在 Laravel 中自动维护 slug 字段

$table->string('slug')->unique()->comment('url slug');Copy

// /app/Providers/AppServiceProvider.php
use Illuminate\Database\Schema\Blueprint;

Blueprint::macro('sluggable', function ($column = 'slug') {
    return static::string($column)->unique()->comment('url slug');
});Copy

$table->sluggable();Copy

<?php

namespace App\Models\Concerns;

use Illuminate\Support\Str;

trait Sluggable 
{   
    public static function bootSluggable()
    {
        static::saving(function ($model) {
            $attribute =  $model->sluggable();
            $model->$attribute = Str::slug(
                $model->getAttribute($attribute)
            );
        });
    }

    /**
     * Slug 字段
     * 
     * @return string
     */
    abstract public function sluggable(): string;

}Copy

<?php

namespace App\Models;

class Post extends Model
{   
    use Concerns\Sluggable;

    /**
     * 文章标题作为 Slug 字段
     * 
     * @return string
     */
    public function sluggable() : string
    {
        return 'title';
    }

    /**
     * 指定路由模型绑定的的键为 slug
     * 
     * @return string
     */
    public function getRouteKeyName()
    {
        return 'slug';
    }
}Copy