Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
397 views
in Technique[技术] by (71.8m points)

php - How to dynamically set table name in Eloquent Model

I am new to Laravel. I am trying to use Eloquent Model to access data in DB.

I have tables that shares similarities such as table name.

So I want to use one Model to access several tables in DB like below but without luck.

Is there any way to set table name dynamically?

Any suggestion or advice would be appreciated. Thank you in advance.

Model:

class ProductLog extends Model
{

    public $timestamps = false;

    public function __construct($type = null) {

        parent::__construct();

        $this->setTable($type);
    }
}

Controller:

public function index($type, $id) {

    $productLog = new ProductLog($type);

    $contents = $productLog::all();

    return response($contents, 200);
}

Solution For those who suffer from same problem:

I was able to change table name by the way @Mahdi Younesi suggested.

And I was able to add where conditions by like below

$productLog = new ProductLog;
$productLog->setTable('LogEmail');

$logInstance = $productLog->where('origin_id', $carrier_id)
                          ->where('origin_type', 2);
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

The following trait allows for passing on the table name during hydration.

trait BindsDynamically
{
    protected $connection = null;
    protected $table = null;

    public function bind(string $connection, string $table)
    {
       $this->setConnection($connection);
       $this->setTable($table);
    }

    public function newInstance($attributes = [], $exists = false)
    {
       // Overridden in order to allow for late table binding.

       $model = parent::newInstance($attributes, $exists);
       $model->setTable($this->table);

       return $model;
    }

}

Here is how to use it:

class ProductLog extends Model
{
   use BindsDynamically;
}

Call the method on instance like this:

public function index() 
{
   $productLog = new ProductLog;

   $productLog->setTable('anotherTableName');

   $productLog->get(); // select * from anotherTableName


   $productLog->myTestProp = 'test';
   $productLog->save(); // now saves into anotherTableName
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...