stats.go with Create() method

Author: C

postgresql/stats.go

@@ -0,0 +1,30 @@
+package postgresql
+
+import (
+	"github.com/benchttp/worker/stats"
+)
+
+func (s StatsService) Create(stats stats.Stats, statsId, userId, tag string) error {
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+
+	insertIntoStatsDescriptor, err := tx.Prepare(`INSERT INTO public.stats_descriptor(id, user_id, tag, finished_at) VALUES($1, $2, $3, '2022-03-03 17:36:38-02')`)
+	if err != nil {
+		tx.Rollback()
+		return ErrPreparingStmt
+	}
+	defer insertIntoStatsDescriptor.Close()
+
+	if _, err = insertIntoStatsDescriptor.Exec(statsId, userId, tag); err != nil {
+		tx.Rollback()
+		return ErrExecutingPreparedStmt
+	}
+	err = tx.Commit()
+	if err != nil {
+		tx.Rollback()
+		return err
+	}
+	return nil
+}