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@wunderdojo
Created March 31, 2016 17:50
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ACF 5 Custom Location Rule using Taxonomy Name and Slug
<?php
//-http://www.advancedcustomfields.com/resources/custom-location-rules/
//- Create new rule type in the Location rules section
add_filter( 'acf/location/rule_types', 'acf_location_rules_types' );
function acf_location_rules_types( $choices ){
$choices['Post']['taxonomy_slug'] = 'Fee Type';
return $choices;
}
//- Populate the values for the new rule type
add_filter( 'acf/location/rule_values/taxonomy_slug', 'acf_location_rules_values_taxonomy_slug' );
function acf_location_rules_values_taxonomy_slug( $choices ){
$fee_types = get_terms( 'fees', array( 'hide_empty'=>false ) );
if( $fee_types ){
foreach ( $fee_types as $type ) {
$choices[$type->slug] = $type->name;
}
}
return $choices;
}
//- Apply the rule filters when displaying a product edit screen
add_filter( 'acf/location/rule_match/taxonomy_slug', 'acf_location_rules_match_taxonomy_slug', 10, 3 );
function acf_location_rules_match_taxonomy_slug( $match, $rule, $options ){
//- validate
if( !$options['post_id'] ){
return false;
}
//- post type
if( !$options['post_type'] ) {
$options['post_type'] = get_post_type( $options['post_id'] );
}
//- vars
$taxonomies = get_object_taxonomies( $options['post_type'] );
$terms = $options['post_taxonomy'];
//- not AJAX -- we're loading the post initially
if( ! $options['ajax'] ) {
//- no terms? Load them from the post_id
if( empty( $terms ) ) {
if( is_array( $taxonomies ) ) {
foreach( $taxonomies as $tax ) {
$all_terms = get_the_terms( $options['post_id'], $tax );
if( $all_terms ) {
foreach( $all_terms as $all_term ) {
$terms[] = $all_term->term_id;
}
}
}
}
}
//- no terms at all?
if( empty( $terms ) ){
//- If no terms, this is a new post and should be treated as if it has the "Uncategorized" (1) category ticked
if( is_array( $taxonomies ) && in_array( 'category', $taxonomies ) ) {
$terms[] = '1';
}
}
}//-end of non-ajax rules application
//- each product should only have one fee category but ACF returns an array with the first value empty
//- Ex: array( 0 => , 1 => 8 );
$match_term = array_pop( $terms );
$term = get_term_by( 'id', $match_term, 'fees' );
if( $rule['operator'] == "==" ) {
$match = false;
if( $term ){
if( $rule['value'] == $term->slug ){
$match = true;
}
}
}
elseif( $rule['operator'] == "!=" ) {
$match = true;
if( $term ) {
if( $rule['value'] != $term->slug ) {
$match = true;
}
}
}
return $match;
}
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