如何根据 Eloquent 关系向表中插入外键数组答案

【问题标题】：How to insert into a table based on an Eloquent relationship an array of foreign keys如何根据 Eloquent 关系向表中插入外键数组
【发布时间】：2019-04-15 08:19:33
【问题描述】：

我有两个型号TeamMember 和ProjectRequest。

一个TeamMember 可以有一个ProjectRequest，这就是我在TeamMember 上创建以下Eloquent 关系的原因：

class TeamMember extends Model {
 //
 protected $table = 'team_members';
 protected $fillable = ['project_request_id'];

 // Relations
 public function projectTeam() {
 return $this->hasOne('\App\Models\ProjectRequest', 'project_request_id');
}
}

在我的控制器中，我想查询两个表，但是它返回失败消息。

重要的是要知道$request->projectTeam 是一个电子邮件数组，如下所示：

array:2 [
       0 => "mv@something.com"
       1 => "as@something.com"
       ]

这意味着我需要将电子邮件所在数组中的每个团队成员的project_request_ id 批量插入team_members 表中。

我怎样才能以正确的方式做到这一点？以下是我的尝试：

 public function createProjectTeam(Request $request){
    try {
        $title = $request->projectTitle;
        $TeamMember = $request->projectTeam;
        $projectRequest = ProjectRequest::create(['project_title' => $title]);
        $projectRequestId = $projectRequest->id;
        $projectTeam = $this->teamMembers->projectTeam()->create(['project_request_id'=> $projectRequestId])->where('email', $TeamMember);
        //$projectTeam = TeamMember::createMany(['project_request_id' => $projectRequestId])->where($TeamMember);
        //dd($projectTeam);
        return $projectRequest.$projectTeam;

    } catch(\Exception $e){
        return ['success' => false, 'message' => 'project team creation failed'];
    }

}

【问题讨论】：

标签： arrays where bulkinsert laravel-5.8 eloquent-relationship

【解决方案1】：

您可以做一些事情。

Eloquent 提供了一个whereIn() 方法，允许您查询某个字段在指定数组中的哪个位置等于一个或多个。

其次，您可以使用update() 方法将所有符合条件的团队成员更新为project_request_id：

public function createProjectTeam(Request $request)
{
    try {
        $projectRequest = ProjectRequest::create(['project_title' => $request->projectTitle]);

        TeamMember::whereIn('email', $request->projectTeam)
             ->update([
                 'project_request_id' => $projectRequest->id 
             ]);

        return [
            'success'      => true,
            'team_members' => $request->projectTeam
        ];


    } catch(\Exception $e) {
        return [
            'success' => false,
            'message' => 'project team creation failed'
        ];
    }
}

我希望这会有所帮助。

【讨论】：