VariableDoesNotExist error with multiple crispy forms

Using Django
1

Hi there, New to Django and coding. I’m having issues with crispy forms when trying to load a view with a form

views.py

def job_information(request, jobid):
task = get_object_or_404(jobs, jobid=jobid)

if request.method == "POST":
    form = job_form(request.POST, instance=task)
    if form.is_valid():
        form.save()
        return redirect('activities')

else:
    form = job_form(instance=task)
    return render(request, 'workinfo.html', {'form': form})

forms.py

class job_form(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(job_form, self).__init__(*args, **kwargs)

        # If you pass FormHelper constructor a form instance
        # It builds a default layout with all its fields
        self.helper = FormHelper()
        self.helper.form_id = 'id-job_form'
        self.helper.form_method = 'post'
        self.helper.form_action = 'submit_survey'
        self.helper.form_tag = False

        # You can dynamically adjust your layout
        self.helper.add_input(Submit('save', 'Save'))

workinfo.html

{% extends 'base.html'%}

{% load crispy_forms_tags %}

{% block body%}

<div class="container">
    <form action="{% url 'activities' %}" class="uniForm" method="post">
        <br>
        {% csrf_token %}
        {% crispy job_form job_form.helper %}
    </form>
</div>

{% endblock %}

when I use {% crispy job_form job_form.helper %} i get a VariableDoesNotExist error however when I just use {% crispy form %} it works fine but I want to also add a couple of inline forms and so I won’t be able to use {% crispy form %}. As using {% crispy form %} works fine I am lead to believe the issue is somehow in that crispy form tag and from reading the crispy forms documentation {% crispy job_form job_form.helper %} should work. I’m not sure why I am being thrown an error. Any help would be greatly appreciated.

2

It’s not to do with crispy. You’re passing the form to your template as the context variable form:

return render(request, 'workinfo.html', {'form': form})

Therefore at all times you shoudl refer to form, not job_form.

Another hint - call the form class JobForm. It’s conventional in Python to use “CapWords” for classes as per PEP8 : https://www.python.org/dev/peps/pep-0008/#class-names . This can help avoid the confusion you had here, between the class and the instance of it.

Hope that helps!

3

Dude! that has been bothering me for weeks. thankyou! Just to clarify, the issue was that I was calling job_form when the named context variable was ‘form’

return render(request, 'workinfo.html', {'form': form})

if I want to do multiple forms I can do the following?

views.py

return render(request, 'workinfo.html', 
{'JobForm': form1},
{'SupplementForm': form2},
...etc)

workinfo.html

{% crispy jobForm jobForm.helper %}
{% crispy SupplementForm SupplementForm.helper %}
4

Yes but for Pythonic variable names you would use lower_case_with_underscores (again, see PEP8):

job_form = JobForm(...)
supplement_form = SupplementForm(...)
return render(request, 'workinfo.html', 
{'job_form': job_form},
{'supplement_form': supplement_form})