Class: ThemeSettingsParser

Inherits:
Object
  • Object
show all
Defined in:
lib/theme_settings_parser.rb

Defined Under Namespace

Classes: InvalidYaml

Instance Method Summary collapse

Constructor Details

#initialize(setting_field) ⇒ ThemeSettingsParser

Returns a new instance of ThemeSettingsParser.



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# File 'lib/theme_settings_parser.rb', line 7

def initialize(setting_field)
  @setting_field = setting_field
  @types = ThemeSetting.types
end

Instance Method Details

#create_opts(default, type, raw_opts = {}) ⇒ Object 



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# File 'lib/theme_settings_parser.rb', line 24

def create_opts(default, type, raw_opts = {})
  opts = {}
  opts[:description] = extract_description(raw_opts[:description])

  if type == @types[:enum]
    choices = raw_opts[:choices]
    choices = [] unless choices.is_a?(Array)
    choices << default unless choices.include?(default)
    opts[:choices] = choices
  end

  if [@types[:integer], @types[:string], @types[:float]].include?(type)
    opts[:max] = raw_opts[:max].is_a?(Numeric) ? raw_opts[:max] : Float::INFINITY
    opts[:min] = raw_opts[:min].is_a?(Numeric) ? raw_opts[:min] : -Float::INFINITY
  end

  opts[:list_type] = raw_opts[:list_type] if raw_opts[:list_type]

  opts[:textarea] = !!raw_opts[:textarea]
  opts[:json_schema] = raw_opts[:json_schema]

  opts[:refresh] = !!raw_opts[:refresh]

  opts
end

#extract_description(desc) ⇒ Object 



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# File 'lib/theme_settings_parser.rb', line 12

def extract_description(desc)
  return desc if desc.is_a?(String)

  if desc.is_a?(Hash)
    default_locale = SiteSetting.default_locale.to_sym
    fallback_locale = desc.keys.find { |key| I18n.locale_available?(key) }
    locale = desc[I18n.locale] || desc[default_locale] || desc[:en] || desc[fallback_locale]

    locale if locale.is_a?(String)
  end
end

#load ⇒ Object

Raises:



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# File 'lib/theme_settings_parser.rb', line 50

def load
  return if @setting_field.value.blank?

  begin
    parsed = YAML.safe_load(@setting_field.value)
  rescue Psych::SyntaxError, Psych::DisallowedClass => e
    raise InvalidYaml.new(e.message)
  end
  raise InvalidYaml.new(I18n.t("themes.settings_errors.invalid_yaml")) unless parsed.is_a?(Hash)

  parsed.deep_symbolize_keys!

  parsed.each_pair do |setting, value|
    if (type = ThemeSetting.guess_type(value)).present?
      result = [setting, value, type, create_opts(value, type)]
    elsif (hash = value).is_a?(Hash)
      default = hash[:default]
      type = hash.key?(:type) ? @types[hash[:type]&.to_sym] : ThemeSetting.guess_type(default)

      result = [setting, default, type, create_opts(default, type, hash)]
    else
      result = [setting, value, nil, {}]
    end

    yield(*result)
  end
end