How to get selected radio button value to pass to UpdateView in Django? - radio-button

Question

I want to get selected value by radio button and pass it to the update view but I couldn't find a way. Both views are class based.
Exception Value:
Reverse for 'update-author' with no arguments not found. 1 pattern(s) tried:
ListView :
class Dashboard(ListView):
model = Author
template_name='catalog/dashboard.html'
def get_context_data(self, **kwargs):
context = super(EditDashboard, self).get_context_data(**kwargs)
context["authors"] =Author.objects.all()
context["publishers"] =Publisher.objects.all()
context["genres"] =Genre.objects.all()
return context
UpdateView:
class UpdateAuthor(UpdateView):
model = Author
fields = '__all__'
template_name='catalog/updateauthor.html'
context_object_name = 'author'
Model:
class Author(models.Model):
first_name = models.CharField(max_length=200, blank=False)
last_name = models.CharField(max_length=200, blank=False)
date_of_birth = models.DateField(null=True, blank =True)
date_of_death = models.DateField(null=True, blank =True)
class Meta:
ordering = ['first_name', 'last_name']
def __str__(self):
return f' {self.first_name} {self.last_name}'
Form in template :
<form action="{% url 'update-author' ????? %}" method="post">
{% csrf_token %}
{% for author in authors %}
<input type="radio" name="choice" id="{{ author.id }}" value="{{ author.id }}">
<label for="author">{{ author.first_name}} {{ author.last_name}}</label><br>
{% endfor %}
<input type="submit" value="Update">
</form>

Answer 1

So if I understand you have a listView with all the authors publishers and genres, and you want to call the updateView with the author selected.
One way is to use javascript:
give an id to the form tag :
map an event on click to the submit button
get the selected radiobox element and value
change the form action value with the value you get
call the submit event
Here is some sample of Jquery you can use to do that:
$(document).ready(function(){
$('#myformid').submit(function(event) {
//prevent the form submition on click
event.preventDefault();
//get the selected value
var selected_author_id =$('input[name="choice"]:checked').val();
console.log(selected_author_id);
//add this value to our form action attribute
$(this).attr('action', 'update-author/'+String(selected_author_id));
//finaly submit the form
$(this).unbind('submit').submit();
});
});
Don't forget to import jquery as well