From 7090bb15c3030e05c9c311d8de69c01ca9abfa6e Mon Sep 17 00:00:00 2001
From: Salvador de la Puente <salva@unoyunodiez.com>
Date: Sun, 26 Apr 2015 20:46:25 +0200
Subject: [PATCH 1/2] Improving customization

---
 addon/mixins/form-data-adapter.js | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/addon/mixins/form-data-adapter.js b/addon/mixins/form-data-adapter.js
index e14028a..dcfb64e 100644
--- a/addon/mixins/form-data-adapter.js
+++ b/addon/mixins/form-data-adapter.js
@@ -13,13 +13,16 @@ export default Ember.Mixin.create({
 
     if (typeof FormData !== 'undefined' && data && this.formDataTypes.contains(type)) {
       var formData = new FormData();
-      var root = Ember.keys(data)[0];
-
-      Ember.keys(data[root]).forEach(function(key) {
-        if (typeof data[root][key] !== 'undefined') {
-          formData.append(root + "[" + key + "]", data[root][key]);
+      var fields = this.getDataToTransform(data);
+
+      Ember.keys(fields).forEach(function(key) {
+        if (typeof fields[key] !== 'undefined') {
+          formData.append(
+            this.getFormKey(key, fields),
+            this.getFormValue(key, fields)
+          );
         }
-      });
+      }.bind(this));
 
       hash.processData = false;
       hash.contentType = false;
@@ -28,4 +31,19 @@ export default Ember.Mixin.create({
 
     return hash;
   },
+
+  getDataToTransform: function (data) {
+    var root = Ember.keys(data)[0];
+    return data[root];
+  },
+
+  getFormKey: function (key, data) {
+    this._root = this._root || Ember.keys(data)[0];
+    return this._root + "[" + key + "]";
+  },
+
+  getFormValue: function (key, data) {
+    this._root = this._root || Ember.keys(data)[0];
+    return data[this._root][key];
+  }
 });

From a2e9c342ff8539fc6f746d072e9e1eb743dd2f04 Mon Sep 17 00:00:00 2001
From: Salvador de la Puente <salva@unoyunodiez.com>
Date: Fri, 1 May 2015 10:29:58 +0200
Subject: [PATCH 2/2] Adding documentation and improving API naming.

---
 README.md                         |  8 +++++++-
 addon/mixins/form-data-adapter.js | 20 +++++++++-----------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/README.md b/README.md
index f2d420c..1d38dc4 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,12 @@ model.save();
 
 This will send the ``attachment`` and all other attributes as a FormData object.
 
+## Customization
+
+You can override `getFormFields()` to select the fields you want to transform into FormData. The method is passed the model snapshot as unique parameter. If you want to customize the name for the key, overrides `getFormKey()` which is passed with the `key` and `value` for that key of the hash returned by `getFormFields()`. To customize the value, use `getFormValue()`.
+
+Do not abuse these customization. If you're performing huge changes in your model's representation, then you should be providing a custom serializer or maybe a different transformation for an specific field.
+
 ### Thanks
 
-This addon was inspired by Matt Beedle's blog post http://blog.mattbeedle.name/posts/file-uploads-in-ember-data/
\ No newline at end of file
+This addon was inspired by Matt Beedle's blog post http://blog.mattbeedle.name/posts/file-uploads-in-ember-data/
diff --git a/addon/mixins/form-data-adapter.js b/addon/mixins/form-data-adapter.js
index dcfb64e..8c4f3e9 100644
--- a/addon/mixins/form-data-adapter.js
+++ b/addon/mixins/form-data-adapter.js
@@ -13,13 +13,13 @@ export default Ember.Mixin.create({
 
     if (typeof FormData !== 'undefined' && data && this.formDataTypes.contains(type)) {
       var formData = new FormData();
-      var fields = this.getDataToTransform(data);
+      var fields = this.getFormFields(data);
 
       Ember.keys(fields).forEach(function(key) {
         if (typeof fields[key] !== 'undefined') {
           formData.append(
-            this.getFormKey(key, fields),
-            this.getFormValue(key, fields)
+            this.getFormKey(key, fields[key]),
+            this.getFormValue(key, fields[key])
           );
         }
       }.bind(this));
@@ -32,18 +32,16 @@ export default Ember.Mixin.create({
     return hash;
   },
 
-  getDataToTransform: function (data) {
-    var root = Ember.keys(data)[0];
-    return data[root];
+  getFormFields: function (data) {
+    this._root = this._root || Ember.keys(data)[0];
+    return data[this._root];
   },
 
-  getFormKey: function (key, data) {
-    this._root = this._root || Ember.keys(data)[0];
+  getFormKey: function (key, value) {
     return this._root + "[" + key + "]";
   },
 
-  getFormValue: function (key, data) {
-    this._root = this._root || Ember.keys(data)[0];
-    return data[this._root][key];
+  getFormValue: function (key, value) {
+    return value;
   }
 });