hide category icons if they are not set

src/categories.js

@@ -314,20 +314,30 @@ var db = require('./database'),
 				return callback(null, []);
 			}
 
-			async.map(categories, function(category, next) {
-				if (!category || !parseInt(category.cid, 10)) {
-					return next(null, null);
-				}
-				category.name = validator.escape(category.name);
-				category.description = validator.escape(category.description);
-				category.backgroundImage = category.image ? nconf.get('relative_path') + category.image : '';
-				category.disabled = parseInt(category.disabled, 10) === 1;
-
-				next(null, category);
-			}, callback);
+			async.map(categories, modifyCategory, callback);
 		});
 	};
 
+	function modifyCategory(category, callback) {
+		if (!category || !parseInt(category.cid, 10)) {
+			return callback(null, null);
+		}
+
+		category.name = validator.escape(category.name);
+		category.disabled = parseInt(category.disabled, 10) === 1;
+		category.icon = category.icon || 'hidden';
+
+		if (category.description) {
+			category.description = validator.escape(category.description);
+		}
+
+		if (category.image) {
+			category.backgroundImage = category.image ? nconf.get('relative_path') + category.image : '';
+		}
+
+		callback(null, category);
+	}
+
 	Categories.getCategoryField = function(cid, field, callback) {
 		db.getObjectField('category:' + cid, field, callback);
 	};
@@ -336,7 +346,12 @@ var db = require('./database'),
 		var keys = cids.map(function(cid) {
 			return 'category:' + cid;
 		});
-		db.getObjectsFields(keys, fields, callback);
+		db.getObjectsFields(keys, fields, function(err, categories) {
+			if (err) {
+				return callback(err);
+			}
+			async.map(categories, modifyCategory, callback);
+		});
 	};
 
 	Categories.getCategoryFields = function(cid, fields, callback) {

src/posts.js

@@ -270,13 +270,13 @@ var async = require('async'),
 							return next(err);
 						}
 
-						var cidKeys = topics.map(function(topic) {
-							return 'category:' + topic.cid;
+						var cids = topics.map(function(topic) {
+							return topic && topic.cid;
 						}).filter(function(value, index, array) {
-							return array.indexOf(value) === index;
+							return value && array.indexOf(value) === index;
 						});
 
-						db.getObjectsFields(cidKeys, ['cid', 'name', 'icon', 'slug'], function(err, categories) {
+						categories.getMultipleCategoryFields(cids, ['cid', 'name', 'icon', 'slug'], function(err, categories) {
 							next(err, {topics: topics, categories: categories});
 						});
 					});
@@ -320,9 +320,9 @@ var async = require('async'),
 				async.map(posts, function(post, next) {
 					post.user = results.users[post.uid];
 					post.topic = results.topics[post.tid];
+					post.topic.title = validator.escape(post.topic.title);
 					post.category = results.categories[post.topic.cid];
 
-					post.topic.title = validator.escape(post.topic.title);
 					post.relativeTime = utils.toISOString(post.timestamp);
 
 					if (!post.content || !options.parse) {

src/topics.js

@@ -226,7 +226,6 @@ var async = require('async'),
 				for (var i=0; i<topics.length; ++i) {
 					if (topics[i]) {
 						topics[i].category = categories[topics[i].cid] || {};
-						topics[i].category.disabled = parseInt(topics[i].category.disabled, 10) === 1;
 						topics[i].user = users[topics[i].uid];
 						topics[i].teaser = results.teasers[i];
 						topics[i].tags = results.tags[i];