def create_tables():
from models import Image, Imageuri, ImageFragment, Metadata, Annotation
Image.create_table()
Imageuri.create_table()
ImageFragment.create_table()
Metadata.create_table()
Annotation.create_table()
def add_imageuri(self, uri, image):
"""
Adds an Imageuri object to a Image Object
"""
global ns_ma
try:
imageuri = Imageuri.get(uri=uri)
if imageuri.image == image:
return False
except Imageuri.DoesNotExist:
imageuri = Imageuri.create(
image=image,
uri=uri,
)
imageuri.save()
try:
imagefrag = ImageFragment.get(x=0, y=0, image=image)
urimeta = self.add_metadata(imagefrag, ns_ma)
self.add_annotation(urimeta, "relation", uri)
return True
except ImageFragment.DoesNotExist:
return False
return True
def add_fragment(self, image, coordinates):
""" Add a fragment to an image instance requiring
coordinates with first value as x and second value as y
"""
try:
imgfrag = ImageFragment.get(image=image, x=coordinates[0], y=coordinates[1], visible=True)
return imgfrag
except ImageFragment.DoesNotExist:
imgfrag = ImageFragment.create(
image = image,
x = coordinates[0],
y = coordinates[1],
w = defaultfragsize,
h = defaultfragsize,)
imgfrag.save()
return imgfrag
def image_detail(imageid):
"""
function that is when a specific image is requested
the metadata of the requested image is loaded (if there is one)
and given to the template
"""
try:
image = Image.get(id=imageid)
imgfrag = ImageFragment.get(image=image, x=0, y=0, visible=True)
imgmeta = Metadata.get(imgfrag=imgfrag, namespace="http://www.w3.org/ns/ma-ont#")
annos = Annotation.get(imgmeta=imgmeta)
return render_template('image_detail.html', img=image,imgmeta=imgmeta)
except Imageuri.DoesNotExist:
flash('Die Bildnummer wurde nicht gefunden. Bitte waehle ein anderes Bild.', 'error')
return render_template('images.html')
except ImageFragment.DoesNotExist:
return render_template('image_detail.html', img=image)
def get_fragments(self, image):
return ImageFragment.select().where(image=image)