incomplete appengine example

gistfile1.txt

import flask_admin as admin

from flask import Flask
from flask_admin.contrib import appengine
from google.appengine.ext import ndb

# Create application
app = Flask(__name__)

# Create dummy secrey key so we can use sessions
app.config['SECRET_KEY'] = '123456790'

# Create in-memory database
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///sample_db_2.sqlite'
app.config['SQLALCHEMY_ECHO'] = True
db = SQLAlchemy(app)


# Flask views
@app.route('/')
def index():
    return '<a href="/admin/">Click me to get to Admin!</a>'


class Car(ndb.Model):
    __tablename__ = 'cars'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    desc = ndb.StringProperty()

    def __unicode__(self):
        return self.desc


class Tyre(ndb.Model):
    __tablename__ = 'tyres'
    car_id = db.Column(db.Integer, db.ForeignKey('cars.id'), primary_key=True)
    tyre_id = db.Column(db.Integer, primary_key=True)
    car = db.relationship('Car', backref='tyres')
    desc = ndb.StringProperty()


class CarAdmin(appengine.ModelView):
    column_display_pk = True
    can_view_details = True
    form_columns = ['id', 'desc']


class TyreAdmin(appengine.ModelView):
    column_display_pk = True
    form_columns = ['car', 'tyre_id', 'desc']


# Create admin
admin = admin.Admin(app, name='Example: SQLAlchemy2', template_mode='bootstrap3')
admin.add_view(CarAdmin(Car, db.session))
admin.add_view(TyreAdmin(Tyre, db.session))

if __name__ == '__main__':

    # Create DB
    db.create_all()

    # Start app
    app.run(debug=True)