name = 'acfe_advanced_link';
$this->label = __('Advanced Link', 'acfe');
$this->category = 'relational';
$this->defaults = array(
'post_type' => array(),
'taxonomy' => array(),
);
add_action('wp_ajax_acfe/fields/advanced_link/post_query', array($this, 'ajax_query'));
add_action('wp_ajax_nopriv_acfe/fields/advanced_link/post_query', array($this, 'ajax_query'));
$this->post_object = acf_get_field_type('post_object');
remove_action('acf/render_field/type=post_object', array($this->post_object, 'render_field'), 9);
add_action('acf/render_field/type=post_object', array($this, 'post_object_render_field'), 9);
parent::__construct();
}
function post_object_render_field($field){
// Change Field into a select
$field['type'] = 'select';
$field['ui'] = 1;
$field['ajax'] = 1;
$field['choices'] = array();
// load posts
$posts = $this->post_object->get_posts($field['value'], $field);
if($posts){
foreach(array_keys($posts) as $i){
// vars
$post = acf_extract_var($posts, $i);
// append to choices
$field['choices'][ $post->ID ] = $this->post_object->get_post_title($post, $field);
}
}
if(acf_maybe_get($field, '_name') === 'post' && !empty($field['value']) && !is_array($field['value']) && !is_numeric($field['value'])){
$post_type = $field['value'];
$post_type_label = acf_get_post_type_label($post_type);
$field['choices'][$field['value']] = $post_type_label . ' Archive';
}
// render
acf_render_field( $field );
}
function ajax_query(){
// validate
if(!acf_verify_ajax())
die();
// get choices
$response = $this->post_object->get_ajax_query($_POST);
$options = acf_parse_args($_POST, array(
'post_id' => 0,
's' => '',
'field_key' => '',
'paged' => 1
));
$field = acf_get_field($options['field_key']);
if(!$field)
return false;
if($options['paged'] > 1)
acf_send_ajax_results($response);
// init archives
$s = false;
$is_search = false;
if($options['s'] !== ''){
$s = wp_unslash(strval($options['s']));
$is_search = true;
}
if(!empty($field['post_type'])){
$post_types = acf_get_array($field['post_type']);
}else{
$post_types = acf_get_post_types();
}
$post_types_archives = array();
foreach($post_types as $post_type){
$post_type_obj = get_post_type_object($post_type);
$has_archive = false;
if($post_type === 'post' || $post_type_obj->has_archive){
$has_archive = true;
}
if(!$has_archive)
continue;
$post_type_label = acf_get_post_type_label($post_type);
if($is_search && stripos($post_type_label, $s) === false)
continue;
$post_types_archives[] = array(
'id' => $post_type,
'text' => $post_type_label . ' Archive'
);
}
if(!empty($post_types_archives)){
if(!isset($response['results'])){
$response['results'] = array();
}
array_unshift($response['results'], array(
'text' => 'Archives',
'children' => $post_types_archives
));
}
// return
acf_send_ajax_results($response);
}
function render_field_settings($field){
// Filter Post Type
acf_render_field_setting($field, array(
'label' => __('Filter by Post Type','acf'),
'instructions' => '',
'type' => 'select',
'name' => 'post_type',
'choices' => acf_get_pretty_post_types(),
'multiple' => 1,
'ui' => 1,
'allow_null' => 1,
'placeholder' => __("All post types",'acf'),
));
// Filter Taxonomy
acf_render_field_setting($field, array(
'label' => __('Filter by Taxonomy','acf'),
'instructions' => '',
'type' => 'select',
'name' => 'taxonomy',
'choices' => acf_get_taxonomy_terms(),
'multiple' => 1,
'ui' => 1,
'allow_null' => 1,
'placeholder' => __("All taxonomies",'acf'),
));
$field_name = 'field_name';
if(acf_maybe_get($field, 'name'))
$field_name = $field['name'];
ob_start();
?>
Add your own sub fields using the following hook:
add_filter('acfe/fields/advanced_link/sub_fields/name=', 'my_acf_advanced_link_sub_fields', 10, 3);
function my_acf_advanced_link_sub_fields($sub_fields, $field, $value){
/**
* @array $sub_fields Sub fields array
* @array $field Advanced Link field
* @array $value Advanced Link values
*/
$sub_fields[] = array(
'name' => 'my_field',
'label' => 'My field',
'type' => 'true_false',
'ui' => true
);
return $sub_fields;
}
__('Custom sub fields','acf'),
'instructions' => '',
'type' => 'message',
'name' => 'instructions',
'message' => $message,
'new_lines' => false
));
}
function get_value($value = array()){
// vars
$value = wp_parse_args($value, array(
'type' => 'url',
'post' => '',
'term' => '',
'title' => '',
'url' => false,
'url_title' => '',
'target' => false,
));
$value['url_title'] = $value['url'];
// Post
if($value['type'] === 'post' && !empty($value['post'])){
if(is_numeric($value['post'])){
$value['url'] = get_permalink($value['post']);
$value['url_title'] = get_the_title($value['post']);
}else{
$post_type = $value['post'];
$value['url'] = get_post_type_archive_link($post_type);
$value['url_title'] = acf_get_post_type_label($post_type) . ' Archive';
}
// Term
}elseif($value['type'] === 'term' && !empty($value['term'])){
$term = get_term(intval($value['term']));
if(!empty($term) && !is_wp_error($term)){
$value['url'] = get_term_link($term);
$value['url_title'] = $term->name;
}
}
// Target
if(!empty($value['target'])){
$value['target'] = '_blank';
}
// return
return $value;
}
function render_field($field){
// vars
$div = array(
'id' => $field['id'],
'class' => $field['class'] . ' acf-link',
);
// get link
$value = $this->get_value($field['value']);
// classes
if($value['url']){
$div['class'] .= ' -value';
}
if($value['target'] === '_blank'){
$div['class'] .= ' -external';
}
$sub_fields = array(
array(
'name' => 'type',
'key' => 'type',
'label' => __('Type', 'acf'),
'type' => 'radio',
'required' => false,
'class' => 'input-type',
'choices' => array(
'url' => __('URL', 'acf'),
'post' => __('Post', 'acf'),
'term' => __('Term', 'acf'),
),
),
array(
'name' => 'url',
'key' => 'url',
'label' => __('URL', 'acf'),
'type' => 'text',
'required' => false,
'class' => 'input-url',
'conditional_logic' => array(
array(
array(
'field' => 'type',
'operator' => '==',
'value' => 'url',
)
)
)
),
array(
'name' => 'post',
'key' => 'post',
'label' => __('Post', 'acf'),
'type' => 'post_object',
'required' => false,
'class' => 'input-post',
'allow_null' => 0,
'ajax_action' => 'acfe/fields/advanced_link/post_query',
'conditional_logic' => array(
array(
array(
'field' => 'type',
'operator' => '==',
'value' => 'post',
)
)
)
),
array(
'name' => 'term',
'key' => 'term',
'label' => __('Term', 'acf'),
'type' => 'acfe_taxonomy_terms',
'required' => false,
'class' => 'input-term',
'field_type' => 'select',
'return_format' => 'id',
'ui' => 1,
'allow_null' => 0,
'conditional_logic' => array(
array(
array(
'field' => 'type',
'operator' => '==',
'value' => 'term',
)
)
)
),
array(
'name' => 'title',
'key' => 'title',
'label' => __('Link text', 'acf'),
'type' => 'text',
'required' => false,
'class' => 'input-title',
),
array(
'name' => 'target',
'key' => 'target',
'label' => __('Target', 'acf'),
'type' => 'true_false',
'message' => __('Open in an new window', 'acf'),
'required' => false,
'class' => 'input-target',
),
);
// Deprecated
$sub_fields = apply_filters_deprecated('acfe/fields/advanced_link/fields', array($sub_fields, $field, $value), '0.8.1', 'acfe/fields/advanced_link/sub_fields');
$sub_fields = apply_filters_deprecated('acfe/fields/advanced_link/fields/name=' . $field['_name'], array($sub_fields, $field, $value), '0.8.1', 'acfe/fields/advanced_link/sub_fields/name=' . $field['_name']);
$sub_fields = apply_filters_deprecated('acfe/fields/advanced_link/fields/key=' . $field['key'], array($sub_fields, $field, $value), '0.8.1', 'acfe/fields/advanced_link/sub_fields/key=' . $field['key']);
// Sub Fields Fitlers
$sub_fields = apply_filters('acfe/fields/advanced_link/sub_fields', $sub_fields, $field, $value);
$sub_fields = apply_filters('acfe/fields/advanced_link/sub_fields/name=' . $field['_name'], $sub_fields, $field, $value);
$sub_fields = apply_filters('acfe/fields/advanced_link/sub_fields/key=' . $field['key'], $sub_fields, $field, $value);
foreach($sub_fields as &$sub_field){
$sub_field['prefix'] = $field['name'];
$sub_field['value'] = isset($value[$sub_field['name']]) ? $value[$sub_field['name']] : '';
$sub_field = acf_validate_field($sub_field);
$sub_field = acf_prepare_field($sub_field);
}
?>
get_value($value);
// clean
acfe_unset($value, 'type');
acfe_unset($value, 'post');
acfe_unset($value, 'term');
acfe_unset($value, 'url_title');
return $value;
}
function validate_value($valid, $value, $field, $input){
// bail early if not required
if(!$field['required'])
return $valid;
// URL is required
if(empty($value))
return false;
if((acf_maybe_get($value, 'type') === 'url' && !acf_maybe_get($value, 'url')) || (acf_maybe_get($value, 'type') === 'post' && !acf_maybe_get($value, 'post')) || (acf_maybe_get($value, 'type') === 'term' && !acf_maybe_get($value, 'term')))
return false;
// return
return $valid;
}
}
// initialize
acf_register_field_type('acfe_field_advanced_link');
endif;