使用Laravel一次插入多个记录

Question

我将一行一行地插入数据，但我在某处听说，如果有许多数据要插入，则需要很多时间。那么，如何一次将它们全部插入？

public function add(Request $request)
{
    if ($request->ajax()) {
        $books = $request->books;
        foreach ($books as $book) {
            if (!empty($book)) {
                $add = new Book;
                $add->name = $book;
                $add->user_id = Auth::user()->id;
                $add->save();
            }
        }
    }
}

Answer 1

您应该能够执行以下操作：

DB::table('users')->insert([
    ['email' => '[e-mail]', 'votes' => 0],
    ['email' => '[e-mail]', 'votes' => 0]
]);

将要插入的所有值放入数组，然后将其传递给插入函数。

资料来源：https://laravel.com/docs/5.1/queries#inserts

Answer 2

正如其他人指出的，使用查询生成器是一次插入多条记录的唯一方法。幸运的是，Laravel和雄辩的ORM以许多有用的方式结合在一起。这种耦合允许您使用模型获取为该模型设置的查询生成器实例。

// use Auth;
// use Carbon;
// use App\Book;

public function add(Request $request)
{
    if($request->ajax())
    {
        // Submitted books
        $books = $request->books;

        // Book records to be saved
        $book_records = [];

        // Add needed information to book records
        foreach($books as $book)
        {
            if(! empty($book))
            {
                // Get the current time
                $now = Carbon::now();

                // Formulate record that will be saved
                $book_records[] = [
                    'name' => $book,
                    'user_id' => Auth::user()->id,
                    'updated_at' => $now,  // remove if not using timestamps
                    'created_at' => $now   // remove if not using timestamps
                ];
            }
        }

        // Insert book records
        Book::insert($book_records);
    }
}

Answer 3

public function add(Request $request)
  {
    if($request->ajax())
    {
       $books=$request->books;
       $data = array();
       foreach($books as $book)
       {
        if(!empty($book))
        {
          $data[] =[
                    'name' => $book,
                    'user_id' => Auth::id(),
                   ];                 

       }}
      Book::insert($data);
       <!--DB::table('books')->insert($data);-->
     }}

确保导入的使用light\Support\Facades\Auth