php Model::unguard() 在 Laravel 5 的数据库种子文件中做了什么？
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What does Model::unguard() do in the database seeder file from Laravel 5?
提问by Rohan
I am trying to find out what is the purpose of Model::unguard();and Model::reguard();in the DatabaseSeeder.phpfile that ships with Laravel. I have gone through the seeding documentation at laravel's site and googled but in vain.
我试图找出Laravel 附带的文件的目的Model::unguard();和内容。我已经浏览了 laravel 网站上的播种文档并用谷歌搜索但徒劳无功。Model::reguard();DatabaseSeeder.php
So what is the purpose of Model::unguard();? Assuming Model::reguard();is just the opposite.
那么目的是Model::unguard();什么？假设Model::reguard();正好相反。
回答by peaceman
Model::unguard()does temporarily disable the mass assignment protection of the model, so you can seed all model properties.
Model::unguard()暂时禁用模型的质量分配保护，因此您可以为所有模型属性设定种子。
Take a look at http://laravel.com/docs/5.1/eloquent#mass-assignmentfor more information about mass assignment in Eloquent.
查看http://laravel.com/docs/5.1/eloquent#mass-assignment了解有关 Eloquent 中批量分配的更多信息。
回答by Akongnwi Devert
Take for example the currency table Migration file
以货币表迁移文件为例
$table->double('rate');
$table->boolean('is_default')->default(false);
If your Currency Model file, the only fillables are
如果您的货币模型文件，唯一的可填写内容是
protected $fillable = [
'rate',
]
is_defaultcan never be set by mass assignment. For example
is_default永远不能通过批量赋值来设置。例如
Currency::create([
'rate' => 5.6,
'is_default' => true
])
will return a currency with
将返回一个货币
'rate' => 5.6
'is_default' => false
But you can mass assign the field using unguard and reguard as follows
但是您可以使用 unguard 和 reguard 批量分配字段，如下所示
Model::unguard()
Currency::create([
'rate' => 5.6,
'is_default' => true
])
Model::reguard()
Then your model will be created with
然后你的模型将被创建
'rate' => 5.6
'is_default' => true
