add form fields to custom taxonomy

gistfile1.aw

<?php


function edit_category_form($tag){
	$taxonomy = $tag->taxonomy ;
	
	if( $taxonomy != 'category' ){
		$taxonomy = 'custom_taxonomy';
	}
	
	$args = array(	'custom_taxonomy' => array(
			  			array( 'slug'		=> 'produkt',
			  			       'title'		=> 'Beschreibungstext <br />innerhalb eines Tabs',
			  				'desc_nopost'	=> 'Es wurden noch keine Beschreibungen verfasst!</b><br /> <a href="' . get_bloginfo( 'Home' ) . '/wp-admin/post-new.php?post_type=descriptions" target="_blank">Hier kannst du eine neue Beschreibung verfassen.</a>',
			  				'desc'		=> 'Mit diesem Dropdown kann ein Beschreibungstext für diese Kategorie, festgelegt werden, der innerhalb eines <b>Tabs</b> angezeigt wird.</span>',
							'post_type'	=> 'tag'
			  			     )
						)
			);
	
	foreach($args[$taxonomy] as $arg_key => $arg){
		$output .= '<table class="form-table">';
		$output .= '<tbody><tr class="form-field form-required">';
		$output .= '<tr valign="top"><th scope="row">' . $arg['title'] . '</th>';
		$output .= '<td id="front-static-pages">
						<fieldset>
							<legend class="screen-reader-text"><span>Danke Text (bei Buchung):</span></legend>
							<p>
								<label>';					
		
		$the_query = new WP_Query('post_type=' . $arg['post_type'] . '&posts_per_page=200');
	
		if( $the_query->found_posts == 0){
			$output .= '<b>' . $arg['desc_nopost'];
		}else{
			$PostParm = 'category_' . $arg['post_type'] . '_' . $_GET['tag_ID'] . '_' . $arg['slug'];
			$output .= '<input type="hidden" name="post_type" value="' . $arg['post_type'] . '">';
			
			$output .= '<select name="' . $PostParm . '" style="width:45%">';
			$output .= '<option value="0"> -- Wähle eine Beschreibung -- </option>';
    	
			while ( $the_query->have_posts() ) : $the_query->the_post();
				if( get_the_ID() == get_option( $PostParm ) ){
					$selected = ' selected="selected" ';
				}else{
					$selected = FALSE;					
				}
    	
				$output .= '<option value="' . get_the_ID() . '"' . $selected . '>' . get_the_title() . '</option>';
			endwhile;
			$output .= '</select>';
			$output .= "<input type='hidden' name='args_as_json[]' value='" . $arg['slug'] . "' />";
		}
		
		
		$output .= '</label></p><span class="description">' . $arg['desc'] . '</td>';
		
		$output .= '</tr></tbody></table>';
	}

	
	echo $output;
}


function edit_category(){

	$trem_calc = $_POST['fieldname'] . '_identifyer';
	$oldEntries = get_option( $trem_calc );
		
	if( isset( $_POST['fieldname'] ) && $_POST['fieldname'] != $oldEntries )  {		
		if( !$oldEntries ){
			add_option( $_POST['id'], $_POST['fieldname'] );
		}else{
			update_option( $_POST['id'], $_POST['fieldname'] );
		}
	}

}

add_action( 'edit_term_taxonomy', 'edit_category', 1 ,2 );
add_action( 'edit_tag_form_fields', 'edit_category_form', 1 ,2 );

?>