for container_name, container_content_type in contentreference_containers:
if ('contentreference_container_%s' % container_name) in form.cleaned_data:
content = form.cleaned_data[('contentreference_container_%s' % container_name)]
for container_name, container_content_type in contentreference_containers:
if ('contentreference_container_%s' % container_name) in form.cleaned_data:
content = form.cleaned_data[('contentreference_container_%s' % container_name)]