How to set logic 'AND' for taxonomies terms of the same taxonomy - MDTF - WordPress Meta Data Filter & Taxonomies Filter

How to set logic ‘AND’ for taxonomies terms of the same taxonomy

This works for shortcode [mdf_custom custom_id=777] with attribute 'custom_id' (777 is in the code below) + doesn work with dynamic recount (you can hide count by CSS)
Example: http://general.wp-filter.com/category/flowers-posts/
open your current wp theme functions.php file

drop there next code:

//***
add_filter('mdf_custom_shortcode_query_args', 'mdf_custom_shortcode_query_args', 10, 2);

function mdf_custom_shortcode_query_args($args, $custom_id)
{
    $and_tax_relation = array('post_tag');
    //https://codex.wordpress.org/WordPress_Taxonomy
    if ($custom_id == '777')
    {
        $args['tax_query'] = mdf_modify_tax_query($args['tax_query'], $and_tax_relation);        
        //add_filter('mdf_dyn_tax_recount_args', 'mdf_dyn_tax_recount_args', 10, 1);
    }

    return $args;
}

//*** for dynamic recount
add_filter('mdf_dyn_tax_recount_args', 'mdf_dyn_tax_recount_args', 10, 1);
function mdf_dyn_tax_recount_args($tax_query_array)
{
    $and_tax_relation = array('post_tag');
    return mdf_modify_tax_query($tax_query_array, $and_tax_relation);
}

//logic of AND relations in taxonomies
function mdf_modify_tax_query($tax_query_array, $and_tax_relation)
{
    if (!empty($tax_query_array))
    {
        foreach ($tax_query_array as $key =&gt; $value)
        {
            if (isset($value['taxonomy']))
            {
                if (in_array($value['taxonomy'], $and_tax_relation))
                {
                    $tag_terms = $tax_query_array[$key]['terms'];

                    if (!empty($tag_terms))
                    {
                        $tag_terms_tpl = $tax_query_array[$key];
                        $tag_terms_tpl['terms'] = array();
                        unset($tax_query_array[$key]);
                        foreach ($tag_terms as $term_id)
                        {
                            $tag_terms_tpl['terms'] = array($term_id);
                            $tax_query_array[] = $tag_terms_tpl;
                        }
                    }
                }
            }
        }
    }

    return $tax_query_array;
}

//***

add_filter('mdf_custom_shortcode_query_args', 'mdf_custom_shortcode_query_args', 10, 2);

function mdf_custom_shortcode_query_args($args, $custom_id)

{

$and_tax_relation = array('post_tag');

//https://codex.wordpress.org/WordPress_Taxonomy

if ($custom_id == '777')

{

$args['tax_query'] = mdf_modify_tax_query($args['tax_query'], $and_tax_relation);

//add_filter('mdf_dyn_tax_recount_args', 'mdf_dyn_tax_recount_args', 10, 1);

}

return $args;

}

//*** for dynamic recount

add_filter('mdf_dyn_tax_recount_args', 'mdf_dyn_tax_recount_args', 10, 1);

function mdf_dyn_tax_recount_args($tax_query_array)

{

$and_tax_relation = array('post_tag');

return mdf_modify_tax_query($tax_query_array, $and_tax_relation);

}

//logic of AND relations in taxonomies

function mdf_modify_tax_query($tax_query_array, $and_tax_relation)

{

if (!empty($tax_query_array))

{

foreach ($tax_query_array as $key => $value)

{

if (isset($value['taxonomy']))

{

if (in_array($value['taxonomy'], $and_tax_relation))

{

$tag_terms = $tax_query_array[$key]['terms'];

if (!empty($tag_terms))

{

$tag_terms_tpl = $tax_query_array[$key];

$tag_terms_tpl['terms'] = array();

unset($tax_query_array[$key]);

foreach ($tag_terms as $term_id)

{

$tag_terms_tpl['terms'] = array($term_id);

$tax_query_array[] = $tag_terms_tpl;

}

return $tax_query_array;

}

In the function mdf_dyn_tax_recount_args in array $and_tax_relation write your taxonomy instead 'post_tag' OR using comma add more another taxonomies ...
Works from version 2.2.1/1.2.1
Just a video for one the client: https://drive.google.com/file/d/0B4zUhfhZlonlMUNRNTA5RTZJQU0/view

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