1 files changed, 49 insertions, 4 deletions
diff --git a/lib/models/config.js b/lib/models/config.js
index fd4201d..e32ccdc 100644
--- a/lib/models/config.js
+++ b/lib/models/config.js
@@ -6,7 +6,7 @@ var File = require('./file');
 var Config = Immutable.Record({
     file:       File(),
     values:     Immutable.Map()
-});
+}, 'Config');
 
 Config.prototype.getPath = function() {
     return this.get('path');
@@ -24,13 +24,35 @@ Config.prototype.getValues = function() {
 */
 Config.prototype.getValue = function(keyPath, def) {
     var values = this.getValues();
-    if (is.string(keyPath)) keyPath = keyPath.split('.');
+    keyPath = Config.keyToKeyPath(keyPath);
+
+    if (!values.hasIn(keyPath)) {
+        return def;
+    }
+
+    return values.getIn(keyPath);
+};
+
+/**
+    Update a configuration value
+
+    @param {String} key
+    @param {Mixed} value
+    @return {Mixed}
+*/
+Config.prototype.setValue = function(keyPath, value) {
+    keyPath = Config.keyToKeyPath(keyPath);
+
+    value = Immutable.fromJS(value);
 
-    return values.getIn(keyPath) || def;
+    var values = this.getValues();
+    values = values.setIn(keyPath, value);
+
+    return this.set('values', values);
 };
 
 /**
-    Create a new config, throw error if invalid
+    Create a new config for a file
 
     @param {File} file
     @param {Object} values
@@ -43,5 +65,28 @@ Config.create = function(file, values) {
     });
 };
 
+/**
+    Create a new config
+
+    @param {Object} values
+    @returns {Config}
+*/
+Config.createWithValues = function(values) {
+    return new Config({
+        values: Immutable.fromJS(values)
+    });
+};
+
+
+/**
+    Convert a keyPath to an array of keys
+
+    @param {String|Array}
+    @return {Array}
+*/
+Config.keyToKeyPath = function(keyPath) {
+    if (is.string(keyPath)) keyPath = keyPath.split('.');
+    return keyPath;
+}
 
 module.exports = Config;