Py | Flask

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2011 The Octopus Apps Inc.
# Licensed under the Apache License, Version 2.0 (the "License")
#
# Author: Alejandro M. Bernardis
# Email: alejandro.m.bernardis at gmail.com
# Created: May 2, 2011 4:07:52 PM
#
from flask import Flask, request, redirect, url_for, jsonify
 
import modules
from .config import Production
from .extensions import db
 
#: -- define --
 
__all__ = ['create_app']
 
DEFAULT_APP_NAME = __name__
 
DEFAULT_APP_MODULES = (
  (modules.mod_frontend, ''),
  (modules.mod_error, '/error'),
)
 
#: -- application --
 
def create_app(name=None, config=None, modules=None):
 
    if not name:
        name = DEFAULT_APP_NAME
 
    if not config:
        config = Production()
 
    if not modules:
        modules = DEFAULT_APP_MODULES
 
    #: application
 
    app = Flask(name)
 
    #: config
 
    app.config.from_object(config)
    app.config.from_envvar('APP_CONFIG', silent=True)
 
    #: extensions
 
    db.init_app(app)
 
    #: errors
 
    @app.errorhandler(403)
    @app.errorhandler(404)
    @app.errorhandler(500)
    def error_manager(error):
        if request.is_xhr:
            return jsonify(error=error)
        url = 'error.error_%s' % error.__str__()[0:3]
        return redirect(url_for(url))
 
    #: modules
 
    for module, url_prefix in modules:
        app.register_module(module, url_prefix=url_prefix)
 
    return app