将Laravel模型转换为JSON的API响应

Laravel

提供了几种将雄辩模型转换为JSON的方法，而Tojson（）是最直接的方法之一。此方法在模型如何为API响应中序列化提供了灵活性。

<!-- Syntax highlighted by torchlight.dev -->// Basic usage of toJson()
$user = User::find(1);
return $user->toJson();
// With JSON formatting options
return $user->toJson(JSON_PRETTY_PRINT);

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让我们探索使用tojson（）的API响应系统的实践示例

<!-- Syntax highlighted by torchlight.dev --><?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Article extends Model
{
    protected $appends = [&#39;reading_time&#39;];

    protected $hidden = [&#39;internal_notes&#39;];

    public function author()
    {
        return $this->belongsTo(User::class);
    }

    public function comments()
    {
        return $this->hasMany(Comment::class);
    }

    public function getReadingTimeAttribute()
    {
        return ceil(str_word_count($this->content) / 200);
    }

    public function toArray()
    {
        return [
            'id' => $this->id,
            'title' => $this->title,
            'content' => $this->content,
            'author' => $this->author->name,
            'reading_time' => $this->reading_time,
            'comments_count' => $this->comments()->count(),
            'created_at' => $this->created_at->toDateTimeString(),
            'updated_at' => $this->updated_at->toDateTimeString(),
        ];
    }
}

// In your controller
class ArticleController extends Controller
{
    public function show($id)
    {
        $article = Article::with(['author', 'comments.user'])->findOrFail($id);

        return $article->toJson();
    }

    public function index()
    {
        $articles = Article::with('author')->get();

        return response()->json($articles);  // Implicit conversion
    }
}

> laravel的tojson（）方法提供了一种将模型转换为JSON的有效方法，同时提供了通过模型属性和关系自定义输出的灵活性。

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