Merge pull request #1291 from GitbookIO/summary-modifiers

Summary modifiers

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/modifiers/summary/insertPart.js b/lib/modifiers/summary/insertPart.js
new file mode 100644
index 0000000..199cba7
--- /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 {Part} part
+    @param {Number} index
+    @return {Summary}
+*/
+function insertPart(summary, part, index) {
+    part = SummaryPart(part);
+
+    var parts = summary.getParts().insert(index, part);
+    return indexLevels(summary.set('parts', parts));
+}
+
+module.exports = insertPart;