Use attribute instead of attr_accessor

README.md

@@ -254,6 +254,9 @@ Available callbacks are (listed in execution order):
 
 ```ruby
 class RegistrationForm < YAAF::Form
+  attribute :email, :string
+  attribute :name, :string
+
   normalizes :email, with: ->(email) { email.strip.downcase }
   normalizes :name, with: ->(name) { name.strip.titleize }
 

lib/yaaf/form.rb

@@ -6,9 +6,9 @@ class Form
     include ::ActiveModel::Model
     include ::ActiveModel::Validations::Callbacks
     include ::ActiveRecord::Transactions
+    include ::ActiveModel::Attributes
 
     if defined?(::ActiveModel::Attributes::Normalization)
-      include ::ActiveModel::Attributes
       include ::ActiveModel::Attributes::Normalization
     end
 

spec/support/forms/multiple_errors_form.rb

@@ -1,5 +1,6 @@
 class MultipleErrorsForm < YAAF::Form
-  attr_accessor :email, :name
+  attribute :email, :string
+  attribute :name, :string
 
   validates :name, format: { with: /[a-zA-Z]+/ }
   validates :email, format: { with: /\S+@\S+\.\S+/ }

spec/support/forms/registration_form.rb

@@ -1,5 +1,6 @@
 class RegistrationForm < YAAF::Form
-  attr_accessor :email, :name
+  attribute :email, :string
+  attribute :name, :string
 
   validates :name, format: { with: /[a-zA-Z]+/ }, allow_blank: true
 

spec/support/forms/user_destroy_form.rb

@@ -1,5 +1,6 @@
 class UserDestroyForm < YAAF::Form
-  attr_accessor :email, :name
+  attribute :email, :string
+  attribute :name, :string
 
   before_save :mark_user_for_destruction
 

spec/support/forms/with_commit_callbacks_form.rb

@@ -1,5 +1,8 @@
 class WithCommitCallbacksForm < YAAF::Form
-  attr_accessor :email, :name, :after_counter
+  attribute :email, :string
+  attribute :name, :string
+
+  attr_accessor :after_counter
 
   validates :name, format: { with: /[a-zA-Z]+/ }, allow_blank: true
   after_commit { @after_counter += 1 }

spec/support/forms/with_multiple_callbacks_form.rb

@@ -1,5 +1,8 @@
 class WithMultipleCallbacksForm < YAAF::Form
-  attr_accessor :email, :name, :result
+  attribute :email, :string
+  attribute :name, :string
+
+  attr_accessor :result
 
   validates :name, format: { with: /[a-zA-Z]+/ }, allow_blank: true
   after_validation :add_to_after_validation_counter, :add_again_to_after_validation_counter

spec/support/forms/with_rollback_callbacks_form.rb

@@ -1,5 +1,8 @@
 class WithRollbackCallbacksForm < YAAF::Form
-  attr_accessor :email, :name, :after_counter
+  attribute :email, :string
+  attribute :name, :string
+
+  attr_accessor :after_counter
 
   validates :name, format: { with: /[a-zA-Z]+/ }, allow_blank: true
   after_rollback { @after_counter += 1 }

spec/support/forms/with_save_callbacks_form.rb

@@ -1,5 +1,8 @@
 class WithSaveCallbacksForm < YAAF::Form
-  attr_accessor :email, :name, :before_counter, :after_counter
+  attribute :email, :string
+  attribute :name, :string
+
+  attr_accessor :before_counter, :after_counter
 
   validates :name, format: { with: /[a-zA-Z]+/ }, allow_blank: true
   before_save :add_to_before_counter

spec/support/forms/with_validation_callbacks_form.rb

@@ -1,5 +1,8 @@
 class WithValidationCallbacksForm < YAAF::Form
-  attr_accessor :email, :name, :before_counter, :after_counter
+  attribute :email, :string
+  attribute :name, :string
+
+  attr_accessor :before_counter, :after_counter
 
   validates :name, format: { with: /[a-zA-Z]+/ }, allow_blank: true
   before_validation :add_to_before_counter