def clean(self):
cleaned_data = self.cleaned_data
content_type_id = cleaned_data.get("content_type", None)
object_id = cleaned_data.get("object_id", None)
if content_type_id is None or object_id is None:
raise forms.ValidationError(_("Missing Parameter"))
try:
ct = ContentType.objects.get(id=content_type_id)
except ContentType.DoesNotExist:
raise forms.ValidationError(_("Bogus content"))
try:
obj = ct.get_object_for_this_type(id=object_id)
except ct.model_class().DoesNotExist:
raise forms.ValidationError(_("Bogus object"))
cleaned_data["content_type"] = ct
# Connected Model must have attribute annotatable set to True,
# so not every model can be annotated, don't know if this is cool in practice
if not getattr(obj, "annotatable", False):
raise forms.ValidationError(_("Invalid object"))
if not hasattr(obj,Annotation.field_name):
raise forms.ValidationError(_("Bogus object"))
text = getattr(obj, Annotation.field_name)
if len(text) != cleaned_data["lengthcheck"]:
raise forms.ValidationError(_("Text changed"))
if not "selection_start" in cleaned_data or not "selection_end" in cleaned_data:
raise forms.ValidationError(_("Missing Parameter for selection"))
if not Annotation.validate_selection(text, start=cleaned_data["selection_start"], end=cleaned_data["selection_end"]):
raise forms.ValidationError(_("Bogus selection"))
# disallow footnotes? uncomment following
# if cleaned_data["selection_end"] == cleaned_data["selection_start"]:
# raise forms.ValidationError(_("No Selection"))
if "flags" not in cleaned_data or "selection_start" not in cleaned_data:
raise forms.ValidationError(_("Missing parameters"))
return cleaned_data
def post_annotation(request):
if request.method != "POST":
return HttpResponseNotAllowed(["POST"])
if request.user.is_anonymous():
return HttpResponseForbidden(_("Sorry, only logged users can annotate."))
form = NewAnnotationForm(request.POST)
if form.is_valid():
new_annotation = Annotation(content_type=form.cleaned_data["content_type"],
object_id=form.cleaned_data["object_id"],
user=request.user,
selection_start=form.cleaned_data["selection_start"],
selection_end=form.cleaned_data["selection_end"],
comment=form.cleaned_data["comment"],
flags=form.cleaned_data["flags"],
color=form.cleaned_data["color"])
new_annotation.save()
return HttpResponseRedirect(new_annotation.get_absolute_url())
else:
return HttpResponseBadRequest()
