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models.py
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models.py
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from sqlalchemy import Column, String, Integer, DateTime, create_engine
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
from datetime import datetime
import json
import os
database_path = os.environ['DATABASE_URL']
db = SQLAlchemy()
'''
setup_db(app)
binds a flask application and a SQLAlchemy service
'''
def setup_db(app, database_path=database_path):
app.config["SQLALCHEMY_DATABASE_URI"] = database_path
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
db.app = app
db.init_app(app)
# db.create_all()
'''
db_drop_and_create_all()
drops the database tables and starts fresh
can be used to initialize a clean database
!!NOTE you can change the database_filename variable to have multiple verisons of a database
'''
def db_drop_and_create_all():
db.drop_all()
db.create_all()
'''
Movie
'''
class Movie(db.Model):
__tablename__ = 'movies'
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String, nullable=False)
release_date = db.Column(db.DateTime(), default=datetime.utcnow, nullable=False)
def __init__(self, title, release_date):
self.title = title
self.release_date = release_date
def insert(self):
db.session.add(self)
db.session.commit()
def update(self):
db.session.commit()
def delete(self):
db.session.delete(self)
db.session.commit()
def format(self):
return {
'id': self.id,
'title': self.title,
'release_date': self.release_date,
}
'''
Actor
'''
class Actor(db.Model):
__tablename__ = 'actors'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String, nullable=False)
gender = db.Column(db.String, nullable=False)
age = db.Column(db.Integer, nullable=False)
def __init__(self, name, gender, age):
self.name = name
self.gender = gender
self.age = age
def insert(self):
db.session.add(self)
db.session.commit()
def update(self):
db.session.commit()
def delete(self):
db.session.delete(self)
db.session.commit()
def format(self):
return {
'id': self.id,
'name': self.name,
'gender': self.gender,
'age': self.age,
}