35 lines
992 B
Ruby
35 lines
992 B
Ruby
# frozen_string_literal: true
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module TimeZoneHelper
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TIME_ZONE_FORMAT_ATTRS = {
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short: %i[identifier name offset],
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full: %i[identifier name abbr offset formatted_offset]
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}.freeze
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private_constant :TIME_ZONE_FORMAT_ATTRS
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# format:
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# * :full - all available fields
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# * :short (default)
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#
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# Example:
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# timezone_data # :short by default
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# timezone_data(format: :full)
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#
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def timezone_data(format: :short)
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attrs = TIME_ZONE_FORMAT_ATTRS.fetch(format) do
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valid_formats = TIME_ZONE_FORMAT_ATTRS.keys.map { |k| ":#{k}"}.join(", ")
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raise ArgumentError, "Invalid format :#{format}. Valid formats are #{valid_formats}."
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end
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ActiveSupport::TimeZone.all.map do |timezone|
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{
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identifier: timezone.tzinfo.identifier,
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name: timezone.name,
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abbr: timezone.tzinfo.strftime('%Z'),
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offset: timezone.now.utc_offset,
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formatted_offset: timezone.now.formatted_offset
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}.slice(*attrs)
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end
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end
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end
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