Add the typeForAttribute option. Closes #11.

README.md

@@ -22,6 +22,8 @@ API](http://jsonapi.org) (1.0 compliant).
         - *dataLinks*: An object that describes the links inside data. Values can be *string* or a *function* (see examples below)
         - *relationshipLinks*: An object that describes the links inside relationships. Values can be *string* or a *function* (see examples below)
         - *keyForAttribute*: A function that maps the attribute (passed as an argument) to the key. Attributes are dasherized by default.
+        - *pluralizeType*: A boolean to indicate if the type must be pluralized or not. Default: true.
+        - *typeForAttribute*: A function that maps the attribute (passed as an argument) to the type you want to override. Option *pluralizeType* ignored if set.
 
 
 ## Examples

lib/serializer-utils.js

@@ -29,8 +29,15 @@ module.exports = function (collectionName, record, payload, opts) {
   }
 
   function getType(str) {
-    return !_.isUndefined(opts.pluralizeType) && !opts.pluralizeType ? str :
-      inflection.pluralize(str);
+    var type = str;
+
+    if (_.isFunction(opts.typeForAttribute)) {
+      type = opts.typeForAttribute(str);
+    } else if (_.isUndefined(opts.pluralizeType) || opts.pluralizeType) {
+      type = inflection.pluralize(type);
+    }
+
+    return type;
   }
 
   function getLinks(current, links) {

test/serializer.js

@@ -56,6 +56,26 @@ describe('Options', function () {
     });
   });
 
+  describe('typeForAttribute', function () {
+    it('should set the type according to the func return', function (done) {
+      var dataSet = {
+        id: '1',
+        firstName: 'Sandro',
+        lastName: 'Munda',
+      };
+
+      new JsonApiSerializer('user', dataSet, {
+        attributes: ['firstName', 'lastName'],
+        typeForAttribute: function (attribute) {
+          return attribute + '_foo';
+        }
+      }).then(function (json) {
+        expect(json.data.type).equal('user_foo');
+        done(null, json);
+      });
+    });
+  });
+
   describe('included', function () {
     it('should include or not the compount documents', function (done) {
       var dataSet = [{