def item_render(item):
eqn_set = set()
concept_set = set()
document = decode_document(json.loads(item.body), eqn_set, concept_set)
eqn_map = {reqn.pk: {'html': reqn.html}
for reqn in RenderedEquation.objects.filter(pk__in=eqn_set)}
concept_map = {concept.id: concept.name
for concept in Concept.objects.filter(id__in=concept_set)}
result = get_refs_and_render(item.item_type, document, eqn_map, concept_map)
if result['errors']:
raise IllegalMathItem('Error in published item {}: {}'.format(item.id, result['error']))
return result
def edit_item(request, item):
context = {'title': '{} {}'.format('Edit' if item.id else 'New', item)}
if request.method == 'POST':
item.body = request.POST['src']
if request.POST['submit'] == 'preview':
document, eqns, concepts = draft_prepare(item)
item_data = get_refs_and_render(item.item_type, document, eqns, concepts)
context['item_data'] = item_data
elif request.POST['submit'] == 'save':
item.save()
return redirect(item)
context['item'] = item
return render(request, 'drafts/edit.html', context)
def show_draft(request, id_str):
item = get_object_or_404(DraftItem, id=int(id_str), created_by=request.user)
document, eqns, concepts = draft_prepare(item)
if request.method == 'POST':
if request.POST['submit'] == 'delete':
item.delete()
return redirect('list-drafts')
elif request.POST['submit'] == 'publish':
mathitem = publish(request.user, item.item_type, item.parent, document, eqns, concepts)
item.delete()
return redirect(mathitem)
return render(request, 'drafts/show.html', {
'title': str(item),
'item': item,
'item_data': get_refs_and_render(item.item_type, document, eqns, concepts),
})