# in models
class Template(Base):
    __tablename__ = 'template'
    id = Column(Integer, primary_key=True)
    description = Column(String(50))
    contenu = Column(Text)

    def __init__(self, description=None, contenu=None):
        self.description = description
        self.contenu = contenu

    def __repr__(self):
        return '<Template %r>' % (self.description)

class Page(Base):
    __tablename__ = 'page'
    id = Column(Integer, primary_key=True)
    url = Column(String(50), unique=True)
    titre = Column(String(100))
    idTemplate = Column(Integer, ForeignKey('template.id'))

    def __init__(self, url=None, titre=None, idTemplate=0):
        self.url = url
        self.titre = titre
        self.contenu = contenu

    def __repr__(self):
        return '<Page %r>' % (self.titre)


## In My Views
from dynamiqueweb.models import Page, Template
retourPage = Page.query.filter_by(url='/').join(Template).first()

# For Exemple i want to acces to variable contenu in my Template class and to my titre variable in Page