1 files changed, 19 insertions, 3 deletions
diff --git a/lib/models/summaryPart.js b/lib/models/summaryPart.js
index 4b41621..345cf83 100644
--- a/lib/models/summaryPart.js
+++ b/lib/models/summaryPart.js
@@ -7,10 +7,15 @@ var SummaryArticle = require('./summaryArticle');
 */
 
 var SummaryPart = Immutable.Record({
+    level:      String(),
     title:      String(),
     articles:   Immutable.List()
 });
 
+SummaryPart.prototype.getLevel = function() {
+    return this.get('level');
+};
+
 SummaryPart.prototype.getTitle = function() {
     return this.get('title');
 };
@@ -20,20 +25,31 @@ SummaryPart.prototype.getArticles = function() {
 };
 
 /**
+    Return an article by its level
+
+    @param {String} level
+    @return {Article}
+*/
+SummaryPart.prototype.getByLevel = function(level) {
+    return SummaryArticle.getByLevel(this, level);
+};
+
+/**
     Create a SummaryPart
 
     @param {Object} def
     @return {SummaryPart}
 */
-SummaryPart.create = function(def) {
-    var articles = (def.articles || []).map(function(article) {
+SummaryPart.create = function(def, level) {
+    var articles = (def.articles || []).map(function(article, i) {
         if (article instanceof SummaryArticle) {
             return article;
         }
-        return SummaryArticle.create(article);
+        return SummaryArticle.create(article, [level, i].join('.'));
     });
 
     return new SummaryPart({
+        level: String(level),
         title: def.title,
         articles: Immutable.List(articles)
     });