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Old 08-21-2012, 11:16 PM   #1
davidfor
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Shelf names

I would like some information from someone with a Touch running firmware 2.0.0 or later that is setup to use a language other than English.

In the SQLite database on the Touch, there is table called "Shelf". This holds a row for each shelf that you create. It also holds a row for the "Shortlist" and the "Wishlist". In fact, in the database, these are in no way different to any other shelf.

What I am interested in, is what values are in two of the columns for these shelves. The table has two name columns. One is "InternalName" and the other "Name". In the English version, these columns hold the same value for all shelves. This is the name you entered when creating the shelf. So, for the "Shortlist" shelf, both are set to "Shortlist".

What I would like to know, is if this is different in other languages. I know how I would have done it, but I am curious to see how Kobo did.

So, what I would like, is for someone running a non-English Touch with firmware 2.0.0 or later, to add a book or two to the Shortlist and Wishlist. Then have a look in the database on the Touch and report the values. Giving me a copy of the database after adding the books would also be handy, but I can understand if people don't want to do that.

Thanks for any help.
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Old 08-22-2012, 08:26 AM   #2
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Unless they've done something very, very funky with their SQL implementation, I'd expect the two to be identical, unless you choose to use unicode characters in the shelf name.

My Touch is in English, so I'm not going to try anything directly, but I suspect that if you use unicode (Chinese, Japanese, Greek & possibly accented characters) in your names, the two will differ
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Old 08-22-2012, 10:06 AM   #3
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But, if they are identical, why have them?

I hadn't thought about unicode. I was more thinking that for the Shortlist and Wishlist, that one would be the local word and used for display. The other would be the same every where used for linking in the database or other code. There isn't anything else that differentiates these shelves from the others.
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Old 08-22-2012, 10:52 AM   #4
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Quote:
Originally Posted by davidfor View Post
But, if they are identical, why have them?
There is a fair bit of duplication and inefficiency on the Kobo Touch database.

It's possible that there may be some past or future need for the two fields.
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Old 08-22-2012, 06:09 PM   #5
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Quote:
Originally Posted by davidfor View Post
But, if they are identical, why have them?

I hadn't thought about unicode. I was more thinking that for the Shortlist and Wishlist, that one would be the local word and used for display. The other would be the same every where used for linking in the database or other code. There isn't anything else that differentiates these shelves from the others.
Basically, searching for a unicode string requires a different SQL setup and query to a non-unicode string
Lazy SQL programming (Or outdated toolsets) basically means that you only implement the non-unicode search method, and pull the 'real' unicode string from a separate field.
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Old 08-22-2012, 07:58 PM   #6
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Quote:
Originally Posted by leezer3 View Post
Basically, searching for a unicode string requires a different SQL setup and query to a non-unicode string
Lazy SQL programming (Or outdated toolsets) basically means that you only implement the non-unicode search method, and pull the 'real' unicode string from a separate field.
True, but the way the columns are used makes me question this.

As I said, there are two name columns in the table Shelf: InternalName and Name. In the ShelfContent table, there is column ShelfName.

If you add a shelf, a row gets inserted with the two names the same. If you put a book on a shelf, a row for that book with the shelf name gets created. When I first looked at this, I assumed the join was Shelf.InternalName with ShelfContent.Name. But in my experiments, I have change the value of both InternalName and Name. The changes to InternalName didn't affect anything. Changing Name changed the name that was displayed on the shelf list. And it broke the link to the ShelfContents. No books where shown on the list.

I'm beginning to suspect that murg is right and that it is a leftover from an earlier design. But maybe I'll be optimistic and say that it is planning for a future super-duper enhancement.

And there is a reason for this beyond idle curiosity.
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Old 08-22-2012, 11:03 PM   #7
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When I finish the book I am on I will do a reset and change languages and see what changes.
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Old 08-23-2012, 12:42 AM   #8
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I tried a factory reset (back to 1.9.6) then did setup; was not able to change language until after the setup was complete (and the upgrade done to 2.0.0 R41166, 12.07.12).

Picked German and then added a book to the Shortlist.

Shelf name still shows as Shortlist.

DB Dump shows
Code:
INSERT INTO "Shelf" VALUES('2012-06-28T04:42:23Z','051b207e-882b-49eb-829a-a6e6bc80f6eb','Wishlist','2012-08-06T04:18:43Z','Wishlist','Custom','false','true','t
rue');
INSERT INTO "Shelf" VALUES('2012-08-23T04:10:21Z',NULL,'Shortlist','2012-08-23T04:10:21Z','Shortlist',NULL,'false','true','false');
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Old 08-23-2012, 12:58 AM   #9
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That was quick reading. Or was it a short book?

While I was waiting I did try changing the language to French in the settings. It still used "Shortlist" for the shelf and in the database. But adding a book to the shortlist displayed a message in French.

That makes it look like they are handling the names in code.
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Old 08-23-2012, 01:12 AM   #10
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I was about 1/2 through the book so just power read... and phew.... this time was still within the ADE device limit count
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Old 08-26-2012, 04:45 AM   #11
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Well, I stumbled on a problem last night if the InternalName and the Name is different for a shelf. You can't delete it. Matched them up again, and they deleted with no problems
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