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tags/2.0.0-beta
Qiang Xue 14 years ago
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  1. 39
      framework/db/Exception.php
  2. 387
      framework/db/Migration.php
  3. 2363
      framework/db/ar/ActiveRecord.php
  4. 97
      framework/db/ar/ActiveRecordBehavior.php
  5. 1499
      framework/db/pdo/Command.php
  6. 792
      framework/db/pdo/Connection.php
  7. 241
      framework/db/pdo/DataReader.php
  8. 108
      framework/db/pdo/Transaction.php

39
framework/db/Exception.php
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<?php
/**
* CDbException class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CDbException represents an exception that is caused by some DB-related operations.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id: CDbException.php 2799 2011-01-01 19:31:13Z qiang.xue $
* @package system.db
* @since 1.0
*/
class CDbException extends CException
{
/**
* @var mixed the error info provided by a PDO exception. This is the same as returned
* by {@link http://www.php.net/manual/en/pdo.errorinfo.php PDO::errorInfo}.
* @since 1.1.4
*/
public $errorInfo;
/**
* Constructor.
* @param string $message PDO error message
* @param integer $code PDO error code
* @param mixed $errorInfo PDO error info
*/
public function __construct($message, $code = 0, $errorInfo = null)
{
$this->errorInfo = $errorInfo;
parent::__construct($message, $code);
}
}

387
framework/db/Migration.php
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<?php
/**
* CMysqlSchema class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CDbMigration is the base class for representing a database migration.
*
* CDbMigration is designed to be used together with the "yiic migrate" command.
*
* Each child class of CDbMigration represents an individual database migration which
* is identified by the child class name.
*
* Within each migration, the {@link up} method contains the logic for "upgrading"
* the database used in an application; while the {@link down} method contains "downgrading"
* logic. The "yiic migrate" command manages all available migrations in an application.
*
* CDbMigration provides a set of convenient methods for manipulating database data and schema.
* For example, the {@link insert} method can be used to easily insert a row of data into
* a database table; the {@link createTable} method can be used to create a database table.
* Compared with the same methods in {@link CDbCommand}, these methods will display extra
* information showing the method parameters and execution time, which may be useful when
* applying migrations.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id: CDbMigration.php 3218 2011-05-13 00:06:44Z alexander.makarow $
* @package system.db
* @since 1.1.6
*/
abstract class CDbMigration extends CComponent
{
private $_db;
/**
* This method contains the logic to be executed when applying this migration.
* Child classes may implement this method to provide actual migration logic.
* @return boolean
*/
public function up()
{
$transaction = $this->getDbConnection()->beginTransaction();
try
{
if ($this->safeUp() === false)
{
$transaction->rollBack();
return false;
}
$transaction->commit();
}
catch(Exception $e)
{
echo "Exception: " . $e->getMessage() . ' (' . $e->getFile() . ':' . $e->getLine() . ")\n";
echo $e->getTraceAsString() . "\n";
$transaction->rollBack();
return false;
}
}
/**
* This method contains the logic to be executed when removing this migration.
* The default implementation throws an exception indicating the migration cannot be removed.
* Child classes may override this method if the corresponding migrations can be removed.
* @return boolean
*/
public function down()
{
$transaction = $this->getDbConnection()->beginTransaction();
try
{
if ($this->safeDown() === false)
{
$transaction->rollBack();
return false;
}
$transaction->commit();
}
catch(Exception $e)
{
echo "Exception: " . $e->getMessage() . ' (' . $e->getFile() . ':' . $e->getLine() . ")\n";
echo $e->getTraceAsString() . "\n";
$transaction->rollBack();
return false;
}
}
/**
* This method contains the logic to be executed when applying this migration.
* This method differs from {@link up} in that the DB logic implemented here will
* be enclosed within a DB transaction.
* Child classes may implement this method instead of {@link up} if the DB logic
* needs to be within a transaction.
* @return boolean
* @since 1.1.7
*/
public function safeUp()
{
}
/**
* This method contains the logic to be executed when removing this migration.
* This method differs from {@link down} in that the DB logic implemented here will
* be enclosed within a DB transaction.
* Child classes may implement this method instead of {@link up} if the DB logic
* needs to be within a transaction.
* @return boolean
* @since 1.1.7
*/
public function safeDown()
{
}
/**
* Returns the currently active database connection.
* By default, the 'db' application component will be returned and activated.
* You can call {@link setDbConnection} to switch to a different database connection.
* Methods such as {@link insert}, {@link createTable} will use this database connection
* to perform DB queries.
* @return CDbConnection the currently active database connection
*/
public function getDbConnection()
{
if ($this->_db === null)
{
$this->_db = Yii::app()->getComponent('db');
if (!$this->_db instanceof CDbConnection)
throw new CException(Yii::t('yii', 'The "db" application component must be configured to be a CDbConnection object.'));
}
return $this->_db;
}
/**
* Sets the currently active database connection.
* The database connection will be used by the methods such as {@link insert}, {@link createTable}.
* @param CDbConnection $db the database connection component
*/
public function setDbConnection($db)
{
$this->_db = $db;
}
/**
* Executes a SQL statement.
* This method executes the specified SQL statement using {@link dbConnection}.
* @param string $sql the SQL statement to be executed
* @param array $params input parameters (name=>value) for the SQL execution. See {@link CDbCommand::execute} for more details.
* @since 1.1.7
*/
public function execute($sql, $params = array())
{
echo " > execute SQL: $sql ...";
$time = microtime(true);
$this->getDbConnection()->createCommand($sql)->execute($params);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Creates and executes an INSERT SQL statement.
* The method will properly escape the column names, and bind the values to be inserted.
* @param string $table the table that new rows will be inserted into.
* @param array $columns the column data (name=>value) to be inserted into the table.
*/
public function insert($table, $columns)
{
echo " > insert into $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->insert($table, $columns);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Creates and executes an UPDATE SQL statement.
* The method will properly escape the column names and bind the values to be updated.
* @param string $table the table to be updated.
* @param array $columns the column data (name=>value) to be updated.
* @param mixed $conditions the conditions that will be put in the WHERE part. Please
* refer to {@link CDbCommand::where} on how to specify conditions.
* @param array $params the parameters to be bound to the query.
*/
public function update($table, $columns, $conditions = '', $params = array())
{
echo " > update $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->update($table, $columns, $conditions, $params);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Creates and executes a DELETE SQL statement.
* @param string $table the table where the data will be deleted from.
* @param mixed $conditions the conditions that will be put in the WHERE part. Please
* refer to {@link CDbCommand::where} on how to specify conditions.
* @param array $params the parameters to be bound to the query.
*/
public function delete($table, $conditions = '', $params = array())
{
echo " > delete from $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->delete($table, $conditions, $params);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for creating a new DB table.
*
* The columns in the new table should be specified as name-definition pairs (e.g. 'name'=>'string'),
* where name stands for a column name which will be properly quoted by the method, and definition
* stands for the column type which can contain an abstract DB type.
* The {@link getColumnType} method will be invoked to convert any abstract type into a physical one.
*
* If a column is specified with definition only (e.g. 'PRIMARY KEY (name, type)'), it will be directly
* inserted into the generated SQL.
*
* @param string $table the name of the table to be created. The name will be properly quoted by the method.
* @param array $columns the columns (name=>definition) in the new table.
* @param string $options additional SQL fragment that will be appended to the generated SQL.
*/
public function createTable($table, $columns, $options = null)
{
echo " > create table $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->createTable($table, $columns, $options);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for renaming a DB table.
* @param string $table the table to be renamed. The name will be properly quoted by the method.
* @param string $newName the new table name. The name will be properly quoted by the method.
*/
public function renameTable($table, $newName)
{
echo " > rename table $table to $newName ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->renameTable($table, $newName);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for dropping a DB table.
* @param string $table the table to be dropped. The name will be properly quoted by the method.
*/
public function dropTable($table)
{
echo " > drop table $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->dropTable($table);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for truncating a DB table.
* @param string $table the table to be truncated. The name will be properly quoted by the method.
*/
public function truncateTable($table)
{
echo " > truncate table $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->truncateTable($table);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for adding a new DB column.
* @param string $table the table that the new column will be added to. The table name will be properly quoted by the method.
* @param string $column the name of the new column. The name will be properly quoted by the method.
* @param string $type the column type. The {@link getColumnType} method will be invoked to convert abstract column type (if any)
* into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL.
* For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'.
*/
public function addColumn($table, $column, $type)
{
echo " > add column $column $type to table $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->addColumn($table, $column, $type);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for dropping a DB column.
* @param string $table the table whose column is to be dropped. The name will be properly quoted by the method.
* @param string $column the name of the column to be dropped. The name will be properly quoted by the method.
*/
public function dropColumn($table, $column)
{
echo " > drop column $column from table $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->dropColumn($table, $column);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for renaming a column.
* @param string $table the table whose column is to be renamed. The name will be properly quoted by the method.
* @param string $name the old name of the column. The name will be properly quoted by the method.
* @param string $newName the new name of the column. The name will be properly quoted by the method.
*/
public function renameColumn($table, $name, $newName)
{
echo " > rename column $name in table $table to $newName ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->renameColumn($table, $name, $newName);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for changing the definition of a column.
* @param string $table the table whose column is to be changed. The table name will be properly quoted by the method.
* @param string $column the name of the column to be changed. The name will be properly quoted by the method.
* @param string $type the new column type. The {@link getColumnType} method will be invoked to convert abstract column type (if any)
* into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL.
* For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'.
*/
public function alterColumn($table, $column, $type)
{
echo " > alter column $column in table $table to $type ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->alterColumn($table, $column, $type);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds a SQL statement for adding a foreign key constraint to an existing table.
* The method will properly quote the table and column names.
* @param string $name the name of the foreign key constraint.
* @param string $table the table that the foreign key constraint will be added to.
* @param string $columns the name of the column to that the constraint will be added on. If there are multiple columns, separate them with commas.
* @param string $refTable the table that the foreign key references to.
* @param string $refColumns the name of the column that the foreign key references to. If there are multiple columns, separate them with commas.
* @param string $delete the ON DELETE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL
* @param string $update the ON UPDATE option. Most DBMS support these options: RESTRICT, CASCADE, NO ACTION, SET DEFAULT, SET NULL
*/
public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null)
{
echo " > add foreign key $name: $table ($columns) references $refTable ($refColumns) ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete, $update);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds a SQL statement for dropping a foreign key constraint.
* @param string $name the name of the foreign key constraint to be dropped. The name will be properly quoted by the method.
* @param string $table the table whose foreign is to be dropped. The name will be properly quoted by the method.
*/
public function dropForeignKey($name, $table)
{
echo " > drop foreign key $name from table $table ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->dropForeignKey($name, $table);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for creating a new index.
* @param string $name the name of the index. The name will be properly quoted by the method.
* @param string $table the table that the new index will be created for. The table name will be properly quoted by the method.
* @param string $column the column(s) that should be included in the index. If there are multiple columns, please separate them
* by commas. The column names will be properly quoted by the method.
* @param boolean $unique whether to add UNIQUE constraint on the created index.
*/
public function createIndex($name, $table, $column, $unique = false)
{
echo " > create" . ($unique ? ' unique' : '') . " index $name on $table ($column) ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->createIndex($name, $table, $column, $unique);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
/**
* Builds and executes a SQL statement for dropping an index.
* @param string $name the name of the index to be dropped. The name will be properly quoted by the method.
* @param string $table the table whose index is to be dropped. The name will be properly quoted by the method.
*/
public function dropIndex($name, $table)
{
echo " > drop index $name ...";
$time = microtime(true);
$this->getDbConnection()->createCommand()->dropIndex($name, $table);
echo " done (time: " . sprintf('%.3f', microtime(true) - $time) . "s)\n";
}
}

2363
framework/db/ar/ActiveRecord.php
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framework/db/ar/ActiveRecordBehavior.php
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<?php
/**
* CActiveRecordBehavior class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CActiveRecordBehavior is the base class for behaviors that can be attached to {@link CActiveRecord}.
* Compared with {@link CModelBehavior}, CActiveRecordBehavior attaches to more events
* that are only defined by {@link CActiveRecord}.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id: CActiveRecordBehavior.php 2799 2011-01-01 19:31:13Z qiang.xue $
* @package system.db.ar
* @since 1.0.2
*/
class CActiveRecordBehavior extends CModelBehavior
{
/**
* Declares events and the corresponding event handler methods.
* If you override this method, make sure you merge the parent result to the return value.
* @return array events (array keys) and the corresponding event handler methods (array values).
* @see CBehavior::events
*/
public function events()
{
return array_merge(parent::events(), array(
'onBeforeSave' => 'beforeSave',
'onAfterSave' => 'afterSave',
'onBeforeDelete' => 'beforeDelete',
'onAfterDelete' => 'afterDelete',
'onBeforeFind' => 'beforeFind',
'onAfterFind' => 'afterFind',
));
}
/**
* Responds to {@link CActiveRecord::onBeforeSave} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* You may set {@link CModelEvent::isValid} to be false to quit the saving process.
* @param CModelEvent $event event parameter
*/
public function beforeSave($event)
{
}
/**
* Responds to {@link CActiveRecord::onAfterSave} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* @param CModelEvent $event event parameter
*/
public function afterSave($event)
{
}
/**
* Responds to {@link CActiveRecord::onBeforeDelete} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* You may set {@link CModelEvent::isValid} to be false to quit the deletion process.
* @param CEvent $event event parameter
*/
public function beforeDelete($event)
{
}
/**
* Responds to {@link CActiveRecord::onAfterDelete} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
*/
public function afterDelete($event)
{
}
/**
* Responds to {@link CActiveRecord::onBeforeFind} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
* @since 1.0.9
*/
public function beforeFind($event)
{
}
/**
* Responds to {@link CActiveRecord::onAfterFind} event.
* Overrides this method if you want to handle the corresponding event of the {@link CBehavior::owner owner}.
* @param CEvent $event event parameter
*/
public function afterFind($event)
{
}
}

1499
framework/db/pdo/Command.php
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framework/db/pdo/Connection.php
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<?php
/**
* Connection class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2012 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* Connection represents a connection to a database.
*
* Connection works together with {@link CDbCommand}, {@link CDbDataReader}
* and {@link CDbTransaction} to provide data access to various DBMS
* in a common set of APIs. They are a thin wrapper of the {@link http://www.php.net/manual/en/ref.pdo.php PDO}
* PHP extension.
*
* To establish a connection, set {@link setActive active} to true after
* specifying {@link connectionString}, {@link username} and {@link password}.
*
* The following example shows how to create a Connection instance and establish
* the actual connection:
* <pre>
* $connection=new Connection($dsn,$username,$password);
* $connection->active=true;
* </pre>
*
* After the DB connection is established, one can execute an SQL statement like the following:
* <pre>
* $command=$connection->createCommand($sqlStatement);
* $command->execute(); // a non-query SQL statement execution
* // or execute an SQL query and fetch the result set
* $reader=$command->query();
*
* // each $row is an array representing a row of data
* foreach($reader as $row) ...
* </pre>
*
* One can do prepared SQL execution and bind parameters to the prepared SQL:
* <pre>
* $command=$connection->createCommand($sqlStatement);
* $command->bindParam($name1,$value1);
* $command->bindParam($name2,$value2);
* $command->execute();
* </pre>
*
* To use transaction, do like the following:
* <pre>
* $transaction=$connection->beginTransaction();
* try
* {
* $connection->createCommand($sql1)->execute();
* $connection->createCommand($sql2)->execute();
* //.... other SQL executions
* $transaction->commit();
* }
* catch(Exception $e)
* {
* $transaction->rollBack();
* }
* </pre>
*
* Connection also provides a set of methods to support setting and querying
* of certain DBMS attributes, such as {@link getNullConversion nullConversion}.
*
* Since Connection implements the interface IApplicationComponent, it can
* be used as an application component and be configured in application configuration,
* like the following,
* <pre>
* array(
* 'components'=>array(
* 'db'=>array(
* 'class'=>'Connection',
* 'connectionString'=>'sqlite:path/to/dbfile',
* ),
* ),
* )
* </pre>
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class Connection extends \yii\base\ApplicationComponent
{
/**
* @var string The Data Source Name, or DSN, contains the information required to connect to the database.
* @see http://www.php.net/manual/en/function.PDO-construct.php
*
* Note that if your database is using GBK or BIG5 charset, we highly recommend you
* to upgrade to PHP 5.3.6+ and specify charset via DSN like the following to prevent
* from hacking: `mysql:dbname=mydatabase;host=127.0.0.1;charset=GBK;`.
*/
public $dsn;
/**
* @var string the username for establishing DB connection. Defaults to empty string.
*/
public $username = '';
/**
* @var string the password for establishing DB connection. Defaults to empty string.
*/
public $password = '';
/**
* @var integer number of seconds that table metadata can remain valid in cache.
* Use 0 or negative value to indicate not caching schema.
* If greater than 0 and the primary cache is enabled, the table metadata will be cached.
* @see schemaCachingExclude
*/
public $schemaCachingDuration = 0;
/**
* @var array list of tables whose metadata should NOT be cached. Defaults to empty array.
* @see schemaCachingDuration
*/
public $schemaCachingExclude = array();
/**
* @var string the ID of the cache application component that is used to cache the table metadata.
* Defaults to 'cache' which refers to the primary cache application component.
* Set this property to false if you want to disable caching table metadata.
* @since 1.0.10
*/
public $schemaCacheID = 'cache';
/**
* @var integer number of seconds that query results can remain valid in cache.
* Use 0 or negative value to indicate not caching query results (the default behavior).
*
* In order to enable query caching, this property must be a positive
* integer and {@link queryCacheID} must point to a valid cache component ID.
*
* The method {@link cache()} is provided as a convenient way of setting this property
* and {@link queryCachingDependency} on the fly.
*
* @see cache
* @see queryCachingDependency
* @see queryCacheID
* @since 1.1.7
*/
public $queryCachingDuration = 0;
/**
* @var CCacheDependency the dependency that will be used when saving query results into cache.
* @see queryCachingDuration
* @since 1.1.7
*/
public $queryCachingDependency;
/**
* @var integer the number of SQL statements that need to be cached next.
* If this is 0, then even if query caching is enabled, no query will be cached.
* Note that each time after executing a SQL statement (whether executed on DB server or fetched from
* query cache), this property will be reduced by 1 until 0.
* @since 1.1.7
*/
public $queryCachingCount = 0;
/**
* @var string the ID of the cache application component that is used for query caching.
* Defaults to 'cache' which refers to the primary cache application component.
* Set this property to false if you want to disable query caching.
* @since 1.1.7
*/
public $queryCacheID = 'cache';
/**
* @var boolean whether the database connection should be automatically established
* the component is being initialized. Defaults to true. Note, this property is only
* effective when the Connection object is used as an application component.
*/
public $autoConnect = true;
/**
* @var string the charset used for database connection. The property is only used
* for MySQL and PostgreSQL databases. Defaults to null, meaning using default charset
* as specified by the database.
*
* Note that if you're using GBK or BIG5 then it's highly recommended to
* update to PHP 5.3.6+ and to specify charset via DSN like
* 'mysql:dbname=mydatabase;host=127.0.0.1;charset=GBK;'.
*/
public $charset;
/**
* @var boolean whether to turn on prepare emulation. Defaults to false, meaning PDO
* will use the native prepare support if available. For some databases (such as MySQL),
* this may need to be set true so that PDO can emulate the prepare support to bypass
* the buggy native prepare support. Note, this property is only effective for PHP 5.1.3 or above.
* The default value is null, which will not change the ATTR_EMULATE_PREPARES value of PDO.
*/
public $emulatePrepare;
/**
* @var boolean whether to log the values that are bound to a prepare SQL statement.
* Defaults to false. During development, you may consider setting this property to true
* so that parameter values bound to SQL statements are logged for debugging purpose.
* You should be aware that logging parameter values could be expensive and have significant
* impact on the performance of your application.
* @since 1.0.5
*/
public $enableParamLogging = false;
/**
* @var boolean whether to enable profiling the SQL statements being executed.
* Defaults to false. This should be mainly enabled and used during development
* to find out the bottleneck of SQL executions.
* @since 1.0.6
*/
public $enableProfiling = false;
/**
* @var string the default prefix for table names. Defaults to null, meaning no table prefix.
* By setting this property, any token like '{{tableName}}' in {@link CDbCommand::text} will
* be replaced by 'prefixTableName', where 'prefix' refers to this property value.
* @since 1.1.0
*/
public $tablePrefix;
/**
* @var array list of SQL statements that should be executed right after the DB connection is established.
* @since 1.1.1
*/
public $initSQLs;
/**
* @var array mapping between PDO driver and schema class name.
* A schema class can be specified using path alias.
* @since 1.1.6
*/
public $driverMap = array(
'pgsql' => 'CPgsqlSchema', // PostgreSQL
'mysqli' => 'CMysqlSchema', // MySQL
'mysql' => 'CMysqlSchema', // MySQL
'sqlite' => 'CSqliteSchema', // sqlite 3
'sqlite2' => 'CSqliteSchema', // sqlite 2
'mssql' => 'CMssqlSchema', // Mssql driver on windows hosts
'dblib' => 'CMssqlSchema', // dblib drivers on linux (and maybe others os) hosts
'sqlsrv' => 'CMssqlSchema', // Mssql
'oci' => 'COciSchema', // Oracle driver
);
/**
* @var string Custom PDO wrapper class.
* @since 1.1.8
*/
public $pdoClass = 'PDO';
private $_attributes = array();
private $_active = false;
private $_pdo;
private $_transaction;
private $_schema;
/**
* Constructor.
* Note, the DB connection is not established when this connection
* instance is created. Set {@link setActive active} property to true
* to establish the connection.
* @param string $dsn The Data Source Name, or DSN, contains the information required to connect to the database.
* @param string $username The user name for the DSN string.
* @param string $password The password for the DSN string.
* @see http://www.php.net/manual/en/function.PDO-construct.php
*/
public function __construct($dsn = '', $username = '', $password = '')
{
$this->connectionString = $dsn;
$this->username = $username;
$this->password = $password;
}
/**
* Close the connection when serializing.
* @return array
*/
public function __sleep()
{
$this->close();
return array_keys(get_object_vars($this));
}
/**
* Returns a list of available PDO drivers.
* @return array list of available PDO drivers
* @see http://www.php.net/manual/en/function.PDO-getAvailableDrivers.php
*/
public static function getAvailableDrivers()
{
return PDO::getAvailableDrivers();
}
/**
* Initializes the component.
* This method is required by {@link IApplicationComponent} and is invoked by application
* when the Connection is used as an application component.
* If you override this method, make sure to call the parent implementation
* so that the component can be marked as initialized.
*/
public function init()
{
parent::init();
if ($this->autoConnect)
$this->setActive(true);
}
/**
* Returns whether the DB connection is established.
* @return boolean whether the DB connection is established
*/
public function getActive()
{
return $this->_active;
}
/**
* Open or close the DB connection.
* @param boolean $value whether to open or close DB connection
* @throws CException if connection fails
*/
public function setActive($value)
{
if ($value != $this->_active)
{
if ($value)
$this->open();
else
$this->close();
}
}
/**
* Sets the parameters about query caching.
* This method can be used to enable or disable query caching.
* By setting the $duration parameter to be 0, the query caching will be disabled.
* Otherwise, query results of the new SQL statements executed next will be saved in cache
* and remain valid for the specified duration.
* If the same query is executed again, the result may be fetched from cache directly
* without actually executing the SQL statement.
* @param integer $duration the number of seconds that query results may remain valid in cache.
* If this is 0, the caching will be disabled.
* @param CCacheDependency $dependency the dependency that will be used when saving the query results into cache.
* @param integer $queryCount number of SQL queries that need to be cached after calling this method. Defaults to 1,
* meaning that the next SQL query will be cached.
* @return Connection the connection instance itself.
* @since 1.1.7
*/
public function cache($duration, $dependency = null, $queryCount = 1)
{
$this->queryCachingDuration = $duration;
$this->queryCachingDependency = $dependency;
$this->queryCachingCount = $queryCount;
return $this;
}
/**
* Opens DB connection if it is currently not
* @throws CException if connection fails
*/
protected function open()
{
if ($this->_pdo === null)
{
if (empty($this->connectionString))
throw new CDbException(Yii::t('yii', 'Connection.connectionString cannot be empty.'));
try
{
Yii::trace('Opening DB connection', 'system.db.Connection');
$this->_pdo = $this->createPdoInstance();
$this->initConnection($this->_pdo);
$this->_active = true;
}
catch(PDOException $e)
{
if (YII_DEBUG)
{
throw new CDbException(Yii::t('yii', 'Connection failed to open the DB connection: {error}',
array('{error}' => $e->getMessage())), (int)$e->getCode(), $e->errorInfo);
}
else
{
Yii::log($e->getMessage(), CLogger::LEVEL_ERROR, 'exception.CDbException');
throw new CDbException(Yii::t('yii', 'Connection failed to open the DB connection.'), (int)$e->getCode(), $e->errorInfo);
}
}
}
}
/**
* Closes the currently active DB connection.
* It does nothing if the connection is already closed.
*/
protected function close()
{
Yii::trace('Closing DB connection', 'system.db.Connection');
$this->_pdo = null;
$this->_active = false;
$this->_schema = null;
}
/**
* Creates the PDO instance.
* When some functionalities are missing in the pdo driver, we may use
* an adapter class to provides them.
* @return PDO the pdo instance
* @since 1.0.4
*/
protected function createPdoInstance()
{
$pdoClass = $this->pdoClass;
if (($pos = strpos($this->connectionString, ':')) !== false)
{
$driver = strtolower(substr($this->connectionString, 0, $pos));
if ($driver === 'mssql' || $driver === 'dblib' || $driver === 'sqlsrv')
$pdoClass = 'CMssqlPdoAdapter';
}
return new $pdoClass($this->connectionString, $this->username,
$this->password, $this->_attributes);
}
/**
* Initializes the open db connection.
* This method is invoked right after the db connection is established.
* The default implementation is to set the charset for MySQL and PostgreSQL database connections.
* @param PDO $pdo the PDO instance
*/
protected function initConnection($pdo)
{
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
if ($this->emulatePrepare !== null && constant('PDO::ATTR_EMULATE_PREPARES'))
$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, $this->emulatePrepare);
if ($this->charset !== null)
{
$driver = strtolower($pdo->getAttribute(PDO::ATTR_DRIVER_NAME));
if (in_array($driver, array('pgsql', 'mysql', 'mysqli')))
$pdo->exec('SET NAMES ' . $pdo->quote($this->charset));
}
if ($this->initSQLs !== null)
{
foreach ($this->initSQLs as $sql)
$pdo->exec($sql);
}
}
/**
* Returns the PDO instance.
* @return PDO the PDO instance, null if the connection is not established yet
*/
public function getPdoInstance()
{
return $this->_pdo;
}
/**
* Creates a command for execution.
* @param mixed $query the DB query to be executed. This can be either a string representing a SQL statement,
* or an array representing different fragments of a SQL statement. Please refer to {@link CDbCommand::__construct}
* for more details about how to pass an array as the query. If this parameter is not given,
* you will have to call query builder methods of {@link CDbCommand} to build the DB query.
* @return CDbCommand the DB command
*/
public function createCommand($query = null)
{
$this->setActive(true);
return new CDbCommand($this, $query);
}
/**
* Returns the currently active transaction.
* @return CDbTransaction the currently active transaction. Null if no active transaction.
*/
public function getCurrentTransaction()
{
if ($this->_transaction !== null)
{
if ($this->_transaction->getActive())
return $this->_transaction;
}
return null;
}
/**
* Starts a transaction.
* @return CDbTransaction the transaction initiated
*/
public function beginTransaction()
{
Yii::trace('Starting transaction', 'system.db.Connection');
$this->setActive(true);
$this->_pdo->beginTransaction();
return $this->_transaction = new CDbTransaction($this);
}
/**
* Returns the database schema for the current connection
* @return CDbSchema the database schema for the current connection
*/
public function getSchema()
{
if ($this->_schema !== null)
return $this->_schema;
else
{
$driver = $this->getDriverName();
if (isset($this->driverMap[$driver]))
return $this->_schema = Yii::createComponent($this->driverMap[$driver], $this);
else
throw new CDbException(Yii::t('yii', 'Connection does not support reading schema for {driver} database.',
array('{driver}' => $driver)));
}
}
/**
* Returns the SQL command builder for the current DB connection.
* @return CDbCommandBuilder the command builder
* @since 1.0.4
*/
public function getCommandBuilder()
{
return $this->getSchema()->getCommandBuilder();
}
/**
* Returns the ID of the last inserted row or sequence value.
* @param string $sequenceName name of the sequence object (required by some DBMS)
* @return string the row ID of the last row inserted, or the last value retrieved from the sequence object
* @see http://www.php.net/manual/en/function.PDO-lastInsertId.php
*/
public function getLastInsertID($sequenceName = '')
{
$this->setActive(true);
return $this->_pdo->lastInsertId($sequenceName);
}
/**
* Quotes a string value for use in a query.
* @param string $str string to be quoted
* @return string the properly quoted string
* @see http://www.php.net/manual/en/function.PDO-quote.php
*/
public function quoteValue($str)
{
if (is_int($str) || is_float($str))
return $str;
$this->setActive(true);
if (($value = $this->_pdo->quote($str)) !== false)
return $value;
else // the driver doesn't support quote (e.g. oci)
return "'" . addcslashes(str_replace("'", "''", $str), "\000\n\r\\\032") . "'";
}
/**
* Quotes a table name for use in a query.
* If the table name contains schema prefix, the prefix will also be properly quoted.
* @param string $name table name
* @return string the properly quoted table name
*/
public function quoteTableName($name)
{
return $this->getSchema()->quoteTableName($name);
}
/**
* Quotes a column name for use in a query.
* If the column name contains prefix, the prefix will also be properly quoted.
* @param string $name column name
* @return string the properly quoted column name
*/
public function quoteColumnName($name)
{
return $this->getSchema()->quoteColumnName($name);
}
/**
* Determines the PDO type for the specified PHP type.
* @param string $type The PHP type (obtained by gettype() call).
* @return integer the corresponding PDO type
*/
public function getPdoType($type)
{
static $map = array
(
'boolean' => PDO::PARAM_BOOL,
'integer' => PDO::PARAM_INT,
'string' => PDO::PARAM_STR,
'NULL' => PDO::PARAM_NULL,
);
return isset($map[$type]) ? $map[$type] : PDO::PARAM_STR;
}
/**
* Returns the case of the column names
* @return mixed the case of the column names
* @see http://www.php.net/manual/en/pdo.setattribute.php
*/
public function getColumnCase()
{
return $this->getAttribute(PDO::ATTR_CASE);
}
/**
* Sets the case of the column names.
* @param mixed $value the case of the column names
* @see http://www.php.net/manual/en/pdo.setattribute.php
*/
public function setColumnCase($value)
{
$this->setAttribute(PDO::ATTR_CASE, $value);
}
/**
* Returns how the null and empty strings are converted.
* @return mixed how the null and empty strings are converted
* @see http://www.php.net/manual/en/pdo.setattribute.php
*/
public function getNullConversion()
{
return $this->getAttribute(PDO::ATTR_ORACLE_NULLS);
}
/**
* Sets how the null and empty strings are converted.
* @param mixed $value how the null and empty strings are converted
* @see http://www.php.net/manual/en/pdo.setattribute.php
*/
public function setNullConversion($value)
{
$this->setAttribute(PDO::ATTR_ORACLE_NULLS, $value);
}
/**
* Returns whether creating or updating a DB record will be automatically committed.
* Some DBMS (such as sqlite) may not support this feature.
* @return boolean whether creating or updating a DB record will be automatically committed.
*/
public function getAutoCommit()
{
return $this->getAttribute(PDO::ATTR_AUTOCOMMIT);
}
/**
* Sets whether creating or updating a DB record will be automatically committed.
* Some DBMS (such as sqlite) may not support this feature.
* @param boolean $value whether creating or updating a DB record will be automatically committed.
*/
public function setAutoCommit($value)
{
$this->setAttribute(PDO::ATTR_AUTOCOMMIT, $value);
}
/**
* Returns whether the connection is persistent or not.
* Some DBMS (such as sqlite) may not support this feature.
* @return boolean whether the connection is persistent or not
*/
public function getPersistent()
{
return $this->getAttribute(PDO::ATTR_PERSISTENT);
}
/**
* Sets whether the connection is persistent or not.
* Some DBMS (such as sqlite) may not support this feature.
* @param boolean $value whether the connection is persistent or not
*/
public function setPersistent($value)
{
return $this->setAttribute(PDO::ATTR_PERSISTENT, $value);
}
/**
* Returns the name of the DB driver
* @return string name of the DB driver
*/
public function getDriverName()
{
if (($pos = strpos($this->connectionString, ':')) !== false)
return strtolower(substr($this->connectionString, 0, $pos));
// return $this->getAttribute(PDO::ATTR_DRIVER_NAME);
}
/**
* Returns the version information of the DB driver.
* @return string the version information of the DB driver
*/
public function getClientVersion()
{
return $this->getAttribute(PDO::ATTR_CLIENT_VERSION);
}
/**
* Returns the status of the connection.
* Some DBMS (such as sqlite) may not support this feature.
* @return string the status of the connection
*/
public function getConnectionStatus()
{
return $this->getAttribute(PDO::ATTR_CONNECTION_STATUS);
}
/**
* Returns whether the connection performs data prefetching.
* @return boolean whether the connection performs data prefetching
*/
public function getPrefetch()
{
return $this->getAttribute(PDO::ATTR_PREFETCH);
}
/**
* Returns the information of DBMS server.
* @return string the information of DBMS server
*/
public function getServerInfo()
{
return $this->getAttribute(PDO::ATTR_SERVER_INFO);
}
/**
* Returns the version information of DBMS server.
* @return string the version information of DBMS server
*/
public function getServerVersion()
{
return $this->getAttribute(PDO::ATTR_SERVER_VERSION);
}
/**
* Returns the timeout settings for the connection.
* @return integer timeout settings for the connection
*/
public function getTimeout()
{
return $this->getAttribute(PDO::ATTR_TIMEOUT);
}
/**
* Obtains a specific DB connection attribute information.
* @param integer $name the attribute to be queried
* @return mixed the corresponding attribute information
* @see http://www.php.net/manual/en/function.PDO-getAttribute.php
*/
public function getAttribute($name)
{
$this->setActive(true);
return $this->_pdo->getAttribute($name);
}
/**
* Sets an attribute on the database connection.
* @param integer $name the attribute to be set
* @param mixed $value the attribute value
* @see http://www.php.net/manual/en/function.PDO-setAttribute.php
*/
public function setAttribute($name, $value)
{
if ($this->_pdo instanceof PDO)
$this->_pdo->setAttribute($name, $value);
else
$this->_attributes[$name] = $value;
}
/**
* Returns the attributes that are previously explicitly set for the DB connection.
* @return array attributes (name=>value) that are previously explicitly set for the DB connection.
* @see setAttributes
* @since 1.1.7
*/
public function getAttributes()
{
return $this->_attributes;
}
/**
* Sets a set of attributes on the database connection.
* @param array $values attributes (name=>value) to be set.
* @see setAttribute
* @since 1.1.7
*/
public function setAttributes($values)
{
foreach ($values as $name => $value)
$this->_attributes[$name] = $value;
}
/**
* Returns the statistical results of SQL executions.
* The results returned include the number of SQL statements executed and
* the total time spent.
* In order to use this method, {@link enableProfiling} has to be set true.
* @return array the first element indicates the number of SQL statements executed,
* and the second element the total time spent in SQL execution.
* @since 1.0.6
*/
public function getStats()
{
$logger = Yii::getLogger();
$timings = $logger->getProfilingResults(null, 'system.db.CDbCommand.query');
$count = count($timings);
$time = array_sum($timings);
$timings = $logger->getProfilingResults(null, 'system.db.CDbCommand.execute');
$count += count($timings);
$time += array_sum($timings);
return array($count, $time);
}
}

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framework/db/pdo/DataReader.php
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<?php
/**
* CDbDataReader class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CDbDataReader represents a forward-only stream of rows from a query result set.
*
* To read the current row of data, call {@link read}. The method {@link readAll}
* returns all the rows in a single array.
*
* One can also retrieve the rows of data in CDbDataReader by using foreach:
* <pre>
* foreach($reader as $row)
* // $row represents a row of data
* </pre>
* Since CDbDataReader is a forward-only stream, you can only traverse it once.
*
* It is possible to use a specific mode of data fetching by setting
* {@link setFetchMode FetchMode}. See {@link http://www.php.net/manual/en/function.PDOStatement-setFetchMode.php}
* for more details.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id: CDbDataReader.php 3204 2011-05-05 21:36:32Z alexander.makarow $
* @package system.db
* @since 1.0
*/
class CDbDataReader extends CComponent implements Iterator, Countable
{
private $_statement;
private $_closed = false;
private $_row;
private $_index = -1;
/**
* Constructor.
* @param CDbCommand $command the command generating the query result
*/
public function __construct(CDbCommand $command)
{
$this->_statement = $command->getPdoStatement();
$this->_statement->setFetchMode(PDO::FETCH_ASSOC);
}
/**
* Binds a column to a PHP variable.
* When rows of data are being fetched, the corresponding column value
* will be set in the variable. Note, the fetch mode must include PDO::FETCH_BOUND.
* @param mixed $column Number of the column (1-indexed) or name of the column
* in the result set. If using the column name, be aware that the name
* should match the case of the column, as returned by the driver.
* @param mixed $value Name of the PHP variable to which the column will be bound.
* @param integer $dataType Data type of the parameter
* @see http://www.php.net/manual/en/function.PDOStatement-bindColumn.php
*/
public function bindColumn($column, &$value, $dataType = null)
{
if ($dataType === null)
$this->_statement->bindColumn($column, $value);
else
$this->_statement->bindColumn($column, $value, $dataType);
}
/**
* Set the default fetch mode for this statement
* @param mixed $mode fetch mode
* @see http://www.php.net/manual/en/function.PDOStatement-setFetchMode.php
*/
public function setFetchMode($mode)
{
$params = func_get_args();
call_user_func_array(array($this->_statement, 'setFetchMode'), $params);
}
/**
* Advances the reader to the next row in a result set.
* @return array|false the current row, false if no more row available
*/
public function read()
{
return $this->_statement->fetch();
}
/**
* Returns a single column from the next row of a result set.
* @param integer $columnIndex zero-based column index
* @return mixed|false the column of the current row, false if no more row available
*/
public function readColumn($columnIndex)
{
return $this->_statement->fetchColumn($columnIndex);
}
/**
* Returns an object populated with the next row of data.
* @param string $className class name of the object to be created and populated
* @param array $fields Elements of this array are passed to the constructor
* @return mixed|false the populated object, false if no more row of data available
*/
public function readObject($className, $fields)
{
return $this->_statement->fetchObject($className, $fields);
}
/**
* Reads the whole result set into an array.
* @return array the result set (each array element represents a row of data).
* An empty array will be returned if the result contains no row.
*/
public function readAll()
{
return $this->_statement->fetchAll();
}
/**
* Advances the reader to the next result when reading the results of a batch of statements.
* This method is only useful when there are multiple result sets
* returned by the query. Not all DBMS support this feature.
* @return boolean Returns true on success or false on failure.
*/
public function nextResult()
{
if (($result = $this->_statement->nextRowset()) !== false)
$this->_index = -1;
return $result;
}
/**
* Closes the reader.
* This frees up the resources allocated for executing this SQL statement.
* Read attemps after this method call are unpredictable.
*/
public function close()
{
$this->_statement->closeCursor();
$this->_closed = true;
}
/**
* whether the reader is closed or not.
* @return boolean whether the reader is closed or not.
*/
public function getIsClosed()
{
return $this->_closed;
}
/**
* Returns the number of rows in the result set.
* Note, most DBMS may not give a meaningful count.
* In this case, use "SELECT COUNT(*) FROM tableName" to obtain the number of rows.
* @return integer number of rows contained in the result.
*/
public function getRowCount()
{
return $this->_statement->rowCount();
}
/**
* Returns the number of rows in the result set.
* This method is required by the Countable interface.
* Note, most DBMS may not give a meaningful count.
* In this case, use "SELECT COUNT(*) FROM tableName" to obtain the number of rows.
* @return integer number of rows contained in the result.
*/
public function count()
{
return $this->getRowCount();
}
/**
* Returns the number of columns in the result set.
* Note, even there's no row in the reader, this still gives correct column number.
* @return integer the number of columns in the result set.
*/
public function getColumnCount()
{
return $this->_statement->columnCount();
}
/**
* Resets the iterator to the initial state.
* This method is required by the interface Iterator.
* @throws CException if this method is invoked twice
*/
public function rewind()
{
if ($this->_index < 0)
{
$this->_row = $this->_statement->fetch();
$this->_index = 0;
}
else
throw new CDbException(Yii::t('yii', 'CDbDataReader cannot rewind. It is a forward-only reader.'));
}
/**
* Returns the index of the current row.
* This method is required by the interface Iterator.
* @return integer the index of the current row.
*/
public function key()
{
return $this->_index;
}
/**
* Returns the current row.
* This method is required by the interface Iterator.
* @return mixed the current row.
*/
public function current()
{
return $this->_row;
}
/**
* Moves the internal pointer to the next row.
* This method is required by the interface Iterator.
*/
public function next()
{
$this->_row = $this->_statement->fetch();
$this->_index++;
}
/**
* Returns whether there is a row of data at current position.
* This method is required by the interface Iterator.
* @return boolean whether there is a row of data at current position.
*/
public function valid()
{
return $this->_row !== false;
}
}

108
framework/db/pdo/Transaction.php
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@ -0,0 +1,108 @@
<?php
/**
* CDbTransaction class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* CDbTransaction represents a DB transaction.
*
* It is usually created by calling {@link CDbConnection::beginTransaction}.
*
* The following code is a common scenario of using transactions:
* <pre>
* $transaction=$connection->beginTransaction();
* try
* {
* $connection->createCommand($sql1)->execute();
* $connection->createCommand($sql2)->execute();
* //.... other SQL executions
* $transaction->commit();
* }
* catch(Exception $e)
* {
* $transaction->rollBack();
* }
* </pre>
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id: CDbTransaction.php 3069 2011-03-14 00:28:38Z qiang.xue $
* @package system.db
* @since 1.0
*/
class CDbTransaction extends CComponent
{
private $_connection = null;
private $_active;
/**
* Constructor.
* @param CDbConnection $connection the connection associated with this transaction
* @see CDbConnection::beginTransaction
*/
public function __construct(CDbConnection $connection)
{
$this->_connection = $connection;
$this->_active = true;
}
/**
* Commits a transaction.
* @throws CException if the transaction or the DB connection is not active.
*/
public function commit()
{
if ($this->_active && $this->_connection->getActive())
{
Yii::trace('Committing transaction', 'system.db.CDbTransaction');
$this->_connection->getPdoInstance()->commit();
$this->_active = false;
}
else
throw new CDbException(Yii::t('yii', 'CDbTransaction is inactive and cannot perform commit or roll back operations.'));
}
/**
* Rolls back a transaction.
* @throws CException if the transaction or the DB connection is not active.
*/
public function rollback()
{
if ($this->_active && $this->_connection->getActive())
{
Yii::trace('Rolling back transaction', 'system.db.CDbTransaction');
$this->_connection->getPdoInstance()->rollBack();
$this->_active = false;
}
else
throw new CDbException(Yii::t('yii', 'CDbTransaction is inactive and cannot perform commit or roll back operations.'));
}
/**
* @return CDbConnection the DB connection for this transaction
*/
public function getConnection()
{
return $this->_connection;
}
/**
* @return boolean whether this transaction is active
*/
public function getActive()
{
return $this->_active;
}
/**
* @param boolean $value whether this transaction is active
*/
protected function setActive($value)
{
$this->_active = $value;
}
}
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