from models import User, Achievement from app import db db.drop_all() db.create_all() persoonA = User(id="AAA") persoonB = User(id="BBB") persoonC = User(id="CCC") achievementA = Achievement(name="AA", achieved_by=persoonA.id) achievementB = Achievement(name="BB", achieved_by=persoonB.id) achievementA.endorsed_by.append(persoonC) db.session.add(persoonA) db.session.add(persoonB) db.session.add(persoonC) db.session.add(achievementA) db.session.add(achievementB) db.session.commit()