db.WriteParticipant erstellt und dazu alle IDs von int auf int64 umgestellt

packages/data/db.go

@@ -320,3 +320,22 @@ func (db *DB) GetInstructors() (*[]*types.Instructor, error) {
 
 	return &instructors, nil
 }
+
+func (db *DB) WriteParticipant(p *types.Participant) error {
+	result, err := db.Exec(`
+  INSERT INTO participants
+  	(first_name, last_name, company)
+  VALUES
+  	(?, ?, ?)
+  `, p.FirstName, p.LastName, p.Company)
+	if err != nil {
+		return fmt.Errorf("*DB.writeParticipant: db.Exec(): %v\n", err)
+	}
+
+	p.ID, err = result.LastInsertId()
+	if err != nil {
+		return fmt.Errorf("*DB.writeParticipant: result.LastInsertId(): %v\n", err)
+	}
+
+	return nil
+}