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Old 05-20-2017, 10:28 AM   #76
davidfor
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Posts: 24,905
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Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by compurandom View Post
As someone pointed out, this makes the database bigger.
Howevever, I've already got one that I'm no longer using that I needed for a device I no longer have, so it looks like that will get repurposed.
A custom column built from others does not increase the database size. It will affect performance whenever it is used. If it isn't normally displayed, then it doesn't have affect. As to the database size, you would need to add a tag to a very large number of books to make a noticeable difference in the size of the database. The tag names are store in one table, the connection between them is another table which is simply three integers for each book-tag combination.

But, I might have misunderstood what you want. I interpreted it as wanting to put news article into collections using their tags, but not use the tags for other books. Were you trying to do something else?
Quote:
I found I also have a template in my plugboard that manipulates tags during device send, but it looks like the kobo extended driver ignores that, which is unfortunate, because if it used it, I wouldn't need the custom column.
Are you using the plugboard for the KoboTouchDriver? I'm sure I have used it in the past. And you will need to select epub as the format. But, this won't help with the collections. The collections management is independent of what the plugboard does.
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