Merge pull request #172 from john-griffin/master

Ensure validation errors use correct formatter

Author: lgebhardt

lib/jsonapi/exceptions.rb

@@ -284,6 +284,11 @@ class ValidationErrors < Error
       attr_accessor :messages
       def initialize(messages)
         @messages = messages
+        @key_formatter = JSONAPI.configuration.key_formatter
+      end
+
+      def format_key(key)
+        @key_formatter.format(key)
       end
 
       def errors
@@ -292,7 +297,7 @@ def errors
             element[1].map do |message|
               JSONAPI::Error.new(code: JSONAPI::VALIDATION_ERROR,
                                  status: :unprocessable_entity,
-                                 title: "#{element[0]} - #{message}",
+                                 title: "#{format_key(element[0])} - #{message}",
                                  detail: message,
                                  path: "/#{element[0]}")
             end

test/controllers/controller_test.rb

@@ -1684,7 +1684,7 @@ def test_create_validations_missing_attribute
     assert_equal 2, json_response['errors'].size
     assert_equal JSONAPI::VALIDATION_ERROR, json_response['errors'][0]['code']
     assert_equal JSONAPI::VALIDATION_ERROR, json_response['errors'][1]['code']
-    assert_match /date_joined - can't be blank/, response.body
+    assert_match /dateJoined - can't be blank/, response.body
     assert_match /name - can't be blank/, response.body
   end