1 files changed, 20 insertions, 0 deletions
diff --git a/js/dav/lib/template/filter.js b/js/dav/lib/template/filter.js
new file mode 100644
index 00000000..cf2d3b04
--- /dev/null
+++ b/js/dav/lib/template/filter.js
@@ -0,0 +1,20 @@
+export default function filter(item) {
+  if (!item.children || !item.children.length) {
+    return `<c:${item.type} ${formatAttrs(item.attrs)}/>`;
+  }
+
+  let children = item.children.map(filter);
+  return `<c:${item.type} ${formatAttrs(item.attrs)}>
+            ${children}
+          </c:${item.type}>`;
+}
+
+function formatAttrs(attrs) {
+  if (typeof attrs !== 'object') {
+    return '';
+  }
+
+  return Object.keys(attrs)
+    .map(attr => `${attr}="${attrs[attr]}"`)
+    .join(' ');
+}