Exemplo n.º 1
0
 /**
  * prepare passed string as statement or return cached if enabled and available
  *
  * @param PDO $db
  * @param string $statement
  * @return PDOStatement
  */
 protected static function prepareStatement(PDO $db, $statement)
 {
     if (self::isCacheStatements()) {
         if ($statement == self::SQL_INSERT) {
             if (null == self::$stmtInsert) {
                 self::$stmtInsert = $db->prepare($statement);
             }
             return self::$stmtInsert;
         } elseif ($statement == self::SQL_INSERT_AUTOINCREMENT) {
             if (null == self::$stmtInsertAutoIncrement) {
                 self::$stmtInsertAutoIncrement = $db->prepare($statement);
             }
             return self::$stmtInsertAutoIncrement;
         } elseif ($statement == self::SQL_UPDATE) {
             if (null == self::$stmtUpdate) {
                 self::$stmtUpdate = $db->prepare($statement);
             }
             return self::$stmtUpdate;
         } elseif ($statement == self::SQL_SELECT_PK) {
             if (null == self::$stmtSelect) {
                 self::$stmtSelect = $db->prepare($statement);
             }
             return self::$stmtSelect;
         } elseif ($statement == self::SQL_DELETE_PK) {
             if (null == self::$stmtDelete) {
                 self::$stmtDelete = $db->prepare($statement);
             }
             return self::$stmtDelete;
         }
     }
     return $db->prepare($statement);
 }