validation

<?php

namespace App\Rules;

use Closure;
use Illuminate\Contracts\Validation\ValidationRule;

export const initialState = (steps, initialData = {}) => ({
  steps,
  stepIndex: 0,
  data: initialData,
  errors: {},
});

package com.example.api.error;

import com.fasterxml.jackson.annotation.JsonInclude;

import java.time.Instant;
import java.util.List;

<h1>Create your account</h1>

<%= render "error_summary", record: @user %>

<%= form_with model: @user, url: signups_path do |f| %>
  <div class="field">

class ArticlesController < ApplicationController
  before_action :set_article, only: %i[edit update]

  def new
    @article = Article.new
  end

<?php

namespace App\Http\Requests;

use Illuminate\Contracts\Validation\Validator;
use Illuminate\Foundation\Http\FormRequest;

from dataclasses import dataclass


class ConfigError(Exception):
    pass

class User < ApplicationRecord
  has_many :posts, foreign_key: :author_id

  validates :email, presence: true,
                    uniqueness: { case_sensitive: false },
                    format: { with: URI::MailTo::EMAIL_REGEXP }

import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.JsonTypeInfo.As;
import com.fasterxml.jackson.annotation.JsonTypeInfo.Id;

import java.math.BigDecimal;

import pandas as pd

customers = pd.read_parquet('customers.parquet')
orders = pd.read_parquet('orders.parquet')

assert customers['customer_id'].is_unique, 'customer table must be unique by customer_id'

package api

import (
	"encoding/json"
	"net/http"
)

import { z } from 'zod';

export const createUserSchema = z
  .object({
    email: z.string().email(),
    name: z.string().min(1).max(120),