Add Portfolio Headlines to WordPress Categories

portfolio-headlines.php

<?php

/* Add Portfolio Headlines to WordPress Categories */
function addPortfolioHeadlineFieldsToCat(){
    $portfolio_headline = get_term_meta($_GET['tag_ID'], '_portfolio_headline', true);
	$portfolio_sub_headline = get_term_meta($_GET['tag_ID'], '_portfolio_sub_headline', true);
    ?> 
    <h2><?php _e('Portfolio Headline Settings'); ?></h2>
	<table class="form-table">
	<tbody>
	<tr class="form-field">
        <th scope="row" valign="top"><label for="portfolio_headline"><?php _e('Portfolio Headline'); ?></label></th>
        <td>
        <input type="text" name="portfolio_headline" id="portfolio_headline" value="<?php echo $portfolio_headline ?>"><br />
            <span class="description"><?php _e('Headline to appear over first image in category. '); ?></span>
        </td>
    </tr>
	<tr class="form-field">
        <th scope="row" valign="top"><label for="portfolio_sub_headline"><?php _e('Portfolio Sub-Headline'); ?></label></th>
        <td>
        <input type="text" name="portfolio_sub_headline" id="portfolio_sub_headline" value="<?php echo $portfolio_sub_headline ?>"><br />
            <span class="description"><?php _e('Sub-Headline to appear over first image in category. '); ?></span>
        </td>
    </tr>
	</tbody>
	</table>
    <?php

}
add_action ( 'edit_category_form_fields', 'addPortfolioHeadlineFieldsToCat');

function saveCategoryFields() {
    if ( isset( $_POST['portfolio_headline'] ) ) {
        update_term_meta($_POST['tag_ID'], '_portfolio_headline', $_POST['portfolio_headline']);
    }
	
	if ( isset( $_POST['portfolio_headline'] ) ) {
        update_term_meta($_POST['tag_ID'], '_portfolio_sub_headline', $_POST['portfolio_sub_headline']);
    }
}
add_action ( 'edited_category', 'saveCategoryFields');