require 'date' require 'action_view/helpers/tag_helper' require 'active_support/core_ext/array/extract_options' require 'active_support/core_ext/date/conversions' require 'active_support/core_ext/hash/slice' require 'active_support/core_ext/object/with_options' module ActionView module Helpers # = Action View Date Helpers # # The Date Helper primarily creates select/option tags for different kinds of dates and times or date and time # elements. All of the select-type methods share a number of common options that are as follows: # # * :prefix - overwrites the default prefix of "date" used for the select names. So specifying "birthday" # would give \birthday[month] instead of \date[month] if passed to the select_month method. # * :include_blank - set to true if it should be possible to set an empty date. # * :discard_type - set to true if you want to discard the type part of the select name. If set to true, # the select_month method would use simply "date" (which can be overwritten using :prefix) instead # of \date[month]. module DateHelper MINUTES_IN_YEAR = 525600 MINUTES_IN_QUARTER_YEAR = 131400 MINUTES_IN_THREE_QUARTERS_YEAR = 394200 # Reports the approximate distance in time between two Time, Date or DateTime objects or integers as seconds. # Pass include_seconds: true if you want more detailed approximations when distance < 1 min, 29 secs. # Distances are reported based on the following table: # # 0 <-> 29 secs # => less than a minute # 30 secs <-> 1 min, 29 secs # => 1 minute # 1 min, 30 secs <-> 44 mins, 29 secs # => [2..44] minutes # 44 mins, 30 secs <-> 89 mins, 29 secs # => about 1 hour # 89 mins, 30 secs <-> 23 hrs, 59 mins, 29 secs # => about [2..24] hours # 23 hrs, 59 mins, 30 secs <-> 41 hrs, 59 mins, 29 secs # => 1 day # 41 hrs, 59 mins, 30 secs <-> 29 days, 23 hrs, 59 mins, 29 secs # => [2..29] days # 29 days, 23 hrs, 59 mins, 30 secs <-> 44 days, 23 hrs, 59 mins, 29 secs # => about 1 month # 44 days, 23 hrs, 59 mins, 30 secs <-> 59 days, 23 hrs, 59 mins, 29 secs # => about 2 months # 59 days, 23 hrs, 59 mins, 30 secs <-> 1 yr minus 1 sec # => [2..12] months # 1 yr <-> 1 yr, 3 months # => about 1 year # 1 yr, 3 months <-> 1 yr, 9 months # => over 1 year # 1 yr, 9 months <-> 2 yr minus 1 sec # => almost 2 years # 2 yrs <-> max time or date # => (same rules as 1 yr) # # With include_seconds: true and the difference < 1 minute 29 seconds: # 0-4 secs # => less than 5 seconds # 5-9 secs # => less than 10 seconds # 10-19 secs # => less than 20 seconds # 20-39 secs # => half a minute # 40-59 secs # => less than a minute # 60-89 secs # => 1 minute # # from_time = Time.now # distance_of_time_in_words(from_time, from_time + 50.minutes) # => about 1 hour # distance_of_time_in_words(from_time, 50.minutes.from_now) # => about 1 hour # distance_of_time_in_words(from_time, from_time + 15.seconds) # => less than a minute # distance_of_time_in_words(from_time, from_time + 15.seconds, include_seconds: true) # => less than 20 seconds # distance_of_time_in_words(from_time, 3.years.from_now) # => about 3 years # distance_of_time_in_words(from_time, from_time + 60.hours) # => 3 days # distance_of_time_in_words(from_time, from_time + 45.seconds, include_seconds: true) # => less than a minute # distance_of_time_in_words(from_time, from_time - 45.seconds, include_seconds: true) # => less than a minute # distance_of_time_in_words(from_time, 76.seconds.from_now) # => 1 minute # distance_of_time_in_words(from_time, from_time + 1.year + 3.days) # => about 1 year # distance_of_time_in_words(from_time, from_time + 3.years + 6.months) # => over 3 years # distance_of_time_in_words(from_time, from_time + 4.years + 9.days + 30.minutes + 5.seconds) # => about 4 years # # to_time = Time.now + 6.years + 19.days # distance_of_time_in_words(from_time, to_time, include_seconds: true) # => about 6 years # distance_of_time_in_words(to_time, from_time, include_seconds: true) # => about 6 years # distance_of_time_in_words(Time.now, Time.now) # => less than a minute def distance_of_time_in_words(from_time, to_time = 0, options = {}) options = { scope: :'datetime.distance_in_words' }.merge!(options) 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) from_time, to_time = to_time, from_time if from_time > to_time distance_in_minutes = ((to_time - from_time)/60.0).round distance_in_seconds = (to_time - from_time).round I18n.with_options :locale => options[:locale], :scope => options[:scope] do |locale| case distance_in_minutes when 0..1 return distance_in_minutes == 0 ? locale.t(:less_than_x_minutes, :count => 1) : locale.t(:x_minutes, :count => distance_in_minutes) unless options[:include_seconds] case distance_in_seconds when 0..4 then locale.t :less_than_x_seconds, :count => 5 when 5..9 then locale.t :less_than_x_seconds, :count => 10 when 10..19 then locale.t :less_than_x_seconds, :count => 20 when 20..39 then locale.t :half_a_minute when 40..59 then locale.t :less_than_x_minutes, :count => 1 else locale.t :x_minutes, :count => 1 end when 2...45 then locale.t :x_minutes, :count => distance_in_minutes when 45...90 then locale.t :about_x_hours, :count => 1 # 90 mins up to 24 hours when 90...1440 then locale.t :about_x_hours, :count => (distance_in_minutes.to_f / 60.0).round # 24 hours up to 42 hours when 1440...2520 then locale.t :x_days, :count => 1 # 42 hours up to 30 days when 2520...43200 then locale.t :x_days, :count => (distance_in_minutes.to_f / 1440.0).round # 30 days up to 60 days when 43200...86400 then locale.t :about_x_months, :count => (distance_in_minutes.to_f / 43200.0).round # 60 days up to 365 days when 86400...525600 then locale.t :x_months, :count => (distance_in_minutes.to_f / 43200.0).round else if from_time.acts_like?(:time) && to_time.acts_like?(:time) fyear = from_time.year fyear += 1 if from_time.month >= 3 tyear = to_time.year tyear -= 1 if to_time.month < 3 leap_years = (fyear > tyear) ? 0 : (fyear..tyear).count{|x| Date.leap?(x)} minute_offset_for_leap_year = leap_years * 1440 # Discount the leap year days when calculating year distance. # e.g. if there are 20 leap year days between 2 dates having the same day # and month then the based on 365 days calculation # the distance in years will come out to over 80 years when in written # English it would read better as about 80 years. minutes_with_offset = distance_in_minutes - minute_offset_for_leap_year else minutes_with_offset = distance_in_minutes end remainder = (minutes_with_offset % MINUTES_IN_YEAR) distance_in_years = (minutes_with_offset.div MINUTES_IN_YEAR) if remainder < MINUTES_IN_QUARTER_YEAR locale.t(:about_x_years, :count => distance_in_years) elsif remainder < MINUTES_IN_THREE_QUARTERS_YEAR locale.t(:over_x_years, :count => distance_in_years) else locale.t(:almost_x_years, :count => distance_in_years + 1) end end end end # Like distance_of_time_in_words, but where to_time is fixed to Time.now. # # time_ago_in_words(3.minutes.from_now) # => 3 minutes # time_ago_in_words(3.minutes.ago) # => 3 minutes # time_ago_in_words(Time.now - 15.hours) # => about 15 hours # time_ago_in_words(Time.now) # => less than a minute # time_ago_in_words(Time.now, include_seconds: true) # => less than 5 seconds # # from_time = Time.now - 3.days - 14.minutes - 25.seconds # time_ago_in_words(from_time) # => 3 days # # from_time = (3.days + 14.minutes + 25.seconds).ago # time_ago_in_words(from_time) # => 3 days # # Note that you cannot pass a Numeric value to time_ago_in_words. # def time_ago_in_words(from_time, options = {}) distance_of_time_in_words(from_time, Time.now, options) end alias_method :distance_of_time_in_words_to_now, :time_ago_in_words # Returns a set of select tags (one for year, month, and day) pre-selected for accessing a specified date-based # attribute (identified by +method+) on an object assigned to the template (identified by +object+). # # ==== Options # * :use_month_numbers - Set to true if you want to use month numbers rather than month names (e.g. # "2" instead of "February"). # * :use_two_digit_numbers - Set to true if you want to display two digit month and day numbers (e.g. # "02" instead of "February" and "08" instead of "8"). # * :use_short_month - Set to true if you want to use abbreviated month names instead of full # month names (e.g. "Feb" instead of "February"). # * :add_month_numbers - Set to true if you want to use both month numbers and month names (e.g. # "2 - February" instead of "February"). # * :use_month_names - Set to an array with 12 month names if you want to customize month names. # Note: You can also use Rails' i18n functionality for this. # * :month_format_string - Set to a format string. The string gets passed keys +:number+ (integer) # and +:name+ (string). A format string would be something like "%{name} (%02d)" for example. # See Kernel.sprintf for documentation on format sequences. # * :date_separator - Specifies a string to separate the date fields. Default is "" (i.e. nothing). # * :start_year - Set the start year for the year select. Default is Date.today.year - 5 if # you are creating new record. While editing existing record, :start_year defaults to # the current selected year minus 5. # * :end_year - Set the end year for the year select. Default is Date.today.year + 5 if # you are creating new record. While editing existing record, :end_year defaults to # the current selected year plus 5. # * :discard_day - Set to true if you don't want to show a day select. This includes the day # as a hidden field instead of showing a select field. Also note that this implicitly sets the day to be the # first of the given month in order to not create invalid dates like 31 February. # * :discard_month - Set to true if you don't want to show a month select. This includes the month # as a hidden field instead of showing a select field. Also note that this implicitly sets :discard_day to true. # * :discard_year - Set to true if you don't want to show a year select. This includes the year # as a hidden field instead of showing a select field. # * :order - Set to an array containing :day, :month and :year to # customize the order in which the select fields are shown. If you leave out any of the symbols, the respective # select will not be shown (like when you set discard_xxx: true. Defaults to the order defined in # the respective locale (e.g. [:year, :month, :day] in the en locale that ships with Rails). # * :include_blank - Include a blank option in every select field so it's possible to set empty # dates. # * :default - Set a default date if the affected date isn't set or is nil. # * :selected - Set a date that overrides the actual value. # * :disabled - Set to true if you want show the select fields as disabled. # * :prompt - Set to true (for a generic prompt), a prompt string or a hash of prompt strings # for :year, :month, :day, :hour, :minute and :second. # Setting this option prepends a select option with a generic prompt (Day, Month, Year, Hour, Minute, Seconds) # or the given prompt string. # * :with_css_classes - Set to true if you want assign different styles for 'select' tags. This option # automatically set classes 'year', 'month', 'day', 'hour', 'minute' and 'second' for your 'select' tags. # # If anything is passed in the +html_options+ hash it will be applied to every select tag in the set. # # NOTE: Discarded selects will default to 1. So if no month select is available, January will be assumed. # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute. # date_select("article", "written_on") # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute, # # with the year in the year drop down box starting at 1995. # date_select("article", "written_on", start_year: 1995) # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute, # # with the year in the year drop down box starting at 1995, numbers used for months instead of words, # # and without a day select box. # date_select("article", "written_on", start_year: 1995, use_month_numbers: true, # discard_day: true, include_blank: true) # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute, # # with two digit numbers used for months and days. # date_select("article", "written_on", use_two_digit_numbers: true) # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute # # with the fields ordered as day, month, year rather than month, day, year. # date_select("article", "written_on", order: [:day, :month, :year]) # # # Generates a date select that when POSTed is stored in the user variable, in the birthday attribute # # lacking a year field. # date_select("user", "birthday", order: [:month, :day]) # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute # # which is initially set to the date 3 days from the current date # date_select("article", "written_on", default: 3.days.from_now) # # # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute # # which is set in the form with todays date, regardless of the value in the Active Record object. # date_select("article", "written_on", selected: Date.today) # # # Generates a date select that when POSTed is stored in the credit_card variable, in the bill_due attribute # # that will have a default day of 20. # date_select("credit_card", "bill_due", default: { day: 20 }) # # # Generates a date select with custom prompts. # date_select("article", "written_on", prompt: { day: 'Select day', month: 'Select month', year: 'Select year' }) # # The selects are prepared for multi-parameter assignment to an Active Record object. # # Note: If the day is not included as an option but the month is, the day will be set to the 1st to ensure that # all month choices are valid. def date_select(object_name, method, options = {}, html_options = {}) Tags::DateSelect.new(object_name, method, self, options, html_options).render end # Returns a set of select tags (one for hour, minute and optionally second) pre-selected for accessing a # specified time-based attribute (identified by +method+) on an object assigned to the template (identified by # +object+). You can include the seconds with :include_seconds. You can get hours in the AM/PM format # with :ampm option. # # This method will also generate 3 input hidden tags, for the actual year, month and day unless the option # :ignore_date is set to +true+. If you set the :ignore_date to +true+, you must have a # +date_select+ on the same method within the form otherwise an exception will be raised. # # If anything is passed in the html_options hash it will be applied to every select tag in the set. # # # Creates a time select tag that, when POSTed, will be stored in the article variable in the sunrise attribute. # time_select("article", "sunrise") # # # Creates a time select tag with a seconds field that, when POSTed, will be stored in the article variables in # # the sunrise attribute. # time_select("article", "start_time", include_seconds: true) # # # You can set the :minute_step to 15 which will give you: 00, 15, 30 and 45. # time_select 'game', 'game_time', {minute_step: 15} # # # Creates a time select tag with a custom prompt. Use prompt: true for generic prompts. # time_select("article", "written_on", prompt: {hour: 'Choose hour', minute: 'Choose minute', second: 'Choose seconds'}) # time_select("article", "written_on", prompt: {hour: true}) # generic prompt for hours # time_select("article", "written_on", prompt: true) # generic prompts for all # # # You can set :ampm option to true which will show the hours as: 12 PM, 01 AM .. 11 PM. # time_select 'game', 'game_time', {ampm: true} # # The selects are prepared for multi-parameter assignment to an Active Record object. # # Note: If the day is not included as an option but the month is, the day will be set to the 1st to ensure that # all month choices are valid. def time_select(object_name, method, options = {}, html_options = {}) Tags::TimeSelect.new(object_name, method, self, options, html_options).render end # Returns a set of select tags (one for year, month, day, hour, and minute) pre-selected for accessing a # specified datetime-based attribute (identified by +method+) on an object assigned to the template (identified # by +object+). # # If anything is passed in the html_options hash it will be applied to every select tag in the set. # # # Generates a datetime select that, when POSTed, will be stored in the article variable in the written_on # # attribute. # datetime_select("article", "written_on") # # # Generates a datetime select with a year select that starts at 1995 that, when POSTed, will be stored in the # # article variable in the written_on attribute. # datetime_select("article", "written_on", start_year: 1995) # # # Generates a datetime select with a default value of 3 days from the current time that, when POSTed, will # # be stored in the trip variable in the departing attribute. # datetime_select("trip", "departing", default: 3.days.from_now) # # # Generate a datetime select with hours in the AM/PM format # datetime_select("article", "written_on", ampm: true) # # # Generates a datetime select that discards the type that, when POSTed, will be stored in the article variable # # as the written_on attribute. # datetime_select("article", "written_on", discard_type: true) # # # Generates a datetime select with a custom prompt. Use prompt: true for generic prompts. # datetime_select("article", "written_on", prompt: {day: 'Choose day', month: 'Choose month', year: 'Choose year'}) # datetime_select("article", "written_on", prompt: {hour: true}) # generic prompt for hours # datetime_select("article", "written_on", prompt: true) # generic prompts for all # # The selects are prepared for multi-parameter assignment to an Active Record object. def datetime_select(object_name, method, options = {}, html_options = {}) Tags::DatetimeSelect.new(object_name, method, self, options, html_options).render end # Returns a set of HTML select-tags (one for year, month, day, hour, minute, and second) pre-selected with the # +datetime+. It's also possible to explicitly set the order of the tags using the :order option with # an array of symbols :year, :month and :day in the desired order. If you do not # supply a Symbol, it will be appended onto the :order passed in. You can also add # :date_separator, :datetime_separator and :time_separator keys to the +options+ to # control visual display of the elements. # # If anything is passed in the html_options hash it will be applied to every select tag in the set. # # my_date_time = Time.now + 4.days # # # Generates a datetime select that defaults to the datetime in my_date_time (four days after today). # select_datetime(my_date_time) # # # Generates a datetime select that defaults to today (no specified datetime) # select_datetime() # # # Generates a datetime select that defaults to the datetime in my_date_time (four days after today) # # with the fields ordered year, month, day rather than month, day, year. # select_datetime(my_date_time, order: [:year, :month, :day]) # # # Generates a datetime select that defaults to the datetime in my_date_time (four days after today) # # with a '/' between each date field. # select_datetime(my_date_time, date_separator: '/') # # # Generates a datetime select that defaults to the datetime in my_date_time (four days after today) # # with a date fields separated by '/', time fields separated by '' and the date and time fields # # separated by a comma (','). # select_datetime(my_date_time, date_separator: '/', time_separator: '', datetime_separator: ',') # # # Generates a datetime select that discards the type of the field and defaults to the datetime in # # my_date_time (four days after today) # select_datetime(my_date_time, discard_type: true) # # # Generate a datetime field with hours in the AM/PM format # select_datetime(my_date_time, ampm: true) # # # Generates a datetime select that defaults to the datetime in my_date_time (four days after today) # # prefixed with 'payday' rather than 'date' # select_datetime(my_date_time, prefix: 'payday') # # # Generates a datetime select with a custom prompt. Use prompt: true for generic prompts. # select_datetime(my_date_time, prompt: {day: 'Choose day', month: 'Choose month', year: 'Choose year'}) # select_datetime(my_date_time, prompt: {hour: true}) # generic prompt for hours # select_datetime(my_date_time, prompt: true) # generic prompts for all def select_datetime(datetime = Time.current, options = {}, html_options = {}) DateTimeSelector.new(datetime, options, html_options).select_datetime end # Returns a set of HTML select-tags (one for year, month, and day) pre-selected with the +date+. # It's possible to explicitly set the order of the tags using the :order option with an array of # symbols :year, :month and :day in the desired order. # If the array passed to the :order option does not contain all the three symbols, all tags will be hidden. # # If anything is passed in the html_options hash it will be applied to every select tag in the set. # # my_date = Time.now + 6.days # # # Generates a date select that defaults to the date in my_date (six days after today). # select_date(my_date) # # # Generates a date select that defaults to today (no specified date). # select_date() # # # Generates a date select that defaults to the date in my_date (six days after today) # # with the fields ordered year, month, day rather than month, day, year. # select_date(my_date, order: [:year, :month, :day]) # # # Generates a date select that discards the type of the field and defaults to the date in # # my_date (six days after today). # select_date(my_date, discard_type: true) # # # Generates a date select that defaults to the date in my_date, # # which has fields separated by '/'. # select_date(my_date, date_separator: '/') # # # Generates a date select that defaults to the datetime in my_date (six days after today) # # prefixed with 'payday' rather than 'date'. # select_date(my_date, prefix: 'payday') # # # Generates a date select with a custom prompt. Use prompt: true for generic prompts. # select_date(my_date, prompt: {day: 'Choose day', month: 'Choose month', year: 'Choose year'}) # select_date(my_date, prompt: {hour: true}) # generic prompt for hours # select_date(my_date, prompt: true) # generic prompts for all def select_date(date = Date.current, options = {}, html_options = {}) DateTimeSelector.new(date, options, html_options).select_date end # Returns a set of HTML select-tags (one for hour and minute). # You can set :time_separator key to format the output, and # the :include_seconds option to include an input for seconds. # # If anything is passed in the html_options hash it will be applied to every select tag in the set. # # my_time = Time.now + 5.days + 7.hours + 3.minutes + 14.seconds # # # Generates a time select that defaults to the time in my_time. # select_time(my_time) # # # Generates a time select that defaults to the current time (no specified time). # select_time() # # # Generates a time select that defaults to the time in my_time, # # which has fields separated by ':'. # select_time(my_time, time_separator: ':') # # # Generates a time select that defaults to the time in my_time, # # that also includes an input for seconds. # select_time(my_time, include_seconds: true) # # # Generates a time select that defaults to the time in my_time, that has fields # # separated by ':' and includes an input for seconds. # select_time(my_time, time_separator: ':', include_seconds: true) # # # Generate a time select field with hours in the AM/PM format # select_time(my_time, ampm: true) # # # Generates a time select field with hours that range from 2 to 14 # select_time(my_time, start_hour: 2, end_hour: 14) # # # Generates a time select with a custom prompt. Use :prompt to true for generic prompts. # select_time(my_time, prompt: {day: 'Choose day', month: 'Choose month', year: 'Choose year'}) # select_time(my_time, prompt: {hour: true}) # generic prompt for hours # select_time(my_time, prompt: true) # generic prompts for all def select_time(datetime = Time.current, options = {}, html_options = {}) DateTimeSelector.new(datetime, options, html_options).select_time end # Returns a select tag with options for each of the seconds 0 through 59 with the current second selected. # The datetime can be either a +Time+ or +DateTime+ object or an integer. # Override the field name using the :field_name option, 'second' by default. # # my_time = Time.now + 16.minutes # # # Generates a select field for seconds that defaults to the seconds for the time in my_time. # select_second(my_time) # # # Generates a select field for seconds that defaults to the number given. # select_second(33) # # # Generates a select field for seconds that defaults to the seconds for the time in my_time # # that is named 'interval' rather than 'second'. # select_second(my_time, field_name: 'interval') # # # Generates a select field for seconds with a custom prompt. Use prompt: true for a # # generic prompt. # select_second(14, prompt: 'Choose seconds') def select_second(datetime, options = {}, html_options = {}) DateTimeSelector.new(datetime, options, html_options).select_second end # Returns a select tag with options for each of the minutes 0 through 59 with the current minute selected. # Also can return a select tag with options by minute_step from 0 through 59 with the 00 minute # selected. The datetime can be either a +Time+ or +DateTime+ object or an integer. # Override the field name using the :field_name option, 'minute' by default. # # my_time = Time.now + 6.hours # # # Generates a select field for minutes that defaults to the minutes for the time in my_time. # select_minute(my_time) # # # Generates a select field for minutes that defaults to the number given. # select_minute(14) # # # Generates a select field for minutes that defaults to the minutes for the time in my_time # # that is named 'moment' rather than 'minute'. # select_minute(my_time, field_name: 'moment') # # # Generates a select field for minutes with a custom prompt. Use prompt: true for a # # generic prompt. # select_minute(14, prompt: 'Choose minutes') def select_minute(datetime, options = {}, html_options = {}) DateTimeSelector.new(datetime, options, html_options).select_minute end # Returns a select tag with options for each of the hours 0 through 23 with the current hour selected. # The datetime can be either a +Time+ or +DateTime+ object or an integer. # Override the field name using the :field_name option, 'hour' by default. # # my_time = Time.now + 6.hours # # # Generates a select field for hours that defaults to the hour for the time in my_time. # select_hour(my_time) # # # Generates a select field for hours that defaults to the number given. # select_hour(13) # # # Generates a select field for hours that defaults to the hour for the time in my_time # # that is named 'stride' rather than 'hour'. # select_hour(my_time, field_name: 'stride') # # # Generates a select field for hours with a custom prompt. Use prompt: true for a # # generic prompt. # select_hour(13, prompt: 'Choose hour') # # # Generate a select field for hours in the AM/PM format # select_hour(my_time, ampm: true) # # # Generates a select field that includes options for hours from 2 to 14. # select_hour(my_time, start_hour: 2, end_hour: 14) def select_hour(datetime, options = {}, html_options = {}) DateTimeSelector.new(datetime, options, html_options).select_hour end # Returns a select tag with options for each of the days 1 through 31 with the current day selected. # The date can also be substituted for a day number. # If you want to display days with a leading zero set the :use_two_digit_numbers key in +options+ to true. # Override the field name using the :field_name option, 'day' by default. # # my_date = Time.now + 2.days # # # Generates a select field for days that defaults to the day for the date in my_date. # select_day(my_date) # # # Generates a select field for days that defaults to the number given. # select_day(5) # # # Generates a select field for days that defaults to the number given, but displays it with two digits. # select_day(5, use_two_digit_numbers: true) # # # Generates a select field for days that defaults to the day for the date in my_date # # that is named 'due' rather than 'day'. # select_day(my_date, field_name: 'due') # # # Generates a select field for days with a custom prompt. Use prompt: true for a # # generic prompt. # select_day(5, prompt: 'Choose day') def select_day(date, options = {}, html_options = {}) DateTimeSelector.new(date, options, html_options).select_day end # Returns a select tag with options for each of the months January through December with the current month # selected. The month names are presented as keys (what's shown to the user) and the month numbers (1-12) are # used as values (what's submitted to the server). It's also possible to use month numbers for the presentation # instead of names -- set the :use_month_numbers key in +options+ to true for this to happen. If you # want both numbers and names, set the :add_month_numbers key in +options+ to true. If you would prefer # to show month names as abbreviations, set the :use_short_month key in +options+ to true. If you want # to use your own month names, set the :use_month_names key in +options+ to an array of 12 month names. # If you want to display months with a leading zero set the :use_two_digit_numbers key in +options+ to true. # Override the field name using the :field_name option, 'month' by default. # # # Generates a select field for months that defaults to the current month that # # will use keys like "January", "March". # select_month(Date.today) # # # Generates a select field for months that defaults to the current month that # # is named "start" rather than "month". # select_month(Date.today, field_name: 'start') # # # Generates a select field for months that defaults to the current month that # # will use keys like "1", "3". # select_month(Date.today, use_month_numbers: true) # # # Generates a select field for months that defaults to the current month that # # will use keys like "1 - January", "3 - March". # select_month(Date.today, add_month_numbers: true) # # # Generates a select field for months that defaults to the current month that # # will use keys like "Jan", "Mar". # select_month(Date.today, use_short_month: true) # # # Generates a select field for months that defaults to the current month that # # will use keys like "Januar", "Marts." # select_month(Date.today, use_month_names: %w(Januar Februar Marts ...)) # # # Generates a select field for months that defaults to the current month that # # will use keys with two digit numbers like "01", "03". # select_month(Date.today, use_two_digit_numbers: true) # # # Generates a select field for months with a custom prompt. Use prompt: true for a # # generic prompt. # select_month(14, prompt: 'Choose month') def select_month(date, options = {}, html_options = {}) DateTimeSelector.new(date, options, html_options).select_month end # Returns a select tag with options for each of the five years on each side of the current, which is selected. # The five year radius can be changed using the :start_year and :end_year keys in the # +options+. Both ascending and descending year lists are supported by making :start_year less than or # greater than :end_year. The date can also be substituted for a year given as a number. # Override the field name using the :field_name option, 'year' by default. # # # Generates a select field for years that defaults to the current year that # # has ascending year values. # select_year(Date.today, start_year: 1992, end_year: 2007) # # # Generates a select field for years that defaults to the current year that # # is named 'birth' rather than 'year'. # select_year(Date.today, field_name: 'birth') # # # Generates a select field for years that defaults to the current year that # # has descending year values. # select_year(Date.today, start_year: 2005, end_year: 1900) # # # Generates a select field for years that defaults to the year 2006 that # # has ascending year values. # select_year(2006, start_year: 2000, end_year: 2010) # # # Generates a select field for years with a custom prompt. Use prompt: true for a # # generic prompt. # select_year(14, prompt: 'Choose year') def select_year(date, options = {}, html_options = {}) DateTimeSelector.new(date, options, html_options).select_year end # Returns an HTML time tag for the given date or time. # # time_tag Date.today # => # # time_tag Time.now # => # # time_tag Date.yesterday, 'Yesterday' # => # # time_tag Date.today, pubdate: true # => # # time_tag Date.today, datetime: Date.today.strftime('%G-W%V') # => # # # <%= time_tag Time.now do %> # Right now # <% end %> # # => def time_tag(date_or_time, *args, &block) options = args.extract_options! format = options.delete(:format) || :long content = args.first || I18n.l(date_or_time, :format => format) datetime = date_or_time.acts_like?(:time) ? date_or_time.xmlschema : date_or_time.iso8601 content_tag(:time, content, options.reverse_merge(:datetime => datetime), &block) end end class DateTimeSelector #:nodoc: include ActionView::Helpers::TagHelper DEFAULT_PREFIX = 'date'.freeze POSITION = { :year => 1, :month => 2, :day => 3, :hour => 4, :minute => 5, :second => 6 }.freeze AMPM_TRANSLATION = Hash[ [[0, "12 AM"], [1, "01 AM"], [2, "02 AM"], [3, "03 AM"], [4, "04 AM"], [5, "05 AM"], [6, "06 AM"], [7, "07 AM"], [8, "08 AM"], [9, "09 AM"], [10, "10 AM"], [11, "11 AM"], [12, "12 PM"], [13, "01 PM"], [14, "02 PM"], [15, "03 PM"], [16, "04 PM"], [17, "05 PM"], [18, "06 PM"], [19, "07 PM"], [20, "08 PM"], [21, "09 PM"], [22, "10 PM"], [23, "11 PM"]] ].freeze def initialize(datetime, options = {}, html_options = {}) @options = options.dup @html_options = html_options.dup @datetime = datetime @options[:datetime_separator] ||= ' — ' @options[:time_separator] ||= ' : ' end def select_datetime order = date_order.dup order -= [:hour, :minute, :second] @options[:discard_year] ||= true unless order.include?(:year) @options[:discard_month] ||= true unless order.include?(:month) @options[:discard_day] ||= true if @options[:discard_month] || !order.include?(:day) @options[:discard_minute] ||= true if @options[:discard_hour] @options[:discard_second] ||= true unless @options[:include_seconds] && !@options[:discard_minute] set_day_if_discarded if @options[:tag] && @options[:ignore_date] select_time else [:day, :month, :year].each { |o| order.unshift(o) unless order.include?(o) } order += [:hour, :minute, :second] unless @options[:discard_hour] build_selects_from_types(order) end end def select_date order = date_order.dup @options[:discard_hour] = true @options[:discard_minute] = true @options[:discard_second] = true @options[:discard_year] ||= true unless order.include?(:year) @options[:discard_month] ||= true unless order.include?(:month) @options[:discard_day] ||= true if @options[:discard_month] || !order.include?(:day) set_day_if_discarded [:day, :month, :year].each { |o| order.unshift(o) unless order.include?(o) } build_selects_from_types(order) end def select_time order = [] @options[:discard_month] = true @options[:discard_year] = true @options[:discard_day] = true @options[:discard_second] ||= true unless @options[:include_seconds] order += [:year, :month, :day] unless @options[:ignore_date] order += [:hour, :minute] order << :second if @options[:include_seconds] build_selects_from_types(order) end def select_second if @options[:use_hidden] || @options[:discard_second] build_hidden(:second, sec) if @options[:include_seconds] else build_options_and_select(:second, sec) end end def select_minute if @options[:use_hidden] || @options[:discard_minute] build_hidden(:minute, min) else build_options_and_select(:minute, min, :step => @options[:minute_step]) end end def select_hour if @options[:use_hidden] || @options[:discard_hour] build_hidden(:hour, hour) else options = {} options[:ampm] = @options[:ampm] || false options[:start] = @options[:start_hour] || 0 options[:end] = @options[:end_hour] || 23 build_options_and_select(:hour, hour, options) end end def select_day if @options[:use_hidden] || @options[:discard_day] build_hidden(:day, day || 1) else build_options_and_select(:day, day, :start => 1, :end => 31, :leading_zeros => false, :use_two_digit_numbers => @options[:use_two_digit_numbers]) end end def select_month if @options[:use_hidden] || @options[:discard_month] build_hidden(:month, month || 1) else month_options = [] 1.upto(12) do |month_number| options = { :value => month_number } options[:selected] = "selected" if month == month_number month_options << content_tag(:option, month_name(month_number), options) + "\n" end build_select(:month, month_options.join) end end def select_year if !@datetime || @datetime == 0 val = '1' middle_year = Date.today.year else val = middle_year = year end if @options[:use_hidden] || @options[:discard_year] build_hidden(:year, val) else options = {} options[:start] = @options[:start_year] || middle_year - 5 options[:end] = @options[:end_year] || middle_year + 5 options[:step] = options[:start] < options[:end] ? 1 : -1 options[:leading_zeros] = false options[:max_years_allowed] = @options[:max_years_allowed] || 1000 if (options[:end] - options[:start]).abs > options[:max_years_allowed] raise ArgumentError, "There are too many years options to be built. Are you sure you haven't mistyped something? You can provide the :max_years_allowed parameter." end build_options_and_select(:year, val, options) end end private %w( sec min hour day month year ).each do |method| define_method(method) do @datetime.kind_of?(Numeric) ? @datetime : @datetime.send(method) if @datetime end end # If the day is hidden, the day should be set to the 1st so all month and year choices are # valid. Otherwise, February 31st or February 29th, 2011 can be selected, which are invalid. def set_day_if_discarded if @datetime && @options[:discard_day] @datetime = @datetime.change(:day => 1) end end # Returns translated month names, but also ensures that a custom month # name array has a leading nil element. def month_names @month_names ||= begin month_names = @options[:use_month_names] || translated_month_names month_names.unshift(nil) if month_names.size < 13 month_names end end # Returns translated month names. # => [nil, "January", "February", "March", # "April", "May", "June", "July", # "August", "September", "October", # "November", "December"] # # If :use_short_month option is set # => [nil, "Jan", "Feb", "Mar", "Apr", "May", "Jun", # "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] def translated_month_names key = @options[:use_short_month] ? :'date.abbr_month_names' : :'date.month_names' I18n.translate(key, :locale => @options[:locale]) end # Looks up month names by number (1-based): # # month_name(1) # => "January" # # If the :use_month_numbers option is passed: # # month_name(1) # => 1 # # If the :use_two_month_numbers option is passed: # # month_name(1) # => '01' # # If the :add_month_numbers option is passed: # # month_name(1) # => "1 - January" # # If the :month_format_string option is passed: # # month_name(1) # => "January (01)" # # depending on the format string. def month_name(number) if @options[:use_month_numbers] number elsif @options[:use_two_digit_numbers] '%02d' % number elsif @options[:add_month_numbers] "#{number} - #{month_names[number]}" elsif format_string = @options[:month_format_string] format_string % {number: number, name: month_names[number]} else month_names[number] end end def date_order @date_order ||= @options[:order] || translated_date_order end def translated_date_order date_order = I18n.translate(:'date.order', :locale => @options[:locale], :default => []) date_order = date_order.map { |element| element.to_sym } forbidden_elements = date_order - [:year, :month, :day] if forbidden_elements.any? raise StandardError, "#{@options[:locale]}.date.order only accepts :year, :month and :day" end date_order end # Build full select tag from date type and options. def build_options_and_select(type, selected, options = {}) build_select(type, build_options(selected, options)) end # Build select option HTML from date value and options. # build_options(15, start: 1, end: 31) # => " # # ..." # # If use_two_digit_numbers: true option is passed # build_options(15, start: 1, end: 31, use_two_digit_numbers: true) # => " # # ..." # # If :step options is passed # build_options(15, start: 1, end: 31, step: 2) # => " # # ..." def build_options(selected, options = {}) options = { leading_zeros: true, ampm: false, use_two_digit_numbers: false }.merge!(options) start = options.delete(:start) || 0 stop = options.delete(:end) || 59 step = options.delete(:step) || 1 leading_zeros = options.delete(:leading_zeros) select_options = [] start.step(stop, step) do |i| value = leading_zeros ? sprintf("%02d", i) : i tag_options = { :value => value } tag_options[:selected] = "selected" if selected == i text = options[:use_two_digit_numbers] ? sprintf("%02d", i) : value text = options[:ampm] ? AMPM_TRANSLATION[i] : text select_options << content_tag(:option, text, tag_options) end (select_options.join("\n") + "\n").html_safe end # Builds select tag from date type and HTML select options. # build_select(:month, "...") # => "" def build_select(type, select_options_as_html) select_options = { :id => input_id_from_type(type), :name => input_name_from_type(type) }.merge!(@html_options) select_options[:disabled] = 'disabled' if @options[:disabled] select_options[:class] = [select_options[:class], type].compact.join(' ') if @options[:with_css_classes] select_html = "\n" select_html << content_tag(:option, '', :value => '') + "\n" if @options[:include_blank] select_html << prompt_option_tag(type, @options[:prompt]) + "\n" if @options[:prompt] select_html << select_options_as_html (content_tag(:select, select_html.html_safe, select_options) + "\n").html_safe end # Builds a prompt option tag with supplied options or from default options. # prompt_option_tag(:month, prompt: 'Select month') # => "" def prompt_option_tag(type, options) prompt = case options when Hash default_options = {:year => false, :month => false, :day => false, :hour => false, :minute => false, :second => false} default_options.merge!(options)[type.to_sym] when String options else I18n.translate(:"datetime.prompts.#{type}", :locale => @options[:locale]) end prompt ? content_tag(:option, prompt, :value => '') : '' end # Builds hidden input tag for date part and value. # build_hidden(:year, 2008) # => "" def build_hidden(type, value) select_options = { :type => "hidden", :id => input_id_from_type(type), :name => input_name_from_type(type), :value => value }.merge!(@html_options.slice(:disabled)) select_options[:disabled] = 'disabled' if @options[:disabled] tag(:input, select_options) + "\n".html_safe end # Returns the name attribute for the input tag. # => post[written_on(1i)] def input_name_from_type(type) prefix = @options[:prefix] || ActionView::Helpers::DateTimeSelector::DEFAULT_PREFIX prefix += "[#{@options[:index]}]" if @options.has_key?(:index) field_name = @options[:field_name] || type if @options[:include_position] field_name += "(#{ActionView::Helpers::DateTimeSelector::POSITION[type]}i)" end @options[:discard_type] ? prefix : "#{prefix}[#{field_name}]" end # Returns the id attribute for the input tag. # => "post_written_on_1i" def input_id_from_type(type) id = input_name_from_type(type).gsub(/([\[\(])|(\]\[)/, '_').gsub(/[\]\)]/, '') id = @options[:namespace] + '_' + id if @options[:namespace] id end # Given an ordering of datetime components, create the selection HTML # and join them with their appropriate separators. def build_selects_from_types(order) select = '' first_visible = order.find { |type| !@options[:"discard_#{type}"] } order.reverse_each do |type| separator = separator(type) unless type == first_visible # don't add before first visible field select.insert(0, separator.to_s + send("select_#{type}").to_s) end select.html_safe end # Returns the separator for a given datetime component. def separator(type) return "" if @options[:use_hidden] case type when :year, :month, :day @options[:"discard_#{type}"] ? "" : @options[:date_separator] when :hour (@options[:discard_year] && @options[:discard_day]) ? "" : @options[:datetime_separator] when :minute, :second @options[:"discard_#{type}"] ? "" : @options[:time_separator] end end end class FormBuilder # Wraps ActionView::Helpers::DateHelper#date_select for form builders: # # <%= form_for @person do |f| %> # <%= f.date_select :birth_date %> # <%= f.submit %> # <% end %> # # Please refer to the documentation of the base helper for details. def date_select(method, options = {}, html_options = {}) @template.date_select(@object_name, method, objectify_options(options), html_options) end # Wraps ActionView::Helpers::DateHelper#time_select for form builders: # # <%= form_for @race do |f| %> # <%= f.time_select :average_lap %> # <%= f.submit %> # <% end %> # # Please refer to the documentation of the base helper for details. def time_select(method, options = {}, html_options = {}) @template.time_select(@object_name, method, objectify_options(options), html_options) end # Wraps ActionView::Helpers::DateHelper#datetime_select for form builders: # # <%= form_for @person do |f| %> # <%= f.datetime_select :last_request_at %> # <%= f.submit %> # <% end %> # # Please refer to the documentation of the base helper for details. def datetime_select(method, options = {}, html_options = {}) @template.datetime_select(@object_name, method, objectify_options(options), html_options) end end end end