Laravel (Eloquent)

Question

I want to know how to make relationship using laravel Model & Eloquent.

I have data structur something like this

UserTable

username
groups
id

GroupTable

id
name
remark

My question is how to display user groups (user can assign to many groups) and how to count how many users that assigned to each group.

thanks.

Update

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;
}

is that right? and how to get currently saved user_id (it has auto increment column).

Answer 1

You will need to create a pivot table assigning each user to their respective groups.

so basically your tables would be like:

User Table

id
username

Groups Table

id
name
remark

User -> Group Pivot Table

user_id
group_id

Then you can use an Eloquent relationship on your user model to define your relational method like so:

class User extends Model {

    public function groups() {

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

    }

}

Finally, you can return a collection of all the user's groups by doing the following:

$user->groups();

The Laravel documentation on the Eloquent ORM is phenomenal too. Happy hunting.