Spowoduje to dodanie pola o nazwie „TERM META TEXT” do twoich kategorii. Wyciągnąłem ten nonce, ale naprawdę myślę, że powinien wrócić. Poza tym lepiej jest mieć pewne warunki sanitarne niż żadne. Ten przykład zawiera haczyki javascript i CSS, których możesz potrzebować lub nie, ale możesz szybko zobaczyć, jak wszystkie części idą w parze.
Cieszyć się!
// REGISTER TERM META
add_action( 'init', '___register_term_meta_text' );
function ___register_term_meta_text() {
register_meta( 'term', '__term_meta_text', '___sanitize_term_meta_text' );
}
// SANITIZE DATA
function ___sanitize_term_meta_text ( $value ) {
return sanitize_text_field ($value);
}
// GETTER (will be sanitized)
function ___get_term_meta_text( $term_id ) {
$value = get_term_meta( $term_id, '__term_meta_text', true );
$value = ___sanitize_term_meta_text( $value );
return $value;
}
// ADD FIELD TO CATEGORY TERM PAGE
add_action( 'category_add_form_fields', '___add_form_field_term_meta_text' );
function ___add_form_field_term_meta_text() { ?>
<?php wp_nonce_field( basename( __FILE__ ), 'term_meta_text_nonce' ); ?>
<div class="form-field term-meta-text-wrap">
<label for="term-meta-text"><?php _e( 'TERM META TEXT', 'text_domain' ); ?></label>
<input type="text" name="term_meta_text" id="term-meta-text" value="" class="term-meta-text-field" />
</div>
<?php }
// ADD FIELD TO CATEGORY EDIT PAGE
add_action( 'category_edit_form_fields', '___edit_form_field_term_meta_text' );
function ___edit_form_field_term_meta_text( $term ) {
$value = ___get_term_meta_text( $term->term_id );
if ( ! $value )
$value = ""; ?>
<tr class="form-field term-meta-text-wrap">
<th scope="row"><label for="term-meta-text"><?php _e( 'TERM META TEXT', 'text_domain' ); ?></label></th>
<td>
<?php wp_nonce_field( basename( __FILE__ ), 'term_meta_text_nonce' ); ?>
<input type="text" name="term_meta_text" id="term-meta-text" value="<?php echo esc_attr( $value ); ?>" class="term-meta-text-field" />
</td>
</tr>
<?php }
// SAVE TERM META (on term edit & create)
add_action( 'edit_category', '___save_term_meta_text' );
add_action( 'create_category', '___save_term_meta_text' );
function ___save_term_meta_text( $term_id ) {
// verify the nonce --- remove if you don't care
if ( ! isset( $_POST['term_meta_text_nonce'] ) || ! wp_verify_nonce( $_POST['term_meta_text_nonce'], basename( __FILE__ ) ) )
return;
$old_value = ___get_term_meta_text( $term_id );
$new_value = isset( $_POST['term_meta_text'] ) ? ___sanitize_term_meta_text ( $_POST['term_meta_text'] ) : '';
if ( $old_value && '' === $new_value )
delete_term_meta( $term_id, '__term_meta_text' );
else if ( $old_value !== $new_value )
update_term_meta( $term_id, '__term_meta_text', $new_value );
}
// MODIFY COLUMNS (add our meta to the list)
add_filter( 'manage_edit-category_columns', '___edit_term_columns' );
function ___edit_term_columns( $columns ) {
$columns['__term_meta_text'] = __( 'TERM META TEXT', 'text_domain' );
return $columns;
}
// RENDER COLUMNS (render the meta data on a column)
add_filter( 'manage_category_custom_column', '___manage_term_custom_column', 10, 3 );
function ___manage_term_custom_column( $out, $column, $term_id ) {
if ( '__term_meta_text' === $column ) {
$value = ___get_term_meta_text( $term_id );
if ( ! $value )
$value = '';
$out = sprintf( '<span class="term-meta-text-block" style="" >%s</div>', esc_attr( $value ) );
}
return $out;
}
// ADD JAVASCRIPT & STYLES TO COLUMNS
add_action( 'admin_enqueue_scripts', '___admin_enqueue_scripts' );
function ___admin_enqueue_scripts( $hook_suffix ) {
if ( 'edit-tags.php' !== $hook_suffix || 'category' !== get_current_screen()->taxonomy )
return;
// ADD YOUR SUPPORTING CSS / JS FILES HERE
// wp_enqueue_style( 'wp-color-picker' );
// wp_enqueue_script( 'wp-color-picker' );
add_action( 'admin_head', '___meta_term_text_print_styles' );
add_action( 'admin_footer', '___meta_term_text_print_scripts' );
}
// PRINT OUR CUSTOM STYLES
function ___meta_term_text_print_styles() { ?>
<style type="text/css">
.column-__term_meta_text { background-color:rgb(249, 249, 249); border: 1px solid lightgray;}
.column-__term_meta_text .term-meta-text-block { display: inline-block; color:darkturquoise; }
</style>
<?php }
// PRINT OUR CUSTOM SCRIPTS
function ___meta_term_text_print_scripts() { ?>
<script type="text/javascript">
jQuery( document ).ready( function( $ ) {
$input_field = $( '.term-meta-text-field' );
// console.log($input_field); // your input field
} );
</script>
<?php }