Class yii\mongodb\Transaction

All Classes | Properties | Methods | Constants
Inheritanceyii\mongodb\Transaction » yii\base\BaseObject
Implementsyii\base\Configurable
Source Code https://github.com/yiisoft/yii2-mongodb/blob/master/Transaction.php

In MongoDB, an operation on a single document is atomic. Because you can use embedded documents and arrays to capture relationships between data in a single document structure instead of normalizing across multiple documents and collections, this single-document atomicity obviates the need for multi-document transactions for many practical use cases.

For situations that require atomicity of reads and writes to multiple documents (in a single or multiple collections), MongoDB supports multi-document transactions. With distributed transactions, transactions can be used across multiple operations, collections, databases, documents, and shards.

See also:

Public Properties

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Property Type Description Defined By
$clientSession \yii\mongodb\MongoDB\Driver\Session Class represents a client session and Commands, queries, and write operations may then be associated the session. yii\mongodb\Transaction
$isActive boolean Whether this transaction is active. yii\mongodb\Transaction
$state yii\mongodb\Transaction

Public Methods

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Method Description Defined By
__call() Calls the named method which is not a class method. yii\base\BaseObject
__construct() Constructor. yii\base\BaseObject
__get() Returns the value of an object property. yii\base\BaseObject
__isset() Checks if a property is set, i.e. defined and not null. yii\base\BaseObject
__set() Sets value of an object property. yii\base\BaseObject
__unset() Sets an object property to null. yii\base\BaseObject
canGetProperty() Returns a value indicating whether a property can be read. yii\base\BaseObject
canSetProperty() Returns a value indicating whether a property can be set. yii\base\BaseObject
className() Returns the fully qualified name of this class. yii\base\BaseObject
commit() Commit a transaction. yii\mongodb\Transaction
getIsActive() Returns a value indicating whether this transaction is active. yii\mongodb\Transaction
getState() Returns the transaction state. yii\mongodb\Transaction
hasMethod() Returns a value indicating whether a method is defined. yii\base\BaseObject
hasProperty() Returns a value indicating whether a property is defined. yii\base\BaseObject
init() Initializes the object. yii\base\BaseObject
rollBack() Rolls back a transaction. yii\mongodb\Transaction
start() Start a transaction if session is not in transaction process. yii\mongodb\Transaction

Protected Methods

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Method Description Defined By
yiiBeginProfile() Begin profile if enableProfiling property is enable in yii\mongodb\Connection yii\mongodb\Transaction
yiiDebug() Set debug message if enableLogging property is enable in yii\mongodb\Connection yii\mongodb\Transaction
yiiEndProfile() End profile if enableProfiling property is enable in yii\mongodb\Connection yii\mongodb\Transaction

Constants

Hide inherited constants

Constant Value Description Defined By
STATE_ABORTED 'aborted' yii\mongodb\Transaction
STATE_COMMITTED 'committed' yii\mongodb\Transaction
STATE_NONE 'none' yii\mongodb\Transaction
STATE_STARTING 'starting' yii\mongodb\Transaction

Property Details

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$clientSession public property

Class represents a client session and Commands, queries, and write operations may then be associated the session.

See also https://www.php.net/manual/en/class.mongodb-driver-session.php.

public \yii\mongodb\MongoDB\Driver\Session $clientSession = null
$isActive public property

Whether this transaction is active. Only an active transaction can commit() or rollBack().

public boolean $isActive = null
$state public read-only property
public void getState ( )

Method Details

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__call() public method

Defined in: yii\base\BaseObject::__call()

Calls the named method which is not a class method.

Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.

public mixed __call ( $name, $params )
$name string

The method name
$params array

Method parameters
return mixed

The method return value
throws yii\base\UnknownMethodException

when calling unknown method

 

                public function __call($name, $params)
{
    throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}
__construct() public method

Defined in: yii\base\BaseObject::__construct()

Constructor.

The default implementation does two things:

  • Initializes the object with the given configuration $config.
  • Call init().

If this method is overridden in a child class, it is recommended that

  • the last parameter of the constructor is a configuration array, like $config here.
  • call the parent implementation at the end of the constructor.
public void __construct ( $config = [] )
$config array

Name-value pairs that will be used to initialize the object properties

 

                public function __construct($config = [])
{
    if (!empty($config)) {
        Yii::configure($this, $config);
    }
    $this->init();
}
__get() public method

Defined in: yii\base\BaseObject::__get()

Returns the value of an object property.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $object->property;.

See also __set().

public mixed __get ( $name )
$name string

The property name
return mixed

The property value
throws yii\base\UnknownPropertyException

if the property is not defined
throws yii\base\InvalidCallException

if the property is write-only

 

                public function __get($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter();
    } elseif (method_exists($this, 'set' . $name)) {
        throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
    }
    throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}
__isset() public method

Defined in: yii\base\BaseObject::__isset()

Checks if a property is set, i.e. defined and not null.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($object->property).

Note that if the property is not defined, false will be returned.

See also https://www.php.net/manual/en/function.isset.php.

public boolean __isset ( $name )
$name string

The property name or the event name
return boolean

Whether the named property is set (not null).

 

                public function __isset($name)
{
    $getter = 'get' . $name;
    if (method_exists($this, $getter)) {
        return $this->$getter() !== null;
    }
    return false;
}
__set() public method

Defined in: yii\base\BaseObject::__set()

Sets value of an object property.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $object->property = $value;.

See also __get().

public void __set ( $name, $value )
$name string

The property name or the event name
$value mixed

The property value
throws yii\base\UnknownPropertyException

if the property is not defined
throws yii\base\InvalidCallException

if the property is read-only

 

                public function __set($name, $value)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter($value);
    } elseif (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
    } else {
        throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
    }
}
__unset() public method

Defined in: yii\base\BaseObject::__unset()

Sets an object property to null.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($object->property).

Note that if the property is not defined, this method will do nothing. If the property is read-only, it will throw an exception.

See also https://www.php.net/manual/en/function.unset.php.

public void __unset ( $name )
$name string

The property name
throws yii\base\InvalidCallException

if the property is read only.

 

                public function __unset($name)
{
    $setter = 'set' . $name;
    if (method_exists($this, $setter)) {
        $this->$setter(null);
    } elseif (method_exists($this, 'get' . $name)) {
        throw new InvalidCallException('Unsetting read-only property: ' . get_class($this) . '::' . $name);
    }
}
canGetProperty() public method

Defined in: yii\base\BaseObject::canGetProperty()

Returns a value indicating whether a property can be read.

A property is readable if:

  • the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);

See also canSetProperty().

public boolean canGetProperty ( $name, $checkVars = true )
$name string

The property name
$checkVars boolean

Whether to treat member variables as properties
return boolean

Whether the property can be read

 

                public function canGetProperty($name, $checkVars = true)
{
    return method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name);
}
canSetProperty() public method

Defined in: yii\base\BaseObject::canSetProperty()

Returns a value indicating whether a property can be set.

A property is writable if:

  • the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);

See also canGetProperty().

public boolean canSetProperty ( $name, $checkVars = true )
$name string

The property name
$checkVars boolean

Whether to treat member variables as properties
return boolean

Whether the property can be written

 

                public function canSetProperty($name, $checkVars = true)
{
    return method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name);
}
className() public static method
Deprecated since 2.0.14. On PHP >=5.5, use ::class instead.

Defined in: yii\base\BaseObject::className()

Returns the fully qualified name of this class.

public static string className ( )
return string

The fully qualified name of this class.

 

                public static function className()
{
    return get_called_class();
}
commit() public method

Commit a transaction.

See also https://www.php.net/manual/en/mongodb-driver-session.committransaction.php.

public void commit ( )

                public function commit()
{
    $this->yiiDebug('Committing mongodb transaction ...', __METHOD__);
    $this->clientSession->mongoSession->commitTransaction();
    $this->yiiEndProfile('mongodb > start transaction(session id => ' . $this->clientSession->getId() . ')');
    $this->yiiDebug('Commit mongodb transaction.', __METHOD__);
    $this->clientSession->db->trigger(Connection::EVENT_COMMIT_TRANSACTION);
}
getIsActive() public method

Returns a value indicating whether this transaction is active.

public boolean getIsActive ( )
return boolean

Whether this transaction is active. Only an active transaction can commit() or rollBack().

 

                public function getIsActive()
{
    return $this->clientSession->db->getIsActive() && $this->clientSession->getInTransaction();
}
getState() public method

Returns the transaction state.

public void getState ( )

                public function getState()
{
    return $this->clientSession->mongoSession->getTransactionState();
}
hasMethod() public method

Defined in: yii\base\BaseObject::hasMethod()

Returns a value indicating whether a method is defined.

The default implementation is a call to php function method_exists(). You may override this method when you implemented the php magic method __call().

public boolean hasMethod ( $name )
$name string

The method name
return boolean

Whether the method is defined

 

                public function hasMethod($name)
{
    return method_exists($this, $name);
}
hasProperty() public method

Defined in: yii\base\BaseObject::hasProperty()

Returns a value indicating whether a property is defined.

A property is defined if:

  • the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
  • the class has a member variable with the specified name (when $checkVars is true);

See also:

public boolean hasProperty ( $name, $checkVars = true )
$name string

The property name
$checkVars boolean

Whether to treat member variables as properties
return boolean

Whether the property is defined

 

                public function hasProperty($name, $checkVars = true)
{
    return $this->canGetProperty($name, $checkVars) || $this->canSetProperty($name, false);
}
init() public method

Defined in: yii\base\BaseObject::init()

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )

                public function init()
{
}
rollBack() public method

Rolls back a transaction.

See also https://www.php.net/manual/en/mongodb-driver-session.aborttransaction.php.

public void rollBack ( )

                public function rollBack()
{
    $this->yiiDebug('Rolling back mongodb transaction ...', __METHOD__);
    $this->clientSession->mongoSession->abortTransaction();
    $this->yiiEndProfile('mongodb > start transaction(session id => ' . $this->clientSession->getId() . ')');
    $this->yiiDebug('Roll back mongodb transaction.', __METHOD__);
    $this->clientSession->db->trigger(Connection::EVENT_ROLLBACK_TRANSACTION);
}
start() public method

Start a transaction if session is not in transaction process.

See also:

public void start ( $transactionOptions = [] )
$transactionOptions array

Options can be passed as argument to this method. Each element in this options array overrides the corresponding option from the "sessionOptions" option, if set when starting the session with ClientSession::start().

 

                public function start($transactionOptions = [])
{
    Command::prepareManagerOptions($transactionOptions);
    $this->yiiDebug('Starting mongodb transaction ...', __METHOD__);
    if ($this->clientSession->getInTransaction()) {
        throw new Exception('Nested transaction not supported');
    }
    $this->clientSession->db->trigger(Connection::EVENT_START_TRANSACTION);
    $this->yiiBeginProfile('mongodb > start transaction(session id => ' . $this->clientSession->getId() . ')');
    $this->clientSession->mongoSession->startTransaction($transactionOptions);
    $this->yiiDebug('MongoDB transaction started.', __METHOD__);
}
yiiBeginProfile() protected method

Begin profile if enableProfiling property is enable in yii\mongodb\Connection

protected void yiiBeginProfile ( $token, $category = 'mongodb' )
$token
$category 

                protected function yiiBeginProfile($token, $category = 'mongodb')
{
    if ($this->clientSession->db->enableProfiling) {
        Yii::beginProfile($token,$category);
    }
}
yiiDebug() protected method

Set debug message if enableLogging property is enable in yii\mongodb\Connection

protected void yiiDebug ( $message, $category = 'mongodb' )
$message
$category 

                protected function yiiDebug($message, $category = 'mongodb')
{
    if ($this->clientSession->db->enableLogging) {
        Yii::debug($message,$category);
    }
}
yiiEndProfile() protected method

End profile if enableProfiling property is enable in yii\mongodb\Connection

protected void yiiEndProfile ( $token, $category = 'mongodb' )
$token
$category 

                protected function yiiEndProfile($token, $category = 'mongodb')
{
    if ($this->clientSession->db->enableProfiling) {
        Yii::endProfile($token,$category);
    }
}