Puck Meerburg e6b9af039b Support new local changes 1 week ago
migrations Add queue implementation into Cellar 1 month ago
src Support new local changes 1 week ago
.gitignore Initial commit of the Cellar 2 months ago
Cargo.toml Write a little code for collection support, move entity store from tap to cellar 2 months ago
README.md Initial commit of the Cellar 2 months ago

README.md

Kroeg Cellar

(I'd have called this kroeg-kelder but that'd probably go too far)

Simple JSON-LD storage mechanism, storing everything in a database of RDF quads.

Usage

This code is made mostly to work inside of Kroeg, but the external API is documented with rustdoc, which isn't publicly generated yet. Clone therepo then run cargo doc to do it yourself.

Design

The database currently stores its data in two tables:

Attribute

This table maps an ID number to a URL, allowing for e.g. quick lookups and even quicker renaming of objects (just change its value in this table, and everything automatically updates!)

Quad

This table is slightly complicated, as it has to support everything that RDF can:

  • id: unique ID for the quad.
  • quad_id, subject_id, predicate_id: These point into the Attribute table, fort the corresponding RDF quad attributes.

  • attribute_id: used if object points to another ID.

  • object, type_id, language: The value, and type or language of the quad. The code only supports language or type_id being set, both of them being set is unsupported.