def get_dag_dependencies(cls,
session: Session = None
) -> Dict[str, List['DagDependency']]:
"""
Get the dependencies between DAGs
:param session: ORM Session
:type session: Session
"""
if session.bind.dialect.name in ["sqlite", "mysql"]:
query = session.query(
cls.dag_id,
func.json_extract(cls.data, "$.dag.dag_dependencies"))
iterator = ((dag_id, json.loads(deps_data) if deps_data else [])
for dag_id, deps_data in query)
elif session.bind.dialect.name == "mssql":
query = session.query(
cls.dag_id, func.json_query(cls.data,
"$.dag.dag_dependencies"))
iterator = ((dag_id, json.loads(deps_data) if deps_data else [])
for dag_id, deps_data in query)
else:
iterator = session.query(
cls.dag_id,
func.json_extract_path(cls.data, "dag", "dag_dependencies"))
return {
dag_id: [DagDependency(**d) for d in (deps_data or [])]
for dag_id, deps_data in iterator
}
def get_dag_dependencies(cls,
session: Session = None
) -> Dict[str, List['DagDependency']]:
"""
Get the dependencies between DAGs
:param session: ORM Session
:type session: Session
"""
dependencies = {}
if session.bind.dialect.name in ["sqlite", "mysql"]:
for row in session.query(
cls.dag_id,
func.json_extract(cls.data,
"$.dag.dag_dependencies")).all():
dependencies[row[0]] = [
DagDependency(**d) for d in json.loads(row[1])
]
else:
for row in session.query(
cls.dag_id,
func.json_extract_path(cls.data, "dag",
"dag_dependencies")).all():
dependencies[row[0]] = [DagDependency(**d) for d in row[1]]
return dependencies