Hi there I'm creating a Flask web app and now I have to create more cruds, so I decided to modularize the app using Blueprints.
I have a Login function on main.py that allows me to enter the app interface:
app.route('/', methods=['GET', 'POST'])
def login():
# Output message if something goes wrong...
msg = ''
# Check if "username" and "password" POST requests exist (user submitted form)
if request.method == 'POST' and 'username' in request.form and 'password' in request.form:
# Create variables for easy access
username = request.form['username']
password = request.form['password']
# Check if account exists using MySQL
cursor = mysql.connection.cursor(MySQLdb.cursors.DictCursor)
cursor.execute(
'SELECT * FROM accounts WHERE username = %s AND password = %s', (username, password,))
# Fetch one record and return result
account = cursor.fetchone()
# If account exists in accounts table in out database
if account:
# Create session data, we can access this data in other routes
session['loggedin'] = True
session['id'] = account['id']
session['username'] = account['username']
# Redirect to home page
return redirect(url_for('client.home'))
else:
# Account doesnt exist or username/password incorrect
msg = 'Incorrect username/password!'
# Show the login form with message (if any)
return render_template('index.html', msg=msg)
It redirects to this Blueprint:
from flask import Blueprint, render_template
from flask import render_template, request, redirect, url_for, session, flash
from flask_mysqldb import MySQL
import MySQLdb.cursors
import re
from extension import mysql
client = Blueprint('client', __name__,
static_folder="../static", template_folder="../templates")
@client.route('/')
def home():
if 'loggedin' in session:
cur = mysql.connection.cursor()
cur.execute('SELECT * FROM cliente')
data = cur.fetchall()
# User is loggedin show them the home page
return render_template('home.html', username=session['username'], cliente=data)
# User is not loggedin redirect to login page
return redirect(url_for('login'))
It works just fine, but with a condition. On my main.py I also have this:
@app.route('/home')
def home():
pass
And this is the problem, I don't know why I should keep this route on my main.py because if I delete it my app crashes and throws me this error:
werkzeug.routing.BuildError werkzeug.routing.BuildError: Could not build url for endpoint 'home'. Did you mean 'client.home' instead?
I have no idea why does this happens. Why should I keep this route? or What I'm doing wrong? Could you please give me a hand? I've trying to change the redirect to using multiple routes, but if I delete that /home route.. my app crashes anyway.
