python 3.x - flask handle form with radio buttons

Question

My index.html looks like this

<form name="myForm" action="" method="post" onsubmit="">
<p>
<input type="radio" name="options" id="option1"> Option1 <br>
<input type="radio" name="options" id="option2"> Option2 <br>
<input type="radio" name="options" id="option3"> Option3 <br>
</p>
<p><input type=submit value=Next></p>
</form>

I need to get the selected button. But since they all have the same name I cannot do it by writing request.form['option']. If I make their names different, users can make multiple selections.

Isn't there a way to get a button's state by it's id ? If no, what's the simplest way to handle this form ?

Answer 1

You should add the value attribute to each of your input fields:

<input type="radio" name="options" id="option1" value="option1"> Option1 </input><br>
<input type="radio" name="options" id="option2" value="option2"> Option2 </input><br>
<input type="radio" name="options" id="option3" value="option3"> Option3 </input><br>

and in your flask route you can read the selected option:

option = request.form['options']

and you'll get the value of the selected radio button.