Cara Implementasi Rdf Di Laravel / Php
Cara Implementasi RDF di Laravel / PHP
Kalau kamu mau implementasi RDF + Visualisasi Graph di Laravel atau PHP, itu bisa banget!
caranya seperti berikut :
1. RDF di PHP
Ada beberapa library RDF di PHP seperti:
EasyRDF → https://www.easyrdf.org/
ARC2 (sedikit lama tapi masih jalan)
rdf-php (lebih ringan)
Yang paling banyak dipakai sekarang: EasyRDF
2. Flow Umum di Laravel
Laravel (PHP) untuk RDF:
Gunakan EasyRDF untuk buat, parsing, dan query RDF
Simpan data RDF atau query hasilnya
Untuk visualisasi graph (NetworkX / Matplotlib kan Python), jadi kita bisa:
a) Export RDF ke format JSON atau JSON-LD
b) Pakai library JavaScript di frontend seperti vis-network, cytoscape.js, atau d3.js untuk visualisasi graph di browser langsung.
3. Step-by-Step lebih konkrit:
✅ Install EasyRDF di Laravel Project
Tambahkan EasyRDF via Composer:
composer require easyrdf/easyrdf✅ Contoh Membuat RDF Graph di PHP (Laravel Controller)
resource('ex:Buku001', 'ex:Buku');
$penulis = $graph->resource('ex:Penulis001', 'ex:Penulis');
$penerbit = $graph->resource('ex:Penerbit001', 'ex:Penerbit');
$buku->add('ex:judul', 'Belajar RDF');
$buku->add('ex:ditulisOleh', $penulis);
$buku->add('ex:diterbitkanOleh', $penerbit);
$buku->addLiteral('ex:tahunTerbit', 2022);
$penulis->add('ex:nama', 'Ahmad Fauzi');
$penerbit->add('ex:nama', 'Pustaka Cerdas');
// Serialize RDF Graph ke JSON-LD atau RDF/XML
$rdfJson = $graph->serialise('jsonld');
// Bisa dikirim ke View
return response()->json(json_decode($rdfJson));
}
}✅ Frontend Visualisasi Graph
Setelah PHP menyiapkan RDF sebagai JSON-LD, kita bisa visualisasi dengan JavaScript di frontend!
Misal pakai vis-network.js:
Tambahkan di blade view (resources/views/graph.blade.php)
<!DOCTYPE html>
<!DOCTYPE html>
<html>
<head>
<title>Visualisasi RDF Graph</title>
<script type="text/javascript" src="https://unpkg.com/vis-network/standalone/umd/vis-network.min.js"></script>
<style>
#graph { width: 100%; height: 700px; border: 1px solid lightgray; }
</style>
</head>
<body>
<h2>Graph Buku - Penulis - Penerbit</h2>
<div id="graph"></div>
<script type="text/javascript">
fetch('/rdf-graph')
.then(response => response.json())
.then(data => {
// Parsing JSON-LD RDF ke nodes & edges
let nodes = [];
let edges = [];
let nodeIds = [];
for (const [subject, props] of Object.entries(data['@graph'])) {
if (!nodeIds.includes(subject)) {
nodes.push({id: subject, label: subject});
nodeIds.push(subject);
}
for (const [predikat, objek] of Object.entries(props)) {
if (Array.isArray(objek)) {
objek.forEach(o => {
if (!nodeIds.includes(o['@id'])) {
nodes.push({id: o['@id'], label: o['@id']});
nodeIds.push(o['@id']);
}
edges.push({from: subject, to: o['@id'], label: predikat});
});
} else {
edges.push({from: subject, to: objek, label: predikat});
}
}
}
const container = document.getElementById('graph');
const dataGraph = {
nodes: new vis.DataSet(nodes),
edges: new vis.DataSet(edges)
};
const options = {
edges: { arrows: 'to' },
layout: { improvedLayout: true }
};
new vis.Network(container, dataGraph, options);
});
</script>
</body>
</html>Flow Akhir Laravel:
| Bagian | Tools |
|---|---|
| RDF Data | EasyRDF (di PHP Laravel) |
| API Output | JSON-LD |
| Frontend View | vis-network.js (JavaScript) |
| Visualisasi | Graph interaktif di Browser |
Summary:
PHP Laravel buat RDF pakai EasyRDF ✅
API Response JSON-LD ✅
Visualisasi network graph di frontend browser pakai JavaScript ✅
Bisa clusterkan Buku, Penulis, Penerbit dengan warna berbeda di frontend! ✅
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