naoufalelh

Rails Active Storage Cheatsheet

• Rails Active Storage Cheatsheet
  • Install Active Storage
  • Usage
    • Model
    • Controller
    • Views (in ERB)
    • Display Image and its variants or Preview (PDF or Video)
• Install this libraries first

justalever

# Define the validator
# app/validators/array_validator.rb

class ArrayValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, values)
    Array(values).each do |value|
      options.each do |key, args|
        validator_options = { attributes: attribute }
        validator_options.merge!(args) if args.is_a?(Hash)

thadeu

ActiveStorageRemove

Do you need remove files in the active_storage rails?

Use this files :)

ghiculescu

require 'English'

namespace :db do # rubocop:disable Metrics/BlockLength
  task :prevent_disparate_pg_dump_versions => :environment do
    allowed_pg_dump_version = '9.6.10'.freeze

    `pg_dump --version`
    pg_dump_exit_status = $CHILD_STATUS.exitstatus

    locally_installed_version = `pg_dump --version`.chomp[/(\d.*)/,1] rescue nil

stevenharman

Heroku Release Phase + Review Apps + Rails

This is a simplified, but fairly thorough, set of scripts and configuration to enable Heroku Release Phase for Rails apps. Further, this particular set up plays nicely with Heroku Review Apps in that the release phase script will:

1. Fail, loudly, if the DB does not yet exist.
2. Load the DB schema if the current schema version (as determined by bin/rails db:version) is 0.
3. Run DB migrations otherwise.

For a "normal" app that usually means it will run the DB migrations.

dansteele

namespace :staging do
  desc 'create subdomain DNS record for Heroku review app'
  task :publish_dns do
    require 'dnsimple'
    require 'platform-api'

    STAGING_DOMAIN      = 'mystagingdomain.com'.freeze
    DNSIMPLE_ACCOUNT_ID = .freeze
    heroku_app_name    = ENV['HEROKU_APP_NAME']
    subdomain          = heroku_app_name.match(/.*(pr-\d+)/).captures.first

joshbuchea

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

danieleggert

GPG and git on macOS

Setup

No need for homebrew or anything like that. Works with https://www.git-tower.com and the command line.

1. Install https://gpgtools.org -- I'd suggest to do a customized install and deselect GPGMail.
2. Create or import a key -- see below for https://keybase.io
3. Run gpg --list-secret-keys and look for sec, use the key ID for the next step
4. Configure git to use GPG -- replace the key with the one from gpg --list-secret-keys

dstagner

So you want to generate ISO8601 formatted timestamps in Ruby, but need resolution finer than a second?

First, make sure to require 'time' in order to get ISO8601 formatting. But that gets you this:

2.1.0 :001 > require 'time'
 => true 
2.1.0 :002 > Time.now.utc.iso8601
 => "2015-11-12T04:46:43Z" 

TylerRick

ActionMailer::Base.class_eval do
  class << self

  protected

    # Override the version from the actionmailer gem in order to not log attachments.
    #
    # Note: This depends on the patch from https://github.com/mikel/mail/pull/858, which adds
    # parts.inspect_structure and fixes an issue with mail.without_attachments!
    #