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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__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.db'
db = SQLAlchemy(app)
class Model(db.Model):
id = db.Column(db.Integer, primary_key=True)
content = db.Column(db.String(200), nullable=False)
dateCreated = db.Column(db.DateTime, default=datetime.utcnow)
def __repr__(self):
retString = 'Task #{}'.format(self.id)
return retString
@app.route('/', methods=['POST', 'GET'])
def index():
# If the submit button on the form is pressed
if request.method == 'POST':
# Pass in the id of the input to extract
taskContent = request.form['content']
# Create an object of the table having content as the extracted content above
newTask = Model(content=taskContent)
# Pushing the new task created to the database
try:
# Look familiar? This code pushes data to our database
db.session.add(newTask)
db.session.commit()
# Remember to import redirect back to the index page
return redirect('/')
except:
# This should never fail ideally
return 'There was an issue adding your task to the database.'
else:
# This looks at all the database contents and returns them in the order of their creation
tasks = Model.query.order_by(Model.dateCreated).all()
# tasks = Model.query.order_by(Model.dateCreated).first()
# Passing the tasks variable into the render_template() function
return render_template('index.html', tasks=tasks)
# By default, the method list consists of 'GET'
@app.route('/delete/<int:id>')
def delete(id):
taskToDelete = Model.query.get_or_404(id)
try:
db.session.delete(taskToDelete)
db.session.commit()
return redirect('/')
except:
return 'There was an issue deleting that task.'
# Functionality to update tasks
@app.route('/update/<int:id>', methods=['GET', 'POST'])
def update(id):
taskToUpdate = Model.query.get_or_404(id)
if request.method == 'POST':
taskToUpdate.content = request.form['content']
try:
db.session.commit()
return redirect('/')
except:
return 'There was an issue updating that task.'
else:
return render_template('update.html', task=taskToUpdate)
if __name__ == '__main__':
app.run(debug=True)