Laravel 模型 - 如果数据库表不存在则返回 null

Question

When I create a model, I want to check if the table exists in the DB. If it doesn't then I want to return a null. This is to prevent a record insert if the table doesn't exist yet.

In my model I have tried this. The Schema call returns false, but I'm still getting a model returned and not a null.

class SomeDataTable extends Model
{
  public function __construct($id)
  {
    $this->setTable($id);
    if (Schema::connection($this->connection)->hasTable($this->table) === false) {
      return null;
    }else{
      parent::__construct();
    }
  }

  public function setTable($id)
  {
    $this->table = $id.'_some_data_table';
  }
}

Answer 1

I'm not sure if you're looking for an ubiquitous solution. But what I'd do is do php aritsan migrate -m in the terminal to run migrations of all models. That way, all model tables are created by default.