Module: Spree::Preferences::PreferableClassMethods

Defined in:
lib/spree/preferences/preferable_class_methods.rb

Constant Summary collapse

DEFAULT_ADMIN_FORM_PREFERENCE_TYPES = 
i(
  boolean
  decimal
  integer
  password
  string
  text
  encrypted_string
)

Instance Method Summary collapse

Instance Method Details

#allowed_admin_form_preference_types ⇒ Array

List of preference types allowed as form fields in the Solidus admin

Overwrite this method in your class that includes Spree::Preferable if you want to provide more fields. If you do so, you also need to provide a preference field partial that lives in:

app/views/spree/admin/shared/preference_fields/

Returns:

  • (Array) 


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# File 'lib/spree/preferences/preferable_class_methods.rb', line 105

def allowed_admin_form_preference_types
  DEFAULT_ADMIN_FORM_PREFERENCE_TYPES
end

#defined_preferences ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 17

def defined_preferences
  []
end

#preference(name, type, options = {}) ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 21

def preference(name, type, options = {})
  options.assert_valid_keys(:default, :encryption_key)

  if type == :encrypted_string
    preference_encryptor = preference_encryptor(options)
    options[:default] = preference_encryptor.encrypt(options[:default])
  end

  default = options[:default]
  default = proc { options[:default] } unless default.is_a?(Proc)

  # The defined preferences on a class are all those defined directly on
  # that class as well as those defined on ancestors.
  # We store these as a class instance variable on each class which has a
  # preference. super() collects preferences defined on ancestors.
  singleton_preferences = (@defined_singleton_preferences ||= [])
  singleton_preferences << name.to_sym

  define_singleton_method :defined_preferences do
    super() + singleton_preferences
  end

  # cache_key will be nil for new objects, then if we check if there
  # is a pending preference before going to default
  define_method preference_getter_method(name) do
    value = preferences.fetch(name) do
      default.call(*context_for_default)
    end
    value = preference_encryptor.decrypt(value) if preference_encryptor.present?
    value
  end

  define_method preference_setter_method(name) do |value|
    value = convert_preference_value(value, type, preference_encryptor)
    preferences[name] = value

    # If this is an activerecord object, we need to inform
    # ActiveRecord::Dirty that this value has changed, since this is an
    # in-place update to the preferences hash.
    preferences_will_change! if respond_to?(:preferences_will_change!)
  end

  define_method preference_default_getter_method(name) do
    default.call(*context_for_default)
  end

  define_method preference_type_getter_method(name) do
    type
  end
end

#preference_default_getter_method(name) ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 80

def preference_default_getter_method(name)
  "preferred_#{name}_default".to_sym
end

#preference_encryptor(options) ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 88

def preference_encryptor(options)
  key = options[:encryption_key] ||
        ENV['SOLIDUS_PREFERENCES_MASTER_KEY'] ||
        Rails.application.credentials.secret_key_base

  Spree::Encryptor.new(key)
end

#preference_getter_method(name) ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 72

def preference_getter_method(name)
  "preferred_#{name}".to_sym
end

#preference_setter_method(name) ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 76

def preference_setter_method(name)
   "preferred_#{name}=".to_sym
end

#preference_type_getter_method(name) ⇒ Object 



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# File 'lib/spree/preferences/preferable_class_methods.rb', line 84

def preference_type_getter_method(name)
  "preferred_#{name}_type".to_sym
end