Add groups.getByName()

src/groups.js

@@ -4,6 +4,7 @@ exports = module.exports = {
     create: create,
     remove: remove,
     get: get,
+    getByName: getByName,
     update: update,
     getWithMembers: getWithMembers,
     getAll: getAll,
@@ -85,6 +86,17 @@ function get(id, callback) {
     });
 }
 
+function getByName(name, callback) {
+    assert.strictEqual(typeof name, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    groupdb.getByName(name, function (error, result) {
+        if (error) return callback(error);
+
+        return callback(null, result);
+    });
+}
+
 function getWithMembers(id, callback) {
     assert.strictEqual(typeof id, 'string');
     assert.strictEqual(typeof callback, 'function');