PHP Horde_Db_Adapter::isActive方法代码示例

 /**
  */
 public function write($id, $session_data)
 {
     if (!$this->_db->isActive()) {
         $this->_db->reconnect();
         $this->_db->beginDbTransaction();
     }
     /* Check if session exists. */
     try {
         $exists = $this->_db->selectValue(sprintf('SELECT 1 FROM %s WHERE session_id = ?', $this->_params['table']), array($id));
     } catch (Horde_Db_Exception $e) {
         return false;
     }
     /* Update or insert session data. */
     $session_data = new Horde_Db_Value_Binary($session_data);
     try {
         if ($exists) {
             $query = sprintf('UPDATE %s ' . 'SET session_data = ?, session_lastmodified = ? ' . 'WHERE session_id = ?', $this->_params['table']);
             $values = array($session_data, time(), $id);
             $this->_db->update($query, $values);
         } else {
             $query = sprintf('INSERT INTO %s ' . '(session_id, session_data, session_lastmodified) ' . 'VALUES (?, ?, ?)', $this->_params['table']);
             $values = array($id, $session_data, time());
             $this->_db->insert($query, $values);
         }
         $this->_db->commitDbTransaction();
     } catch (Horde_Db_Exception $e) {
         try {
             $this->_db->rollbackDbTransaction();
         } catch (Horde_Db_Exception $e) {
         }
         return false;
     }
     return true;
 }

 /**
  */
 public function write($id, $session_data)
 {
     if (!$this->_db->isActive()) {
         $this->_db->reconnect();
         $this->_db->beginDbTransaction();
     }
     /* Check if session exists. */
     try {
         $exists = $this->_db->selectValue(sprintf('SELECT 1 FROM %s WHERE session_id = ?', $this->_params['table']), array($id));
     } catch (Horde_Db_Exception $e) {
         return false;
     }
     /* Update or insert session data. */
     $values = array('session_data' => new Horde_Db_Value_Binary($session_data), 'session_lastmodified' => time());
     try {
         if ($exists) {
             $this->_db->updateBlob($this->_params['table'], $values, array('session_id = ?', array($id)));
         } else {
             $this->_db->insertBlob($this->_params['table'], array_merge(array('session_id' => $id), $values));
         }
         $this->_db->commitDbTransaction();
     } catch (Horde_Db_Exception $e) {
         try {
             $this->_db->rollbackDbTransaction();
         } catch (Horde_Db_Exception $e) {
         }
         return false;
     }
     return true;
 }

 /**
  */
 public function store($scope_ob)
 {
     if (!$this->_db->isActive()) {
         $this->_db->reconnect();
     }
     $charset = $this->_db->getOption('charset');
     // For each preference, check for an existing table row and
     // update it if it's there, or create a new one if it's not.
     foreach ($scope_ob->getDirty() as $name) {
         $value = $scope_ob->get($name);
         if (is_null($value)) {
             $this->remove($scope_ob->scope, $name);
         } else {
             $values = array($this->_params['user'], $name, $scope_ob->scope);
             // Does a row already exist for this preference?
             $query = 'SELECT 1 FROM ' . $this->_params['table'] . ' WHERE pref_uid = ? AND pref_name = ?' . ' AND pref_scope = ?';
             try {
                 $check = $this->_db->selectValue($query, $values);
             } catch (Horde_Db_Exception $e) {
                 throw new Horde_Prefs_Exception($e);
             }
             /* Driver has no support for storing locked status. */
             $value = Horde_String::convertCharset($value, 'UTF-8', $charset);
             $value = new Horde_Db_Value_Binary($value);
             if (empty($check)) {
                 // Insert a new row.
                 $query = 'INSERT INTO ' . $this->_params['table'] . ' ' . '(pref_uid, pref_scope, pref_name, pref_value) VALUES' . '(?, ?, ?, ?)';
                 $values = array($this->_params['user'], $scope_ob->scope, $name, $value);
                 try {
                     $this->_db->insert($query, $values);
                 } catch (Horde_Db_Exception $e) {
                     throw new Horde_Prefs_Exception($e);
                 }
             } else {
                 // Update the existing row.
                 $query = 'UPDATE ' . $this->_params['table'] . ' SET pref_value = ?' . ' WHERE pref_uid = ?' . ' AND pref_name = ?' . ' AND pref_scope = ?';
                 $values = array($value, $this->_params['user'], $name, $scope_ob->scope);
                 try {
                     $this->_db->update($query, $values);
                 } catch (Horde_Db_Exception $e) {
                     throw new Horde_Prefs_Exception($e);
                 }
             }
         }
     }
 }

 /**
  * Is the connection active?
  *
  * @return boolean
  */
 public function isActive()
 {
     return $this->_read->isActive() && $this->_write->isActive();
 }