def get_collection(self, resource, query_string, params):
"""
return a collection of objects for the requested resource.
:params: resource - name of the resource to obtain i.e experiments, projects, models, etc.
:params: query_string - graphql string to invoke.
:params: params - variables required to invoke query string in the client.
"""
query = gql(query_string)
singular_resource = lambda resource_name: str(resource_name.title()[
0:-1]) # format resource name to match one of the existing classes
class_name = lambda class_name: getattr(sys.modules[
__name__], class_name) # convert string to class name
collection = self._client.execute(query, params)[resource]
class_to_init = class_name(singular_resource(resource))
collection_objects = []
if not resource == "jobs":
collection_objects = [
class_to_init(self._client, item, self._user_id,
extract_id(item['sk'])) for item in collection
]
return collection_objects
# jobs resource
collection_objects = [
class_to_init(self._upload_client, item, self._user_id,
extract_id(item['pk'])) for item in collection
]
return collection_objects
def get_single(self, resource, query_string, params):
"""
return a single object for the requested resource.
:params: resource - name of the resource to obtain i.e experiments, projects, models, etc.
:params: query_string - graphql string to invoke.
:params: params - variables required to invoke query string in the client.
"""
query = gql(query_string)
class_name = lambda class_name: getattr(sys.modules[__name__],
class_name)
singular = self._client.execute(query, params)[resource][0]
class_to_init = class_name(resource.title())
hash_key = extract_id(singular['pk'])
if resource == "project":
hash_key = extract_id(singular['sk'])
if not resource == "job":
singular_object = class_to_init(self._client, singular,
self._user_id, hash_key)
return singular_object
# job object class is slighty different in design
singular_object = class_to_init(self._upload_client, singular,
self._user_id, hash_key)
return singular_object
def set_project_id(self):
"""
return the project associated with the experiment id
depending if the experiment comes from the get_collection query
or a get_single query the experiment id can be fromn the
sort key or primary key
"""
pk = extract_id(self._attr['pk'])
sk = extract_id(self._attr['sk'])
self._project_id = pk
if pk == self._id:
self._project_id = sk
return