如何使用 laravel 将数组值插入数据库

Question

我有组和组成员，一张表用于组，我只存储组名，第二张表是组成员，我有 user_id,group_id 字段。

我正在使用邮递员创建 API，我想插入这样的组成员详细信息：

"group_members": [1,3]

我的身体要求是：

{
    "name": "Steve", // name is group name
    "group_members": [1,3]  // [1,3] here 1 and 3 is user_id
}

我想将 [1,3] 存储到 user_id 字段中的 group_members 表中，如果有 [1,3]，则应在 user_id 字段中输入两个条目 我还附上了我的桌子的屏幕截图：

我的控制器：

DB::beginTransaction();

    try{

        $request->request->add(['created_by' => Auth::user()->id]);
        $group = $this->group->create($request->only($this->group->getModel()->fillable));
        $request->request->add(['group_id' => $group->id]);
        $this->groupMembers->create($request->only($this->groupMembers->getModel()->fillable));

        DB::commit();

        return response([
            'status' => true,
            'message' => 'Group added',

        ], 200);

    } catch(\Exception $ex) {
        DB::rollback();
        return response([
            'status' => false,
            'message' => __('messages.validation_errors'),
            'errors' => $ex->getMessage(),
        ], 500);
    }

如何将此数组值存储到数据库中，我们将不胜感激？

               try {

        $group = $this->group->find($request->input('id'));
        $request->request->add(['updated_by' => Auth::user()->id]);
        $group->fill($request->all())->save();

        return response(['status' => true, 'message' => 'Group updated'], 500);

    } catch (\Exception $ex) {
        return response(['status' => false, 'message' => 'Validation Errors', 'errors' => $ex->getMessage()], 500);
    }





      public function updateGroup(Request $request)
    {
    $validator = UserValidations::validateGroup($request->all());

    if($validator->fails()) {
        return response(['status' => false, 'message' => 'Validation Errors', 'errors' => $validator->errors()->all()], 500);
    }

    try {

        $group = $this->group->find($request->input('id'));
        $request->request->add(['updated_by' => Auth::user()->id]);
        $group->fill($request->all())->save();

        return response(['status' => true, 'message' => 'Group updated'], 500);

    } catch (\Exception $ex) {
        return response(['status' => false, 'message' => 'Validation Errors', 'errors' => $ex->getMessage()], 500);
    }
}

Answer 1

使用attach 和many to many 关系来实现。

Group.php

class Group extends Model
{
    public function users()
    {
        return $this->belongsToMany('App\User', 'group_members');
    }
}

用户.php

class User extends Model
{
    public function groups()
    {
        return $this->belongsToMany('App\Group', 'group_members');
    }
}

现在，您只需执行以下操作即可按 ID 将成员添加到组：

$group = Group::where('name', $request->get('name'))->first();
$group->users()->attach($request->get('group_members', []));

如果您想从组中删除一个或多个成员，也是如此：

$group->users()->detach($request->get('group_members', []));

Answer 2

改变这两行

$request->request->add(['group_id' => $group->id]);
$this->groupMembers->create($request->only($this->groupMembers->getModel()->fillable));

到

$user_ids = $request->get('group_members');
foreach($user_ids as $user_id){
    $this->groupMembers->create(['group_id' => $group->id, 'user_id'=>$user_id]);
}

希望这能解决您的问题。