airflow/models/dagrun.py
def get_previous_scheduled_dagrun(self, session=None):
        """The previous, SCHEDULED DagRun, if there is one"""
        dag = self.get_dag()

        return session.query(DagRun).filter(
            DagRun.dag_id == self.dag_id,
            DagRun.execution_date == dag.previous_schedule(self.execution_date)
        ).first()
def get_previous_scheduled_dagrun(self, session=None):
        dag = self.get_dag()

        return session.query(DagRun).filter(
            DagRun.dag_id == self.dag_id,
            DagRun.execution_date == dag.previous_schedule(self.execution_date)
        ).first()
def get_previous_scheduled_dagrun ( self , session = None ) : dag = self . get_dag ( ) return session . query ( DagRun ) . filter ( DagRun . dag_id == self . dag_id , DagRun . execution_date == dag . previous_schedule ( self . execution_date ) ) . first ( )
The previous, SCHEDULED DagRun, if there is one
The previous SCHEDULED DagRun if there is one