Freaks City

Account Service Layer (services/account_service.py) The AccountService class provides static and class methods for core user lifecycle management: User Retrieval: load_user(user_id) fetches a user by ID. It raises an exception if the account is banned or closed. If the user has a tenant, it sets the active tenant and updates the last active ti ...

Server Environment Setup Host: 4-core 8GB CentOS 7.9 virtual machine (verify with cat /etc/redhat-release) Dependencies: Anaconda, Python 3.8, uWSGI, Nginx Python 3.8 Compilation and Installation Update Yum Repositories First back up default CentOS base repo: cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak Replace wi ...

The SMS sending functionality is refactored using the Singleton pattern to ensure the REST SDK is initialized only once. The sms.py module wraps the cloud communication SDK: # -*- coding: utf-8 -*- import logging from CCPRestSDK import REST # Credentials and configuration ACCOUNT_SID = '8aaf07085f9eb021015fb58c56d906e8' ACCOUNT_TOKEN = 'e21ca ...

Environment Installation Install the required dependencies via pip: pip install flask-sqlalchemy pip install pymysql Basic Usage Minimal Working Application To get started with Flask-SQLAlchemy, you only need to configure your Flask applicaiton instence and initialize the SQLAlchemy instance with it. A common project structure splits configura ...

Comparing Flask, Django, and Tornado Django is a full-stack framework packed with built-in components including ORM, Forms, ModelForms, caching, sessions, middleware, signals, and more. Flask is lightweight and minimal, offering core functionality without bundled components but with extensive third-party extension support. Its routing uses deco ...

Database Models Create models.py in the ihome driectory: # -*- coding:utf-8 -*- from datetime import datetime from . import db class BaseModel(object): """Base model class providing created_at and updated_at timestamps""" created_at = db.Column(db.DateTime, default=datetime.now) updated_at = db.Colu ...

To use an ORM in Flask, install the required packages: pip3 install sqlalchemy flask-sqlalchemy Create a MySQL database for your application: CREATE DATABASE flask DEFAULT CHARSET utf8 COLLATE utf8_general_ci; Configure the database URI in your Flask app: app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://root:123456@localhost:3306/flask' Init ...

Install Alembic with pip: pip install alembic Setup Process Initialize repository: alembic init migrations Create ORM models (example): from sqlalchemy import Column, Integer, String, create_engine, Text from sqlalchemy.orm import sessionmaker from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() class Customer( ...

Introduction to Dify Dify is an open-source platform for developing applications powered by Large Language Models (LLMs). It combines Backend-as-a-Service (BaaS) principles with LLMOps concepts, enabling developers to quickly build production-ready generative AI applications. The platform is designed to be accessible to both technical and non-t ...

When Flask receives a request from a client, the framework needs to make the request object accessible to view functions so they can process the incoming data. One approach is to explicitly pass the request object as a parameter to your view functions: from flask import Flask, request app = Flask(__name__) @app.route('/') def handle_index(req ...