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add chapter about data repositories, and start work on perfomance chapter

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lubiana 2022-04-06 01:21:17 +02:00
parent 11172fb3d3
commit 7a0f368e00
Signed by: lubiana
SSH key fingerprint: SHA256:vW1EA0fRR3Fw+dD/sM0K+x3Il2gSry6YRYHqOeQwrfk
165 changed files with 14028 additions and 2028 deletions
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69
app/src/Repository/MarkdownPageFilesystem.php
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@ -1,69 +0,0 @@
<?php declare(strict_types=1);
namespace Lubian\NoFramework\Repository;
use Lubian\NoFramework\Exception\NotFound;
use Lubian\NoFramework\Model\MarkdownPage;
use function array_filter;
use function array_map;
use function array_values;
use function assert;
use function count;
use function file_get_contents;
use function glob;
use function is_array;
use function random_int;
use function str_replace;
use function substr;
use function usleep;
final class MarkdownPageFilesystem implements MarkdownPageRepo
{
public function __construct(private readonly string $dataPath)
{
}
/**
* @return MarkdownPage[]
*/
public function all(): array
{
$fileNames = glob($this->dataPath . '*.md');
assert(is_array($fileNames));
return array_map(function (string $name): MarkdownPage {
usleep(random_int(200, 500) * 1000);
$content = file_get_contents($name);
$name = str_replace($this->dataPath, '', $name);
$name = str_replace('.md', '', $name);
$id = (int) substr($name, 0, 2);
$title = substr($name, 3);
return new MarkdownPage($id, $title, $content);
}, $fileNames);
}
public function byId(int $id): MarkdownPage
{
$callback = fn (MarkdownPage $p): bool => $p->id === $id;
$filtered = array_values(array_filter($this->all(), $callback));
if (count($filtered) === 0) {
throw new NotFound;
}
return $filtered[0];
}
public function byTitle(string $title): MarkdownPage
{
$callback = fn (MarkdownPage $p): bool => $p->title === $title;
$filtered = array_values(array_filter($this->all(), $callback));
if (count($filtered) === 0) {
throw new NotFound;
}
return $filtered[0];
}
public function save(MarkdownPage $page): MarkdownPage
{
return $page;
}
}