dqaq59269 2016-06-24 17:09
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Laravel 5.2 - 使用SetIdAttribute()Mutator设置其他值

I am currently creating a blog where each Post row in my database will have a unique hash attribute that is based of the post's id (incrementing, always unique).

This my Post model

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Hashids;

class Post extends Model
{
  public function setTitleAttribute($value)
  {
    $this->attributes['title'] = $value;

    if (! $this->exists) {
      $this->attributes['slug'] = str_slug($value);
    }
  }

  public function setIdAttribute($value) {
    $this->attributes['id'] = $value;
    $this->attributes['hash'] = Hashids::encode($value);
  }
}

When I run this factory

$factory->define(App\Post::class, function (Faker\Generator $faker) {
    return [
        'title' => $faker->sentence(mt_rand(3, 10)),
        'content' => join("

", $faker->paragraphs(mt_rand(3, 6))),
        'author' => $faker->name,
        'category' => rand(1, 20),
    ];
});

The setIdAttribute($value) function is getting called, but my hash attribute is not being set. I am not sure if it is getting overwritten or what.

If I move the line

$this->attributes['hash'] = Hashids::encode($value);

to the function

public function setTitleAttribute($value)

and encode the title attribute it works fine, but I want to encode the 'id' attribute. Any idea how I would do this?

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2条回答 默认 最新

  • douzhang1364 2016-06-24 17:24
    关注

    You can add the following to your model:

    /**
     * Events
     */
    public static function boot()
    {
        parent::boot();
    
        static::created(function($model)
        {
            $model->hash = Hashids::encode($model->id);
            $model->slug = str_slug($model->title);
        }
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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