return decorator
def image_get_extra_context(image):
return dict(
image=image,
source=image.source,
)
def source_get_extra_context(source):
return dict(
source=source,
)
# @image_annotation_area_must_be_editable('image_id')
image_annotation_area_must_be_editable = ModelViewDecorator(
model_class=Image,
meets_requirements=lambda image, request: image_annotation_area_is_editable(image),
template='annotations/annotation_area_not_editable.html',
get_extra_context=image_get_extra_context,
default_message="This image's annotation area is not editable, because re-generating points "
"would result in loss of data (such as annotations made in the annotation tool, "
"or points imported from outside the site)."
)
# @image_labelset_required('image_id')
image_labelset_required = ModelViewDecorator(
model_class=Image,
meets_requirements=lambda image, request: not image.source.labelset.isEmptyLabelset(),
template='annotations/labelset_required.html',
get_extra_context=image_get_extra_context,
default_message="You need to create a labelset before you can use this page."
)
def image_detail(request, image_id):
"""
View for seeing an image's full size and details/metadata.
"""
image = get_object_or_404(Image, id=image_id)
source = image.source
metadata = image.metadata
# Get the metadata fields (including the right no. of keys for the source)
# and organize into fieldsets. The image detail form already has this
# logic, so let's just borrow the form's functionality...
imageDetailForm = ImageDetailForm(source=source, initial=model_to_dict(metadata))
fieldsets = imageDetailForm.fieldsets
# ...But we don't need the form's "Other" value fields.
# (Code note: [:] creates a copy of the list, so we're not iterating over the same list we're removing things from)
for field in fieldsets['keys'][:]:
if field.name.endswith('_other'):
fieldsets['keys'].remove(field)
detailsets = dict()
for key, fieldset in fieldsets.items():
detailsets[key] = [dict(label=field.label,
name=field.name,
value=getattr(metadata, field.name))
for field in fieldset]
# Feel free to change this constant according to the page layout.
MAX_SCALED_WIDTH = 800
if image.original_width > MAX_SCALED_WIDTH:
# Parameters into the easy_thumbnails template tag:
# (specific width, height that keeps the aspect ratio)
thumbnail_dimensions = (MAX_SCALED_WIDTH, 0)
else:
# No thumbnail needed
thumbnail_dimensions = False
# Next and previous image links
next_image = get_next_image(image)
prev_image = get_prev_image(image)
# Annotation status
if image.status.annotatedByHuman:
annotation_status = "Complete"
elif image_has_any_human_annotations(image):
annotation_status = "Partially annotated"
else:
annotation_status = "Not started"
# Should we include a link to the annotation area edit page?
annotation_area_editable = image_annotation_area_is_editable(image)
return render_to_response('images/image_detail.html', {
'source': source,
'image': image,
'next_image': next_image,
'prev_image': prev_image,
'metadata': metadata,
'detailsets': detailsets,
'has_thumbnail': bool(thumbnail_dimensions),
'thumbnail_dimensions': thumbnail_dimensions,
'annotation_status': annotation_status,
'annotation_area_editable': annotation_area_editable,
},
context_instance=RequestContext(request)
)