixed key(s)
- * @param bool should 'IF NOT EXISTS' be added to the SQL
- * @return string
+ * @var string
*/
- protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
- {
- $sql = 'CREATE TABLE ';
+ protected $_drop_table_if = FALSE;
- if ($if_not_exists === TRUE)
- {
- $sql .= 'IF NOT EXISTS ';
- }
+ /**
+ * UNSIGNED support
+ *
+ * @var bool|array
+ */
+ protected $_unsigned = FALSE;
- $sql .= $this->db->escape_identifiers($table).' (';
- $current_field_count = 0;
+ // --------------------------------------------------------------------
- foreach ($fields as $field => $attributes)
+ /**
+ * ALTER TABLE
+ *
+ * @param string $alter_type ALTER type
+ * @param string $table Table name
+ * @param mixed $field Column definition
+ * @return string|string[]
+ */
+ protected function _alter_table($alter_type, $table, $field)
+ {
+ if ($alter_type === 'DROP')
{
- // Numeric field names aren't allowed in databases, so if the key is
- // numeric, we know it was assigned by PHP and the developer manually
- // entered the field information, so we'll simply add it to the list
- if (is_numeric($field))
- {
- $sql .= "\n\t".$attributes;
- }
- else
- {
- $attributes = array_change_key_case($attributes, CASE_UPPER);
-
- $sql .= "\n\t".$this->db->protect_identifiers($field).' '.$attributes['TYPE']
- .((isset($attributes['UNSINGED']) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '')
- .(isset($attributes['DEFAULT']) ? " DEFAULT '".$attributes['DEFAULT']."'" : '')
- .((isset($attributes['NULL']) && $attributes['NULL'] === TRUE) ? '' : ' NOT NULL')
- .(isset($attributes['CONSTRAINT']) ? ' CONSTRAINT '.$attributes['CONSTRAINT'] : '');
- }
-
- // don't add a comma on the end of the last field
- if (++$current_field_count < count($fields))
- {
- $sql .= ',';
- }
+ return parent::_alter_table($alter_type, $table, $field);
}
-
- if (count($primary_keys) > 0)
+ elseif ($alter_type === 'CHANGE')
{
- $primary_keys = $this->db->protect_identifiers($primary_keys);
- $sql .= ",\n\tCONSTRAINT ".$table.' PRIMARY KEY ('.implode(', ', $primary_keys).')';
+ $alter_type = 'MODIFY';
}
- if (is_array($keys) && count($keys) > 0)
+ $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table);
+ $sqls = array();
+ for ($i = 0, $c = count($field); $i < $c; $i++)
{
- foreach ($keys as $key)
+ if ($field[$i]['_literal'] !== FALSE)
{
- if (is_array($key))
- {
- $key = $this->db->protect_identifiers($key);
- }
- else
+ $field[$i] = "\n\t".$field[$i]['_literal'];
+ }
+ else
+ {
+ $field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]);
+ if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name']))
{
- $key = array($this->db->protect_identifiers($key));
+ $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name'])
+ .' '.$this->db->escape_identifiers($field[$i]['new_name']);
}
-
- $sql .= ",\n\tUNIQUE COLUMNS (".implode(', ', $key).')';
}
}
- return $sql."\n)";
+ $sql .= ' '.$alter_type.' ';
+ $sql .= (count($field) === 1)
+ ? $field[0]
+ : '('.implode(',', $field).')';
+
+ // RENAME COLUMN must be executed after MODIFY
+ array_unshift($sqls, $sql);
+ return $sql;
}
// --------------------------------------------------------------------
/**
- * Alter table query
+ * Field attribute AUTO_INCREMENT
*
- * Generates a platform-specific query so that a table can be altered
- * Called by add_column(), drop_column(), and column_alter(),
- *
- * @param string the ALTER type (ADD, DROP, CHANGE)
- * @param string the column name
- * @param string the table name
- * @param string the column definition
- * @param string the default value
- * @param bool should 'NOT NULL' be added
- * @param string the field after which we should add the new field
- * @return string
+ * @param array &$attributes
+ * @param array &$field
+ * @return void
*/
- protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+ protected function _attr_auto_increment(&$attributes, &$field)
{
- $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
-
- // DROP has everything it needs now.
- if ($alter_type === 'DROP')
- {
- return $sql;
- }
-
- return $sql.' '.$column_definition
- .($default_value != '' ? ' DEFAULT "'.$default_value.'"' : '')
- .($null === NULL ? ' NULL' : ' NOT NULL')
- .($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
-
+ // Not supported - sequences and triggers must be used instead
}
}
diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php
index 7b05e0a43..84d46f82a 100644
--- a/system/database/drivers/oci8/oci8_result.php
+++ b/system/database/drivers/oci8/oci8_result.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* oci8 Result Class
@@ -33,22 +34,50 @@
* @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 {
+ /**
+ * Statement ID
+ *
+ * @var resource
+ */
public $stmt_id;
+
+ /**
+ * Cursor ID
+ *
+ * @var resource
+ */
public $curs_id;
+
+ /**
+ * Limit used flag
+ *
+ * @var bool
+ */
public $limit_used;
- public $commit_mode;
- /* Overwriting the parent here, so we have a way to know if it's
- * already called or not:
+ /**
+ * Commit mode flag
+ *
+ * @var int
*/
- public $num_rows;
+ public $commit_mode;
+
+ // --------------------------------------------------------------------
+ /**
+ * Class constructor
+ *
+ * @param object &$driver_object
+ * @return void
+ */
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 +85,6 @@ 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;
- }
-
// --------------------------------------------------------------------
/**
@@ -181,7 +183,7 @@ class CI_DB_oci8_result extends CI_DB_result {
protected function _fetch_assoc()
{
$id = ($this->curs_id) ? $this->curs_id : $this->stmt_id;
- return oci_fetch_assoc($id);
+ return @oci_fetch_assoc($id);
}
// --------------------------------------------------------------------
@@ -191,507 +193,27 @@ class CI_DB_oci8_result extends CI_DB_result {
*
* Returns the result set as an object
*
+ * @param string $class_name
* @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()
- {
- 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 = $this->row_data;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Query result. "object" version.
- *
- * @return array
- */
- public function result_object()
- {
- if (count($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)
+ protected function _fetch_object($class_name = 'stdClass')
{
- if (isset($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;
- }
+ $row = ($this->curs_id)
+ ? oci_fetch_object($this->curs_id)
+ : oci_fetch_object($this->stmt_id);
- $this->custom_result_object[$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;
- }
-
- $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, $type);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Data Seek
- *
- * Moves the internal pointer to the desired offset. We call
- * this internally before fetching results to make sure the
- * result set starts at zero.
- *
- * Oracle's PHP extension doesn't have an easy way of doing this
- * and the only workaround is to (re)execute the statement or cursor
- * in order to go to the first (zero) index of the result set.
- * Then, we would need to "dummy" fetch ($n - 1) rows to get to the
- * right one.
- *
- * This is as ridiculous as it sounds and it's the reason why every
- * other method that is fetching data tries to use an already "cached"
- * result set. Keeping this just in case it becomes needed at
- * some point in the future, but it will only work for resetting the
- * pointer to zero.
- *
- * @return bool
- */
- protected function _data_seek()
- {
- /* The PHP manual says that if OCI_NO_AUTO_COMMIT mode
- * is used, and oci_rollback() and/or oci_commit() are
- * not subsequently called - this will cause an unnecessary
- * rollback to be triggered at the end of the script execution.
- *
- * Therefore we'll try to avoid using that mode flag
- * if we're not currently in the middle of a transaction.
- */
- if ($this->commit_mode !== OCI_COMMIT_ON_SUCCESS)
- {
- $result = @oci_execute($this->stmt_id, $this->commit_mode);
- }
- else
- {
- $result = @oci_execute($this->stmt_id);
- }
-
- if ($result && $this->curs_id)
- {
- if ($this->commit_mode !== OCI_COMMIT_ON_SUCCESS)
- {
- return @oci_execute($this->curs_id, $this->commit_mode);
- }
- else
- {
- return @oci_execute($this->curs_id);
- }
+ $class_name->$key = $value;
}
- return $result;
+ return $class_name;
}
}
diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php
index 0183eda26..d15537fdf 100644
--- a/system/database/drivers/oci8/oci8_utility.php
+++ b/system/database/drivers/oci8/oci8_utility.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* Oracle Utility Class
@@ -34,18 +35,23 @@
*/
class CI_DB_oci8_utility extends CI_DB_utility {
+ /**
+ * List databases statement
+ *
+ * @var string
+ */
protected $_list_databases = 'SELECT username FROM dba_users'; // Schemas are actual usernames
/**
- * Oracle Export
+ * Export
*
- * @param array Preferences
+ * @param array $params Preferences
* @return mixed
*/
protected function _backup($params = array())
{
// Currently unsupported
- return $this->db->display_error('db_unsuported_feature');
+ return $this->db->display_error('db_unsupported_feature');
}
}