MlString: Class to handle multilingual strings

Lodel/utils/mlstring.py

@@ -1,7 +1,29 @@
 # -*- coding: utf-8 -*-
 
+import json
+
 class MlString(object):
     """ Handle string with translations """
 
-    def __init__(self, default_str, translations = dict()):
-        pass
+    def __init__(self, translations = dict()):
+        self.translations = translations
+
+    def get(self, lang):
+        if not lang in self.translations:
+            return ''
+
+        return self.translations[lang]
+
+    def set(self, lang, text):
+        self.translations[lang] = text
+
+    def __str__(self):
+        return json.dumps(self.translations)
+
+    @staticmethod
+    def load(json_string):
+        if isinstance(json_string, str) and json_string != '':
+            translations = json.loads(json_string)
+        else:
+            translations = dict()
+        return MlString(translations)