Delete OMERO file attachments created by the 'Batch Image Export' script

deleteBatchImageExport.py

from omero.gateway import BlitzGateway

from omero.constants.namespaces import NSCREATED

user = 'root'
pw = 'omero'
host = 'localhost'

conn = BlitzGateway(user, pw, host=host, port=4064)
conn.connect()

# get all File Annotations with the 'Batch_Image_Export' namespace
namespace = NSCREATED + "/omero/export_scripts/Batch_Image_Export"

# process a group at a time...
for g in conn.listGroups():
    print 'group',  g.getId(), g.getName()

    # restrict query to group
    conn.SERVICE_OPTS.setOmeroGroup(g.getId())
    
    # Query attachments by namespace
    fileAnnotations = conn.getObjects("FileAnnotation", attributes={'ns': namespace})

    dcs = []
    for fa in fileAnnotations:
        print fa.id, fa.getFile().getName()
        dcs.append(fa.id)

    if len(dcs) == 0:
        continue

    print "Deleting %s files..." % len(dcs)

    # This will delete Annotations and linked files.
    handle = conn.deleteObjects('/Annotation', dcs);