laravel Eloquent firstOrCreate 文档或用法
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Eloquent firstOrCreate documentation or usage
提问by Clark T.
I'm attempting to seek a table to see if a column named "name" exists if so return the value and if not create that row with a null value i saw firstOrCreate but i cannot figure out how to use it for the life of me.
我正在尝试寻找一个表，以查看是否存在名为“name”的列，如果存在，则返回该值，如果不使用空值创建该行，我看到了 firstOrCreate 但我无法弄清楚如何在我的一生中使用它.
This is what i currently have, can someone lend a hand?
这是我目前拥有的，有人可以帮忙吗？
class Settings extends Eloquent
{
protected $table = 'settings';
protected $primaryKey = 'name';
public static function get($settingName)
{
return self::firstOrCreate(array('name' => $settingName));
// return self::select(array('value'))->where('name', '=', $settingName)->first()->value;
}
}
回答by Antonio Carlos Ribeiro
The create() method does mass assignment and this is a big security issue, so Laravel has a protection against it. Internally it has guarded = ['*'], so all your columns will be protected against mass assignment. You have some options:
create() 方法进行批量赋值，这是一个很大的安全问题，所以 Laravel 有一个保护措施。在内部，它已保护 = ['*']，因此您的所有列都将受到保护以防止批量分配。你有一些选择：
Set the fillable columns of your model:
设置模型的可填充列：
class User extends Eloquent {
protected $fillable = array('first_name', 'last_name', 'email');
}
Or set only the ones you want to keep guarded:
或者只设置你想要保护的那些：
class User extends Eloquent {
protected $guarded = array('password');
}
You may, at your own risk also do:
您也可以自行承担风险：
class User extends Eloquent {
protected $guarded = array();
}
And everything will be unguarded.
一切都将毫无防备。
Take a look a the docs: http://laravel.com/docs/eloquent#mass-assignment
看看文档：http: //laravel.com/docs/eloquent#mass-assignment
You also could use your Facade to call it:
您也可以使用 Facade 来调用它：
class Settings extends Eloquent
{
protected $table = 'settings';
protected $primaryKey = 'name';
public static function get($settingName)
{
return Settings::firstOrCreate(array('name' => $settingName));
}
}
