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talks/using-laravel-collections-outside-laravel/2017-12-21-nomad-php/slides.md
Oliver Davies 137bbb1b2d Update image path
2017-12-21 19:11:29 +00:00

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autoscale: true build-lists: true theme: simple, 1

Using Laravel Collections...
Outside Laravel

250%

[.build-lists: false]

  • Web Developer
  • Drupal, Symfony, Silex, Laravel, Sculpin
  • @opdavies
  • oliverdavies.uk

right

Collections++

^ Became a fan of Collections whilst learning Laravel Powerful object orientated way to interact with arrays Store items within the collection, run methods, chainable More readable, less temporary variables Video on Laracasts, Adam Wathan's refactoring to Collections Wanted to use them with different PHP projects e.g. Drupal

collect(['foo', 'bar']); // ['foo', 'bar']

collect('foobar'); // ['foobar']

$object = new stdClass();
$object->foo = 'bar'; 
collect($object); // ['foo' => 'bar']
collect($object)->get('foo'); // bar

^ How do you make a collection? collect function is provided String, array or object Stored as items within the Collection object

$collection = collect(['a', 'b', 1, 'c', 2, 'd', 'e', 3, 4]);

$collection->count(); // 9

$collection->first(); // a

$collection->first(function ($item) {
  return is_numeric($item);
}); // 1

$collection->contains(2); // true

$collection->contains([2, 10]); // false

$collection->filter(function ($item) {
  return $item > 2;
}); // [3, 4]

^ Once you have a collection, what can you do with it? "contains" - no more needle/haystack, haystack/needle "filter" - filters false, null values Can pass callbacks to first and filter, return true or false as needed.

$collection = collect([
    ['name' => 'John', 'email' => 'john@example.com', 'age' => 31],
    ['name' => 'Jane', 'email' => 'jane@example.com', 'age' => 27],
]);

$collection->pluck('name'); // ['John', 'Jane']

$collection->pluck('name')->sort(); // ['Jane', 'John']

$collection->filter(function ($person) {
    return $person['age'] >= 30;
})->pluck('name'); // ['John']

100%

^ This is great, but how can I do that in my Drupal code? How can I do that?

There’s a module for that! -- Drupalers

There's not a module for that. :( -- Me

fit

^ Drupal 7

1.0: Write my own Collection class

^ Wrote my own Collection class Wrote my own tests

^ Maybe 70% of what Laravels' could do.

^ Can't remember how, but then I found this.

Collect - Illuminate Collections as a separate package. -- https://packagist.org/packages/tightenco/collect

Import Laravel's Collections into non-Laravel packages easily, without needing to require the entire Illuminate\Support package. -- https://packagist.org/packages/tightenco/collect

600%

^ Can install via Composer

composer require tightenco/collect

fit

1.0: Write my own Collection class

2.0: Use someone else’s Collection class

^ More fully featured, less code to maintain

120%

[.build-lists: false]

  • Install Composer
  • Require tightenco/collect
  • Include autoload.php
  • collect() away!

[.build-lists: false]

  • Install Composer
  • Require tightenco/collect
  • Include autoload.php
  • collect() away!

100%

// index.php

require __DIR__ . '/vendor/autoload.php';

$collection = collect(['foo', 'bar']);

$collection->each(function ($item) {
    // Do something.
});

^ Require/include autoload.php Start using Collections! collect function is autoloaded

150%

^ Drupal 8, Sculpin site, PHP libraries

Thanks!

@opdavies