def retrieve_consumer_applicability(consumer_criteria, content_types=None):
"""
Query content applicability for consumers matched by a given consumer_criteria, optionally
limiting by content type.
This method returns a list of dictionaries that each have two
keys: 'consumers', and 'applicability'. 'consumers' will index a list of consumer_ids,
for consumers that have the same repository bindings and profiles. 'applicability' will
index a dictionary that will have keys for each content type that is applicable, and the
content type ids will index the applicability data for those content types. For example,
[{'consumers': ['consumer_1', 'consumer_2'],
'applicability': {'content_type_1': ['unit_1', 'unit_3']}},
{'consumers': ['consumer_2', 'consumer_3'],
'applicability': {'content_type_1': ['unit_1', 'unit_2']}}]
:param consumer_ids: A list of consumer ids that the applicability data should be retrieved
against
:type consumer_ids: list
:param content_types: An optional list of content types that the caller wishes to limit the
results to. Defaults to None, which will return data for all types
:type content_types: list
:return: applicability data matching the consumer criteria query
:rtype: list
"""
# We only need the consumer ids
consumer_criteria['fields'] = ['id']
consumer_ids = [c['id'] for c in ConsumerQueryManager.find_by_criteria(consumer_criteria)]
consumer_map = dict([(c, {'profiles': [], 'repo_ids': []}) for c in consumer_ids])
# Fill out the mapping of consumer_ids to profiles, and store the list of profile_hashes
profile_hashes = _add_profiles_to_consumer_map_and_get_hashes(consumer_ids, consumer_map)
# Now add in repo_ids that the consumers are bound to
_add_repo_ids_to_consumer_map(consumer_ids, consumer_map)
# We don't need the list of consumer_ids anymore, so let's free a little RAM
del consumer_ids
# Now lets get all RepoProfileApplicability objects that have the profile hashes for our
# consumers
applicability_map = _get_applicability_map(profile_hashes, content_types)
# We don't need the profile_hashes anymore, so let's free some RAM
del profile_hashes
# Now we need to add consumers who match the applicability data to the applicability_map
_add_consumers_to_applicability_map(consumer_map, applicability_map)
# We don't need the consumer_map anymore, so let's free it up
del consumer_map
# Collate all the entries for the same sets of consumers together
consumer_applicability_map = _get_consumer_applicability_map(applicability_map)
# Free the applicability_map, we don't need it anymore
del applicability_map
# Form the data into the expected output format and return
return _format_report(consumer_applicability_map)
def retrieve_consumer_applicability(consumer_criteria, content_types=None):
"""
Query content applicability for consumers matched by a given consumer_criteria, optionally
limiting by content type.
This method returns a list of dictionaries that each have two
keys: 'consumers', and 'applicability'. 'consumers' will index a list of consumer_ids,
for consumers that have the same repository bindings and profiles. 'applicability' will
index a dictionary that will have keys for each content type that is applicable, and the
content type ids will index the applicability data for those content types. For example,
[{'consumers': ['consumer_1', 'consumer_2'],
'applicability': {'content_type_1': ['unit_1', 'unit_3']}},
{'consumers': ['consumer_2', 'consumer_3'],
'applicability': {'content_type_1': ['unit_1', 'unit_2']}}]
:param consumer_ids: A list of consumer ids that the applicability data should be retrieved
against
:type consumer_ids: list
:param content_types: An optional list of content types that the caller wishes to limit the
results to. Defaults to None, which will return data for all types
:type content_types: list
:return: applicability data matching the consumer criteria query
:rtype: list
"""
# We only need the consumer ids
consumer_criteria['fields'] = ['id']
consumer_ids = [c['id'] for c in ConsumerQueryManager.find_by_criteria(consumer_criteria)]
consumer_map = dict([(c, {'profiles': [], 'repo_ids': []}) for c in consumer_ids])
# Fill out the mapping of consumer_ids to profiles, and store the list of profile_hashes
profile_hashes = _add_profiles_to_consumer_map_and_get_hashes(consumer_ids, consumer_map)
# Now add in repo_ids that the consumers are bound to
_add_repo_ids_to_consumer_map(consumer_ids, consumer_map)
# We don't need the list of consumer_ids anymore, so let's free a little RAM
del consumer_ids
# Now lets get all RepoProfileApplicability objects that have the profile hashes for our
# consumers
applicability_map = _get_applicability_map(profile_hashes, content_types)
# We don't need the profile_hashes anymore, so let's free some RAM
del profile_hashes
# Now we need to add consumers who match the applicability data to the applicability_map
_add_consumers_to_applicability_map(consumer_map, applicability_map)
# We don't need the consumer_map anymore, so let's free it up
del consumer_map
# Collate all the entries for the same sets of consumers together
consumer_applicability_map = _get_consumer_applicability_map(applicability_map)
# Free the applicability_map, we don't need it anymore
del applicability_map
# Form the data into the expected output format and return
return _format_report(consumer_applicability_map)