Fix parsing of multilingual books

lib/models/book.js

@@ -248,7 +248,7 @@ Book.createFromParent = function createFromParent(parent, language) {
         logger: parent.getLogger(),
         ignore: Ignore().add(ignore),
         language: language,
-        fs: FS.reduceScope(parent.getFS(), language)
+        fs: FS.reduceScope(parent.getContentFS(), language)
     });
 };
 

lib/models/fs.js

@@ -33,7 +33,8 @@ FS.prototype.getRoot = function() {
 */
 FS.prototype.isInScope = function(filename) {
     var rootPath = this.getRoot();
-    filename = path.resolve(rootPath, filename);
+    filename = path.join(rootPath, filename);
+
     return PathUtil.isInRoot(rootPath, filename);
 };
 

lib/models/languages.js

@@ -1,6 +1,7 @@
 var Immutable = require('immutable');
 
 var File = require('./file');
+var Language = require('./language');
 
 var Languages = Immutable.Record({
     file:       File(),
@@ -34,4 +35,29 @@ Languages.prototype.getLanguage = function(lang) {
     return this.getList().get(lang);
 };
 
+
+/**
+    Create a languages list from a JS object
+
+    @param {File}
+    @param {Array}
+    @return {Language}
+*/
+Languages.createFromList = function(file, langs) {
+    var list = Immutable.OrderedMap();
+
+    langs.forEach(function(lang) {
+        lang = Language({
+            title: lang.title,
+            path: lang.path
+        });
+        list = list.set(lang.getID(), lang);
+    });
+
+    return Languages({
+        file: file,
+        list: list
+    });
+}
+
 module.exports = Languages;