今天小编就为大家分享一篇laravel 之 Eloquent 模型修改器和序列化示例,具有很好的参考价值,希望对大家有所帮助。一起跟随小编过来看看吧
修改器
获取 <?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model {
public function getFirstNameAttribute($value) {
return ucfirst($value);
}
}
使用 Laravel 加密器 来加密一个被保存在数据库中的值,当你从 Eloquent 模型访问该属性时该值将被自动解密。$user = App\User::find(1);
$firstName = $user->first_name;
修改 public function setFirstNameAttribute ($value) {
$this->attributes['first_name'] = strtolower($value);
}
$user = App\User::find(1);
$user->first_name = 'Sally';
日期转化器 <?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();
可在属性上使用任何 Carbon 方法: $user = App\User::find(1);
echo $user->deleted_at->getTimestamp();
设置时间格式 <?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Flight extends Model {
protected $dateFormat = 'U';
}
属性类型转化 <?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class User extends Model {
protected $casts = [
'is_admin' => 'boolean',
];
}
现在当你访问 is_admin 属性时,它将会被转换成布尔值,即便保存在数据库里的值是一个整数:$user = App\User::find(1);
if ($user->is_admin) {
//
}
支持的转换的类型有:
integer
real
float
double
string
boolean
object
array
collection
date
datetime
timestamp# protected $casts = [
# 'options' => 'array',
# ];
$user = App\User::find(1);
$options = $user->options;
$options['key'] = 'value';
$user->options = $options;
$user->save();
序列化模型或集合
序列化成数组 $user = App\User::with('roles')->first();
return $user->toArray();
序列化成 JSON $user = App\User::find(1);
return $user->toJson();
// 或者
return (string) $user; // 自动调用 toJson
// 或者
return App\User::all();
隐藏来自 json 的属性 <?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'];
}
临时隐藏 return $user->makeVisible('attribute')->toArray();
return $user->makeHidden('attribute')->toArray();
添加参数到 json 中 <?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';
}
以上这篇laravel 之 Eloquent 模型修改器和序列化示例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持CodeAE代码之家 。
原文链接:https://blog.csdn.net/OneGoal/article/details/76637960