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from werkzeug import url_decode
from flask import Flask, render_template, request, redirect, url_for, flash
class MethodRewriteMiddleware(object):
"""Middleware for HTTP method rewriting.
def __init__(self, app): = app
def __call__(self, environ, start_response):
if 'METHOD_OVERRIDE' in environ.get('QUERY_STRING', ''):
args = url_decode(environ['QUERY_STRING'])
method = args.get('__METHOD_OVERRIDE__')
if method:
method = method.encode('ascii', 'replace')
environ['REQUEST_METHOD'] = method
return, start_response)
class Book(object):
"""A Fake model"""
def __init__(self, id = None, name = None): = id = name
app = Flask(__name__)
app.config['DEBUG'] = True
app.config['SECRET_KEY'] = 'secret'
app.wsgi_app = MethodRewriteMiddleware(app.wsgi_app)
def list_books():
"""GET /books
Lists all books"""
books = [ Book(id=1, name=u'Lord of the rings'), Book(id=2, name=u'Dive into Python') ] # Your query here ;)
return render_template('list_books.html', books=books)
def show_book(id):
"""GET /books/<id>
Get a book by its id"""
book = Book(id=id, name=u'My great book') # Your query here ;)
return render_template('show_book.html', book=book)
def new_book():
"""GET /books/new
The form for a new book"""
return render_template('new_book.html')
@app.route('/books', methods=['POST',])
def create_book():
"""POST /books
Receives a book data and saves it"""
name = request.form['name']
book = Book(id=2, name=name) # Save it
flash('Book %s sucessful saved!' %
return redirect(url_for('show_book', id=2))
def edit_book(id):
"""GET /books/<id>/edit
Form for editing a book"""
book = Book(id=id, name=u'Something crazy') # Your query
return render_template('edit_book.html', book=book)
@app.route('/books/<id>', methods=['PUT'])
def update_book(id):
"""PUT /books/<id>
Updates a book"""
book = Book(id=id, name=u"I don't know") # Your query = request.form['name'] # Save it
flash('Book %s updated!' %
return redirect(url_for('show_book',
@app.route('/books/<id>', methods=['DELETE'])
def delete_book(id):
"""DELETE /books/<id>
Deletes a books"""
book = Book(id=id, name=u"My book to be deleted") # Your query
flash('Book %s deleted!' %
return redirect(url_for('list_books'))
if __name__ == '__main__':