示例#1
0
文件: views.py 项目: koudev/CoralNet
def source_new(request):
    """
    Page with the form to create a new Source.
    """

    # We can get here one of two ways: either we just got to the form
    # page, or we just submitted the form.  If POST, we submitted; if
    # GET, we just got here.
    if request.method == 'POST':
        # A form bound to the POST data
        sourceForm = ImageSourceForm(request.POST)
        pointGenForm = PointGenForm(request.POST)
        annotationAreaForm = AnnotationAreaPercentsForm(request.POST)

        # is_valid() calls our ModelForm's clean() and checks validity
        source_form_is_valid = sourceForm.is_valid()
        point_gen_form_is_valid = pointGenForm.is_valid()
        annotation_area_form_is_valid = annotationAreaForm.is_valid()

        if source_form_is_valid and point_gen_form_is_valid and annotation_area_form_is_valid:
            # After calling a ModelForm's is_valid(), an instance is created.
            # We can get this instance and add a bit more to it before saving to the DB.
            newSource = sourceForm.instance
            newSource.default_point_generation_method = PointGen.args_to_db_format(**pointGenForm.cleaned_data)
            newSource.image_annotation_area = AnnotationAreaUtils.percentages_to_db_format(**annotationAreaForm.cleaned_data)
            newSource.labelset = LabelSet.getEmptyLabelset()
            newSource.save()

            # Make the user a source admin
            newSource.assign_role(request.user, Source.PermTypes.ADMIN.code)

            # Add a success message
            messages.success(request, 'Source successfully created.')
            
            # Redirect to the source's main page
            return HttpResponseRedirect(reverse('source_main', args=[newSource.id]))
        else:
            # Show the form again, with error message
            messages.error(request, 'Please correct the errors below.')
    else:
        # An unbound form (empty form)
        sourceForm = ImageSourceForm()
        pointGenForm = PointGenForm()
        annotationAreaForm = AnnotationAreaPercentsForm()

    # RequestContext needed for CSRF verification of POST form,
    # and to correctly get the path of the CSS file being used.
    return render_to_response('images/source_new.html', {
        'sourceForm': sourceForm,
        'pointGenForm': pointGenForm,
        'annotationAreaForm': annotationAreaForm,
        },
        context_instance=RequestContext(request)
        )
示例#2
0
文件: views.py 项目: koudev/CoralNet
def source_edit(request, source_id):
    """
    Edit a source: name, visibility, location keys, etc.
    """

    source = get_object_or_404(Source, id=source_id)

    if request.method == 'POST':

        # Cancel
        cancel = request.POST.get('cancel', None)
        if cancel:
            messages.success(request, 'Edit cancelled.')
            return HttpResponseRedirect(reverse('source_main', args=[source_id]))

        # Submit
        sourceForm = ImageSourceForm(request.POST, instance=source)
        pointGenForm = PointGenForm(request.POST)
        annotationAreaForm = AnnotationAreaPercentsForm(request.POST)

        # Make sure is_valid() is called for all forms, so all forms are checked and
        # all relevant error messages appear.
        source_form_is_valid = sourceForm.is_valid()
        point_gen_form_is_valid = pointGenForm.is_valid()
        annotation_area_form_is_valid = annotationAreaForm.is_valid()

        if source_form_is_valid and point_gen_form_is_valid and annotation_area_form_is_valid:
            editedSource = sourceForm.instance
            editedSource.default_point_generation_method = PointGen.args_to_db_format(**pointGenForm.cleaned_data)
            editedSource.image_annotation_area = AnnotationAreaUtils.percentages_to_db_format(**annotationAreaForm.cleaned_data)
            editedSource.save()
            messages.success(request, 'Source successfully edited.')
            return HttpResponseRedirect(reverse('source_main', args=[source_id]))
        else:
            messages.error(request, 'Please correct the errors below.')
    else:
        # Just reached this form page
        sourceForm = ImageSourceForm(instance=source)
        pointGenForm = PointGenForm(source=source)
        annotationAreaForm = AnnotationAreaPercentsForm(source=source)

    return render_to_response('images/source_edit.html', {
        'source': source,
        'editSourceForm': sourceForm,
        'pointGenForm': pointGenForm,
        'annotationAreaForm': annotationAreaForm,
        },
        context_instance=RequestContext(request)
        )