feat: add parent cids to body class

src/controllers/category.js

@@ -122,6 +122,7 @@ async function buildBreadcrumbs(req, categoryData) {
 		{
 			text: categoryData.name,
 			url: nconf.get('relative_path') + '/category/' + categoryData.slug,
+			cid: categoryData.cid,
 		},
 	];
 	const crumbs = await helpers.buildCategoryBreadcrumbs(categoryData.parentCid);

src/controllers/helpers.js

@@ -159,6 +159,7 @@ helpers.buildCategoryBreadcrumbs = async function (cid) {
 			breadcrumbs.unshift({
 				text: String(data.name),
 				url: nconf.get('relative_path') + '/category/' + data.slug,
+				cid: cid,
 			});
 		}
 		cid = data.parentCid;

src/controllers/topics.js

@@ -156,6 +156,7 @@ async function buildBreadcrumbs(topicData) {
 		{
 			text: topicData.category.name,
 			url: nconf.get('relative_path') + '/category/' + topicData.category.slug,
+			cid: topicData.category.cid,
 		},
 		{
 			text: topicData.title,

src/middleware/render.js

@@ -127,6 +127,13 @@ module.exports = function (middleware) {
 			parts.push('page-topic-category-' + templateData.category.cid);
 			parts.push('page-topic-category-' + utils.slugify(templateData.category.name));
 		}
+		if (templateData.breadcrumbs) {
+			templateData.breadcrumbs.forEach(function (crumb) {
+				if (crumb.hasOwnProperty('cid')) {
+					parts.push('parent-category-' + crumb.cid);
+				}
+			});
+		}
 
 		parts.push('page-status-' + res.statusCode);
 		return parts.join(' ');