ruby on rails - How to make a model's column optional in rails5 - Stack Overflow

puts ShopifyAPI::Order.find(:all, :params => {:status => 'any', :limit => 250})

class ChangeDefaultvalueForHideSeasonSelector < ActiveRecord::Migration 
  def change 
    change_column_default :plussites, :hide_season_selector, true 
  end
end

file = "#{Rails.root}/public/users.csv"
headers = ["Name", "Company Name", "Email", "Role", "Team Name"]
CSV.open(file, 'w', write_headers: true, headers: headers) do |writer|
    Team.all.each do |team|
      team.users.each do |user|
        writer << [user.name, user.company_name , user.email, user.roles&.first&.name, team.name]
      end
    end
  end

# get "/articles?page=2"
request.original_url # => "http://www.example.com/articles?page=2"

array_of_hashes.any? {|h| h[:a] == 11}

When you want an optional belongs_to:


1) Just don't add in the field's migration
#migration_file_name.rb
#PLEASE DO NOT DO
null: false 

2) In the model use
#PLEASE DO
belongs_to :community, optional: true

txt = "a,s(d,f(4,5)),g,h"
pattern = Regexp.new('((?:[^,(]+|(\((?>[^()]+|\g<-1>)*\)))+)')
puts txt.scan(pattern).map &:first




(                        # first capturing group
    (?:                  # open a non capturing group
        [^,(]+           # all characters except , and (
      |                  # or
        (                # open the second capturing group
           \(            # (
            (?>          # open an atomic group
                [^()]+   # all characters except parenthesis
              |          # OR
                \g<-1>   # the last capturing group (you can also write \g<2>)
            )*           # close the atomic group
            \)           # )
        )                # close the second capturing group
    )+                   # close the non-capturing group and repeat it
)                        # close the first capturing group

% pkgutil --pkg-info=com.apple.pkg.CLTools_Executables | grep version
version: 12.2.0.0.1.1604076827

# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'rubygems'
require 'twilio-ruby'

# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = ENV['TWILIO_ACCOUNT_SID']
auth_token = ENV['TWILIO_AUTH_TOKEN']
@client = Twilio::REST::Client.new(account_sid, auth_token)

verification = @client.verify
                      .v2
                      .services('VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
                      .verifications
                      .create(to: '+15017122661', channel: 'sms')

puts verification.sid

# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'rubygems'
require 'twilio-ruby'

# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = ENV['TWILIO_ACCOUNT_SID']
auth_token = ENV['TWILIO_AUTH_TOKEN']
@client = Twilio::REST::Client.new(account_sid, auth_token)

verification = @client.verify
                      .v2
                      .services('VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
                      .verifications
                      .create(to: '+15017122661', channel: 'sms')

puts verification.sid

namespace :javascript do
  desc "Compiles each js file"
  task validate: :environment do
    JS_PATH = "app/assets/javascripts/**/*.js"
    Dir[JS_PATH].each do |file_name|
      puts "\n#{file_name}"
      puts Uglifier.compile(File.read(file_name))
    end
  end
end

$ rake db:reset db:migrate

$ rake db:drop db:create db:migrate

  def search
    baseurl = "https://api.themoviedb.org/3/discover/movie?api_key=#{ENV['REACT_APP_TMDB_API_KEY']}&language=en-						US&sort_by=popularity.desc&with_watch_monetization_types=flatrate&include_adult=false&include_video		=false&page=${moviePageIndex}";
    urladdon = params[:urlAddon]

    require 'uri'
    require 'net/http'

    uri = URI("#{baseurl}#{urladdon}")
    res = Net::HTTP.get_response(uri)

    if res.is_a?(Net::HTTPSuccess)
      render json: res.body
    else
      render json: res.body, status: :bad_request
    end
  end