maecha

<?php $posttags = get_the_tags(); if ($posttags) { $key = array_search($posttags, 'TAG_NAME'); $posttags[$key]; ?>
  <!-- something do -->
<?php } ?>

maecha

// KUSO-CODE
export class HogeCustomValidatior {
  positiveIntegerValidatator() {
    let elm1 = document.getElementById('number_hoge1');
    let elm2 = document.getElementById('number_hoge2');
    let elms = [elm1, elm2];

    elms.forEach(function (elm) {
      elm.addEventListener('change', function(event){
        if (event.target.value.match(/\D/)) {

maecha

def get_hoge_times
  48.times.map.each_with_index {|i| (Time.parse('0:00') + 30.minutes * i).strftime('%H:%M')}
end

maecha

getControllerName() {
  // Ex) DOMAIN.com/NAME_SPACE/CONTROLLER_NAME/ACTION
  
  var pathname = window.location.pathname;  // /NAME_SPACE/CONTROLLER_NAME/ACTION
  let splitedPathnames = pathname.replace(/\//, '');  // [ 'NAME_SPACE', 'CONTROLLER_NAME', 'ACTION' ]
  return splitedPathnames.split('/')[1];  // CONTROLLER_NAME
}

maecha

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception
  
  if Rails.env.production? || Rails.env.staging?
    # 他のエラーハンドリングでキャッチできなかった場合に
    # 500 Internal Server Error(システムエラー)を発生させる
    rescue_from Exception, with: :handle_500

maecha

ADE

$ ruby -v
ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-linux]

$ bundle exec rails -v
Rails 5.1.4

maecha

############################################################################# 
# via: https://docs.mongodb.com/manual/tutorial/install-mongodb-on-red-hat/ #
# via: https://docs.mongodb.com/manual/tutorial/transparent-huge-pages/     #
# via: https://qiita.com/SOJO/items/dc5bf9b4375eab14991b                    #
#############################################################################

$ vi /etc/yum.repos.d/mongodb-org-3.6.repo
[mongodb-org-3.6]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.6/x86_64/

maecha

$ruby -v
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]

$ bundle exec rails -v
Rails 5.1.4

$ yarn -v
1.5.1

$ bundle install

maecha

gem 'gretel'

maecha

gem 'font-awesome-rails'