How to display 'auto_now_add' fields in django forms? - django

Question

I wish to know how to display 'auto_now_add' fields (and as disabled fields) in django frontend forms.
I attach some of relevant code:
# models.py
class ModelA(models.Model):
name = models.CharField('Name', max_length=100)
inserted = models.DateTimeField('Inserted ', auto_now_add=True)
# forms.py
class ProcessModelAForm(forms.ModelForm):
class Meta:
model = ModelA
fields = '__all__'
widgets = {
"name": forms.TextInput({
"class": "form-control",
"disabled": True,
}),
"inserted": forms.DateTimeInput({
"class": "form-control",
"disabled": True,
}),
}
# views.py
def process_model_a(request, pk):
instance_model_a = get_object_or_404(ModelA, id=pk)
process_form = ProcessModelAForm(instance=instance_model_a)
if request.method == 'POST':
# ...
return render(request, 'myapp/process_model_a.html', {'process_form ': process_form , 'instance':instance_model_a , } )
# process_model_a.html
<form method="post" class="form-horizontal">
{% csrf_token %}
{% for field in process_form %}
<div class="form-group form-group-lg">
<label for="{{ field.id_for_label }}" class="col-sm-2 control-label">{{field.label}}</label>
<div class="col-sm-6">
{{ field }}
</div>
<div class="col-sm-4">
{{ field.errors }}
</div>
</div>
{% endfor %}
<div class="form-group">
<div class="col-sm-10">
<button type="submit" class="btn btn-primary btn-lg center-block">Process</button>
</div>
</div>
</form>
The page "process_model_a.html" shows only "name" fields.
How can I display also "inserted" field?
Thanks.