Sorting Taxonomies

[JacobDorman]

The query created when attempting sortable admin columns using automatic taxonomies doesn't work:

array (
    'order' => 'asc',
    'orderby' => 'meta_value',
    'posts_per_page' => 200,
    'post_type' => 'sm-item',
    'meta_key' => 'sm-item-section',
)

Wasn't clear from the docs that only meta values were supported.

Might be a workable solution here:
http://wordpress.stackexchange.com/questions/14306/using-wp-query-is-it-possible-to-orderby-taxonomy

[3runoDesign]

Hey man... Attempted to replace 'orderby' => 'meta_value' by 'orderby' => 'meta_value_num'. @JacobDorman

[jjgrainger]

The class is generating the wrong query, it should be more along the lines of:

array(
    'order' => 'asc'
    'orderby' => 'sm-item-section'
    'post_type' => 'sm-item'
    'posts_per_page' => 200
)

Where orderby is the taxonomy name. I'll fix that in the class.

However, this wouldn't make taxonomies sortable on its own. To get it working you would need a post_clauses filter too.

After reading of the stackoverflow and in particular this answer I'm skeptical about adding the posts_clauses filter to the class.

Taxonomies aren't really meant to be sorted, they are used for grouping, not ordering. I can see that it might be possible and useful in some cases, but not all.

I'll need to look into it more.