Random User Query Generator with Flask-SQLAlchemy

This function uses the Flask-SQLAlchemy library to query users from the database. It generates a random query by randomly choosing a query method (such as all, filter, first, get, etc.) and a field to filter by.

Technology Stack : Flask-SQLAlchemy, SQLAlchemy

Code Type : Database query

Code Difficulty : Intermediate

                
                    
from flask_sqlalchemy import SQLAlchemy
from random import choice

db = SQLAlchemy()

def random_user_query():
    """
    This function generates a random query to fetch users from the database using Flask-SQLAlchemy.
    """
    # Choose a random method to filter users
    filter_method = choice(['all', 'filter', 'first', 'get', 'all_by'])

    # Choose a random field to filter by
    field = choice(['id', 'username', 'email', 'age'])

    # Generate the query based on the chosen method and field
    if filter_method == 'all':
        query = db.session.query(User)
    elif filter_method == 'filter':
        query = db.session.query(User).filter(getattr(User, field) == 'value')
    elif filter_method == 'first':
        query = db.session.query(User).order_by(User.id).first()
    elif filter_method == 'get':
        query = db.session.query(User).get(1)
    elif filter_method == 'all_by':
        query = db.session.query(User).all_by(field, 'value')

    return query