{"id":8696,"date":"2016-08-23T11:23:51","date_gmt":"2016-08-23T11:23:51","guid":{"rendered":"https:\/\/dev.railscarma.com\/scheduling-recurring-events-ice-cube-gem\/"},"modified":"2021-06-06T11:48:22","modified_gmt":"2021-06-06T11:48:22","slug":"scheduling-recurring-events-ice-cube-gem","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/%e6%8a%80%e8%a1%93%e8%ab%96%e6%96%87\/scheduling-recurring-events-ice-cube-gem\/","title":{"rendered":"Ice Cube Gem \u3092\u4f7f\u7528\u3057\u3066\u5b9a\u671f\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u3092\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3059\u308b"},"content":{"rendered":"
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\n\t\t\t\t\t\t\t\t\tIce_cube is a ruby library for effectively taking care of repeated events (schedules). The force lies in the ability to indicate multiple rules, and have ice_cube rapidly make sense of whether the schedule falls on a specific date (.occurs_on?), or what times it happens at (.occurrences, .first, .all_occurrences).\n\nHow to get ice cube\n\nFor install use the below syntax\n\ngem install\n\nif you want to get the code\n
gem clone git:\/\/github.com\/seejohnrun\/ice_cube<\/blockquote>\nFor creating icecube schedule\n
schedule = IceCube::Schedule.new\nif we want to speciy startdate and enddate we have option to specify in the above mentioned schedule\n\nschedule = IceCube::Schedule.new(start = Time.now, :end_time => start + 600)<\/blockquote>\nDaily schedules<\/strong>\n\nAfter creating schedule we have an option to add recurrence rule for the above mentioned schedule\n\nconsider \u201cschedule every day\u201d on above mentioned time\n
schedule.add_recurrence_rule IceCube::Rule.daily<\/blockquote>\nconsider the same schedule with repeat \u201cn\u201d number of days\n
schedule.add_recurrence_rule IceCube::Rule.daily(repeat_every_n_days)<\/blockquote>\nin place of repeat_every_n_days you have option to specify the number of days\n\nWeekly schedules<\/strong>\n\nRecurring rule to generate weekly schedule\n
schedule.add_recurrence_rule IceCube::Rule.weekly<\/blockquote>\nrecurring rule to add repeat n number of weeks with the same schedule\n
schedule.add_recurrence_rule IceCube::Rule.weekly(repeat_every_n_weeks)<\/blockquote>\nConsider an example repeat the schedule on only week days (monday to friday)\n
schedule.add_recurrence_rule IceCube::Rule.weekly.day(1, 2, 3, 4, 5)<\/blockquote>\nEvery other week on monday and tuesday\n
schedule.add_recurrence_rule IceCube::Rule.weekly(2).day(:monday, :tuesday)\nor you can mention as<\/blockquote>\n
schedule.add_recurrence_rule IceCube::Rule.weekly(2).day(:monday, :tuesday)<\/blockquote>\nMonthly schedules<\/strong>\n\nrepeat the same schedule on every month\n
schedule.add_recurrence_rule IceCube::Rule.montly<\/blockquote>\nMonthly schedules(by day of Month)\nevery month on the first and last days of the month\n
schedule.add_recurrence_rule IceCube::Rule.monthly.day_of_month(1, -1)<\/blockquote>\nevery other month on the 15th of the month\n
schedule.add_recurrence_rule IceCube::Rule.monthly(2).day_of_month(15)<\/blockquote>\nMonthly (by day of Nth week)<\/strong>\n\n# every month on the first and last tuesdays of the month\n
schedule.add_recurrence_rule IceCube::Rule.monthly.day_of_week(:tuesday => [1, -1])<\/blockquote>\n# every other month on the first monday and last tuesday\n
schedule.add_recurrence_rule IceCube::Rule.monthly(2).day_of_week(:monday => [1],:tuesday => [-1])<\/blockquote>\nYearly(by day of year)<\/strong>\n\n# every year on the 100th days from the beginning and end of the year\n
schedule.add_recurrence_rule IceCube::Rule.yearly.day_of_year(100, -100)<\/blockquote>\n# every fourth year on new year’s eve\n
schedule.add_recurrence_rule IceCube::Rule.yearly(4).day_of_year(-1)<\/blockquote>\nYearly (by month of year)<\/strong>\n\n# every year on the same day as start_time but in january and february\n
schedule.add_recurrence_rule IceCube::Rule.yearly.month_of_year(:january, :februrary)<\/blockquote>\n# every third year in march\n
schedule.add_recurrence_rule IceCube::Rule.yearly(3).month_of_year(:march)<\/blockquote>\n# for programatic convenience (same as above)\n
schedule.add_recurrence_rule IceCube::Rule.yearly(3).month_of_year(3)<\/blockquote>\nHourly (by hour of day)<\/strong>\n\n# every hour on the same minute and second as start date\n
schedule.add_recurrence_rule IceCube::Rule.hourly<\/blockquote>\n# every other hour, on mondays\n
schedule.add_recurrence_rule IceCube::Rule.hourly(2).day(:monday)\nMinutely (every N minutes)<\/blockquote>\n# every 10 minutes\n
schedule.add_recurrence_rule IceCube::Rule.minutely(10)<\/blockquote>\n# every hour and a half, on the last tuesday of the month\n
schedule.add_recurrence_rule IceCube::Rule.minutely(90).day_of_week(:tuesday => [-1])<\/blockquote>\nSecondly (every N seconds)<\/strong>\n\n# every second\n
schedule.add_recurrence_rule IceCube::Rule.secondly<\/blockquote>\n# every 15 seconds between 12:00 – 12:59\n
schedule.add_recurrence_rule IceCube::Rule.secondly(15).hour_of_day(12)<\/blockquote>\nWith ice_cube, you can specify exception times also\nExample Repeat Every day except tomorrow\n
schedule = IceCube::Schedule.new(now = Time.now)\nschedule.add_recurrence_rule(IceCube::Rule.daily)\nschedule.add_exception_time(now + 1.day)\nlist occurrences until end_time\noccurrences = schedule.occurrences(end_time)<\/blockquote>\n# or the first (n) occurrences\n
schedule.first(n)<\/blockquote>\n# or the last (n) occurrences (if the schedule terminates)\n
schedule.last(n)<\/blockquote>\nTime Zones and ActiveSupport vs Standard Ruby Time Classes<\/strong>\n\nice_cube works great without ActiveSupport but only supports the environment’s single “local” time zone (ENV[‘TZ’]) or UTC. To correctly support multiple time zones (especially for DST), you should require ‘active_support\/time’.\nA schedule’s occurrences will be returned in the same class and time zone as the schedule’s start_time. Schedule start times are supported as:\n