public function addRev($relation, $value)
        {
            if (is_string($relation)) {
                $this->_rev[$relation] = $value;
            }

            return $this;
        }
public function addRev($relation, $value)
        {
            if (is_string($relation)) {
                $this->_rev[$relation] = $value;
            }

            return $this;
        }
public function addRev ( $ relation , $ value ) { if ( is_string ( $ relation ) ) { $ this -> _rev [ $ relation ] = $ value ; } return $ this ; }
Adds a reverse relation to the page

@param  string $relation      relation name (e.g. alternate, glossary,
canonical, etc)
@param  mixed  $value         value to set for relation
@return Page  fluent interface, returns self
Adds a reverse relation to the page