Utumizi wa MVC katika PHP

Wacha tuangalie utumizi wa pamoja wa yote yaliyojifunza. Hebu tuseme, kwa mfano, kwenye tovuti yetu kuna makala-kurasa fulani. Sisi tunataka ama kuonyesha makala moja, au kuonyesha makala zote. Wacha tuchambue jinsi ya kufanya hivyo katika mfumo wetu wa kazi.

Jedwali kwenye Hifadhidata

Kuanza, tuunde jedwali pages kwenye hifadhidata. Tuongeze safu id, title na text. Tuijaze hii jedwali na data fulani kupitia PhpMyAdmin.

Modeli

Tutengeneze modeli na mbinu ya kupata kipande kimoja cha data na mbinu ya kupata vipande vyote vya data:

<?php
	namespace Project\Models;
	use \Core\Model;
	
	class Page extends Model
	{
		public function getById($id)
		{
			return $this->findOne("SELECT * FROM pages WHERE id=$id");
		}
		
		public function getAll()
		{
			return $this->findMany("SELECT id, title FROM pages");
		}
	}
?>

Uroutingi

Tutengeneze uroutingi unaofaa:

<?php
	use \Core\Route;
	
	return [
		new Route('/page/:id', 'page', 'one'),
		new Route('/pages/',   'page', 'all'),
	];
?>

Kidhibiti

Tutengeneze kidhibiti:

<?php
	namespace Project\Controllers;
	use \Core\Controller;
	use \Project\Models\Page;
	
	class PageController extends Controller
	{
		public function one($params)
		{
			$page = (new Page) -> getById($params['id']);
			
			$this->title = $page['title'];
			return $this->render('page/one', [
				'text' => $page['text'],
				'h1' => $this->title
			]);
		}
		
		public function all()
		{
			$this->title = 'Orodha ya kurasa zote';
			
			$pages = (new Page) -> getAll();
			return $this->render('page/all', [
				'pages' => $pages,
				'h1' => $this->title
			]);
		}
	}
?>

Mionekano

Tutengeneze muonekano wa mbinu one:

<h1><?= $h1; ?></h1>
<div id="content">
	<?= $text; ?>
</div>

Tutengeneze muonekano wa mbinu all:

<h1><?= $h1; ?></h1>
<div id="content">
	<table>
		<tr>
			<th>id</th>
			<th>kichwa</th>
			<th>kiungo</th>
		</tr>
		<?php foreach ($pages as $page): ?>
		<tr>
			<td><?= $page['id']; ?></td>
			<td><?= $page['title']; ?></td>
			<td><a href="/page/<?= $page['id']; ?>/">kiungo kwenye ukurasa</td>
		</tr>
		<?php endforeach; ?>
	</table>
</div>

Kazi za Vitendo

Wacha tuseme kwenye hifadhidata yako kuna bidhaa. Kila bidhaa ina jina, bei na kiasi, maelezo. Tekeleza kuonyesha bidhaa moja kupitia id na bidhaa zote kama ilivyofanyika katika nadharia.