/**
  * Return the amount of objects that satisfy a given criteria
  * @param $criteria  An TCriteria object, specifiyng the filters
  * @return           An Integer containing the amount of objects that satisfy the criteria
  */
 public function count(TCriteria $criteria = NULL)
 {
     if (!$criteria) {
         $criteria = isset($this->criteria) ? $this->criteria : new TCriteria();
     }
     // creates a SELECT statement
     $sql = new TSqlSelect();
     $sql->addColumn('count(*)');
     $sql->setEntity($this->getEntity());
     // assign the criteria to the SELECT statement
     $sql->setCriteria($criteria);
     // get the connection of the active transaction
     if ($conn = TTransaction::get()) {
         // register the operation in the LOG file
         TTransaction::log($sql->getInstruction());
         $dbinfo = TTransaction::getDatabaseInfo();
         // get dbinfo
         if (isset($dbinfo['prep']) and $dbinfo['prep'] == '1') {
             $result = $conn->prepare($sql->getInstruction(TRUE), array(PDO::ATTR_CURSOR => PDO::CURSOR_FWDONLY));
             $result->execute($criteria->getPreparedVars());
         } else {
             // executes the SELECT statement
             $result = $conn->query($sql->getInstruction());
         }
         if ($result) {
             $row = $result->fetch();
         }
         // returns the result
         return $row[0];
     } else {
         // if there's no active transaction opened
         throw new Exception(AdiantiCoreTranslator::translate('No active transactions') . ': ' . __METHOD__ . ' ' . $this->getEntity());
     }
 }
Beispiel #2
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 /**
  * Delete an Active Record object from the database
  * @param [$id]     The Object ID
  * @exception       Exception if there's no active transaction opened
  */
 public function delete($id = NULL)
 {
     $class = get_class($this);
     // discover the primary key name
     $pk = $this->getPrimaryKey();
     // if the user has not passed the ID, take the object ID
     $id = $id ? $id : $this->{$pk};
     // creates a DELETE instruction
     $sql = new TSqlDelete();
     $sql->setEntity($this->getEntity());
     // creates a select criteria
     $criteria = new TCriteria();
     $criteria->add(new TFilter($pk, '=', $id));
     // assign the criteria to the delete instruction
     $sql->setCriteria($criteria);
     // get the connection of the active transaction
     if ($conn = TTransaction::get()) {
         // register the operation in the LOG file
         TTransaction::log($sql->getInstruction());
         $dbinfo = TTransaction::getDatabaseInfo();
         // get dbinfo
         if (isset($dbinfo['prep']) and $dbinfo['prep'] == '1') {
             $result = $conn->prepare($sql->getInstruction(TRUE), array(PDO::ATTR_CURSOR => PDO::CURSOR_FWDONLY));
             $result->execute($criteria->getPreparedVars());
         } else {
             // execute the query
             $result = $conn->query($sql->getInstruction());
         }
         unset($this->data);
         if ($cache = $this->getCacheControl()) {
             $record_key = $class . '[' . $id . ']';
             if ($cache::delValue($record_key)) {
                 TTransaction::log($record_key . ' deleted from cache');
             }
         }
         // return the result of the exec() method
         return $result;
     } else {
         // if there's no active transaction opened
         throw new Exception(AdiantiCoreTranslator::translate('No active transactions') . ': ' . __METHOD__ . ' ' . $this->getEntity());
     }
 }