From e3819d8f4ef8abddda8dbbe972b5ddf92a785098 Mon Sep 17 00:00:00 2001
From: Rufus Pollock <rufus.pollock@okfn.org>
Date: Sat, 31 Mar 2012 11:09:10 +0100
Subject: [PATCH] [#51,bugfix][xs]: fix bug in pulling of fields from document
 in createDataset (corrects error in
 5fc486d8083a27db21993fc7d58c2c2dae75c17f).

---
 src/backend/memory.js | 4 ++--
 test/backend.test.js  | 4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/backend/memory.js b/src/backend/memory.js
index 7ca76932..be86c936 100644
--- a/src/backend/memory.js
+++ b/src/backend/memory.js
@@ -29,8 +29,8 @@ this.recline.Backend = this.recline.Backend || {};
       datasetInfo.fields = fields;
     } else {
       if (data) {
-        datasetInfo.fields = _.map(data[0], function(cell) {
-          return {id: cell};
+        datasetInfo.fields = _.map(data[0], function(value, key) {
+          return {id: key};
         });
       }
     }
diff --git a/test/backend.test.js b/test/backend.test.js
index 27e0bd53..332b8eb1 100644
--- a/test/backend.test.js
+++ b/test/backend.test.js
@@ -7,7 +7,7 @@ var memoryData = {
     , name: '1-my-test-dataset' 
     , id: 'test-dataset'
   },
-  fields: [{id: 'x'}, {id: 'y'}, {id: 'z'}],
+  fields: [{id: 'id'}, {id: 'x'}, {id: 'y'}, {id: 'z'}],
   documents: [
     {id: 0, x: 1, y: 2, z: 3}
     , {id: 1, x: 2, y: 4, z: 6}
@@ -32,6 +32,8 @@ test('Memory Backend: createDataset', function () {
 
 test('Memory Backend: createDataset 2', function () {
   var dataset = recline.Backend.createDataset(memoryData.documents);
+  equal(dataset.fields.length, 4);
+  deepEqual(['id', 'x', 'y', 'z'], dataset.fields.pluck('id'));
   dataset.query();
   equal(memoryData.documents.length, dataset.currentDocuments.length);
 });