Complex store queries

Merlijn Sebrechts merlijn.sebrechts at
Mon Oct 24 11:15:48 UTC 2016

+1 for "which charms use this layer" queries. This has a number of uses:

- for finding what the quality of a layer is (more use in recommended
charms = better quality)
- for the maintainer of a layer so he can see what the impact is of a
change on his layer
- to see which charms have to be rebuilt if a vulnerability has been found
in a layer

2016-10-18 16:55 GMT+02:00 Ondřej Kuzník <ondrej.kuznik at>:

> Hi,
> developing new charms or just exploring the store, one might want to
> raise random queries like "which charms use a layer x", "which charms
> are subordinate" and some others. Are there any plans to add those,
> concerns why this might not be a good idea?
> While the store could extend the API to include these, I presume it
> would just be an addition to a hardcoded list. Another option would be
> for someone to scrape the store to PostgreSQL or a document DB of some
> sort that could be searched with rather arbitrary queries (and a few
> indexes for the more common ones).
> My first reaction is that such a scraper would be frowned upon as it
> might not have a way to update its database intelligently and keep
> hitting all sorts of rate limits imposed by the store, but I might be
> wrong here.
> Any thoughts on this?
> Thanks,
> Ondrej
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