def handle_base_object(fedora_client, item, ns, cm):
"""
Create the base object record in Fedora, add common datastreams.
@param item: The django item object from legacy workflow
@param ns: The namespace to be used for the object's pid
@param cm: The pid of the content model to be associated with the object
Other required data fields come from the item record itself: pid, label
"""
print '%s - handle base object' % (item.do_id,)
parent_pid = '%s:root' % (ns,)
pid = '%s:%s' % (ns, item.do_id)
label = drl.utils.shorten_string(item.name, 245)
# if this object already exists, return (for now)
try:
obj = fedora_client.getObject(pid)
return obj
except:
pass
# validate required objects, (for now) skip if not found
try:
mods = workflow.core.models.Item_File.objects.get(item=item, use='MODS')
dc = workflow.core.models.Item_File.objects.get(item=item, use='DC')
thumb = workflow.core.models.Item_File.objects.get(item=item, use='THUMB')
except:
return
try:
obj = addObjectToFedora(fedora_client, label, pid, parent_pid, cm)
except Exception, ex:
print 'connection error while trying to add fedora object %s: %s' % (pid, ex.message)
return False
def handle_page_object(fedora_client, fedora_object, page, ocr_path, label):
"""
The page object gets some extra relationships as a member of a book object.
It should also get:
- MODS (this should be based on parent book mods, but with page label from METS structmap)
- JP2 (derived from TIFF)
- MIX
- OCR, if available
"""
page_cm = ITEM_TYPE_CM_MAP['page']
page_basename = os.path.splitext(page.name)[0]
page_pid = '%s-%s' % (fedora_object.pid, page_basename)
page_label = u'%s, %s' % (label, drl.utils.shorten_string(fedora_object.label, 205))
extraNamespaces = { 'pageNS' : 'info:islandora/islandora-system:def/pageinfo#' }
# should the page number be a counter here instead of int(page_basename)?
extraRelationships = { fedora_relationships.rels_predicate('pageNS', 'isPageNumber') : str(int(page_basename)),
fedora_relationships.rels_predicate('pageNS', 'isPageOf') : str(fedora_object.pid) }
page_object = addObjectToFedora(fedora_client, page_label, page_pid, fedora_object.pid, page_cm, extraNamespaces=extraNamespaces, extraRelationships=extraRelationships)
fedoraLib.update_datastream(page_object, 'TIFF', page.path, label=page.name, mimeType='image/tiff', controlGroup='M')
handle_derived_jp2(page_object, page)
#handle_derived_mix(page_object, page)
if ocr_path:
ocr_filename = os.path.basename(ocr_path)
fedoraLib.update_datastream(page_object, u'OCR', ocr_path, label=unicode(ocr_filename), mimeType=u'text/plain', controlGroup='M')