def create(request):
if request.method == 'GET':
context = { 'form': CreateForm() }
return render(request, 'addrbook/create.html', context)
entry = Entry(created_by=request.user, creation_time=datetime.now(),
updated_by=request.user, update_time=datetime.now())
create_form = CreateForm(request.POST, request.FILES, instance=entry)
if not create_form.is_valid():
context = { 'form': create_form }
return render(request, 'addrbook/create.html', context)
# Save the new record (note: this sets value for entry.id)
create_form.save()
if create_form.cleaned_data['picture']:
url = s3_upload(create_form.cleaned_data['picture'], entry.id)
entry.picture_url = url
entry.save()
message = 'Entry created'
edit_form = EditForm(instance=entry)
context = { 'message': message, 'entry': entry, 'form': edit_form }
return render(request, 'addrbook/edit.html', context)
def edit(request, id):
try:
if request.method == 'GET':
entry = Entry.objects.get(id=id)
form = EditForm(instance=entry)
context = { 'entry': entry, 'form': form }
return render(request, 'addrbook/edit.html', context)
entry = Entry.objects.select_for_update().get(id=id)
db_update_time = entry.update_time # Copy timestamp to check after form is bound
form = EditForm(request.POST, request.FILES, instance=entry)
if not form.is_valid():
context = { 'entry': entry, 'form': form }
return render(request, 'addrbook/edit.html', context)
# if update times do not match, someone else updated DB record while were editing
if db_update_time != form.cleaned_data['update_time']:
# refetch from DB and try again.
entry = Entry.objects.get(id=id)
form = EditForm(instance=entry)
context = {
'message': 'Another user has modified this record. Re-enter your changes.',
'entry': entry,
'form': form,
}
return render(request, 'addrbook/edit.html', context)
if form.cleaned_data['picture']:
url = s3_upload(form.cleaned_data['picture'], entry.id)
entry.picture_url = url
# Set update info to current time and user, and save it!
entry.update_time = datetime.now()
entry.updated_by = request.user
form.save()
# form = EditForm(instance=entry)
context = {
'message': 'Entry updated.',
'entry': entry,
'form': form,
}
return render(request, 'addrbook/edit.html', context)
except Entry.DoesNotExist:
context = { 'message': 'Record with id={0} does not exist'.format(id) }
return render(request, 'addrbook/search.html', context)