Laravel插入多条记录，非数组变量

Question

您好，我有一个可以分配多个用户的表（项目）。创建新项目时，我需要将选定的用户插入到带有用户 ID 和创建的 project_id 的链接表中。

    $project = new Project;
    $project->project_name = $request->project_name;
    $project->expected_start_date = $request->expected_start_date;
    $project->expected_end_date = $request->expected_end_date;
    $project->project_desc = $request->project_desc;
    $project->client_id = $request->client_id;
    $project->save();

    foreach($request->user_id as $user){
        $link_project_user = new link_project_user;
        $link_project_user->user_id = $user;
        $link_project_user->project_id = $project->id;
        $link_project_user->save();
    }

目前我正在创建项目并通过 $project->id 获取 id，然后遍历所选用户并为每个用户创建一个新用户。

但是，这似乎有点低效，因为理论上这会对数据库进行多次查询。实现上述插入的最有效和最佳方式是什么。

我最初尝试传入一组用户，但这需要一组项目 ID。

Answer 1

您可以像这样进行批量插入。

$project = new Project;
$project->project_name = $request->project_name;
$project->expected_start_date = $request->expected_start_date;
$project->expected_end_date = $request->expected_end_date;
$project->project_desc = $request->project_desc;
$project->client_id = $request->client_id;
$project->save();

$lpus = [];

foreach($request->user_id as $user){
    $link_project_user["user_id"] = $user;
    $link_project_user["project_id"] = $project->id;
    $lpus[] = $link_project_user;   
}

link_project_user::insert($lpus);