Move detailed errors into backports

lib/active_interaction/backports.rb

@@ -17,5 +17,53 @@ def []=(name, value)
  class Errors
  # Required for Rails < 3.2.13.
  protected :initialize_dup
+
+ # Required for Rails < 5.
+ #
+ # Extracted from active_model-errors_details 1.2.0. Modified to add support
+ # for ActiveModel 3.2.0.
+ module Details
+ extend ActiveSupport::Concern
+
+ CALLBACKS_OPTIONS = ::ActiveModel::Errors::CALLBACKS_OPTIONS
+ private_constant :CALLBACKS_OPTIONS
+
+ included do
+ attr_reader :details
+
+ %w[initialize initialize_dup add clear delete].each do |method|
+ alias_method "#{method}_without_details", method
+ alias_method method, "#{method}_with_details"
+ end
+ end
+
+ def initialize_with_details(base)
+ @details = Hash.new { |details, attribute| details[attribute] = [] }
+ initialize_without_details(base)
+ end
+
+ def initialize_dup_with_details(other)
+ @details = other.details.deep_dup
+ initialize_dup_without_details(other)
+ end
+
+ def add_with_details(attribute, message = :invalid, options = {})
+ message = message.call if message.respond_to?(:call)
+ error = options.except(*CALLBACKS_OPTIONS).merge(error: message)
+ details[attribute].push(error)
+ add_without_details(attribute, message, options)
+ end
+
+ def clear_with_details
+ details.clear
+ clear_without_details
+ end
+
+ def delete_with_details(attribute)
+ details.delete(attribute)
+ delete_without_details(attribute)
+ end
+ end
+ include Details unless method_defined?(:details)
  end
 end

lib/active_interaction/errors.rb

@@ -91,53 +91,6 @@ def initialize(outcome)
 
  # An extension that provides the ability to merge other errors into itself.
  class Errors < ActiveModel::Errors
- # Extracted from active_model-errors_details version 1.2.0. Modified to add
- # support for ActiveModel version 3.2.0.
- module Details
- extend ActiveSupport::Concern
-
- CALLBACKS_OPTIONS = ::ActiveModel::Errors::CALLBACKS_OPTIONS
- private_constant :CALLBACKS_OPTIONS
-
- included do
- attr_reader :details
-
- %w[initialize initialize_dup add clear delete].each do |method|
- alias_method "#{method}_without_details", method
- alias_method method, "#{method}_with_details"
- end
- end
-
- def initialize_with_details(base)
- @details = Hash.new { |details, attribute| details[attribute] = [] }
- initialize_without_details(base)
- end
-
- def initialize_dup_with_details(other)
- @details = other.details.deep_dup
- initialize_dup_without_details(other)
- end
-
- def add_with_details(attribute, message = :invalid, options = {})
- message = message.call if message.respond_to?(:call)
- error = options.except(*CALLBACKS_OPTIONS).merge(error: message)
- details[attribute].push(error)
- add_without_details(attribute, message, options)
- end
-
- def clear_with_details
- details.clear
- clear_without_details
- end
-
- def delete_with_details(attribute)
- details.delete(attribute)
- delete_without_details(attribute)
- end
- end
-
- include Details
-
  # Merge other errors into this one.
  #
  # @param other [Errors]