Bug: Latin extended "Ł" letter being put on the end of the list

Hello,

(1) recently we discovered that names starting from letter Ł are being put on the end of the list and they are missing when filtered by letter in Alpha Index. Please go to the end of the list on this link: www.um.ostrowiec.pl/pl/samorzad/ksiega-kontaktow and there You can see the Ł names.

The Ł should be after L letter. (2) Also is there possibility to separate the extended letters from normal in the Alpha Index module? They may seem as a similar letters but they are not.

(3) There's also other small problem. If You go here: www.um.ostrowiec.pl/pl/samorza...taktow?searchphrase=starts&q=Z
You can see that Żak is before Zarzycki when again properly they are not same letters and the Ż names should start after all Z names. So list should look like: Zarzycki; Zawadzka; Żak; Żułtek

Sincerely,
Thomas Kolasa

Dear Thomas,

I'm not really Familiar with Polish character, however in order to solve this I need to know which collation is set the name field in the database table #__ce_details (replace #__ with your database table prefix).

Can you create a backup and try to change it to "utf8mb4_unicode_ci" for testing purposes?

Best regards,

Currnetly utf8_general_ci. After I change it to utf8mb4_unicode_ci how can I check if everything works fine?

Dear Thomas,

After the change, visit your site again and it should be fixed.
You can use the SQL query below, just replace the #__ with your Joomla database table prefix:
I have tested locally and it works.

PS: Don't forget to create a backup first.

Best regards,

Thank You Douglas! The list is properly sorted. You can check it out live.

But this is solution to first issue (1), what about the second and third. And now if You click on L letter ( www.um.ostrowiec.pl/pl/samorza...taktow?searchphrase=starts&q=L ) you won't see the Ł names. So practically You can't find the Ł names if You would check every letter in Alpha Index module.

Dear Thomas,

In my tests the "Ł" letter is treated as a different letter now and the "Ż" is treated as Z, therefore you have to add these letters to the Alpha Index Module.
Replace the Letter list with: A,B,C,D,E,F,G,H,I,J,K,L,Ł,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z

Best regards,

Hello Douglas,

Ł letter is separated! Nice, thank You. But now there's a problem with the "Ż" letter. The letter is available in the list, but names starting on Ż are displayed under Z.
www.um.ostrowiec.pl/pl/samorza...taktow?searchphrase=starts&q=Z

Sincerely,
Thomas

Dear Thomas,

That's how the utf8mb4_unicode_ci collate works. It interprets Ł as a different letter and the Ż as a variation of Z, therefore the Ż will show with the Z.

It is the same with Portuguese. All accented letters like Á,É,Í,Ó,Ú and all other variations will not display as a separate letter.

Best regards,

That's bad Douglas now there's inconsistency because Ł is not treated in similar way like Ż. Is there a possibility to have Ł names under L letter and Ż under Z (as it is right now)? They should be under similar letters or separated.

Sincerely,
Thomas

Dear Thomas,

Please execute this SQL query below in order to change the collate to a specific Polish collate:
Replace the #__ with your Joomla database table prefix.

I have tested locally and it works, but don't forget to create a backup first.

Best regards,

Awesome! Thank You Douglas! Your the man!