old_contents: # -*- coding: utf-8 -*-
  
  # Copyright 2014 flask-mongoalchemy authors. All rights reserved.
  # Use of this source code is governed by a BSD-style
  # license that can be found in the LICENSE file.
  
  from flask import Flask, request
  from flask.ext.mongoalchemy import MongoAlchemy
  app = Flask(__name__)
  app.config['DEBUG'] = True
  app.config['MONGOALCHEMY_DATABASE'] = 'library'
  db = MongoAlchemy(app)
  
  class Author(db.Document):
      name = db.StringField()
  
  class Book(db.Document):
      title = db.StringField()
      author = db.DocumentField(Author)
      year = db.IntField()
  
  @app.route('/author/new')
  def new_author():
      """Creates a new author by a giving name (via GET parameter)
  
      e.g.: GET /author/new?name=Francisco creates a author named Francisco
      """
      author = Author(name=request.args.get('name', ''))
      author.save()
      return 'Saved :)'
  
  @app.route('/authors/')
  def list_authors():
      """List all authors.
  
      e.g.: GET /authors"""
      authors = Author.query.all()
      content = '<p>Authors:</p>'
      for author in authors:
          content += '<p>%s</p>' % author.name
      return content
  
  if __name__ == '__main__':
      app.run()
  
new_contents: # -*- coding: utf-8 -*-
  
  # Copyright 2014 flask-mongoalchemy authors. All rights reserved.
  # Use of this source code is governed by a BSD-style
  # license that can be found in the LICENSE file.
  
  from flask import Flask, request
  from flask.ext.mongoalchemy import MongoAlchemy
  app = Flask(__name__)
  app.config['DEBUG'] = True
  app.config['MONGOALCHEMY_DATABASE'] = 'library'
  db = MongoAlchemy(app)
  
  
  class Author(db.Document):
      name = db.StringField()
  
  
  class Book(db.Document):
      title = db.StringField()
      author = db.DocumentField(Author)
      year = db.IntField()
  
  
  @app.route('/author/new')
  def new_author():
      """Creates a new author by a giving name (via GET parameter)
  
      e.g.: GET /author/new?name=Francisco creates a author named Francisco
      """
      author = Author(name=request.args.get('name', ''))
      author.save()
      return 'Saved :)'
  
  
  @app.route('/authors/')
  def list_authors():
      """List all authors.
  
      e.g.: GET /authors"""
      authors = Author.query.all()
      content = '<p>Authors:</p>'
      for author in authors:
          content += '<p>%s</p>' % author.name
      return content
  
  if __name__ == '__main__':
      app.run()
  
subject: fix flake8 issues