alsma

<?php

declare(strict_types=1);

namespace App\Transactional;

use Illuminate\{
    Database\DatabaseManager,
};

alsma

class EmailManager
{
    public function confirmEmail(User $user): User
    {
        $user = \DB::transaction(function () use ($user) {
            $user = User::lockForUpdate()->findOrFail($user->id);
            $user->email_confirmed = true;
            $user->save();

            event(new UserErmailConfiming($user)); // DO some operations inside transactions (i.e. log user actions to DB)

alsma

import React, { Component, PropTypes } from 'react';

class FormClass extends Component {
  static propTypes = {
    onSubmit: PropTypes.func.isRequired,
    setRef: PropTypes.func,
  };

  constructor(props) {
    super(props);

alsma

-- select all query --

SELECT b.bookTitle, a.authorName FROM book b 
INNER JOIN author_book ab ON ab.bookID = b.bookID
INNER JOIN author a ON a.authorID = ab.authorID
ORDER BY b.bookTitle

-- select all with authors concantenated --

SELECT b.bookTitle, GROUP_CONCAT(a.authorName) authors FROM book b

alsma

<?php

use Ramsey\Uuid\Uuid;

class Manager
{
    const DEFAULT_CONSUME_TIMEOUT = 12 * 60 * 60;
    const DEFAULT_BLPOP_INTERVAL = 30;

    /** @var \Redis */

alsma

<?php

namespace models\Instant\Action;

interface ActionInterface
{
    /**
     * Executes action
     *
     * @param array $args