1 files changed, 24 insertions, 0 deletions
diff --git a/lib/handlebars/helpers/with.js b/lib/handlebars/helpers/with.js
new file mode 100644
index 0000000..7418cd0
--- /dev/null
+++ b/lib/handlebars/helpers/with.js
@@ -0,0 +1,24 @@
+import {appendContextPath, blockParams, createFrame, isEmpty, isFunction} from '../utils';
+
+export default function(instance) {
+  instance.registerHelper('with', function(context, options) {
+    if (isFunction(context)) { context = context.call(this); }
+
+    let fn = options.fn;
+
+    if (!isEmpty(context)) {
+      let data = options.data;
+      if (options.data && options.ids) {
+        data = createFrame(options.data);
+        data.contextPath = appendContextPath(options.data.contextPath, options.ids[0]);
+      }
+
+      return fn(context, {
+        data: data,
+        blockParams: blockParams([context], [data && data.contextPath])
+      });
+    } else {
+      return options.inverse(this);
+    }
+  });
+}