Module: Hashie::Extensions::Dash::PropertyTranslation::ClassMethods
- Defined in:
- lib/hashie/extensions/dash/property_translation.rb
Instance Attribute Summary collapse
-
#transforms ⇒ Object
readonly
Returns the value of attribute transforms.
-
#translations_hash ⇒ Object
readonly
Returns the value of attribute translations_hash.
Instance Method Summary collapse
-
#inherited(klass) ⇒ Object
Ensures that any inheriting classes maintain their translations.
- #inverse_translations ⇒ Object
- #permitted_input_keys ⇒ Object
-
#property(property_name, options = {}) ⇒ Object
Defines a property on the Trash.
- #transformation_exists?(name) ⇒ Boolean
- #transformed_property(property_name, value) ⇒ Object
- #translation_exists?(name) ⇒ Boolean
- #translations ⇒ Object
Instance Attribute Details
#transforms ⇒ Object (readonly)
Returns the value of attribute transforms.
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 49 def transforms @transforms end |
#translations_hash ⇒ Object (readonly)
Returns the value of attribute translations_hash.
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 49 def translations_hash @translations_hash end |
Instance Method Details
#inherited(klass) ⇒ Object
Ensures that any inheriting classes maintain their translations.
- :default - The class inheriting the translations.
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 54 def inherited(klass) super klass.instance_variable_set(:@transforms, transforms.dup) klass.instance_variable_set(:@translations_hash, translations_hash.dup) end |
#inverse_translations ⇒ Object
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 119 def inverse_translations @inverse_translations ||= {}.tap do |h| translations_hash.each do |(property_name, property_translations)| property_translations.keys.each do |k| h[k] = property_name end end end end |
#permitted_input_keys ⇒ Object
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 60 def permitted_input_keys @permitted_input_keys ||= properties.map { |property| inverse_translations.fetch property, property } end |
#property(property_name, options = {}) ⇒ Object
Defines a property on the Trash. Options are as follows:
- :default - Specify a default value for this property, to be returned before a value is set on the property in a new Dash.
- :from - Specify the original key name that will be write only.
- :with - Specify a lambda to be used to convert value.
- :transform_with - Specify a lambda to be used to convert value without using the :from option. It transform the property itself.
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 72 def property(property_name, = {}) super if [:from] if property_name == [:from] fail ArgumentError, "Property name (#{property_name}) and :from option must not be the same" end translations_hash[[:from]] ||= {} translations_hash[[:from]][property_name] = [:with] || [:transform_with] define_method "#{[:from]}=" do |val| self.class.translations_hash[[:from]].each do |name, with| self[name] = with.respond_to?(:call) ? with.call(val) : val end end else if [:transform_with].respond_to? :call transforms[property_name] = [:transform_with] end end end |
#transformation_exists?(name) ⇒ Boolean
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 99 def transformation_exists?(name) transforms.key? name end |
#transformed_property(property_name, value) ⇒ Object
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 95 def transformed_property(property_name, value) transforms[property_name].call(value) end |
#translation_exists?(name) ⇒ Boolean
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 103 def translation_exists?(name) translations_hash.key? name end |
#translations ⇒ Object
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# File 'lib/hashie/extensions/dash/property_translation.rb', line 107 def translations @translations ||= {}.tap do |h| translations_hash.each do |(property_name, property_translations)| if property_translations.size > 1 h[property_name] = property_translations.keys else h[property_name] = property_translations.keys.first end end end end |