def metadata_needed_for(self, collection_details):
"""Returns identifiers in the collection that could benefit from
distributor metadata on the circulation manager.
"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(
self._db, client, collection_details
)
resolver = IdentifierResolutionCoverageProvider
unresolved_identifiers = collection.unresolved_catalog(
self._db, resolver.DATA_SOURCE_NAME, resolver.OPERATION
)
# Omit identifiers that currently have metadata pending for
# the IntegrationClientCoverImageCoverageProvider.
data_source = DataSource.lookup(
self._db, collection.name, autocreate=True
)
is_awaiting_metadata = self._db.query(
CoverageRecord.id, CoverageRecord.identifier_id
).filter(
CoverageRecord.data_source_id==data_source.id,
CoverageRecord.status==CoverageRecord.REGISTERED,
CoverageRecord.operation==IntegrationClientCoverImageCoverageProvider.OPERATION,
).subquery()
unresolved_identifiers = unresolved_identifiers.outerjoin(
is_awaiting_metadata,
Identifier.id==is_awaiting_metadata.c.identifier_id
).filter(is_awaiting_metadata.c.id==None)
# Add a message for each unresolved identifier
pagination = load_pagination_from_request(default_size=25)
feed_identifiers = pagination.apply(unresolved_identifiers).all()
messages = list()
for identifier in feed_identifiers:
messages.append(OPDSMessage(
identifier.urn, HTTP_ACCEPTED, "Metadata needed."
))
title = "%s Metadata Requests for %s" % (collection.protocol, client.url)
metadata_request_url = self.collection_feed_url(
'metadata_needed_for', collection
)
request_feed = AcquisitionFeed(
self._db, title, metadata_request_url, [], VerboseAnnotator,
precomposed_entries=messages
)
self.add_pagination_links_to_feed(
pagination, unresolved_identifiers, request_feed,
'metadata_needed_for', collection
)
return feed_response(request_feed)
def metadata_needed_for(self, collection_details):
"""Returns identifiers in the collection that could benefit from
distributor metadata on the circulation manager.
"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(self._db, client,
collection_details)
resolver = IdentifierResolutionCoverageProvider
unresolved_identifiers = collection.unresolved_catalog(
self._db, resolver.DATA_SOURCE_NAME, resolver.OPERATION)
# Omit identifiers that currently have metadata pending for
# the IntegrationClientCoverImageCoverageProvider.
data_source = DataSource.lookup(self._db,
collection.name,
autocreate=True)
is_awaiting_metadata = self._db.query(
CoverageRecord.id, CoverageRecord.identifier_id).filter(
CoverageRecord.data_source_id == data_source.id,
CoverageRecord.status == CoverageRecord.REGISTERED,
CoverageRecord.operation ==
IntegrationClientCoverImageCoverageProvider.OPERATION,
).subquery()
unresolved_identifiers = unresolved_identifiers.outerjoin(
is_awaiting_metadata,
Identifier.id == is_awaiting_metadata.c.identifier_id).filter(
is_awaiting_metadata.c.id == None)
# Add a message for each unresolved identifier
pagination = load_pagination_from_request(default_size=25)
feed_identifiers = pagination.apply(unresolved_identifiers).all()
messages = list()
for identifier in feed_identifiers:
messages.append(
OPDSMessage(identifier.urn, HTTP_ACCEPTED, "Metadata needed."))
title = "%s Metadata Requests for %s" % (collection.protocol,
client.url)
metadata_request_url = self.collection_feed_url(
'metadata_needed_for', collection)
request_feed = AcquisitionFeed(self._db,
title,
metadata_request_url, [],
VerboseAnnotator,
precomposed_entries=messages)
self.add_pagination_links_to_feed(pagination, unresolved_identifiers,
request_feed, 'metadata_needed_for',
collection)
return feed_response(request_feed)
def remove_items(self, collection_details):
"""Removes identifiers from a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(
self._db, client, collection_details
)
urns = request.args.getlist('urn')
messages = []
identifiers_by_urn, failures = Identifier.parse_urns(self._db, urns)
for urn in failures:
message = OPDSMessage(
urn, INVALID_URN.status_code, INVALID_URN.detail
)
messages.append(message)
# Find the IDs of the subset of provided identifiers that are
# in the catalog, so we know which ones to delete and give a
# 200 message. Also get a SQLAlchemy clause that selects only
# those IDs.
matching_ids, identifier_match_clause = self._in_catalog_subset(
collection, identifiers_by_urn
)
# Use that clause to delete all of the relevant catalog
# entries.
delete_stmt = collections_identifiers.delete().where(
identifier_match_clause
)
self._db.execute(delete_stmt)
# IDs that matched get a 200 message; all others get a 404
# message.
for urn, identifier in identifiers_by_urn.items():
if identifier.id in matching_ids:
status = HTTP_OK
description = "Successfully removed"
else:
status = HTTP_NOT_FOUND
description = "Not in catalog"
message = OPDSMessage(urn, status, description)
messages.append(message)
title = "%s Catalog Item Removal for %s" % (collection.protocol, client.url)
url = self.collection_feed_url("remove", collection, urn=urns)
removal_feed = AcquisitionFeed(
self._db, title, url, [], VerboseAnnotator,
precomposed_entries=messages
)
return feed_response(removal_feed)
def remove_items(self, collection_details):
"""Removes identifiers from a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(self._db, client,
collection_details)
urns = request.args.getlist('urn')
messages = []
identifiers_by_urn, failures = Identifier.parse_urns(self._db, urns)
for urn in failures:
message = OPDSMessage(urn, INVALID_URN.status_code,
INVALID_URN.detail)
messages.append(message)
# Find the IDs of the subset of provided identifiers that are
# in the catalog, so we know which ones to delete and give a
# 200 message. Also get a SQLAlchemy clause that selects only
# those IDs.
matching_ids, identifier_match_clause = self._in_catalog_subset(
collection, identifiers_by_urn)
# Use that clause to delete all of the relevant catalog
# entries.
delete_stmt = collections_identifiers.delete().where(
identifier_match_clause)
self._db.execute(delete_stmt)
# IDs that matched get a 200 message; all others get a 404
# message.
for urn, identifier in identifiers_by_urn.items():
if identifier.id in matching_ids:
status = HTTP_OK
description = "Successfully removed"
else:
status = HTTP_NOT_FOUND
description = "Not in catalog"
message = OPDSMessage(urn, status, description)
messages.append(message)
title = "%s Catalog Item Removal for %s" % (collection.protocol,
client.url)
url = self.collection_feed_url("remove", collection, urn=urns)
removal_feed = AcquisitionFeed(self._db,
title,
url, [],
VerboseAnnotator,
precomposed_entries=messages)
return feed_response(removal_feed)
def suppressed(self):
this_url = self.url_for('suppressed')
annotator = AdminAnnotator(self.circulation)
pagination = load_pagination_from_request()
if isinstance(pagination, ProblemDetail):
return pagination
opds_feed = AdminFeed.suppressed(
_db=self._db, title="Hidden Books",
url=this_url, annotator=annotator,
pagination=pagination
)
return feed_response(opds_feed)
def complaints(self):
this_url = self.url_for('complaints')
annotator = AdminAnnotator(self.circulation)
pagination = load_pagination_from_request()
if isinstance(pagination, ProblemDetail):
return pagination
opds_feed = AdminFeed.complaints(
_db=self._db, title="Complaints",
url=this_url, annotator=annotator,
pagination=pagination
)
return feed_response(opds_feed)
def add_items(self, collection_details):
"""Adds identifiers to a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(
self._db, client, collection_details
)
urns = request.args.getlist('urn')
messages = []
identifiers_by_urn, failures = Identifier.parse_urns(self._db, urns)
for urn in failures:
message = OPDSMessage(
urn, INVALID_URN.status_code, INVALID_URN.detail
)
messages.append(message)
# Find the subset of incoming identifiers that are already
# in the catalog.
already_in_catalog, ignore = self._in_catalog_subset(
collection, identifiers_by_urn
)
# Everything else needs to be added to the catalog.
needs_to_be_added = [
x for x in identifiers_by_urn.values()
if x.id not in already_in_catalog
]
collection.catalog_identifiers(needs_to_be_added)
for urn, identifier in identifiers_by_urn.items():
if identifier.id in already_in_catalog:
status = HTTP_OK
description = "Already in catalog"
else:
status = HTTP_CREATED
description = "Successfully added"
messages.append(OPDSMessage(urn, status, description))
title = "%s Catalog Item Additions for %s" % (collection.protocol, client.url)
url = self.collection_feed_url('add', collection, urn=urns)
addition_feed = AcquisitionFeed(
self._db, title, url, [], VerboseAnnotator,
precomposed_entries=messages
)
return feed_response(addition_feed)
def add_items(self, collection_details):
"""Adds identifiers to a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(self._db, client,
collection_details)
urns = request.args.getlist('urn')
messages = []
identifiers_by_urn, failures = Identifier.parse_urns(self._db, urns)
for urn in failures:
message = OPDSMessage(urn, INVALID_URN.status_code,
INVALID_URN.detail)
messages.append(message)
# Find the subset of incoming identifiers that are already
# in the catalog.
already_in_catalog, ignore = self._in_catalog_subset(
collection, identifiers_by_urn)
# Everything else needs to be added to the catalog.
needs_to_be_added = [
x for x in identifiers_by_urn.values()
if x.id not in already_in_catalog
]
collection.catalog_identifiers(needs_to_be_added)
for urn, identifier in identifiers_by_urn.items():
if identifier.id in already_in_catalog:
status = HTTP_OK
description = "Already in catalog"
else:
status = HTTP_CREATED
description = "Successfully added"
messages.append(OPDSMessage(urn, status, description))
title = "%s Catalog Item Additions for %s" % (collection.protocol,
client.url)
url = self.collection_feed_url('add', collection, urn=urns)
addition_feed = AcquisitionFeed(self._db,
title,
url, [],
VerboseAnnotator,
precomposed_entries=messages)
return feed_response(addition_feed)
def add_items(self, collection_details):
"""Adds identifiers to a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection, ignore = Collection.from_metadata_identifier(
self._db, collection_details)
urns = request.args.getlist('urn')
messages = []
for urn in urns:
message = None
identifier = None
try:
identifier, ignore = Identifier.parse_urn(self._db, urn)
except Exception as e:
identifier = None
if not identifier:
message = OPDSMessage(urn, INVALID_URN.status_code,
INVALID_URN.detail)
else:
status = HTTP_OK
description = "Already in catalog"
if identifier not in collection.catalog:
collection.catalog_identifier(self._db, identifier)
status = HTTP_CREATED
description = "Successfully added"
message = OPDSMessage(urn, status, description)
messages.append(message)
title = "%s Catalog Item Additions for %s" % (collection.protocol,
client.url)
url = cdn_url_for("add",
collection_metadata_identifier=collection.name,
urn=urns)
addition_feed = AcquisitionFeed(self._db,
title,
url, [],
VerboseAnnotator,
precomposed_entries=messages)
return feed_response(addition_feed)
def remove_items(self, collection_details):
"""Removes identifiers from a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection, ignore = Collection.from_metadata_identifier(
self._db, collection_details)
urns = request.args.getlist('urn')
messages = []
for urn in urns:
message = None
identifier = None
try:
identifier, ignore = Identifier.parse_urn(self._db, urn)
except Exception as e:
identifier = None
if not identifier:
message = OPDSMessage(urn, INVALID_URN.status_code,
INVALID_URN.detail)
else:
if identifier in collection.catalog:
collection.catalog.remove(identifier)
message = OPDSMessage(urn, HTTP_OK, "Successfully removed")
else:
message = OPDSMessage(urn, HTTP_NOT_FOUND,
"Not in catalog")
messages.append(message)
title = "%s Catalog Item Removal for %s" % (collection.protocol,
client.url)
url = cdn_url_for("remove",
collection_metadata_identifier=collection.name,
urn=urns)
removal_feed = AcquisitionFeed(self._db,
title,
url, [],
VerboseAnnotator,
precomposed_entries=messages)
return feed_response(removal_feed)
def updates_feed(self):
collection = self.authenticated_collection_from_request()
if isinstance(collection, ProblemDetail):
return collection
last_update_time = request.args.get('last_update_time', None)
if last_update_time:
last_update_time = datetime.strptime(last_update_time, "%Y-%m-%dT%H:%M:%SZ")
updated_works = collection.works_updated_since(self._db, last_update_time)
pagination = load_pagination_from_request()
works = pagination.apply(updated_works).all()
title = "%s Updates" % collection.name
def update_url(time=last_update_time, page=None):
kw = dict(_external=True)
if time:
kw.update({'last_update_time' : last_update_time})
if page:
kw.update(page.items())
return cdn_url_for("updates", **kw)
update_feed = AcquisitionFeed(
self._db, title, update_url(), works, VerboseAnnotator
)
if len(updated_works.all()) > pagination.size + pagination.offset:
update_feed.add_link_to_feed(
update_feed.feed, rel="next",
href=update_url(page=pagination.next_page)
)
if pagination.offset > 0:
update_feed.add_link_to_feed(
update_feed.feed, rel="first",
href=update_url(page=pagination.first_page)
)
previous_page = pagination.previous_page
if previous_page:
update_feed.add_link_to_feed(
update_feed.feed, rel="previous",
href=update_url(page=previous_page)
)
return feed_response(update_feed)
def remove_items(self):
collection = self.authenticated_collection_from_request()
if isinstance(collection, ProblemDetail):
return collection
urns = request.args.getlist('urn')
messages = []
for urn in urns:
message = None
identifier = None
try:
identifier, ignore = Identifier.parse_urn(self._db, urn)
except Exception as e:
identifier = None
if not identifier:
message = OPDSMessage(
urn, INVALID_URN.status_code, INVALID_URN.detail
)
else:
if identifier in collection.catalog:
collection.catalog.remove(identifier)
message = OPDSMessage(
urn, HTTP_OK, "Successfully removed"
)
else:
message = OPDSMessage(
urn, HTTP_NOT_FOUND, "Not in collection catalog"
)
if message:
messages.append(message)
title = "%s Catalog Item Removal" % collection.name
url = cdn_url_for("remove", urn=urns)
removal_feed = AcquisitionFeed(
self._db, title, url, [], VerboseAnnotator,
precomposed_entries=messages
)
return feed_response(removal_feed)
def updates_feed(self, collection_details):
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection, ignore = Collection.from_metadata_identifier(
self._db, collection_details)
last_update_time = request.args.get('last_update_time', None)
if last_update_time:
last_update_time = datetime.strptime(last_update_time,
"%Y-%m-%dT%H:%M:%SZ")
updated_works = collection.works_updated_since(self._db,
last_update_time)
pagination = load_pagination_from_request()
works = pagination.apply(updated_works).all()
title = "%s Collection Updates for %s" % (collection.protocol,
client.url)
def update_url(time=last_update_time, page=None):
kw = dict(_external=True,
collection_metadata_identifier=collection_details)
if time:
kw.update({'last_update_time': last_update_time})
if page:
kw.update(page.items())
return cdn_url_for("updates", **kw)
entries = []
for work in works[:]:
entry = work.verbose_opds_entry or work.simple_opds_entry
entry = etree.fromstring(entry)
if entry:
entries.append(entry)
works.remove(work)
works = [(work.identifier, work) for work in works]
update_feed = LookupAcquisitionFeed(self._db,
title,
update_url(),
works,
VerboseAnnotator,
precomposed_entries=entries)
if len(updated_works.all()) > pagination.size + pagination.offset:
update_feed.add_link_to_feed(
update_feed.feed,
rel="next",
href=update_url(page=pagination.next_page))
if pagination.offset > 0:
update_feed.add_link_to_feed(
update_feed.feed,
rel="first",
href=update_url(page=pagination.first_page))
previous_page = pagination.previous_page
if previous_page:
update_feed.add_link_to_feed(update_feed.feed,
rel="previous",
href=update_url(page=previous_page))
return feed_response(update_feed)
def add_with_metadata(self, collection_details):
"""Adds identifiers with their metadata to a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(
self._db, client, collection_details
)
data_source = DataSource.lookup(
self._db, collection.name, autocreate=True
)
messages = []
feed = feedparser.parse(request.data)
entries = feed.get("entries", [])
entries_by_urn = { entry.get('id') : entry for entry in entries }
identifiers_by_urn, invalid_urns = Identifier.parse_urns(
self._db, entries_by_urn.keys()
)
messages = list()
for urn in invalid_urns:
messages.append(OPDSMessage(
urn, INVALID_URN.status_code, INVALID_URN.detail
))
for urn, identifier in identifiers_by_urn.items():
entry = entries_by_urn[urn]
status = HTTP_OK
description = "Already in catalog"
if identifier not in collection.catalog:
collection.catalog_identifier(identifier)
status = HTTP_CREATED
description = "Successfully added"
message = OPDSMessage(urn, status, description)
# Get a cover if it exists.
image_types = set([Hyperlink.IMAGE, Hyperlink.THUMBNAIL_IMAGE])
images = [l for l in entry.get("links", []) if l.get("rel") in image_types]
links = [LinkData(image.get("rel"), image.get("href")) for image in images]
# Create an edition to hold the title and author. LicensePool.calculate_work
# refuses to create a Work when there's no title, and if we have a title, author
# and language we can attempt to look up the edition in OCLC.
title = entry.get("title") or "Unknown Title"
author = ContributorData(
sort_name=(entry.get("author") or Edition.UNKNOWN_AUTHOR),
roles=[Contributor.PRIMARY_AUTHOR_ROLE]
)
language = entry.get("dcterms_language")
presentation = PresentationCalculationPolicy(
choose_edition=False,
set_edition_metadata=False,
classify=False,
choose_summary=False,
calculate_quality=False,
choose_cover=False,
regenerate_opds_entries=False,
)
replace = ReplacementPolicy(presentation_calculation_policy=presentation)
metadata = Metadata(
data_source,
primary_identifier=IdentifierData(identifier.type, identifier.identifier),
title=title,
language=language,
contributors=[author],
links=links,
)
edition, ignore = metadata.edition(self._db)
metadata.apply(edition, collection, replace=replace)
messages.append(message)
title = "%s Catalog Item Additions for %s" % (collection.protocol, client.url)
url = self.collection_feed_url("add_with_metadata", collection)
addition_feed = AcquisitionFeed(
self._db, title, url, [], VerboseAnnotator,
precomposed_entries=messages
)
return feed_response(addition_feed)
def add_with_metadata(self, collection_details):
"""Adds identifiers with their metadata to a Collection's catalog"""
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(self._db, client,
collection_details)
data_source = DataSource.lookup(self._db,
collection.name,
autocreate=True)
messages = []
feed = feedparser.parse(request.data)
entries = feed.get("entries", [])
entries_by_urn = {entry.get('id'): entry for entry in entries}
identifiers_by_urn, invalid_urns = Identifier.parse_urns(
self._db, entries_by_urn.keys())
messages = list()
for urn in invalid_urns:
messages.append(
OPDSMessage(urn, INVALID_URN.status_code, INVALID_URN.detail))
for urn, identifier in identifiers_by_urn.items():
entry = entries_by_urn[urn]
status = HTTP_OK
description = "Already in catalog"
if identifier not in collection.catalog:
collection.catalog_identifier(identifier)
status = HTTP_CREATED
description = "Successfully added"
message = OPDSMessage(urn, status, description)
# Get a cover if it exists.
image_types = set([Hyperlink.IMAGE, Hyperlink.THUMBNAIL_IMAGE])
images = [
l for l in entry.get("links", [])
if l.get("rel") in image_types
]
links = [
LinkData(image.get("rel"), image.get("href"))
for image in images
]
# Create an edition to hold the title and author. LicensePool.calculate_work
# refuses to create a Work when there's no title, and if we have a title, author
# and language we can attempt to look up the edition in OCLC.
title = entry.get("title") or "Unknown Title"
author = ContributorData(sort_name=(entry.get("author")
or Edition.UNKNOWN_AUTHOR),
roles=[Contributor.PRIMARY_AUTHOR_ROLE])
language = entry.get("dcterms_language")
presentation = PresentationCalculationPolicy(
choose_edition=False,
set_edition_metadata=False,
classify=False,
choose_summary=False,
calculate_quality=False,
choose_cover=False,
regenerate_opds_entries=False,
)
replace = ReplacementPolicy(
presentation_calculation_policy=presentation)
metadata = Metadata(
data_source,
primary_identifier=IdentifierData(identifier.type,
identifier.identifier),
title=title,
language=language,
contributors=[author],
links=links,
)
edition, ignore = metadata.edition(self._db)
metadata.apply(edition, collection, replace=replace)
messages.append(message)
title = "%s Catalog Item Additions for %s" % (collection.protocol,
client.url)
url = self.collection_feed_url("add_with_metadata", collection)
addition_feed = AcquisitionFeed(self._db,
title,
url, [],
VerboseAnnotator,
precomposed_entries=messages)
return feed_response(addition_feed)
class CatalogController(object):
"""A controller to manage a Collection's catalog"""
log = logging.getLogger("Catalog Controller")
# Setting a default updates feed size lower than the Pagination.DEFAULT_SIZE
# of 50. Because the updates feed paginates works and isbns separately,
# this not-quite-half should keep the feed at about the expected size
# overall without impacting non-ISBN collections too much.
UPDATES_SIZE = 35
TIMESTAMP_FORMAT = "%Y-%m-%dT%H:%M:%SZ"
def __init__(self, _db):
self._db = _db
@classmethod
def collection_feed_url(cls,
endpoint,
collection,
page=None,
**param_kwargs):
kw = dict(_external=True,
collection_metadata_identifier=collection.name)
kw.update(param_kwargs)
if page:
kw.update(page.items())
return cdn_url_for(endpoint, **kw)
@classmethod
def add_pagination_links_to_feed(cls, pagination, query, feed, endpoint,
collection, **url_param_kwargs):
"""Adds links for pagination to a given collection's feed."""
def href_for(page):
return cls.collection_feed_url(endpoint,
collection,
page=page,
**url_param_kwargs)
if fast_query_count(query) > (pagination.size + pagination.offset):
feed.add_link_to_feed(feed.feed,
rel="next",
href=href_for(pagination.next_page))
if pagination.offset > 0:
feed.add_link_to_feed(feed.feed,
rel="first",
href=href_for(pagination.first_page))
previous_page = pagination.previous_page
if previous_page:
feed.add_link_to_feed(feed.feed,
rel="previous",
href=href_for(previous_page))
def updates_feed(self, collection_details):
client = authenticated_client_from_request(self._db)
if isinstance(client, ProblemDetail):
return client
collection = collection_from_details(self._db, client,
collection_details)
last_update_time = request.args.get('last_update_time', None)
if last_update_time:
try:
last_update_time = datetime.strptime(last_update_time,
self.TIMESTAMP_FORMAT)
except ValueError, e:
message = 'The timestamp "%s" is not in the expected format (%s)'
return INVALID_INPUT.detailed(
message % (last_update_time, self.TIMESTAMP_FORMAT))
pagination = load_pagination_from_request(
default_size=self.UPDATES_SIZE)
precomposed_entries = []
# Add entries for Works associated with the collection's catalog.
updated_works = collection.works_updated_since(self._db,
last_update_time)
works = pagination.apply(updated_works).all()
annotator = VerboseAnnotator()
works_for_feed = []
for work, licensepool, identifier in works:
entry = work.verbose_opds_entry or work.simple_opds_entry
if entry:
# A cached OPDS entry for this Work already
# exists. annotate it with LicensePool and
# Identifier-specific information. We have to do this
# ourselves because we're asking LookupAcquisitionFeed
# to treat these as precomposed entries, meaning
# they must be complete as-is.
entry = etree.fromstring(entry)
annotator.annotate_work_entry(work, licensepool, None,
identifier, None, entry)
precomposed_entries.append(entry)
else:
# There is no cached OPDS entry. We'll create one later.
works_for_feed.append((work, identifier))
title = "%s Collection Updates for %s" % (collection.protocol,
client.url)
url_params = dict()
if last_update_time:
url_params = dict(last_update_time=last_update_time.strftime(
self.TIMESTAMP_FORMAT))
url = self.collection_feed_url('updates', collection, **url_params)
update_feed = LookupAcquisitionFeed(
self._db,
title,
url,
works_for_feed,
annotator,
precomposed_entries=precomposed_entries)
self.add_pagination_links_to_feed(pagination, updated_works,
update_feed, 'updates', collection,
**url_params)
return feed_response(update_feed)
