module DuckRecord::Enum
Constants
- ENUM_CONFLICT_MESSAGE
Public Instance Methods
enum(definitions)
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# File lib/duck_record/enum.rb, line 58 def enum(definitions) klass = self enum_prefix = definitions.delete(:_prefix) enum_suffix = definitions.delete(:_suffix) definitions.each do |name, values| # statuses = { } enum_values = ActiveSupport::HashWithIndifferentAccess.new name = name.to_sym # def self.statuses() statuses end detect_enum_conflict!(name, name.to_s.pluralize, true) klass.singleton_class.send(:define_method, name.to_s.pluralize) { enum_values } detect_enum_conflict!(name, name) detect_enum_conflict!(name, "#{name}=") attr = attribute_alias?(name) ? attribute_alias(name) : name decorate_attribute_type(attr, :enum) do |subtype| EnumType.new(attr, enum_values, subtype) end _enum_methods_module.module_eval do pairs = values.respond_to?(:each_pair) ? values.each_pair : values.each_with_index pairs.each do |value, i| if enum_prefix == true prefix = "#{name}_" elsif enum_prefix prefix = "#{enum_prefix}_" end if enum_suffix == true suffix = "_#{name}" elsif enum_suffix suffix = "_#{enum_suffix}" end value_method_name = "#{prefix}#{value}#{suffix}" enum_values[value] = i # def active?() status == 0 end klass.send(:detect_enum_conflict!, name, "#{value_method_name}?") define_method("#{value_method_name}?") { self[attr] == value.to_s } end end defined_enums[name.to_s] = enum_values end end
Private Instance Methods
_enum_methods_module()
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# File lib/duck_record/enum.rb, line 106 def _enum_methods_module @_enum_methods_module ||= begin mod = Module.new include mod mod end end
detect_enum_conflict!(enum_name, method_name, klass_method = false)
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# File lib/duck_record/enum.rb, line 119 def detect_enum_conflict!(enum_name, method_name, klass_method = false) if klass_method && dangerous_class_method?(method_name) raise_conflict_error(enum_name, method_name, type: "class") elsif !klass_method && dangerous_attribute_method?(method_name) raise_conflict_error(enum_name, method_name) elsif !klass_method && method_defined_within?(method_name, _enum_methods_module, Module) raise_conflict_error(enum_name, method_name, source: "another enum") end end
raise_conflict_error(enum_name, method_name, type: "instance", source: "Active Record")
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# File lib/duck_record/enum.rb, line 129 def raise_conflict_error(enum_name, method_name, type: "instance", source: "Active Record") raise ArgumentError, ENUM_CONFLICT_MESSAGE % { enum: enum_name, klass: name, type: type, method: method_name, source: source } end