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创建没有插件的”中继器字段”

IT知识问答WordPress网站开发字段WordPress开发插件中继器

【创建没有插件的” 中继器字段” 】我想创建一个中继器元框而不使用任何类型的插件。
如何在” 选定模板” 中获取此metabox？
#1

add_action('admin_init', 'gpm_add_meta_boxes', 2); function gpm_add_meta_boxes() { add_meta_box( 'gpminvoice-group', 'Custom Repeatable', 'Repeatable_meta_box_display', 'page', 'normal', 'default'); }function Repeatable_meta_box_display() { global $post; $gpminvoice_group = get_post_meta($post-> ID, 'customdata_group', true); wp_nonce_field( 'gpm_repeatable_meta_box_nonce', 'gpm_repeatable_meta_box_nonce' ); ?> < script type="text/javascript"> jQuery(document).ready(function( $ ){ $( '#add-row' ).on('click', function() { var row = $( '.empty-row.screen-reader-text' ).clone(true); row.removeClass( 'empty-row screen-reader-text' ); row.insertBefore( '#repeatable-fieldset-one tbody> tr:last' ); return false; }); $( '.remove-row' ).on('click', function() { $(this).parents('tr').remove(); return false; }); }); < /script> < table id="repeatable-fieldset-one" width="100%"> < tbody> < ?php if ( $gpminvoice_group ) : foreach ( $gpminvoice_group as $field ) { ?> < tr> < td width="15%"> < input type="text"placeholder="Title" name="TitleItem[]" value="http://www.srcmini.com/< ?php if($field['TitleItem'] != '') echo esc_attr( $field['TitleItem'] ); ?> " /> < /td> < td width="70%"> < textarea placeholder="Description" cols="55" rows="5" name="TitleDescription[]"> < ?php if ($field['TitleDescription'] != '') echo esc_attr( $field['TitleDescription'] ); ?> < /textarea> < /td> < td width="15%"> < a class="button remove-row" href="http://www.srcmini.com/#1"> Remove< /a> < /td> < /tr> < ?php } else : // show a blank one ?> < tr> < td> < input type="text" placeholder="Title" title="Title" name="TitleItem[]" /> < /td> < td> < textareaplaceholder="Description" name="TitleDescription[]" cols="55" rows="5"> < /textarea> < /td> < td> < a class="buttoncmb-remove-row-button button-disabled" href="http://www.srcmini.com/#"> Remove< /a> < /td> < /tr> < ?php endif; ?> < !-- empty hidden one for jQuery --> < tr class="empty-row screen-reader-text"> < td> < input type="text" placeholder="Title" name="TitleItem[]"/> < /td> < td> < textarea placeholder="Description" cols="55" rows="5" name="TitleDescription[]"> < /textarea> < /td> < td> < a class="button remove-row" href="http://www.srcmini.com/#"> Remove< /a> < /td> < /tr> < /tbody> < /table> < p> < a id="add-row" class="button" href="http://www.srcmini.com/#"> Add another< /a> < /p> < ?php } add_action('save_post', 'custom_repeatable_meta_box_save'); function custom_repeatable_meta_box_save($post_id) { if ( ! isset( $_POST['gpm_repeatable_meta_box_nonce'] ) || ! wp_verify_nonce( $_POST['gpm_repeatable_meta_box_nonce'], 'gpm_repeatable_meta_box_nonce' ) ) return; if (defined('DOING_AUTOSAVE') & & DOING_AUTOSAVE) return; if (!current_user_can('edit_post', $post_id)) return; $old = get_post_meta($post_id, 'customdata_group', true); $new = array(); $invoiceItems = $_POST['TitleItem']; $prices = $_POST['TitleDescription']; $count = count( $invoiceItems ); for ( $i = 0; $i < $count; $i++ ) { if ( $invoiceItems[$i] != '' ) : $new[$i]['TitleItem'] = stripslashes( strip_tags( $invoiceItems[$i] ) ); $new[$i]['TitleDescription'] = stripslashes( $prices[$i] ); // and however you want to sanitize endif; } if ( !empty( $new ) & & $new != $old ) update_post_meta( $post_id, 'customdata_group', $new ); elseif ( empty($new) & & $old ) delete_post_meta( $post_id, 'customdata_group', $old ); }

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