laravel 之 Eloquent 模型修改器和序列化示例

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model {
 public function getFirstNameAttribute($value) {
  return ucfirst($value);
 }
}

$user = App\User::find(1);
$firstName = $user- first_name;

public function setFirstNameAttribute ($value) {
 $this- attributes['first_name'] = strtolower($value);
}

$user = App\User::find(1);
$user- first_name = 'Sally';

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model{
 protected $dates = [
  'created_at',
  'updated_at',
  'deleted_at'
 ];
}

$user = App\User::find(1);
$user- deleted_at = Carbon::now();
$user- save();

$user = App\User::find(1);
echo $user- deleted_at- getTimestamp();

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Flight extends Model {
 protected $dateFormat = 'U';
}

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model {
 protected $casts = [
  'is_admin' =  'boolean',
 ];
}

$user = App\User::find(1);
if ($user- is_admin) {
 //
}

# protected $casts = [
#  'options' =  'array',
# ];

$user = App\User::find(1);
$options = $user- options;
$options['key'] = 'value';
$user- options = $options;
$user- save();

$user = App\User::with('roles')- first();
return $user- toArray();

$user = App\User::find(1);
return $user- toJson();
// 或者
return (string) $user; // 自动调用 toJson
// 或者
return App\User::all();

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;

class User extends Model {
 protected $hidden = ['password'];
}

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;

class User extends Model {
 protected $visible = ['first_name', 'last_name'];
}

return $user- makeVisible('attribute')- toArray();
return $user- makeHidden('attribute')- toArray();

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;

class User extends Model {
 protected $appends = ['is_admin'];
}

# 在 appends 数组中的属性也遵循模型中 visible 和 hidden 设置
public function getIsAdminAttribute() {
 return $this- attributes['is_admin'] == 'yes';
}