/**
* If the option is set, add a map link to category lists.
*
* list_cats {@link http://codex.wordpress.org/Plugin_API/Filter_Reference#Category_Filters filter}
* called by WordPress.
*
* @since 1.0
*/
public static function list_cats($content, $category = null)
{
global $geo_mashup_options;
if ($category and 'category' == $category->taxonomy) {
$count = GeoMashupDB::category_located_post_count($category->cat_ID);
// Add map link only if there are geo-located posts to see
if ($count) {
// This feature doesn't work unless there is a category description
if (empty($category->description)) {
return $content . $geo_mashup_options->get('overall', 'category_link_separator') . __('You must add a description to this category to use this Geo Mashup feature.', 'GeoMashup');
}
$url = get_page_link($geo_mashup_options->get('overall', 'mashup_page'));
if (strstr($url, '?')) {
$url .= '&';
} else {
$url .= '?';
}
$link = '<a href="' . $url . 'map_cat=' . $category->cat_ID . '&zoom=' . $geo_mashup_options->get('overall', 'category_zoom') . '" title="' . $geo_mashup_options->get('overall', 'category_link_text') . '">';
return $content . '</a>' . $geo_mashup_options->get('overall', 'category_link_separator') . $link . $geo_mashup_options->get('overall', 'category_link_text');
}
}
return $content;
}
