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ViewsHow to send data in Flask to another page?
I'm using Flask to make a tickets booking app. But for now I'm little confused on how to send data from one page to another page, like this snippet of code:
@app.route('/index', methods = ['GET', 'POST'])
def index():
if request.method == 'GET':
date = request.form['date']
return redirect(url_for('main.booking', date=date))
return render_template('main/index.html')
@app.route('/booking')
def booking():
return render_template('main/booking.html')
The date variable is a request from a form, and for now I want to send the date data to booking function. What is term for that purpose..?
·
Santiago Trujillo
2 answers
Answer question0
Passing data is possible for get request from one route to another.
You are almost there to get the submitted date value in booking route.
app.py:
from flask import Flask, render_template, request, jsonify, url_for, redirect
app = Flask(__name__)
@app.route('/', methods = ['GET', 'POST'])
def index():
if request.method == 'POST':
date = request.form.get('date')
return redirect(url_for('booking', date=date))
return render_template('main/index.html')
@app.route('/booking')
def booking():
date = request.args.get('date', None)
return render_template('main/booking.html', date=date)
if __name__ == '__main__':
app.run(debug=True)
main/index.html:
<html>
<head></head>
<body>
<h3>Home page</h3>
<form action="/" method="post">
<label for="date">Date: </label>
<input type="date" id="date" name="date">
<input type="submit" value="Submit">
</form>
</body>
</html>
main/booking.html:
<html>
<head></head>
<body>
<h3>Booking page</h3>
<p>
Seleted date: {{ date }}
</p>
</body>
</html>
Output:
Home route with a form to submit the date
Getting the date in booking route
Disadvantages:
- The values (e.g.:
date) are passed as URL parameters from one route to another. - Anyone with a get request can access the second part (e.g.
bookingroute).
Alternatives:
- Use session storage as @VillageMonkey suggested.
- Use Ajax to facilitate multi part forms.
·
Santiago Trujillo
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0
You can also use flask session to send data from one page to another page.
from flask import Flask, render_template, request, jsonify, url_for, redirect,
session
app = Flask(__name__)
@app.route('/', methods = ['GET', 'POST'])
def index():
if request.method == 'POST':
date = request.form.get('date')
session["date"] = date
return redirect(url_for('booking', date=date))
return render_template('main/index.html')
@app.route('/booking')
def booking():
date = session.get("date")
return render_template('main/booking.html', date=date)
if __name__ == '__main__':
app.run(debug=True)
·
Santiago Trujillo
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