Flask-SQLAlchemy-SQL操作

Question

Am using Flask with Flask-SQLAlchemy, for the SQL operations, i can able to successfully insert a record into mysql database from the

Views.py

from models import *
user= adduser('test')
db.session.add(user)
db.session.commit()

models.py

from flask_sqlalchemy import SQLAlchemy
from app import app
db = SQLAlchemy(app)

class adduser(db.Model):
__tablename__ = 'adduser'
id = db.Column('user_id', db.Integer, primary_key=True)
UserName = db.Column(db.String(16))

def __init__(self, UserName):
    self.UserName = UserName

How to do the same operation in a separate Python file (suppose i want to handle the insert operation in a file other than views.py, say insertuser.py)

Answer 1

Create your project as a package with ___init__.py . Then you just need to initialize the "app", "db", variables once and can re-use. Something like:

myproject/
    __init__.py
    models.py
    views.py
    insertuser.py

Now, in your __init__.py file, put the initialization code:

app = Flask(__name__)
db = SQLAlchemy(app)

Then just import these in the insertuser.py file:

from myproject import app, db
..insert code goes here...