Fix initializing resource including relationships (#263)

* fix initializing resource including relationships

* add test for resource instantiation with associations

Author: BrunoChauvet

lib/json_api_client/resource.rb

@@ -305,15 +305,17 @@ def initialize(params = {})
       @persisted = nil
       self.links = self.class.linker.new(params.delete("links") || {})
       self.relationships = self.class.relationship_linker.new(self.class, params.delete("relationships") || {})
-      self.class.associations.each do |association|
-        if params.has_key?(association.attr_name.to_s)
-          set_attribute(association.attr_name, association.parse(params[association.attr_name.to_s]))
-        end
-      end
       self.attributes = params.merge(self.class.default_attributes)
+
       self.class.schema.each_property do |property|
         attributes[property.name] = property.default unless attributes.has_key?(property.name) || property.default.nil?
       end
+
+      self.class.associations.each do |association|
+        if params.has_key?(association.attr_name.to_s)
+          set_attribute(association.attr_name, params[association.attr_name.to_s])
+        end
+      end
     end
 
     # Set the current attributes and try to save them

test/unit/resource_test.rb

@@ -82,4 +82,11 @@ def test_formatted_key_accessors
       assert_equal("baz", article[:"foo-bar"])
     end
   end
+
+  def test_associations_as_params
+    article = Article.new(foo: 'bar', 'author' => {'type' => 'authors', 'id' => 1})
+    assert_equal(article.foo, 'bar')
+    assert_equal(article.attributes['author']['type'], 'authors')
+    assert_equal(article.attributes['author']['id'], 1)
+  end
 end