notifications.prune

run every hour
dont get more than 500 notifications

src/database/level/main.js

@@ -41,6 +41,10 @@ module.exports = function(db, module) {
 		db.del(key, callback);
 	};
 
+	module.deleteAll = function(keys, callback) {
+		async.each(keys, module.delete, callback);
+	};
+
 	module.get = function(key, callback) {
 		db.get(key, function(err, value) {
 			callback(false, value);

src/database/mongo/main.js

@@ -74,6 +74,11 @@ module.exports = function(db, module) {
 		db.collection('objects').remove({_key:key}, callback);
 	};
 
+	module.deleteAll = function(keys, callback) {
+		callback = callback || helpers.noop;
+		db.collection('objects').remove({_key: {$in: keys}}, callback);
+	};
+
 	module.get = function(key, callback) {
 		module.getObjectField(key, 'value', callback);
 	};

src/database/redis/main.js

@@ -73,6 +73,14 @@ module.exports = function(redisClient, module) {
 		redisClient.del(key, callback);
 	};
 
+	module.deleteAll = function(keys, callback) {
+		var multi = redisClient.multi();
+		for(var i=0; i<keys.length; ++i) {
+			multi.del(keys[i]);
+		}
+		multi.exec(callback);
+	};
+
 	module.get = function(key, callback) {
 		redisClient.get(key, callback);
 	};