How to get checkbox values in django application

Question

I am trying to use a check box control in a simple django application. Code Logic seems to be fine, But I am getting an empty fruit list ([None, None]). I don't know why it's not working, Can anybody point out the mistake. Thanks in advance

index.html

<div class="form-check">
<input class="form-check-input" type="checkbox" value="Apple" id="apple">
<label class="form-check-label" for="apple">Apple</label>
</div>
<div class="form-check">
<input class="form-check-input" type="checkbox" value="Mango" id="mango">
<label class="form-check-label" for="mango">Mango</label>
</div>

view.py

if request.method == 'POST':
    fruit = []
    fruit.append(request.POST.get('apple'))
    fruit.append(request.POST.get('mango'))

I dont think you need to use a POST request as this normally requires a CSRF token.. use GET instead unless it is sensitive data — johnashu
– johnashu, Commented Feb 11, 2018 at 19:53

Vitor Freitas · Accepted Answer · 2018-02-11 20:06:50Z

12

As Daniel mentioned, you have to add a name attribute to form elements, so they are submitted to the server.

index.html

<form method="post">
  {% csrf_token %}
  <div class="form-check">
    <input class="form-check-input" type="checkbox" value="Apple" id="apple" name="fruits">
    <label class="form-check-label" for="apple">Apple</label>
  </div>
  <div class="form-check">
    <input class="form-check-input" type="checkbox" value="Mango" id="mango" name="fruits">
    <label class="form-check-label" for="mango">Mango</label>
  </div>
  <button type="submit">Submit</button>
</form>

That way, you can get a list of fruits in your view:

views.py

if request.method == 'POST':
    fruits = request.POST.getlist('fruits')

The fruits variable would be a list of check inputs. E.g.:

['Apple', 'Mango']

answered Feb 11, 2018 at 20:06

Vitor Freitas

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2 Comments

caram Over a year ago

How to handle when the checkbox has also the checked attribute set? It seems in that case the value of fruits will be: ['on', 'on'] and there is no indication which fruits were selected.

cikatomo Over a year ago

@caram did you find solution?

Daniel Roseman · Accepted Answer · 2018-02-11 19:54:17Z

1

input elements need a name attribute, otherwise the browser does not send any data.

answered Feb 11, 2018 at 19:54

Daniel Roseman

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2 Comments

Olivia Brown Over a year ago

But bootstrap controls have id tag instead of name

WebDevBooster Over a year ago

@OliviaBrown You can add the name attribute, no problem. The ids are primarily for the labels.

Misiuna · Accepted Answer · 2024-04-30 16:22:51Z

0

I found a solution to this problem within the post How to get POST request values in Django.

the result of request.POST.getlist('fruits') in your views

will return ['on', 'on']

To get the name of the selected fruits, target the value="name" from your input tag by using request.POST.getlist('student', '')

answered Apr 30, 2024 at 16:22

Misiuna

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