service = PostgreSQL
PostgreSQL.concept = attachment

[model.hasOne]
schedulable = schedulable.attachments

[before.create]
encodeCreateAttachment = modules/calendar/interceptors/DBMapping.php

[after.delete]
deleteAttachmentDependences = modules/calendar/interceptors/DBMapping.php

[PostgreSQL.mapping]
id = "id"
source = "source"
type = "type"
name = "name"
size = "size"