python - Access data from existing table using Flask-Alchemy -

i know mysql , writing queries easy there time when becomes complicated , decided choose orm (sqlalchemy). using flask framework , using flask-sqlalchemy. documentation clear on how build model , insert data , how access model there in database. have database name collection has image table inside it.

model.py

from flask import flask flask_sqlalchemy import sqlalchemy sqlalchemy import table, column, integer, string, date, float import config # db class app = flask(__name__) app.config['sqlalchemy_database_uri'] =  config.db_uri db = sqlalchemy(app) 

config.py

dbhost = 'localhost' dbuser = 'root' dbpass = 'pass' dbname = 'collection' db_uri = 'mysql://' + dbuser + ':' + dbpass + '@' + dbhost + '/' +dbname 

now access records:

model.py

data = db.session.execute("select * image;") r in data:     print r 

it print row. writing sql queries directly only. how access existing table data using flask-sqlalchemy?