Freek.dev

PHP Uk Conference is an excellent conference where I had the pleasure of speaking this year. All sessions were recorded. Last week the organizers released all the videos. Here's the entire playlist:

https://www.youtube.com/playlist?list=PL_aPVo2HeGF-_djRi_UVWWLdkVpYQFnFm

Read more

Jarek Tkaczyk demonstrates how you can use a helper relation to eager load specific models.

Have you ever needed to show only single related model from the hasMany relationship on a set of parents?

Being it latest, highest or just random, it’s not very clever to load whole collection using eager loading, just like running query per every parent.

Of course you can do that better, and now let me show you how.

https://softonsofa.com/tweaking-eloquent-relations-how-to-get-latest-related-model/

Read more

My colleague Sebastian recently released a new package called phpunit-snapshot-assertions. In a new post on his blog he tells all about it.

The gist of snapshot testing is asserting that a set of data hasn’t changed compared to a previous version, which is a snapshot of the data, to prevent regressions. The difference between a classic assertEquals and an assertMatchesSnapshot is that you don't write the expectation yourself when snapshot testing. When a snapshot assertion happens for the first time, it creates a snapshot file with the actual output, and marks the test as incomplete. Every subsequent run will compare the output with the existing snapshot file to check for regressions.

https://medium.com/@sebdedeyne/a-package-for-snapshot-testing-in-phpunit-2e4558c07fe3

Read more

You might thing that PHP is not able to automatically perform a type check on items in an array. But using variadic constructor this is possible. Bert Ramakers wrote a blogpost with some good examples on how to do this.

One of the language features announced back in PHP 5.6 was the addition of the “…” token to denote that a function or method accepts a variable length of arguments.

Something I rarely see mentioned is that it’s possible to combine this feature with type hints to essentially create typed arrays.

https://medium.com/2dotstwice-connecting-the-dots/creating-strictly-typed-arrays-and-collections-in-php-37036718c921

Read more

Michael Dyrynda, one of the co-hosts of the Laravel News and the North Meets South podcasts, explains how to easily uptime your models with data coming from requests.

Instead of littering your controller method with multiple request()->has('field') checks, you can employ the request object's intersect method. The intersect method will return a new array containing only the keys that are present in both the specified list and the request itself.

Using intersect allows you to easily handle a PATCH request - one where you partially update a resource's data, rather than all of it as with a PUT - in a much more concise manner.

https://dyrynda.com.au/blog/partial-model-updates-in-laravel

Read more

There are multiple good ways to pass data from Laravel to Vue. In a new blogpost Jesse Schutt covers all the options.

It has been helpful to think of my application as "layers" or separate sections of code each with varying responsibilities. I like to think of Laravel as the intermediary between the persistent data in the database, and the Vue components comprising the front-end of the app.

Though the boundaries between Laravel and Vue may appear unclear at the outset, the only way one can know about the other's data is if it is explicitly passed. Blade templates implicitly know a lot about the application, but Vue operates on a different layer, so it only knows what we tell it. Fortunately, there are a number of ways to provide Vue with the data it needs.

https://zaengle.com/blog/layers-of-a-laravel-vue-application

Read more

In an article on the Hackster.io site explains in detail how he made a nice visualization of unit test results. Pretty cool what you can do with a raspberry pi, some LEDS and a couple of scripts.

I wanted to create a desktop gadget to visualize the progress of unit tests run via PHPUnit.I've named this project PHPUnicorn (by combining "PHPUnit" with "Unicorn pHAT").

https://www.hackster.io/colinodell/phpunicorn-visualizing-phpunit-tests-896208

Read more

On the JetBrains blog Gary Hockin explains how to easily run a single PHPUnit test.

To run all the tests in a single file, right-click the test in the Project Pane (the left-hand navigation pane), and select Run .

To run all the tests in a single class, right-click the class name in the editor, and select Run .

To run the tests in a single method, right-click the method name, and select Run .

https://blog.jetbrains.com/phpstorm/2017/01/working-with-phpunit-and-phpstorm/

Read more

One of my favourite features that was introduced in Laravel 5.4 are the higher order collection functions. It allows you to rewrite

collect($models)->filter(function(Model $model) {
   $model->passesFilter();
});

to:

collect($models)->filter->passesFilter();

This works with the filter method an a bunch of other collection methods.

In a new post on his blog Nicola Malizia explains how these methods work under the hood.

A new version of Laravel is available from 24 January 2017 and, as usual, it comes with a lot of new features. Among them, there is one that takes advantage of the dynamic nature of PHP. Some out of there will contempt this, but I find it awesome!

https://unnikked.ga/understanding-laravels-highorder-collections-ee4f65a3029e

Read more

On his blog Mark Baker shares some thoughts on how to use closure binding to avoid having import variables with the use keyword.

You'll learn how to rewrite

$filteredArrayData = array_filter(
    $arrayData,
    function($value) use ($minimumPrice, $maximumPrice) {
        return $value->price >= $minimumPrice &amp;&amp; $value->price < $maximumPrice;
    }
);

to

$filteredArrayData = array_filter(
    $bookData,
    $priceFilter->inRange(5.00, 15.00)
);

https://markbakeruk.net/2017/03/12/closure-binding-as-an-alternative-to-use-variables/

Read more

On css-tricks David Khourshid wrote a good introduction to RxJS.

According to ReactiveX.io: "ReactiveX is a library for composing asynchronous and event-based programs by using observable sequences."

That's a lot to digest in a single sentence. In this article, we're going to take a different approach to learning about RxJS (the JavaScript implementation of ReactiveX) and Observables, by creating reactive animations.

https://css-tricks.com/animated-intro-rxjs/

If you want to toy around with the same ideas in PHP check out RxPHP

Read more

Ondřej Mirtes, author of PHPStan lists some great tips to make a side project succesful.

Most developers have side projects. That's how we try out new things or make something that we miss on the market or in our dev stack. But most side projects end up unfinished and never actually see the light of day. And even if a developer builds up the courage to show his work to the public, he quickly finds out that just publishing a repository doesn't actually bring the masses to his doorstep. ... In this article, I'd like to share with you what I did to make sure that the project doesn't end up in the dustbin of history. I will concentrate on open source software, but the following advice may as well apply to any creative endeavour.

https://medium.com/@ondrejmirtes/how-i-got-from-0-to-1-000-stars-on-github-in-three-months-with-my-open-source-side-project-8ffe4725146#.211n6vihd

Read more

On his blog Frank De Jonge explains how he solved a performance problem in one of his projects.

Last week I took a deep dive into Symfony's Routing Component. A project I worked on suffered from a huge performance penalty caused by a routing mistake. This lead me on the path to discovering some interesting performance considerations. Some common practices align nicely with Symfony's optimisations, let's look into those.

https://blog.frankdejonge.nl/symfony-routing-performance-considerations/

Read more

Sebastian De Deyne, author of many Spatie packages, posted a new blog article on how to generate SEO Friendly Urls in Laravel.

When admins create or update an news item—or any other entity—in our homegrown CMS, a url slug is generated based on it's title. The downside here is that when the title changes, the old url would break. On the other hand, if we wouldn't regenerate the url on updates, titles that were edited later on would still have an old slug in the url, which isn't an ideal situation either.

https://sebastiandedeyne.com/posts/2017/non-breaking-seo-friendly-urls-in-laravel

Read more

A great feature of Laravel Spark is it's ability to impersonate other users. As an admin you can view all screens as if you are logged in as another user. This allows you to easily spot a problem that your user might be reporting. Laravel-impersonate is a package, made by MarceauKa and Thibault Chazottes that can add this behaviour to any Laravel app.

Here are some code examples taken from the readme.

Auth::user()->impersonate($otherUser); // You're now logged as the $otherUser.

Auth::user()->leaveImpersonation(); // You're now logged as your original user.

$manager = app('impersonate');

// Find an user by its ID
$manager->findUserById($id);

// TRUE if your are impersonating an user.
$manager->isImpersonating();

// Impersonate an user. Pass the original user and the user you want to impersonate
$manager->take($from, $to);

// Leave current impersonation
$manager->leave();

// Get the impersonator ID
$manager->getImpersonatorId();

It even includes some handy blade directives:

@canImpersonate
    <a href="{{ route('impersonate', $user->id) }}">Impersonate this user</a>
@endCanImpersonate

@impersonating
    <a href="{{ route('impersonate.leave') }}">Leave impersonation</a>
@endImpersonating

Want to know more, take a look at the package on GitHub.

Read more