From d002777da3082213f142a200e372239d21b65a69 Mon Sep 17 00:00:00 2001
From: Sergio <sergio@codefit.io>
Date: Fri, 19 May 2017 21:37:01 +1000
Subject: [PATCH] Adding an extra argument to virtual functions so that they
 can have access to the full object

---
 lib/schema.js |  2 +-
 test/model.js | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/lib/schema.js b/lib/schema.js
index 252f8d71..3365202f 100644
--- a/lib/schema.js
+++ b/lib/schema.js
@@ -53,7 +53,7 @@ function generateVirtual(doc, defaultField, originalDoc, virtual) {
       }
     }
     else if ((typeof value === "function") && !Array.isArray(value._query)) {
-      field[path[path.length-1]] = value.call(doc);
+      field[path[path.length-1]] = value.call(doc, originalDoc);
     }
     else {
       if (util.isPlainObject(value)) {
diff --git a/test/model.js b/test/model.js
index bd9ad493..a56da771 100644
--- a/test/model.js
+++ b/test/model.js
@@ -705,6 +705,25 @@ describe('virtual', function(){
     })
     assert.equal(doc.numVirtual, 3);
   });
+  it('Generate fields -- virtuals with access to parent', function() {
+    var Model = thinky.createModel(modelNames[0], {
+      id: String,
+      num: Number,
+      numbers: {
+        numVirtual: {
+          _type: 'virtual',
+          default: function(parentDoc) {
+            return parentDoc.num+2
+          }
+        }
+      }
+
+    });
+    var doc = new Model({
+      num: 1, numbers:{}
+    })
+    assert.equal(doc.numbers.numVirtual, 3);
+  });
   it('Generate fields -- manually', function() {
     var Model = thinky.createModel(modelNames[0], {
       id: String,