Insert/remove part

3 files changed, 38 insertions, 2 deletions

diff --git a/lib/modifiers/summary/index.js b/lib/modifiers/summary/index.js
index 4498287..2b84f66 100644
--- a/lib/modifiers/summary/index.js
+++ b/lib/modifiers/summary/index.js
@@ -3,7 +3,9 @@ module.exports = {
     moveArticle:        require('./moveArticle'),
     removeArticle:      require('./removeArticle'),
     unshiftArticle:     require('./unshiftArticle'),
+    editArticleTitle:   require('./editArticleTitle'),
 
-    editPartTitle:      require('./editPartTitle'),
-    editArticleTitle:   require('./editArticleTitle')
+    insertPart:         require('./insertPart'),
+    removePart:         require('./removePart'),
+    editPartTitle:      require('./editPartTitle')
 };
diff --git a/lib/modifiers/summary/insertPart.js b/lib/modifiers/summary/insertPart.js
new file mode 100644
index 0000000..ff36e27
--- /dev/null
+++ b/lib/modifiers/summary/insertPart.js
@@ -0,0 +1,19 @@
+var SummaryPart = require('../../models/summaryPart');
+var indexLevels = require('./indexLevels');
+
+/**
+    Returns a new Summary with a part inserted at given index
+
+    @param {Summary} summary
+    @param {Number} index
+    @param {Part} part
+    @return {Summary}
+*/
+function insertPart(summary, index, part) {
+    part = SummaryPart(part);
+
+    var parts = summary.getParts().insert(index, part);
+    return indexLevels(summary.set('parts', parts));
+}
+
+module.exports = insertPart;
diff --git a/lib/modifiers/summary/removePart.js b/lib/modifiers/summary/removePart.js
new file mode 100644
index 0000000..2f8affc
--- /dev/null
+++ b/lib/modifiers/summary/removePart.js
@@ -0,0 +1,15 @@
+var indexLevels = require('./indexLevels');
+
+/**
+    Remove a part at given index
+
+    @param {Summary} summary
+    @param {Number|} index
+    @return {Summary}
+*/
+function removePart(summary, index) {
+    var parts = summary.getParts().remove(index);
+    return indexLevels(summary.set('parts', parts));
+}
+
+module.exports = removePart;