response.rb in zuora-ruby-0.4.0

- old
+ new

@@ -1,9 +1,10 @@
 require 'active_support/core_ext/hash/conversions'
 
 module Zuora
   class Response
+    ERROR_STRINGS = ['Missing required value', 'are required fields'].freeze
     attr_reader :raw
 
     # @param [Faraday::Response]
     # @return [Zuora::Response]
     def initialize(response)
@@ -16,12 +17,36 @@
       doc = Nokogiri::XML raw.body
       hash = Hash.from_xml doc.to_xml
       Hashie::Mash.new(symbolize_keys_deep(hash))
     end
 
+    # @param [Hash] hash
+    def handle_errors(hash)
+      errors = []
+
+      hash.each do |key, value|
+        if value.is_a?(Hash)
+          handle_errors(value)
+        elsif value.is_a?(Array)
+          value.each { |v| handle_errors(v) }
+        elsif error?(key, value)
+          errors << value
+        end
+      end
+
+      raise_errors(errors) if errors.present?
+    end
+
     private
 
+    # @param [String|Symbol] key
+    # @param [String] value
+    def error?(key, value)
+      ERROR_STRINGS.any? { |str| value.to_s.match(str) } ||
+        key.to_s.casecmp('message').zero?
+    end
+
     # Given a key, convert to symbol, removing XML namespace, if any.
     # @param [String] key - a key, either "abc" or "abc:def"
     # @return [Symbol]
     def symbolize_key(key)
       return key unless key.respond_to?(:split)
@@ -43,8 +68,15 @@
           value = symbolize_keys_deep(value)
         end
 
         [symbolize_key(key), value]
       end]
+    end
+
+    # @param [Array] errors
+    def raise_errors(errors)
+      error_string = errors.join(',')
+      error = Zuora::Errors::InvalidValue.new(error_string, to_h)
+      fail error
     end
   end
 end