original_string: public function order_by($property, $direction = 'ASC')
  	{
  		if (is_array($property))
  		{
  			foreach ($property as $p => $d)
  			{
  				if (is_int($p))
  				{
  					is_array($d) ? $this->order_by($d[0], $d[1]) : $this->order_by($d, $direction);
  				}
  				else
  				{
  					$this->order_by($p, $d);
  				}
  			}
  			return $this;
  		}
  
  		// prefix table alias when not yet prefixed and not a DB expression object
  		if ( ! $property instanceof \Fuel\Core\Database_Expression and strpos($property, '.') === false)
  		{
  			$property = $this->alias.'.'.$property;
  		}
  
  		$this->order_by[] = array($property, $direction);
  
  		return $this;
  	}
code: public function order_by($property, $direction = 'ASC')
  	{
  		if (is_array($property))
  		{
  			foreach ($property as $p => $d)
  			{
  				if (is_int($p))
  				{
  					is_array($d) ? $this->order_by($d[0], $d[1]) : $this->order_by($d, $direction);
  				}
  				else
  				{
  					$this->order_by($p, $d);
  				}
  			}
  			return $this;
  		}
  
  		// prefix table alias when not yet prefixed and not a DB expression object
  		if ( ! $property instanceof \Fuel\Core\Database_Expression and strpos($property, '.') === false)
  		{
  			$property = $this->alias.'.'.$property;
  		}
  
  		$this->order_by[] = array($property, $direction);
  
  		return $this;
  	}
code_tokens: public function order_by ( $ property , $ direction = 'ASC' ) { if ( is_array ( $ property ) ) { foreach ( $ property as $ p => $ d ) { if ( is_int ( $ p ) ) { is_array ( $ d ) ? $ this -> order_by ( $ d [ 0 ] , $ d [ 1 ] ) : $ this -> order_by ( $ d , $ direction ) ; } else { $ this -> order_by ( $ p , $ d ) ; } } return $ this ; } // prefix table alias when not yet prefixed and not a DB expression object if ( ! $ property instanceof \ Fuel \ Core \ Database_Expression and strpos ( $ property , '.' ) === false ) { $ property = $ this -> alias . '.' . $ property ; } $ this -> order_by [ ] = array ( $ property , $ direction ) ; return $ this ; }
docstring: Set the order_by
  
  @param   string|array  $property
  @param   string        $direction
  
  @return  $this
docstring_tokens: Set the order_by