feat: add the quizzes:import command for JSON quiz files

updates/20261002121917_add_completed_attempts_index.go

@@ -0,0 +1,23 @@
+// Code generated by summer make. DO NOT EDIT.
+
+package updates
+
+import (
+	"github.com/go-gormigrate/gormigrate/v2"
+	"gorm.io/gorm"
+)
+
+// AddCompletedAttemptsIndex returns the 20261002121917_add_completed_attempts_index gormigrate entry.
+// The partial index serves the per-user statistics of the quiz list (count
+// and best score of completed attempts).
+func AddCompletedAttemptsIndex() *gormigrate.Migration {
+	return &gormigrate.Migration{
+		ID: "20261002121917_add_completed_attempts_index",
+		Migrate: func(tx *gorm.DB) error {
+			return tx.Exec("CREATE INDEX golem15_quizzes_attempts_completed_index ON golem15_quizzes_attempts (user_id, quiz_id, score_percent) WHERE completed_at IS NOT NULL").Error
+		},
+		Rollback: func(tx *gorm.DB) error {
+			return tx.Exec("DROP INDEX IF EXISTS golem15_quizzes_attempts_completed_index").Error
+		},
+	}
+}