本代码演示,如何给分类目录添加新字段,并且调用
新建分类页面,添加新字段
<?php // Add term page function tutorialshares_taxonomy_add_new_meta_field() { // this will add the custom meta field to the add new term page ?> <div class="form-field"> <label for="term_meta[custom_term_meta]"><?php _e( 'Example meta field', 'tutorialshares' ); ?></label> <input type="text" name="term_meta[custom_term_meta]" id="term_meta[custom_term_meta]" value=""> <p class="description"><?php _e( 'Enter a value for this field','tutorialshares' ); ?></p> </div> <?php } add_action( 'category_add_form_fields', 'tutorialshares_taxonomy_add_new_meta_field', 10, 2 );
您可以调整第一个参数{taxonomy_name}_add_form_fields以设置将字段添加到的分类法。在我的示例中,我将使用“类别”分类法。
编辑分类页面添加字段
<?php // Edit term page function tutorialshares_taxonomy_edit_meta_field($term) { // put the term ID into a variable $t_id = $term->term_id; // retrieve the existing value(s) for this meta field. This returns an array $term_meta = get_option( "taxonomy_$t_id" ); ?> <tr class="form-field"> <th scope="row" valign="top"><label for="term_meta[custom_term_meta]"><?php _e( 'Example meta field', 'tutorialshares' ); ?></label></th> <td> <input type="text" name="term_meta[custom_term_meta]" id="term_meta[custom_term_meta]" value="<?php echo esc_attr( $term_meta['custom_term_meta'] ) ? esc_attr( $term_meta['custom_term_meta'] ) : ''; ?>"> <p class="description"><?php _e( 'Enter a value for this field','tutorialshares' ); ?></p> </td> </tr> <?php } add_action( 'category_edit_form_fields', 'tutorialshares_taxonomy_edit_meta_field', 10, 2 );
保存数据
// Save extra taxonomy fields callback function. function save_taxonomy_custom_meta( $term_id ) { if ( isset( $_POST['term_meta'] ) ) { $t_id = $term_id; $term_meta = get_option( "taxonomy_$t_id" ); $cat_keys = array_keys( $_POST['term_meta'] ); foreach ( $cat_keys as $key ) { if ( isset ( $_POST['term_meta'][$key] ) ) { $term_meta[$key] = $_POST['term_meta'][$key]; } } // Save the option array. update_option( "taxonomy_$t_id", $term_meta ); } } add_action( 'edited_category', 'save_taxonomy_custom_meta', 10, 2 ); add_action( 'create_category', 'save_taxonomy_custom_meta', 10, 2 );
调用数据
$metafieldArray = get_option('taxonomy_'. $term->term_id); $metafieldoutput = $metafieldArray['custom_term_meta']; echo $metafieldoutput;