provide a new RichString attribute type The follwing declaration: class Card(EntityType): content = RichString(fulltextindexed=True, default_format='text/rest') is equivalent to : class Card(EntityType): content_format = String(meta=True, internationalizable=True, default='text/rest', constraints=[format_constraint]) content = String(fulltextindexed=True)

class ToTo(EntityType):
    permissions = {
        'read': ('managers',),
        'add': ('managers',),
        'update': ('managers',),
        'delete': ('managers',),
        }
    attr = String()
    
class attr(RelationType):
    permissions = {
        'read': ('managers', ),
        'add': ('managers', RRQLExpression('S bla Y'),),
        'delete': ('managers',),
        }