修改器
获取
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class User extends Model { public function getFirstNameAttribute( $value ) { return ucfirst( $value ); } } |
使用 Laravel 加密器 来加密一个被保存在数据库中的值,当你从 Eloquent 模型访问该属性时该值将被自动解密。
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$user = App\User::find(1); $firstName = $user ->first_name; |
修改
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public function setFirstNameAttribute ( $value ) { $this ->attributes[ 'first_name' ] = strtolower ( $value ); } |
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$user = App\User::find(1); $user ->first_name = 'Sally' ; |
日期转化器
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class User extends Model{ protected $dates = [ 'created_at' , 'updated_at' , 'deleted_at' ]; } |
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$user = App\User::find(1); $user ->deleted_at = Carbon::now(); $user ->save(); |
可在属性上使用任何 Carbon 方法:
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$user = App\User::find(1); echo $user ->deleted_at->getTimestamp(); |
设置时间格式
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class Flight extends Model { protected $dateFormat = 'U' ; } |
属性类型转化
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class User extends Model { protected $casts = [ 'is_admin' => 'boolean' , ]; } |
现在当你访问 is_admin 属性时,它将会被转换成布尔值,即便保存在数据库里的值是一个整数:
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$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
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# protected $casts = [ # 'options' => 'array' , # ]; $user = App\User::find(1); $options = $user ->options; $options [ 'key' ] = 'value' ; $user ->options = $options ; $user ->save(); |
序列化模型或集合
序列化成数组
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$user = App\User::with( 'roles' )->first(); return $user ->toArray(); |
序列化成 JSON
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$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
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class User extends Model { protected $hidden = [ 'password' ]; } |
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class User extends Model { protected $visible = [ 'first_name' , 'last_name' ]; } |
临时隐藏
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return $user ->makeVisible( 'attribute' )->toArray(); return $user ->makeHidden( 'attribute' )->toArray(); |
添加参数到 json 中
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<?php namespace App; use Illuminate\Database\Eloquent\Model; class User extends Model { protected $appends = [ 'is_admin' ]; } |
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# 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服务器之家。
原文链接:https://blog.csdn.net/OneGoal/article/details/76637960