Dani Llewellyn

You cannot filter a terms list. The best way to show a specific set of children terms is to put those terms into their own taxonomy.

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In my experience most uses of parent->child terms are a result of putting multiple types of categorisation into a single taxonomy which is incorrect data architecture. For example, this is wrong: parent category called “videos” and child categories of “video type”; instead you should use a separate taxonomy called video-type, which is applied to a post-type called “videos”. The video-type taxonomy includes terms of each type of video, e.g. DVD, Blu Ray, Download..

For your example above you would create a new taxonomy called “A-Z Search” which includes each of the terms “ADHD”, “Anti-Aging”, “Autism”. Although creating a specific A-Z taxonomy is probably also the wrong way to go. You need to consider and implement a proper data architecture that categorises your posts. Your taxonomies should not create a cluster of terms specifically for the a-z-listing; nor should the taxonomies mash multiple types of taxonomy together. When you find yourself adding “child terms” consider whether it would be better to create a separate taxonomy (it usually is).

I’m sorry, but I don’t think I fully understand the question and what you are trying to achieve. Can you try to explain the question in more detail please?

The stack trace alone doesn’t show what went wrong. I’m guessing that you don’t have the mbstring PHP-module enabled on your server. Try enabling that module. If that doesn’t help I’ll need more of the error log from before the stack trace to see if there’s anything there to indicate what it’s failing with.

Yes, I planned ahead for this very eventuality. There’s a cryptic filter which can be hooked in your theme’s functions.php file.

The filter is a-z-listing-alphabet.

Add the following to your functions.php:

add_filter( 'a-z-listing-alphabet', 'add_spanish_N' );
function add_spanish_N( $alphabet ) {
  return 'AÁÀÄÂaáàäâ,Bb,Cc,Dd,EÉÈËÊeéèëê,Ff,Gg,Hh,IÍÌÏÎiíìïî,Jj,Kk,Ll,Mm,Nn,Ññ,OÓÒÖÔoóòöô,Pp,Qq,Rr,Ssß,Tt,UÚÙÜÛuúùüû,Vv,Ww,Xx,Yy,Zz';
}

The long string of letters is a list of each alphabetical character in your language, separated by commas , with the first letter in each group being the one used for titles and links. e.g. For the letter E the definition is EÉÈËÊeéèëê so any title beginning with one of those variants of the letter E will be included in the E group, and the title is E because that’s the first one in the group.

Hypothetically, if you or I were to put the E group as eEéÉèÈëËêÊ, then it will still match the same posts because the list contains all the same variants despite being ordered differently, but the group will be entitled e (lower-case) because that is the first letter in the new list.

I hope that makes sense.

Like your request for post-counts I’ll add the ability to alter the taxonomy query via a filter in 2.0.

Hi,

It looks like you’re using conflicting parameters. display=terms will show the terms themselves, not the posts associated with those terms. It isn’t possible to limit the terms displayed in this mode, which you’re attempting to do with terms="good, paris".

• This reply was modified 8 years ago by Dani Llewellyn.