Python db.drop_all函数代码示例

	def run(self):
		db.drop_all()
		db.create_all()
		db.session.add(Group('Diggers', 'Preschool'))
		db.session.add(Group('Discoverers', 'Year R-2'))
		db.session.add(Group('Explorers', 'Years 3-6'))
		db.session.commit()

 def run(app=app):
     """
     Creates the database in the application context
     :return: no return
     """
     with app.app_context():
         db.drop_all()

def init_db():
    db.drop_all()
    db.create_all()
    type_ids = {}
    rate_type_ids = {}
    for type_name in ["office", "meeting", "other"]:
        t = ListingType(type_name)
        db.session.add(t)
        db.session.commit()
        type_ids[type_name] = t
    for type_name in ["Hour", "Day", "Week", "Month", "3 Months", "6 Months", "Year"]:
        t = RateType(type_name)
        db.session.add(t)
        db.session.commit()
        rate_type_ids[type_name] = t
    db.session.add(Listing(address="1500 Union Ave #2500, Baltimore, MD",
                           lat="39.334497", lon="-76.64081",
                           name="Headquarters for Maryland Nonprofits", space_type=type_ids["office"], price=2500,
                           description="""Set in beautiful downtown Baltimore, this is the perfect space for you.

1800 sq ft., with spacious meeting rooms.

Large windows, free wifi, free parking, quiet neighbors.""", contact_phone="55555555555", rate_type=rate_type_ids['Month']))
    db.session.add(Listing(address="6695 Dobbin Rd, Columbia, MD",
                           lat="39.186198", lon="-76.824842",
                           name="Frisco Taphouse and Brewery", space_type=type_ids["meeting"], price=1700,
                           description="""Large open space in a quiet subdivision near Columbia.

High ceilings, lots of parking, good beer selection.""", rate_type=rate_type_ids['Day'], contact_phone="55555555555", expires_in_days=-1))
    db.session.add(Account("admin", "[email protected]", "Pass1234"))
    db.session.commit()

    def tearDown(self):
        """
        Remove/delete the database and the relevant connections
!
        :return: no return
        """
        db.session.remove()
        db.drop_all()

def testdb():
  #if db.session.query("1").from_statement("SELECT 1").all():
  #  return 'It works.'
  #else:
  #  return 'Something is broken.'   
  db.drop_all()
  db.create_all()
  return "i got here"

    def tearDown(self):
        db.session.remove()
        db.drop_all()

        os.close(self.db_fd)
        os.unlink(self.dbname)

        if self._ctx is not None:
            self._ctx.pop()

    def tearDown(self):
        info("Drop tables.")

        # Otherwise hangs at drop_all.
        # More info: http://stackoverflow.com/questions/24289808/
        db.session.commit()

        db.drop_all()
        info("Tables dropped.")

def create_db():
    db.drop_all()
    # db.configure_mappers()
    db.create_all()

    create_characters()
    create_houses()
    create_books()

    db.session.commit()

 def tearDown(self):
     """
     Ensures that the database is emptied for next unit test
     """
     db.session.remove()
     db.drop_all()
     try:
         user = User.query.all()
     except Exception as e:
         assert e

    def tearDown(self):
        log.debug("Drop tables.")

        # Otherwise hangs at drop_all.
        # More info: http://stackoverflow.com/questions/24289808/
        db.session.commit()

        with app.app_context():
            db.drop_all()
        log.debug("Tables dropped.")

    def setUpClass(cls):
        cls.app = app
        cls.app.config['SQLALCHEMY_DATABASE_URI'] = 'postgres://flask:[email protected]:5432/test_factory_boy'
        cls.app.config['SQLALCHEMY_ECHO'] = True
        db.app = cls.app

        db.init_app(cls.app)
        cls._ctx = cls.app.test_request_context()
        cls._ctx.push()
        db.drop_all()
        db.create_all()

def createdb(testdata=False):
    """Initializes the database"""
    app = create_app()
    with app.app_context():
        db.drop_all()
        db.create_all()
        if testdata:
            user = User(username='john', password='oldman')
            db.session.add(user)

            db.session.commit()

def db(app, request):
    """Function-wide test database."""
    _db.create_engine(
        app.config['SQLALCHEMY_DATABASE_URI'], convert_unicode=True
    )
    _db.drop_all()
    _db.create_all()

    yield _db

    # Teardown
    _db.drop_all()

def init_all():
    db.drop_all()
    db.create_all()
    init_descriptions(current_app.file_root)
    init_abilities()
    init_races()
    init_skills()
    init_classes()
    init_messages()
    init_characters()
    init_handlers()
    init_items()
    init_knowledge()
    init_alignments()

def reload_all():
    db.drop_all()
    db.create_all()

    with open(DATA_PATH) as f:
        data = loads(f.read())

    ability_map = {}
    for ability_data in data['abilities']:
        ability = Ability(ability_data['name'], ability_data['abbreviation'], ability_data['description'])
        ability_map[ability_data['id']] = ability
        db.session.add(ability)

    skill_map = {}
    for skill_data in data['skills']:
        ability = ability_map[skill_data['ability_id']]
        skill = Skill(skill_data['name'], ability, skill_data['description'])
        skill_map[skill_data['id']] = skill
        db.session.add(skill)

    alignment_map = {}
    for alignment_data in data['alignments']:
        alignment = Alignment(alignment_data['name'], alignment_data['description'])
        alignment_map[alignment_data['id']] = alignment
        db.session.add(alignment)

    race_map = {}
    for race_data in data['races']:
        race = Race(race_data['name'], race_data['description'])
        race_map[race_data['id']] = race
        db.session.add(race)

    class_map = {}
    for class_data in data['classes']:
        character_class = CharacterClass(class_data['name'], class_data['description'])
        class_map[class_data['id']] = character_class
        db.session.add(character_class)

    item_type_map = {}
    for item_type_data in data['item_types']:
        item_type_id = item_type_data['id']
        del item_type_data['id']
        item_type = ItemType(**item_type_data)
        item_type_map[item_type_id] = item_type
        db.session.add(item_type)

    db.session.commit()
    print data
    return data