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require 'rails_admin/support/i18n'
module RailsAdmin
module Support
class Datetime
# Ruby format options as a key and momentjs format options as a value
MOMENTJS_TRANSLATIONS = {
'%a' => 'ddd', # The abbreviated weekday name ("Sun")
'%A' => 'dddd', # The full weekday name ("Sunday")
'%b' => 'MMM', # The abbreviated month name ("Jan")
'%B' => 'MMMM', # The full month name ("January")
'%d' => 'DD', # Day of the month (01..31)
'%D' => 'MM/DD/YY', # American date format mm/dd/yy
'%e' => 'D', # Day of the month (1..31)
'%F' => 'YY-MM-DD', # ISO 8601 date format
'%H' => 'HH', # Hour of the day, 24-hour clock (00..23)
'%I' => 'hh', # Hour of the day, 12-hour clock (01..12)
'%m' => 'MM', # Month of the year (01..12)
'%-m' => 'M', # Month of the year (1..12)
'%M' => 'mm', # Minute of the hour (00..59)
'%p' => 'A', # Meridian indicator ('AM' or 'PM')
'%S' => 'ss', # Second of the minute (00..60)
'%Y' => 'YYYY', # Year with century
'%y' => 'YY', # Year without a century (00..99)
}
class << self
include RailsAdmin::Support::I18n
def delocalize(date_string, format)
return date_string if ::I18n.locale.to_s == 'en'
format.to_s.scan(/%[AaBbp]/) do |match|
case match
when '%A'
english = ::I18n.t('date.day_names', locale: :en)
day_names.each_with_index { |d, i| date_string = date_string.gsub(/#{d}/, english[i]) }
when '%a'
english = ::I18n.t('date.abbr_day_names', locale: :en)
abbr_day_names.each_with_index { |d, i| date_string = date_string.gsub(/#{d}/, english[i]) }
when '%B'
english = ::I18n.t('date.month_names', locale: :en)[1..-1]
month_names.each_with_index { |m, i| date_string = date_string.gsub(/#{m}/, english[i]) }
when '%b'
english = ::I18n.t('date.abbr_month_names', locale: :en)[1..-1]
abbr_month_names.each_with_index { |m, i| date_string = date_string.gsub(/#{m}/, english[i]) }
when '%p'
date_string = date_string.gsub(/#{::I18n.t('date.time.am', default: "am")}/, 'am')
date_string = date_string.gsub(/#{::I18n.t('date.time.pm', default: "pm")}/, 'pm')
end
end
date_string
end
def normalize(date_string, format)
return unless date_string
delocalize(date_string, format)
parse_date_string(date_string)
end
# Parse normalized date strings using time zone
def parse_date_string(date_string)
::Time.zone.parse(date_string)
end
end
attr_reader :strftime_format
def initialize(strftime_format)
@strftime_format = strftime_format
end
# Ruby to javascript formatting options translator
def to_momentjs
strftime_format.gsub(/\w[^.(!?%)\W]{1,}/, '[\0]').gsub(/%(\w|\-\w)/) do |match|
MOMENTJS_TRANSLATIONS[match]
end
end
# Delocalize a l10n datetime strings
def delocalize(value)
self.class.delocalize(value, strftime_format)
end
def parse_string(value)
return if value.blank?
return value if %w(DateTime Date Time).include?(value.class.name)
return if (delocalized_value = delocalize(value)).blank?
begin
# Adjust with the correct timezone and daylight savint time
datetime_with_wrong_tz = ::DateTime.strptime(delocalized_value, strftime_format)
Time.zone.parse(datetime_with_wrong_tz.strftime('%Y-%m-%d %H:%M:%S'))
rescue ArgumentError
nil
end
end
end
end
end
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