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120 | class DatasetStatistics(Statistics):
"""
Retrieve dataset statistics.
"""
schema = statistics_dataset_schema()
def _get_statistics(self, resource_id=None):
"""
Fetch the statistics.
:param resource_id: a resource ID if the stats for only one resource is required
- None retrieves stats for all resources
(optional, default: None)
"""
context = {
'user': toolkit.c.user or toolkit.c.author,
'auth_user_obj': toolkit.c.userobj,
}
if resource_id:
return self._get_resource_statistics(resource_id)
else:
return self._get_all_resources_statistics(context)
@staticmethod
def _get_all_resources_statistics(context):
"""
Get stats for all resources.
:param context: the current context
"""
total = 0
resources = []
package_data_dict = {'limit': 50, 'offset': 0}
while True:
packages = toolkit.get_action('current_package_list_with_resources')(
context, package_data_dict
)
if not packages:
# we've hit all the packages that are available
break
else:
package_data_dict['offset'] += len(packages)
for package in packages:
# only include resources from packages that are public and active
if package['private'] or package['state'] != 'active':
continue
for resource in package.get('resources', []):
if resource['state'] != 'active':
continue
if resource.get('datastore_active', False):
try:
search = toolkit.get_action('datastore_search')(
{}, {'resource_id': resource['id'], 'limit': 0}
)
except (
toolkit.ObjectNotFound,
SearchIndexError,
toolkit.ValidationError,
):
# not every file is ingested into the datastore, ignore
# these errors
continue
resources.append(
{
'pkg_name': package['name'],
'pkg_title': package['title'],
'name': resource['name'],
'id': resource['id'],
'total': search.get('total', 0),
}
)
total += search.get('total', 0)
return {'total': total, 'resources': resources}
def _get_resource_statistics(self, resource_id):
"""
Get stats for an individual resource.
:param resource_id: the ID of the resource to retrieve stats for
"""
try:
resource = toolkit.get_action('resource_show')(
self.context, {'id': resource_id}
)
except toolkit.ObjectNotFound:
toolkit.abort(404, toolkit._('Resource not found'))
except toolkit.NotAuthorized:
toolkit.abort(
401, toolkit._(f'Unauthorized to read resource {resource_id}')
)
else:
# TODO - Add break down over time for SOLR Datasets
search = toolkit.get_action('datastore_search')(
{}, {'resource_id': resource_id, 'limit': 1}
)
return {'resource': resource, 'total': search['total']}
|