WordPress CPT with Taxonomy Custom Fields II (Not quite working)

gistfile1.php

//---- CUSTOM POST TYPE - FAQs --------------------------------------------------------

add_action('init', '_init_question_post_type');

function _init_question_post_type() {

	// USED FOR CUSTOM TAXONOMY FIELDS
	global $wpdb;

	// MAKE POST TYPE
	//---------------------------
	register_post_type( 'question',
		array(
			'labels' => array(
				'name' => __( 'FAQs' ),
				'singular_name' => __( 'FAQ' ),
				'add_new' => __( 'Add New' ),
				'add_new_item' => __( 'Add New FAQ' ),
				'edit' => __( 'Edit' ),
				'edit_item' => __( 'Edit FAQ' ),
				'new_item' => __( 'New FAQ' ),
				'view' => __( 'View FAQ' ),
				'view_item' => __( 'View FAQ' ),
				'search_items' => __( 'Search FAQ' ),
				'not_found' => __( 'No FAQs found' ),
				'not_found_in_trash' => __( 'No FAQs found in Trash' ),
			),
			'public' => true,
			'show_ui' => true,
			'publicly_queryable' => true,
			'exclude_from_search' => false,
			'hierarchical' => false,
			'menu_position' => 20,
			'capability_type' => 'post',
			'menu_icon' => '/assets/images/faq_menu.png',
			'query_var' => true,
			'rewrite' => array( 'slug' => 'about/faqs', 'with_front' => false ),
			'supports' => array('title', 'editor'),
		)
	);
	
	// MAKE PERMALINKS WORK
	//---------------------------
    flush_rewrite_rules();
    
	// MAKE TAXONOMY
	//---------------------------
	register_taxonomy_for_object_type('question', 'question-category');
	register_taxonomy(
		'question-category',
		array( 'question' ),
		array(
			'labels' => array(
				'name' => __( 'FAQ Categories' ),
				'singular_name' => __( 'FAQ Category' ),
				'search_items' => __( 'Search FAQ Categories' ),
				'popular_items' => __( 'Popular FAQ Categories' ),
				'all_items' => __( 'All FAQ Categories' ),
				'parent_item' => __( 'Parent FAQ Category' ),
				'parent_item_colon' => __( 'Parent FAQ Category:' ),
				'edit_item' => __( 'Edit FAQ Category' ),
				'update_item' => __( 'Update FAQ Category' ),
				'add_new_item' => __( 'Add New FAQ Category' ),
				'new_item_name' => __( 'New FAQ Category' ),
			),
			'public' => true,
			'show_in_nav_menus' => true,
			'show_ui' => true,
			'publicly_queryable' => true,
			'exclude_from_search' => false,
			//'rewrite' => array( 'slug' => 'topics', 'with_front' => false ),
			'hierarchical' => true,
			'query_var' => true,
		)
	);
	
	// USE CUSTOM DB TABLE - NO HYPHENS!
	$wpdb->{question-categorymeta} = $wpdb->prefix."question_categorymeta";

	// DEFINE CUSTOM TAXONOMY FIELDS
	//---------------------------
	add_action( 'question-category_edit_form_fields', 'question_define_custom_fields', 10, 2);
	function question_define_custom_fields($tag, $taxonomy)
	{
	// Get column value
    $question_cat_column = get_metadata($tag->taxonomy, $tag->term_id, 'question_cat_column', true);
    // Check / set column value
    if (!$question_cat_column) $question_cat_column = "Left";
	// Get menu order value
    $question_cat_menu_order = get_metadata($tag->taxonomy, $tag->term_id, 'question_cat_menu_order', true);
    ?>
    <?php print_r($tag->taxonomy); ?>
    <?php print_r($tag->term_id); ?>
    <tr class="form-field">
        <th scope="row" valign="top"><label for="question_cat_column">Column</label></th>
        <td>
            <select style="width: 100px;" name="question_cat_column" id="question_cat_column">
                <option value="Left" selected="selected">Left</option>
                <option value="Right" <?php
                    if ($question_cat_column == "Right") echo ' selected="selected";'; ?>>Right</option>
            </select>
            <!--p class="description">Marking a Package to 'No' will hide all items in that package.</p-->
        </td>
    </tr>
    <tr class="form-field">
        <th scope="row" valign="top"><label for="question_cat_menu_order">Order</label></th>
        <td>
            <input style="width: 98px;" maxlength="2" type="text" name="question_cat_menu_order" id="question_cat_menu_order"
                value="<?php echo $question_cat_menu_order; ?>"/><br />
            <!--p class="description">This is the unit price for the items in this 'package'.</p-->
        </td>
    </tr>
    <?php
	}	
	
	// SAVE CUSTOM TAXONOMY FIELDS
	//---------------------------
	add_action( 'edited_question-category', 'save_custom_fields', 10, 2);
	function save_custom_fields($term_id, $tt_id)
	{
	    if (!$term_id) return;
	   
	    if (isset($_POST['question_cat_column']))
	        update_metadata($_POST['taxonomy'], $term_id, 'question_cat_column',
	            $_POST['question_cat_column']);
	
	    if (isset($_POST['question_cat_menu_order']))
	        update_metadata($_POST['taxonomy'], $term_id, 'question_cat_menu_order',
	            sprintf("%01.2f", $_POST['question_cat_menu_order']));
	
	}
	
	// DEFINE CUSTOM COLUMNS
	//---------------------------
	add_filter("manage_edit-question_columns", "question_define_columns");	
	function question_define_columns($question_columns) {
		$new_columns['cb'] = '<input type="checkbox" />';
		$new_columns['title'] = __('Question');
		$new_columns['question-category'] = __('Category');
		//$new_columns['question-answer'] = __('Answer');
		//$new_columns['author'] = __('Author');
		//$new_columns['comments'] = __('Comments');
		//$new_columns['tags'] = __('Tags');
		//$new_columns['date'] = __('Date');
		//$new_columns['hsm_pagetitle'] = __('Page title');
		//$new_columns['hsm_pagedescription'] = __('Page description');
		return $new_columns;
	}
	
	// POPULATE CUSTOM COLUMNS
	//---------------------------
	add_action('manage_question_posts_custom_column', 'question_fill_columns', 10, 2);
	function question_fill_columns($column_name, $id) {
		global $post;
		switch ($column_name) {
			case 'question-category':
				echo strip_tags(get_the_term_list( $id, 'question-category', '', ', ', '' ));
				break;
			default:
				break;
		}
	}
	
	// SORTABLE COLUMN HEADERS
	//---------------------------
	add_filter("manage_edit-question_sortable_columns", 'question_sortable_columns');
	function question_sortable_columns($columns) {
		$custom = array(
			'question-category' 	=> 'question-category',
		);
		return wp_parse_args($custom, $columns);
	}	
	
}