Single View for Add/Edit in Django

July 22, 2024, 3:11 p.m.

In this blog post, we’ll explore a practical approach to Create Add and Edit in the Same View & Template – Django in a Django application using the same view and rendering it in the same template. This technique is particularly useful when you want to streamline your code and improve user experience.

Section ID Check: When the view is accessed, it checks if a section ID is provided. If so, it retrieves the corresponding section from the database for editing.
Form Submission: Upon form submission, the view processes the data using a SectionForm. If the form is valid, it saves the changes to the database and redirects the user to the add_section view.
Form Rendering: If the request method is not POST (i.e., GET), the view renders the form with the section data (if provided) or empty fields for adding a new section.
Context Preparation: The view fetches all sections from the database and prepares the context with the form and section data for rendering the template.

def add_section(request, section_id=None):
"""
Add a new section or edit an existing one
and render it in the same template
"""
# Check if a section ID is provided for editing
section = None # Initialise with no section
if section_id:
try:
section = Section.objects.get(id=section_id)
except Section.DoesNotExist:
raise Http404("Section does not exist.") # Process form submission
if request.method == "POST":
form = SectionForm(request.POST, instance=section)
if form.is_valid():
section = form.save()
return redirect("add_section")
else:
form = SectionForm(instance=section) # Fetch all sections
sections = Section.objects.all() # Prepare context for rendering the template
context = {"form": form, "sections": sections}
return render(request, "students/sections/add_section.html", context)

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Single View for Add/Edit in Django

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