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todos.py

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 python3

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todos.py

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# coding: utf-8

from leancloud import Object

from leancloud import Query

from leancloud import LeanCloudError

from flask import Blueprint

from flask import request

from flask import redirect

from flask import url_for

from flask import render_template

class Todo(Object):

pass

todos_view = Blueprint('todos', __name__)

@todos_view.route('')

def show():

try:

todos = Query(Todo).descending('createdAt').find()

except LeanCloudError as e:

if e.code == 101: # 服务端对应的 Class 还没创建

todos = []

else:

raise e

return render_template('todos.html', todos=todos)

@todos_view.route('', methods=['POST'])

def add():

content = request.form['content']

todo = Todo(content=content)

try:

todo.save()

except LeanCloudError as e:

return e.error, 502

return redirect(url_for('todos.show'))