Fix sort

Author: Lee Richmond

lib/jsonapi_compliable/base.rb

@@ -160,8 +160,8 @@ def jsonapi_includes(scope)
     end
 
     def jsonapi_sort(scope)
-      sort_param = params[:sort] || '-id'
-      dir = sort_param.starts_with?('-') ? :asc : :desc
+      sort_param = params[:sort] || 'id'
+      dir = sort_param.starts_with?('-') ? :desc : :asc
       att = sort_param.sub('-', '').to_sym
 
       scope = if custom_sort = _jsonapi_config._sort

spec/jsonapi_compliable_spec.rb

@@ -249,19 +249,19 @@ def index
     end
 
     context 'asc' do
-      let(:sort_param) { '-first_name' }
+      let(:sort_param) { 'first_name' }
 
       it { is_expected.to eq(%w(Philip Stephen)) }
     end
 
     context 'desc' do
-      let(:sort_param) { 'first_name' }
+      let(:sort_param) { '-first_name' }
 
       it { is_expected.to eq(%w(Stephen Philip)) }
     end
 
     context 'when given a custom sort function' do
-      let(:sort_param) { '-first_name' }
+      let(:sort_param) { 'first_name' }
 
       before do
         controller.class_eval do