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| from flask import Flask, request, render_template, session
import pickle
import uuid
import os
app = Flask(__name__)
app.config['SECRET_KEY'] = os.urandom(2).hex()
class Note(object):
def __init__(self, name, content):
self._name = name
self._content = content
@property
def name(self):
return self._name
@property
def content(self):
return self._content
@app.route('/')
def index():
return render_template('index.html')
@app.route('/<path:note_id>', methods=['GET'])
def view_note(note_id):
notes = session.get('notes')
if not notes:
return render_template('note.html', msg='You have no notes')
note_raw = notes.get(note_id)
if not note_raw:
return render_template('note.html', msg='This note does not exist')
note = pickle.loads(note_raw)
return render_template('note.html', note_id=note_id, note_name=note.name, note_content=note.content)
@app.route('/add_note', methods=['POST'])
def add_note():
note_name = request.form.get('note_name')
note_content = request.form.get('note_content')
if note_name == '' or note_content == '':
return render_template('index.html', status='add_failed', msg='note name or content is empty')
note_id = str(uuid.uuid4())
note = Note(note_name, note_content)
if not session.get('notes'):
session['notes'] = {}
notes = session['notes']
notes[note_id] = pickle.dumps(note)
session['notes'] = notes
return render_template('index.html', status='add_success', note_id=note_id)
@app.route('/delete_note', methods=['POST'])
def delete_note():
note_id = request.form.get('note_id')
if not note_id:
return render_template('index.html')
notes = session.get('notes')
if not notes:
return render_template('index.html', status='delete_failed', msg='You have no notes')
if not notes.get(note_id):
return render_template('index.html', status='delete_failed', msg='This note does not exist')
del notes[note_id]
session['notes'] = notes
return render_template('index.html', status='delete_success')
if __name__ == '__main__':
app.run(host='0.0.0.0', port=8000, debug=False)
|
