Creating a hierarchy from tags

Snomad · 08-22-2023, 07:23 AM

Hi all,

I'm downloading reasonably consistent/uniform tags from GoodReads using a plug-in, and I was wondering if there is an easy(ish) way to use the custom column template to sort them into a hierarchy?

For example, if a book has the tags, 'Fiction, Fantasy, Adventure, Fairytale, Pirate, Young Adult,' then the code would join them in a predefined way, such as 'Fiction.Fantasy.Fairytale, Fiction.Adventure.Pirate' so they would then be displayed as:

-Fiction
-Adventure
-Pirate
-Fantasy
-Fairytale

If anyone knows how to write this with these examples and briefly explain how to add further hierarchies, I'd be extremely grateful

ownedbycats · 08-22-2023, 11:26 AM

Take a look at the Tag Mapper. You might need to use Preferences > Toolbars & Menus to add it to a toolbar somewhere.

Snomad · 08-22-2023, 07:18 PM

I'd much prefer to use a composite column rather than edit the original tags themselves, so I still have the option to filter by them if I want to. If that is the only option for this though I'd have to really way up the pros and cons of it.

kjdavies · 09-12-2023, 02:34 AM

Quote:

Originally Posted by Snomad

I'd much prefer to use a composite column rather than edit the original tags themselves, so I still have the option to filter by them if I want to. If that is the only option for this though I'd have to really way up the pros and cons of it.

I'd be cautious about a composite column here. I've found they can do some very sad things for performance, when you get enough titles in the library. I had a library of tens of thousands that included several date fields. I created composite columns to format the dates as YYYY.MM.DD to make them more navigable, and performance absolutely tanked.

This might be solved in newer calibre, but I haven't tried this in a couple years.

theducks · 09-12-2023, 11:31 AM

Filter? The search bar is powerful: And, Or and Not can be used to build a search.
You can save searches.
You can use them to create a VL (Virtual Library).
All without the overhead of composite/calculated column has.

I also CLEAN and re-tag as there are quite a few Authors (Agents) That over load the Tags. (5 ways to represent Science Fiction

14 ways for Magic

)

I make them hierarchical . Base is the main topic. Then the category.
Science Fiction.Military (AKA Mil SF). Fantasy.Epic, Fantasy.Urban Do you really search for a specific type Fantasy creature??

I might include key characters as a tag, but not every one in the book.
Places if important (historically). If the story holds together in Anytown USA, why list the town?

IMHO 5 tags max for 95% of your library

And a simple 2nd search on spin-off series might cover the new main players in the overlaps .

BTW I do Series hierarchical also.
In many cases the spin-off is the second part. But I do have ONE custom Series column for when the spin-off gets its own life

Lean - mean will always have better performance

08-22-2023, 07:23 AM	#1
Snomad Member Posts: 10 Karma: 10 Join Date: Oct 2021 Device: Onyx Book	Creating a hierarchy from tags Hi all, I'm downloading reasonably consistent/uniform tags from GoodReads using a plug-in, and I was wondering if there is an easy(ish) way to use the custom column template to sort them into a hierarchy? For example, if a book has the tags, 'Fiction, Fantasy, Adventure, Fairytale, Pirate, Young Adult,' then the code would join them in a predefined way, such as 'Fiction.Fantasy.Fairytale, Fiction.Adventure.Pirate' so they would then be displayed as: -Fiction -Adventure -Pirate -Fantasy -Fairytale If anyone knows how to write this with these examples and briefly explain how to add further hierarchies, I'd be extremely grateful

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08-22-2023, 11:26 AM	#2
ownedbycats Custom User Title Posts: 9,563 Karma: 64960981 Join Date: Oct 2018 Location: Canada Device: Kobo Libra H2O, formerly Aura HD	Take a look at the Tag Mapper. You might need to use Preferences > Toolbars & Menus to add it to a toolbar somewhere.

08-22-2023, 07:18 PM	#3
Snomad Member Posts: 10 Karma: 10 Join Date: Oct 2021 Device: Onyx Book	I'd much prefer to use a composite column rather than edit the original tags themselves, so I still have the option to filter by them if I want to. If that is the only option for this though I'd have to really way up the pros and cons of it.

09-12-2023, 11:31 AM	#5
theducks Well trained by Cats Posts: 30,448 Karma: 58055868 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Filter? The search bar is powerful: And, Or and Not can be used to build a search. You can save searches. You can use them to create a VL (Virtual Library). All without the overhead of composite/calculated column has. I also CLEAN and re-tag as there are quite a few Authors (Agents) That over load the Tags. (5 ways to represent Science Fiction 14 ways for Magic ) I make them hierarchical . Base is the main topic. Then the category. Science Fiction.Military (AKA Mil SF). Fantasy.Epic, Fantasy.Urban Do you really search for a specific type Fantasy creature?? I might include key characters as a tag, but not every one in the book. Places if important (historically). If the story holds together in Anytown USA, why list the town? IMHO 5 tags max for 95% of your library And a simple 2nd search on spin-off series might cover the new main players in the overlaps . BTW I do Series hierarchical also. In many cases the spin-off is the second part. But I do have ONE custom Series column for when the spin-off gets its own life Lean - mean will always have better performance