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app.py
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app.py
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from flask import Flask, render_template, request, redirect
from flask_sqlalchemy import SQLAlchemy
from datetime import datetime
app = Flask(__name__)
# database settings
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
# initializes the db
db = SQLAlchemy(app)
# Creation of models
class Todo(db.Model):
"""Represents a Todo item.
"""
id = db.Column(db.Integer, primary_key=True)
content = db.Column(db.String(200), nullable=False)
date_created = db.Column(db.DateTime, default=datetime.utcnow)
completed = db.Column(db.Boolean, default=False, nullable=False)
# each time that this function gets called it's going to return:
def __repr__(self):
return '<Task %t>' % self.id
# define routes
@app.route('/', methods=['POST', 'GET'])
def index():
# si se recibe una solicitud post (al usar un SUBMIT por ejemplo)
# se ejecutara el bloque del if, de lo contrario (al ser GET)
# se ejecutara el Else que retorna la pagina inicial
if request.method == 'POST':
task_content = request.form['content']
new_task = Todo(content=task_content)
# se guardara esta nueva info en la db
try:
if new_task.content == "":
return 'ingrese un mensaje. <a href="\">Regresar</a> '
else:
db.session.add(new_task)
db.session.commit()
return redirect('/')
except:
return 'Hubo un error al intentar agregar una tarea'
else:
tasks = Todo.query.order_by(Todo.date_created).all()
return render_template("index.html", tasks=tasks)
# return "estas en el index"
@app.route('/delete/<int:id>')
def delete(id):
# eliminar
task_to_delete = Todo.query.get_or_404(id)
try:
db.session.delete(task_to_delete)
db.session.commit()
return redirect('/')
except:
return('No se pudo eliminar tarea')
@app.route('/update/<int:id>', methods=['GET', 'POST'])
def update(id):
# actualizar
task = Todo.query.get_or_404(id)
if request.method == 'POST':
task.content = request.form['content']
try:
db.session.commit()
return redirect('/')
except:
return 'No se pudo actualizar su tarea'
else:
return render_template('update.html', task=task)
@app.route('/complete/<int:id>', methods=['POST'])
def complete(id):
"""Marks the task as completed"""
task = Todo.query.get_or_404(id)
if request.method == 'POST':
task.completed = 'completed' in request.form
try:
db.session.commit()
return redirect('/')
except:
return 'No se pudo actualizar su tarea'
else:
return render_template('update.html', task=task)
# server stuff
if __name__ == "__main__":
db.create_all()
app.run(debug=True)