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<?php if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Class NF_Fields_Terms
*/
class NF_Fields_Terms extends NF_Fields_ListCheckbox
{
protected $_name = 'terms';
protected $_type = 'terms';
protected $_nicename = 'Terms List';
protected $_section = '';
protected $_icon = 'tags';
protected $_templates = array( 'terms', 'listcheckbox' );
protected $_settings = array( 'taxonomy', 'add_new_terms' );
protected $_settings_exclude = array( 'required' );
protected $_excluded_taxonomies = array(
'post_format'
);
public function __construct()
{
parent::__construct();
$this->_nicename = esc_html__( 'Terms List', 'ninja-forms' );
// If we are on the ninja-forms page...
// OR we're looking at nf_sub post types...
// OR we're editing a single post...
if ( ( ! empty( $_GET[ 'page' ] ) && 'ninja-forms' == $_GET[ 'page' ] ) ||
( ! empty( $_GET[ 'post_type' ] ) && 'nf_sub' == $_GET[ 'post_type' ] ) ||
isset( $_GET[ 'post' ] ) ) {
// Initiate the termslist.
add_action( 'admin_init', array( $this, 'init_settings' ) );
}
add_filter( 'ninja_forms_display_field', array( $this, 'active_taxonomy_field_check' ) );
add_filter( 'ninja_forms_localize_field_' . $this->_type, array( $this, 'add_term_options' ) );
add_filter( 'ninja_forms_localize_field_' . $this->_type . '_preview', array( $this, 'add_term_options' ) );
add_filter( 'ninja_forms_merge_tag_value_' . $this->_type, array( $this, 'merge_tag_value' ), 10, 2 );
$this->_settings[ 'options' ][ 'group' ] = '';
}
public function process( $field, $data )
{
return $data;
}
public function init_settings()
{
$term_settings = array();
$taxonomies = get_taxonomies( array( 'public' => true ), 'objects' );
foreach( $taxonomies as $name => $taxonomy ){
$tax_term_settings = array();
if( in_array( $name, $this->_excluded_taxonomies ) ) continue;
$this->_settings[ 'taxonomy' ][ 'options' ][] = array(
'label' => $taxonomy->labels->name,
'value' => $name
);
$terms = get_terms( $name, array( 'hide_empty' => false ) );
foreach( $terms as $term ){
// Check the slug instead of term_id to ensure we ONLY remove 'uncategorized'.
if( 'uncategorized' == $term->slug ) continue;
$tax_term_settings[] = array(
'name' => 'taxonomy_term_' . $term->term_id,
'type' => 'toggle',
'label' => $term->name . ' (' . $term->count .')',
'width' => 'one-third',
'deps' => array(
'taxonomy' => $name
),
);
}
if( empty( $tax_term_settings ) ){
$tax_term_settings[] = array(
'name' => $name . '_no_terms',
'type' => 'html',
'width' => 'full',
'value' => sprintf( esc_html__( 'No available terms for this taxonomy. %sAdd a term%s', 'ninja-forms' ), '<a href="' . admin_url( "edit-tags.php?taxonomy=$name" ) . '">', '</a>' ),
'deps' => array(
'taxonomy' => $name
)
);
}
$term_settings = array_merge( $term_settings, $tax_term_settings );
}
$term_settings[] = array(
'name' => '_no_taxonomy',
'type' => 'html',
'width' => 'full',
'value' => esc_html__( 'No taxonomy selected.', 'ninja-forms' ),
'deps' => array(
'taxonomy' => ''
)
);
$this->_settings[ 'taxonomy_terms' ] = array(
'name' => 'taxonomy_terms',
'type' => 'fieldset',
'label' => esc_html__( 'Available Terms', 'ninja-forms' ),
'width' => 'full',
'group' => 'primary',
'settings' => $term_settings
);
}
public function active_taxonomy_field_check( $field )
{
if( $this->_type != $field->get_setting( 'type' ) ) return $field;
$taxonomy = $field->get_setting( 'taxonomy' );
if( ! taxonomy_exists( $taxonomy ) ) return FALSE;
return $field;
}
public function add_term_options( $field )
{
$settings = ( is_object( $field ) ) ? $field->get_settings() : $field[ 'settings' ];
$settings[ 'options' ] = array();
if( isset( $settings[ 'taxonomy' ] ) && $settings[ 'taxonomy' ] ){
$terms = get_terms( $settings[ 'taxonomy' ], array( 'hide_empty' => false ) );
if( ! is_wp_error( $terms ) ){
foreach( $terms as $term ) {
if( ! isset( $settings[ 'taxonomy_term_' . $term->term_id ] ) ) continue;
if( ! $settings[ 'taxonomy_term_' . $term->term_id ] ) continue;
$settings['options'][] = array(
'label' => $term->name,
'value' => $term->term_id,
'calc' => '',
'selected' => 0,
'order' => 0
);
}
}
}
if( is_object( $field ) ) {
$field->update_settings( $settings );
} else {
$field[ 'settings' ] = $settings;
}
return $field;
}
public function merge_tag_value( $value, $field )
{
$terms = explode( ',', $value );
if( ! is_array( $terms ) ) {
$term = get_term_by( 'id', $value, $field[ 'taxonomy' ] );
if( $term ) {
return $term->name;
} else {
return $value;
}
}
$term_names = array();
foreach( $terms as $term_id ){
$term = get_term_by( 'id', $term_id, $field[ 'taxonomy' ] );
$term_names[] = ( $term ) ? $term->name : $term_id; // If the term is `false`, fallback to the term_id.
}
return implode( ',', $term_names );
}
public function get_parent_type()
{
return 'listcheckbox';
}
}