laravel Eloquent 模型返回 0 作为主键
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Eloquent model returns 0 as primary key
提问by Alan
I have this migration:
我有这个迁移：
Schema::create('provincias', function (Blueprint $table) {
$table->string('codigo', 2);
$table->string('nombre', 50);
$table->timestamp('creado');
$table->primary('codigo');
});
This is my model:
这是我的模型：
class Provincia extends Model
{
protected $primaryKey = 'codigo';
public $timestamps = false;
}
I run the migration and save data like this:
我运行迁移并像这样保存数据：
$provincia = new Provincia;
$provincia->codigo = "BA";
$provincia->nombre = "Buenos Aires";
$provincia->save();
The problem is that when I get all and dump:
问题是，当我得到所有并转储时：
$provincias = Provincia::all();
return $provincias;
The primary key "codigo" is always 0 even when I check the database table and it has the proper value:
即使我检查数据库表并且它具有正确的值，主键“codigo”也始终为 0：
{
codigo: 0,
nombre: "Buenos Aires",
creado: "2015-12-24 21:00:24"
}
回答by lagbox
You can try setting public $incrementing = false;on your model so eloquent doesn't expect your primary key to be an autoincrement primary key.
您可以尝试public $incrementing = false;在您的模型上进行设置，因此 eloquent 不希望您的主键是自动增量主键。
回答by StrongLucky
You can also set the type of primary key:
您还可以设置主键的类型：
protected $keyType = 'string';
public $incrementing = false;
Important note. You should add the second line. $incrementing = false. If you do not this, the key will be 0 after calling save()on your model.
重要的提示。您应该添加第二行。$incrementing = false. 如果你不这样做，调用save()你的模型后，key 将为 0 。
