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# Copyright (c) 2005-2006 David Barri
require 'date'
module ActionView #:nodoc:
module Helpers #:nodoc:
module DateHelper
unless const_defined?(:LOCALIZED_HELPERS)
LOCALIZED_HELPERS= true
LOCALIZED_MONTHNAMES = {}
LOCALIZED_ABBR_MONTHNAMES = {}
end
# This method uses <tt>current_language</tt> to return a localized string.
def distance_of_time_in_words(from_time, to_time = 0, include_seconds = false)
from_time = from_time.to_time if from_time.respond_to?(:to_time)
to_time = to_time.to_time if to_time.respond_to?(:to_time)
distance_in_minutes = (((to_time - from_time).abs)/60).round
distance_in_seconds = ((to_time - from_time).abs).round
case distance_in_minutes
when 0..1
return (distance_in_minutes==0) ? l(:actionview_datehelper_time_in_words_minute_less_than) : l(:actionview_datehelper_time_in_words_minute_single) unless include_seconds
case distance_in_seconds
when 0..5 then lwr(:actionview_datehelper_time_in_words_second_less_than, 5)
when 6..10 then lwr(:actionview_datehelper_time_in_words_second_less_than, 10)
when 11..20 then lwr(:actionview_datehelper_time_in_words_second_less_than, 20)
when 21..40 then l(:actionview_datehelper_time_in_words_minute_half)
when 41..59 then l(:actionview_datehelper_time_in_words_minute_less_than)
else l(:actionview_datehelper_time_in_words_minute)
end
when 2..45 then lwr(:actionview_datehelper_time_in_words_minute, distance_in_minutes)
when 46..90 then l(:actionview_datehelper_time_in_words_hour_about_single)
when 90..1440 then lwr(:actionview_datehelper_time_in_words_hour_about, (distance_in_minutes.to_f / 60.0).round)
when 1441..2880 then lwr(:actionview_datehelper_time_in_words_day, 1)
else lwr(:actionview_datehelper_time_in_words_day, (distance_in_minutes / 1440).round)
end
end
# This method has been modified so that a localized string can be appended to the day numbers.
def select_day(date, options = {})
day_options = []
prefix = l :actionview_datehelper_select_day_prefix
1.upto(31) do |day|
day_options << ((date && (date.kind_of?(Fixnum) ? date : date.day) == day) ?
%(<option value="#{day}" selected="selected">#{day}#{prefix}</option>\n) :
%(<option value="#{day}">#{day}#{prefix}</option>\n)
)
end
select_html(options[:field_name] || 'day', day_options, options[:prefix], options[:include_blank], options[:discard_type], options[:disabled])
end
# This method has been modified so that
# * the month names are localized.
# * it uses options: <tt>:min_date</tt>, <tt>:max_date</tt>, <tt>:start_month</tt>, <tt>:end_month</tt>
# * a localized string can be appended to the month numbers when the <tt>:use_month_numbers</tt> option is specified.
def select_month(date, options = {})
unless LOCALIZED_MONTHNAMES.has_key?(current_language)
LOCALIZED_MONTHNAMES[current_language] = [''] + l(:actionview_datehelper_select_month_names).split(',')
LOCALIZED_ABBR_MONTHNAMES[current_language] = [''] + l(:actionview_datehelper_select_month_names_abbr).split(',')
end
month_options = []
month_names = options[:use_short_month] ? LOCALIZED_ABBR_MONTHNAMES[current_language] : LOCALIZED_MONTHNAMES[current_language]
if options.has_key?(:min_date) && options.has_key?(:max_date)
if options[:min_date].year == options[:max_date].year
start_month, end_month = options[:min_date].month, options[:max_date].month
end
end
start_month = (options[:start_month] || 1) unless start_month
end_month = (options[:end_month] || 12) unless end_month
prefix = l :actionview_datehelper_select_month_prefix
start_month.upto(end_month) do |month_number|
month_name = if options[:use_month_numbers]
"#{month_number}#{prefix}"
elsif options[:add_month_numbers]
month_number.to_s + ' - ' + month_names[month_number]
else
month_names[month_number]
end
month_options << ((date && (date.kind_of?(Fixnum) ? date : date.month) == month_number) ?
%(<option value="#{month_number}" selected="selected">#{month_name}</option>\n) :
%(<option value="#{month_number}">#{month_name}</option>\n)
)
end
select_html(options[:field_name] || 'month', month_options, options[:prefix], options[:include_blank], options[:discard_type], options[:disabled])
end
# This method has been modified so that
# * it uses options: <tt>:min_date</tt>, <tt>:max_date</tt>
# * a localized string can be appended to the years numbers.
def select_year(date, options = {})
year_options = []
y = date ? (date.kind_of?(Fixnum) ? (y = (date == 0) ? Date.today.year : date) : date.year) : Date.today.year
start_year = options.has_key?(:min_date) ? options[:min_date].year : (options[:start_year] || y-5)
end_year = options.has_key?(:max_date) ? options[:max_date].year : (options[:end_year] || y+5)
step_val = start_year < end_year ? 1 : -1
prefix = l :actionview_datehelper_select_year_prefix
start_year.step(end_year, step_val) do |year|
year_options << ((date && (date.kind_of?(Fixnum) ? date : date.year) == year) ?
%(<option value="#{year}" selected="selected">#{year}#{prefix}</option>\n) :
%(<option value="#{year}">#{year}#{prefix}</option>\n)
)
end
select_html(options[:field_name] || 'year', year_options, options[:prefix], options[:include_blank], options[:discard_type], options[:disabled])
end
end
# The private method <tt>add_options</tt> is overridden so that "Please select" is localized.
class InstanceTag
private
def add_options(option_tags, options, value = nil)
option_tags = "<option value=\"\"></option>\n" + option_tags if options[:include_blank]
if value.blank? && options[:prompt]
("<option value=\"\">#{options[:prompt].kind_of?(String) ? options[:prompt] : l(:actionview_instancetag_blank_option)}</option>\n") + option_tags
else
option_tags
end
end
end
end
end
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