SQLAlchemy with Flask
Basic knowledge of how SQLAlchemy works in Flask.
The system must have python:
– how to install python on Mac OS
– how to install python on Ubuntu
A virtual environment must also be created for the pip command to work. If it doesn’t exist yet:
We go inside the python virtual environment:
Let’s update pip:
pip install –upgrade pip
Installation:
pip install Flask-SQLAlchemy
pip install Flask-Migrate
Basic syntax in file __init__.py:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
def create_app():
app = Flask(__name__)
return app
app = create_app()
db = SQLAlchemy(app)
migrate = Migrate(app, db)
