class ICSVSourceFields(ITitledContent): file = silvaschema.Bytes(title=_("file"), description=_("File to upload as source data."), required=True) data_encoding = schema.Choice( title=_("character encoding"), description=_('Character encoding of the source data.'), source=encoding_source, required=False)
class IImageAddFields(ITitledContent): image = silvaschema.Bytes(title=_("Image"), required=True)
class IFileAddFields(ITitledContent): file = silvaschema.Bytes(title=_(u"File"), required=True)