Php 拉雷维尔（雄辩）

我想知道如何使用拉威尔模型和雄辩的关系

我有这样的数据结构

UserTable

username
groups
id

分组表

id
name
remark

public function store(Request $request){
    $member = new Member();
    $member->username = $request->input('name');
    $member->gender = $request->input('gender');
    $member->joindate = $request->input('joindate');
    $member->remarks = $request->input('remarks');
    if ($request->hasFile('photo')) {
        if ($request->file('photo')->isValid()) {
            $path = $this->upload($request);
        }
    }
    $member->save();

    foreach ($request->only('groups[]') as $key => $group){
        $pivot = new pivot();
        $pivot->user_id = ????? //how to get user id?
    }
}

public function upload(Request $request)
{
    $path = $request->file('photo')->store('profile');
    return $path;
}

id
username

id
name
remark

user_id
group_id

我的问题是如何显示用户组（用户可以分配到多个组） 以及如何计算分配给每个组的用户数

谢谢

更新

id
name
remark

public function store(Request $request){
    $member = new Member();
    $member->username = $request->input('name');
    $member->gender = $request->input('gender');
    $member->joindate = $request->input('joindate');
    $member->remarks = $request->input('remarks');
    if ($request->hasFile('photo')) {
        if ($request->file('photo')->isValid()) {
            $path = $this->upload($request);
        }
    }
    $member->save();

    foreach ($request->only('groups[]') as $key => $group){
        $pivot = new pivot();
        $pivot->user_id = ????? //how to get user id?
    }
}

public function upload(Request $request)
{
    $path = $request->file('photo')->store('profile');
    return $path;
}

id
username

id
name
remark

user_id
group_id

是这样吗？

---

以及如何获取当前保存的用户id（它具有自动增量列）。

您需要创建一个数据透视表，将每个用户分配到各自的组

因此，基本上您的表格如下所示：

用户表

id
name
remark

public function store(Request $request){
    $member = new Member();
    $member->username = $request->input('name');
    $member->gender = $request->input('gender');
    $member->joindate = $request->input('joindate');
    $member->remarks = $request->input('remarks');
    if ($request->hasFile('photo')) {
        if ($request->file('photo')->isValid()) {
            $path = $this->upload($request);
        }
    }
    $member->save();

    foreach ($request->only('groups[]') as $key => $group){
        $pivot = new pivot();
        $pivot->user_id = ????? //how to get user id?
    }
}

public function upload(Request $request)
{
    $path = $request->file('photo')->store('profile');
    return $path;
}

id
username

id
name
remark

user_id
group_id

组表

id
name
remark

public function store(Request $request){
    $member = new Member();
    $member->username = $request->input('name');
    $member->gender = $request->input('gender');
    $member->joindate = $request->input('joindate');
    $member->remarks = $request->input('remarks');
    if ($request->hasFile('photo')) {
        if ($request->file('photo')->isValid()) {
            $path = $this->upload($request);
        }
    }
    $member->save();

    foreach ($request->only('groups[]') as $key => $group){
        $pivot = new pivot();
        $pivot->user_id = ????? //how to get user id?
    }
}

public function upload(Request $request)
{
    $path = $request->file('photo')->store('profile');
    return $path;
}

id
username

id
name
remark

user_id
group_id

用户->组数据透视表

id
name
remark

public function store(Request $request){
    $member = new Member();
    $member->username = $request->input('name');
    $member->gender = $request->input('gender');
    $member->joindate = $request->input('joindate');
    $member->remarks = $request->input('remarks');
    if ($request->hasFile('photo')) {
        if ($request->file('photo')->isValid()) {
            $path = $this->upload($request);
        }
    }
    $member->save();

    foreach ($request->only('groups[]') as $key => $group){
        $pivot = new pivot();
        $pivot->user_id = ????? //how to get user id?
    }
}

public function upload(Request $request)
{
    $path = $request->file('photo')->store('profile');
    return $path;
}

id
username

id
name
remark

user_id
group_id

然后，您可以在用户模型上使用雄辩的关系来定义关系方法，如下所示：

class User extends Model {

    public function groups() {

        return $this->belongsToMany(Group::class, 'user_group_pivot_table_name', 'user_id', 'group_id');

    }

}

最后，您可以通过执行以下操作返回所有用户组的集合：

$user->groups();

---

关于雄辩的ORM的研究也是惊人的。快乐狩猎。

公共函数存储（请求$Request）{$member=new member（）；$member->username=$Request->input（'name'）；$member->gender=$Request->input（'gender'）；$member->joindate=$Request->input（'comments'）；if（$Request->hasFile（'photo'））{if（$Request->file（'photo'））->isValid（）{$path=$this->upload（$request）；}}}$member->save（）；foreach（$request->only（'groups[]）作为$key=>$group）{$pivot=new pivot（）；$pivot->user_id=？？？？？}对吗？以及如何获取用户id（auto inc）？请参阅更新的答案！然后你可以通过foreach循环来浏览这个集合。至于你的评论，我想你是想存储一个头像？如果是这种情况，请确保上传文件后，您也会将该文件分配给用户，以便您知道要在其个人资料上显示的图像。使用Laravel的pivot表的优点在于它们的使用是透明的。用户模型似乎在与组模型通信，当然我们知道情况并非如此。您只需确保当用户“加入”一个新组时，您在透视表中创建了一个新条目来显示这一点。