Laravel 8 如何加入 3 表口才

Question

i have 3 tables

user

user_id
name_user
contacts
request_id

request_register

request_id
user_id
team_id

team

team_id
name_team

i want get list of user details who register to team with spesific id, example:

team with id 1

id_user	name_user	contacts	team_id	name_team
1	michael	1234	1	phoenix
2	john	1232	1	phoenix
3	cindy	1222	1	phoenix

Answer 1

You can use whereHas() method provided by Laravel, but you have to specify the relationships needed to query using the method, probably like this:

$teamId = //retrieve the team id...;
$users = User::whereHas('request_register', function() (Builder $query) use ($teamId) {
   $query->where('team_id', $teamId);
})->get();

This will automatically make a join between users and request_register to get what you want to get.