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Do

2.hours.ago # => Thu, 27 Aug 2015 14:39:36 AFT +04:30
1.day.from_now # => Fri, 28 Aug 2015 16:39:36 AFT +04:30
Time.zone.parse("2015-08-27T12:09:36Z") # => Thu, 27 Aug 2015 16:39:36 AFT +04:30
Time.current # => Thu, 27 Aug 2015 16:39:36 AFT +04:30
Time.current.utc.iso8601 # When supliyng an API ("2015-08-27T12:09:36Z")
Time.strptime("2015-08-27T12:09:36Z", "%Y-%m-%dT%H:%M:%S%z").in_time_zone # If you can’t use Time.zone.parse (Thu, 27 Aug 2015 16:39:36 AFT +04:30)
Date.current # If you really can’t have a Time or DateTime for some reason (Thu, 27 Aug 2015)

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xcode-select --install
gem install nokogiri

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sudo chown -R mysql:mysql /usr/local/mysql
sudo chmod -R 755 /usr/local/mysql

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ln -s /usr/local/opt/readline/lib/libreadline.7.0.dylib /usr/local/opt/readline/lib/libreadline.6.dylib

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require 'sidekiq/api'

# 1. Clear retry set

Sidekiq::RetrySet.new.clear

# 2. Clear scheduled jobs 

Sidekiq::ScheduledSet.new.clear

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const winston = require('winston');

const Logger = (function() {
  var instance;

  function Logger() {}

  Logger.prototype.logger = new winston.Logger({
    exitOnError: false,

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def offset_in_hours(time_zone)
  TZInfo::Timezone.get(time_zone).current_period.offset.utc_total_offset.to_f / 3600.0
end

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namespace :db do
  desc "reset sequences for a specific table or all tables"

  task reset_sequence: :environment do
    sql = <<-SQL
SELECT 'SELECT SETVAL(' ||
       quote_literal(quote_ident(PGT.schemaname) || '.' || quote_ident(S.relname)) ||
       ', COALESCE(MAX(' ||quote_ident(C.attname)|| '), 1) ) FROM ' ||
       quote_ident(PGT.schemaname)|| '.'||quote_ident(T.relname)|| ';' as query
FROM pg_class AS S,

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# frozen_string_literal: true

namespace :migration do
  task rename: :environment do
    Dir['db/migrate/*'].sort.each do |filename|
      sleep 1

      File.rename(
        filename,
        filename.sub(/[0-9]+/, Time.current.strftime('%Y%m%d%H%M%S'))

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activerecord.errors.models.[model_name].attributes.[attribute_name]
activerecord.errors.models.[model_name]
activerecord.errors.messages