controllers

class OnboardingForm
  include ActiveModel::Model
  include ActiveModel::Attributes

  STEPS = %i[account profile preferences].freeze

class FeatureFlag < ApplicationRecord
  validates :key, presence: true, uniqueness: true
  validates :percentage,
            numericality: { only_integer: true,
                            greater_than_or_equal_to: 0,
                            less_than_or_equal_to: 100 }

import { Type } from 'class-transformer';
import { IsInt, IsOptional, IsString, Max, Min } from 'class-validator';

export class CursorPaginationQuery {
  @IsOptional()
  @IsString()

module Paginatable
  extend ActiveSupport::Concern

  included do
    before_action :set_pagination_params, only: [:index]
  end

<?php

namespace App\Feature;

use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Contracts\Service\ResetInterface;

<?php

use App\Http\Controllers\CommentController;
use Illuminate\Support\Facades\Route;

// The ->scoped() call forces {comment} to resolve through $post->comments,

class ApplicationCommand
  Result = Struct.new(:value, :errors) do
    def success?
      errors.nil? || errors.empty?
    end

module DangerousAction
  extend ActiveSupport::Concern

  FRESH_WINDOW = 10.minutes

  class ConfirmationMismatch < StandardError; end

class ApplicationPolicy
  attr_reader :user, :record

  def initialize(user, record)
    @user = user
    @record = record

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

<?php

namespace App\Policies;

use App\Models\Article;
use App\Models\User;

class ProjectPresenter
  def initialize(project, include_tasks: true)
    @project = project
    @include_tasks = include_tasks
  end