def image_upload_process(imageFiles, imageOptionsForm, annotationOptionsForm, source, currentUser, annoFile):
"""
Helper method for the image upload view and the image+annotation
import view.
"""
uploadedImages = []
duplicates = 0
imagesUploaded = 0
annotationsImported = 0
importedUser = get_imported_user()
dupeOption = imageOptionsForm.cleaned_data['skip_or_replace_duplicates']
annotationData = None
if annoFile:
try:
annotationData = annotations_file_to_python(annoFile, source)
except FileContentError as errorDetail:
return dict(error=True,
message='Error reading labels file %s. %s' % (annoFile.name, errorDetail),
)
for imageFile in imageFiles:
filename = imageFile.name
metadataDict = None
metadata = Metadata(height_in_cm=source.image_height_in_cm)
if imageOptionsForm.cleaned_data['specify_metadata'] == 'filenames':
try:
metadataDict = filename_to_metadata(filename, source)
# Filename parse error.
# TODO: check for validity of the file type and contents, too.
except (ValueError, StopIteration):
return dict(error=True,
message='Upload failed - Error when parsing the filename %s for metadata.' % filename,
)
# Detect duplicate images and handle them
dupe = find_dupe_image(source, **metadataDict)
if dupe:
duplicates += 1
if dupeOption == 'skip':
# Skip uploading this file.
continue
elif dupeOption == 'replace':
# Proceed uploading this file, and delete the dupe.
dupe.delete()
# Set the metadata
valueDict = get_location_value_objs(source, metadataDict['values'], createNewValues=True)
photoDate = datetime.date(year = int(metadataDict['year']),
month = int(metadataDict['month']),
day = int(metadataDict['day']))
metadata.name = metadataDict['name']
metadata.photo_date = photoDate
for key, value in valueDict.iteritems():
setattr(metadata, key, value)
else:
metadata.name = filename
# Image + annotation import form
# Assumes we got the images' metadata (from filenames or otherwise)
if annotationData:
pointsOnlyOption = annotationOptionsForm.cleaned_data['points_only']
# Use the location values and the year to build a string identifier for the image, such as:
# Shore1;Reef5;...;2008
imageIdentifier = get_image_identifier(metadataDict['values'], metadataDict['year'])
# Use the identifier as the index into the annotation file's data.
if not annotationData.has_key(imageIdentifier):
return dict(error=True,
message='%s seems to have no annotations for the image file %s, which has the following keys:\n%s' % (
annoFile.name, imageFile.name, imageIdentifier.replace(';',' '))
)
imageAnnotations = annotationData[imageIdentifier]
status = ImageStatus()
status.save()
metadata.annotation_area = AnnotationAreaUtils.IMPORTED_STR
metadata.save()
img = Image(original_file=imageFile,
uploaded_by=currentUser,
point_generation_method=PointGen.args_to_db_format(
point_generation_type=PointGen.Types.IMPORTED,
imported_number_of_points=len(imageAnnotations)
),
metadata=metadata,
source=source,
status=status,
)
img.save()
# Iterate over this image's annotations and save them.
pointNum = 1
for anno in imageAnnotations:
# Save the Point in the database.
point = Point(row=anno['row'], column=anno['col'], point_number=pointNum, image=img)
point.save()
if not pointsOnlyOption:
label = Label.objects.filter(code=anno['label'])[0]
# Save the Annotation in the database, marking the annotations as imported.
annotation = Annotation(user=importedUser,
point=point, image=img, label=label, source=source)
annotation.save()
annotationsImported += 1
pointNum += 1
img.status.hasRandomPoints = True
if not pointsOnlyOption:
img.status.annotatedByHuman = True
img.status.save()
# Image upload form, no annotations
else:
status = ImageStatus()
status.save()
metadata.annotation_area = source.image_annotation_area
metadata.save()
# Save the image into the DB
img = Image(original_file=imageFile,
uploaded_by=currentUser,
point_generation_method=source.default_point_generation_method,
metadata=metadata,
source=source,
status=status,
)
img.save()
# Generate and save points
generate_points(img)
# Up to 5 uploaded images will be shown
# upon successful upload.
# Prepend to list, so most recent image comes first
uploadedImages.insert(0, img)
if len(uploadedImages) > 5:
uploadedImages = uploadedImages[:5]
imagesUploaded += 1
# Construct success message.
success_message = image_upload_success_message(
num_images_uploaded=imagesUploaded,
num_dupes=duplicates,
dupe_option=dupeOption,
num_annotations=annotationsImported,
)
return dict(error=False,
uploadedImages=uploadedImages,
message=success_message,
)
def annotation_area_edit(request, image_id):
"""
Edit an image's annotation area.
"""
image = get_object_or_404(Image, id=image_id)
source = image.source
metadata = image.metadata
old_annotation_area = metadata.annotation_area
if request.method == 'POST':
# Cancel
cancel = request.POST.get('cancel', None)
if cancel:
messages.success(request, 'Edit cancelled.')
return HttpResponseRedirect(reverse('image_detail', args=[image.id]))
# Submit
annotationAreaForm = AnnotationAreaPixelsForm(request.POST, image=image)
if annotationAreaForm.is_valid():
metadata.annotation_area = AnnotationAreaUtils.pixels_to_db_format(**annotationAreaForm.cleaned_data)
metadata.save()
if metadata.annotation_area != old_annotation_area:
generate_points(image, usesourcemethod=False)
image.after_annotation_area_change()
messages.success(request, 'Annotation area successfully edited.')
return HttpResponseRedirect(reverse('image_detail', args=[image.id]))
else:
messages.error(request, 'Please correct the errors below.')
else:
# Just reached this form page
annotationAreaForm = AnnotationAreaPixelsForm(image=image)
# Scale down the image to have a max width of 800 pixels.
MAX_DISPLAY_WIDTH = 800
# jQuery UI resizing with containment isn't subpixel-precise, so
# the display height is rounded to an int. Thus, need to track
# width/height scaling factors separately for accurate calculations.
display_width = min(MAX_DISPLAY_WIDTH, image.original_width)
width_scale_factor = float(display_width) / image.original_width
display_height = int(round(image.original_height * width_scale_factor))
height_scale_factor = float(display_height) / image.original_height
dimensions = dict(
displayWidth = display_width,
displayHeight = display_height,
fullWidth = image.original_width,
fullHeight = image.original_height,
widthScaleFactor = width_scale_factor,
heightScaleFactor = height_scale_factor,
)
thumbnail_dimensions = (display_width, display_height)
return render_to_response('annotations/annotation_area_edit.html', {
'source': source,
'image': image,
'dimensions': simplejson.dumps(dimensions),
'thumbnail_dimensions': thumbnail_dimensions,
'annotationAreaForm': annotationAreaForm,
},
context_instance=RequestContext(request)
)
def image_upload_process(imageFile, imageOptionsForm,
annotation_dict_id,
csv_dict_id, metadata_import_form_class,
annotation_options_form,
source, currentUser):
is_uploading_points_or_annotations = annotation_options_form.cleaned_data['is_uploading_points_or_annotations']
filename = imageFile.name
metadata_dict = None
metadata_obj = Metadata(height_in_cm=source.image_height_in_cm)
if imageOptionsForm.cleaned_data['specify_metadata'] == 'filenames':
filename_check_result = check_image_filename(filename, source)
filename_status = filename_check_result['status']
if filename_status == 'error':
# This case should never happen if the pre-upload
# status checking is doing its job, but just in case...
return dict(
status=filename_status,
message=u"{m}".format(m=filename_check_result['message']),
link=None,
title=None,
)
# Set the metadata
metadata_dict = filename_check_result['metadata_dict']
value_dict = get_location_value_objs(source, metadata_dict['values'], createNewValues=True)
photo_date = datetime.date(
year = int(metadata_dict['year']),
month = int(metadata_dict['month']),
day = int(metadata_dict['day'])
)
metadata_obj.name = metadata_dict['name']
metadata_obj.photo_date = photo_date
for key, value in value_dict.iteritems():
setattr(metadata_obj, key, value)
elif imageOptionsForm.cleaned_data['specify_metadata'] == 'csv':
if not csv_dict_id:
return dict(
status='error',
message=u"{m}".format(m="CSV file was not uploaded."),
link=None,
title=None,
)
csv_dict_filename = os.path.join(
settings.SHELVED_ANNOTATIONS_DIR,
'csv_source{source_id}_{dict_id}.db'.format(
source_id=source.id,
dict_id=csv_dict_id,
),
)
# Corner case: the specified shelved annotation file doesn't exist.
# Perhaps the file was created a while ago and has been pruned since,
# or perhaps there is a bug.
if not os.path.isfile(csv_dict_filename):
return dict(
status='error',
message="CSV file could not be found - if you provided the .csv file a while ago, maybe it just timed out. Please retry the upload.",
link=None,
title=None,
)
csv_dict = shelve.open(csv_dict_filename)
#index into the csv_dict with the filename. the str() is to handle
#the case where the filename is a unicode object instead of a str;
#unicode objects can't index into dicts.
filename_str = str(filename)
if filename_str in csv_dict:
# There is CSV metadata for this file.
metadata_dict = csv_dict[str(filename)]
csv_dict.close()
# The reason this uses metadata_import_form_class instead of
# importing MetadataImportForm is that I'm too lazy to deal with the
# circular-import implications of the latter solution right now.
# -Stephen
metadata_import_form = metadata_import_form_class(
source.id, True, metadata_dict,
)
if not metadata_import_form.is_valid():
return dict(
status='error',
message="Unknown error with the CSV metadata.",
link=None,
title=None,
)
fields = ['photo_date', 'value1', 'value2', 'value3', 'value4',
'value5', 'height_in_cm', 'latitude', 'longitude',
'depth', 'camera', 'photographer', 'water_quality',
'strobes', 'framing', 'balance']
for field in fields:
if not field in metadata_import_form.fields:
# A location value field that's not in this form
continue
value = metadata_import_form.cleaned_data[field]
# Check for a non-empty value; don't want empty values to
# override default values that we've already set on the
# metadata_obj
if value:
setattr(metadata_obj, field, value)
else:
# No CSV metadata for this file.
csv_dict.close()
metadata_obj.name = filename
else:
# Not specifying any metadata at upload time.
metadata_obj.name = filename
image_annotations = None
has_points_or_annotations = False
if is_uploading_points_or_annotations:
# Corner case: somehow, we're uploading with points+annotations and without
# a checked annotation file specified. This probably indicates a bug.
if not annotation_dict_id:
return dict(
status='error',
message=u"{m}".format(m=str_consts.UPLOAD_ANNOTATIONS_ON_AND_NO_ANNOTATION_DICT_ERROR_STR),
link=None,
title=None,
)
annotation_dict_filename = os.path.join(
settings.SHELVED_ANNOTATIONS_DIR,
'source{source_id}_{dict_id}'.format(
source_id=source.id,
dict_id=annotation_dict_id,
),
)
# Corner case: the specified shelved annotation file doesn't exist.
# Perhaps the file was created a while ago and has been pruned since,
# or perhaps there is a bug.
if not os.path.isfile(annotation_dict_filename):
return dict(
status='error',
message="Annotations could not be found - if you provided the .txt file a while ago, maybe it just timed out. Please retry the upload.",
link=None,
title=None,
)
# Use the location values and the year to build a string identifier for the image, such as:
# Shore1;Reef5;...;2008
# Convert to a string (instead of a unicode string) for the shelve key lookup.
image_identifier = str(get_image_identifier(metadata_dict['values'], metadata_dict['year']))
annotation_dict = shelve.open(annotation_dict_filename)
if annotation_dict.has_key(image_identifier):
image_annotations = annotation_dict[image_identifier]
has_points_or_annotations = True
annotation_dict.close()
if has_points_or_annotations:
# Image upload with points/annotations
is_uploading_annotations_not_just_points = annotation_options_form.cleaned_data['is_uploading_annotations_not_just_points']
imported_user = get_imported_user()
status = ImageStatus()
status.save()
metadata_obj.annotation_area = AnnotationAreaUtils.IMPORTED_STR
metadata_obj.save()
img = Image(
original_file=imageFile,
uploaded_by=currentUser,
point_generation_method=PointGen.args_to_db_format(
point_generation_type=PointGen.Types.IMPORTED,
imported_number_of_points=len(image_annotations)
),
metadata=metadata_obj,
source=source,
status=status,
)
img.save()
# Iterate over this image's annotations and save them.
point_num = 0
for anno in image_annotations:
# Save the Point in the database.
point_num += 1
point = Point(row=anno['row'], column=anno['col'], point_number=point_num, image=img)
point.save()
if is_uploading_annotations_not_just_points:
label = Label.objects.filter(code=anno['label'])[0]
# Save the Annotation in the database, marking the annotations as imported.
annotation = Annotation(user=imported_user,
point=point, image=img, label=label, source=source)
annotation.save()
img.status.hasRandomPoints = True
if is_uploading_annotations_not_just_points:
img.status.annotatedByHuman = True
img.status.save()
else:
# Image upload, no points/annotations
image_status = ImageStatus()
image_status.save()
metadata_obj.annotation_area = source.image_annotation_area
metadata_obj.save()
# Save the image into the DB
img = Image(original_file=imageFile,
uploaded_by=currentUser,
point_generation_method=source.default_point_generation_method,
metadata=metadata_obj,
source=source,
status=image_status,
)
img.save()
# Generate and save points
generate_points(img)
success_message = "Uploaded"
return dict(
status='ok',
message=success_message,
link=reverse('image_detail', args=[img.id]),
title=img.get_image_element_title(),
image_id=img.id,
)