How can I access the form submit button value in Django?

One thing to keep in mind to prevent confusion. The name of the submit button will not show if there is only a single button in the form.

#template.html
<form action="..." method="post">
<input type="submit" name = "first_button" value="Add">
</form>

#view.py
...
'first_button' in request.POST  #False

---

#template.html
<form action="..." method="post">
<input type="submit" name = "first_button" value="Add">
<input type="submit" name = "second_button" value="Remove">
</form>

#view.py
...
'first_button' in request.POST  #True if you clicked on that button

Submit is an HTML Form structure... You must use name attribute of form objects as follows... In your template:

<form>
...
<input type="submit" name="list" value="List Objects" />
</form>
<form>
...
<input type="submit" name="do-something-else" value="Do Something Else" />
</form>

In your view:

if 'list' in request.POST:
    # do some listing...
elif 'do-something-else' in request.POST:
    # do something else