class MyForm(Form):
	name = StringField(u'Автор')
	post = StringField(u'Пост')
	date = DateField(u'Дата написания')

@app.route('/submit', methods=('POST', 'GET'))
def submit():
	form = MyForm()
	if validate_on_submit():
		return redirect('/')
	return render_template('submit.html', form=form)

class User(Base):
	__tablename__ = 'users'
	id = Column(Integer, primary_key=True)
	name = Column(Unicode(50))
	post = relationship("Post", backref='users')
	def __init__(self, name):
		self.name = name
class Post(Base):
	__tablename__ = 'posts'
	id = Column(Integer, primary_key=True)
	title = Column(Unicode)
	date = Column(Date)
	user_id = Column(Integer, ForeignKey('users.id'))
	def __init__(self, title):
		self.title = title

return render_template('submit.html', form=form)

return redirect('/')

class wtforms.fields.DateField(default field arguments, format='%Y-%m-%d')

__init__(label=None, validators=None, filters=(), description=u'', id=None, default=None, widget=None, _form=None, _name=None, _prefix=u'', _translations=None, _meta=None)