[ckan-dev] MIN_TAG_LENGTH

Fri Oct 30 13:29:20 UTC 2015

Hi Harald,

What is the reason that not MIN_TAG_LENGTH = 1?
>

I don't know why this exists, my guess is that it has to do with the Solr
search, as all the tags are indexed and could create wrong search results.
Why not use something like chemical-formula-c?
Please consider the use case that someone else wants to harvest your data,
they might have to change this MIN_TAG_LENGTH. And depending on the context
"c" could mean different things.

> What is the proper way to override this constant?
>

You could monkey-patch it, but I would advice against it.

> Related: Why can't tags contain non-aphanumeric characters other than
> [_-.]? ( "Si(OH)4" would be nice.)
>

This is mainly because the tag is used as a URL slug. Nowadays there is not
strictly a limitation to alphanummeric characters in URLs, but it's still
better not to use them I guess. But you could use a tag vocabulary and
change the display_name of the tag.

- Stefan

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