どのようにしてmysqlクエリをlaravelクエリに変換できますか?これは、あなたがよりよい解決策を見つけるまでは、クエリmysqlサブクエリをLaravelに変換する
SELECT
users.first_name,
users.id AS uid,
(
SELECT
COUNT(vpl_submissions.accept)
FROM
vpl_submissions
INNER JOIN vpl ON vpl_submissions.vpl = vpl.id
WHERE vpl.courseid = 2
AND vpl_submissions.accept = 1
AND vpl_submissions.userid = uid
) AS completed
FROM
users
INNER JOIN course_enroles ON users.id = course_enroles.user_id
WHERE course_enroles.course_id = 2
万が一「優雅」を見ましたか? https://laracasts.com/series/laravel-from-scratch-2017/episodes/7 https://laracasts.com/series/laravel-from-scratch-2017/episodes/15 –