Zend_Db_Table Utilisation d'un adaptateur de connexion différent pour la lecture et l'écriture

Question

Dans un projet ZF en cours, je dois utiliser diffrent DB Connections pour lire et écrire. Mon approuch était le faire en étendant Zend_Db_Table_Abstract (et Zend_Db_Table_Row_Abstract)

Il ressemble à ceci au moment:

class SomeNamespace_Db_Table extends Zend_Db_Table_Abstract { 
/** 
* @var Zend_Db 
*/ 
protected $read = NULL; 

/** 
* @var Zend_Db 
*/ 
protected $write = NULL; 

/** 
* Constructor. 
* 
* Supported params for $config are: 
* - db    = user-supplied instance of database connector, 
*      or key name of registry instance. 
* - name   = table name. 
* - primary   = string or array of primary key(s). 
* - rowClass  = row class name. 
* - rowsetClass  = rowset class name. 
* - referenceMap = array structure to declare relationship 
*      to parent tables. 
* - dependentTables = array of child tables. 
* - metadataCache = cache for information from adapter describeTable(). 
* 
* @param mixed $config Array of user-specified config options, or just the Db Adapter. 
* @return void 
*/ 
public function __construct($config=array()){  
    $this->read = Zend_Registry::get('read'); 
    $this->write = Zend_Registry::get('write'); 

    $config['db'] = $this->read;    
    return parent::__construct($config); 
} 

/** 
* Inserts a new row. 
* 
* @param array $data Column-value pairs. 
* @return mixed   The primary key of the row inserted. 
*/  
public function insert(array $data){ 
    $this->setAdapter($this->write); 
    $result = parent::insert($data); 
    $this->setAdapter($this->read); 

    return $result; 
} 

/** 
* Updates existing rows. 
* 
* @param array  $data Column-value pairs. 
* @param array|string $where An SQL WHERE clause, or an array of SQL WHERE clauses. 
* @return int   The number of rows updated. 
*/  
public function update(array $data, $where){ 
    $this->setAdapter($this->write); 
    $result = parent::update($data,$where); 
    $this->setAdapter($this->read); 

    return $result; 
} 

/** 
* Fetches a new blank row (not from the database). 
* 
* @param array $data OPTIONAL data to populate in the new row. 
* @param string $defaultSource OPTIONAL flag to force default values into new row 
* @return Zend_Db_Table_Row_Abstract 
*/  
public function createRow(array $data = array(), $defaultSource = NULL){ 
    $this->setAdapter($this->write); 
    $result = parent::createRow($data, $defaultSource); 
    $this->setAdapter($this->read); 

    return $result; 
} 

/** 
* Deletes existing rows. 
* 
* @param array|string $where SQL WHERE clause(s). 
* @return int   The number of rows deleted. 
*/  
public function delete($where){ 
    $this->setAdapter($this->write); 
    $result = parent::delete($where); 
    $this->setAdapter($this->read);  

    return $result; 
} 

/** 
* Allow to set current used connection 
* from Enalog_Db_Table_Row 
* 
* @param Zend_Db $db 
*/  
public function setAdapter($db){ 
    $this->_db = self::_setupAdapter($db); 
    return $this; 
} 

}

à mon goût c'est bien trop cher code redondant. (Dans Zend_Db_Table_Row, je devrai aussi écraser les méthodes save et setFromArray)

Des suggestions? La commutation entre les deux DB Connections doit être aussi transparente que possible.

TIA Rufin

Answer 1

Votre code semble assez bon. Votre sous-classe doit de toute façon intercepter chaque méthode applicable, et je ne vois pas comment les bugs vont se glisser. La grande question: est-ce que le code fait l'affaire?

Answer 2

Il y a une autre façon de faire, montré here

Answer 3

J'ai trouvé cet article http://www.amazium.com/blog/using-different-databases-with-zend-framework qui vous permet d'utiliser des cartes de connexion différentes Zend_Db_Table.