airflow/utils/operator_helpers.py
def context_to_airflow_vars(context, in_env_var_format=False):
    """
    Given a context, this function provides a dictionary of values that can be used to
    externally reconstruct relations between dags, dag_runs, tasks and task_instances.
    Default to abc.def.ghi format and can be made to ABC_DEF_GHI format if
    in_env_var_format is set to True.

    :param context: The context for the task_instance of interest.
    :type context: dict
    :param in_env_var_format: If returned vars should be in ABC_DEF_GHI format.
    :type in_env_var_format: bool
    :return: task_instance context as dict.
    """
    params = dict()
    if in_env_var_format:
        name_format = 'env_var_format'
    else:
        name_format = 'default'
    task_instance = context.get('task_instance')
    if task_instance and task_instance.dag_id:
        params[AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_DAG_ID'][
            name_format]] = task_instance.dag_id
    if task_instance and task_instance.task_id:
        params[AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_TASK_ID'][
            name_format]] = task_instance.task_id
    if task_instance and task_instance.execution_date:
        params[
            AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_EXECUTION_DATE'][
                name_format]] = task_instance.execution_date.isoformat()
    dag_run = context.get('dag_run')
    if dag_run and dag_run.run_id:
        params[AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_DAG_RUN_ID'][
            name_format]] = dag_run.run_id
    return params
def context_to_airflow_vars(context, in_env_var_format=False):
    params = dict()
    if in_env_var_format:
        name_format = 'env_var_format'
    else:
        name_format = 'default'
    task_instance = context.get('task_instance')
    if task_instance and task_instance.dag_id:
        params[AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_DAG_ID'][
            name_format]] = task_instance.dag_id
    if task_instance and task_instance.task_id:
        params[AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_TASK_ID'][
            name_format]] = task_instance.task_id
    if task_instance and task_instance.execution_date:
        params[
            AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_EXECUTION_DATE'][
                name_format]] = task_instance.execution_date.isoformat()
    dag_run = context.get('dag_run')
    if dag_run and dag_run.run_id:
        params[AIRFLOW_VAR_NAME_FORMAT_MAPPING['AIRFLOW_CONTEXT_DAG_RUN_ID'][
            name_format]] = dag_run.run_id
    return params
def context_to_airflow_vars ( context , in_env_var_format = False ) : params = dict ( ) if in_env_var_format : name_format = 'env_var_format' else : name_format = 'default' task_instance = context . get ( 'task_instance' ) if task_instance and task_instance . dag_id : params [ AIRFLOW_VAR_NAME_FORMAT_MAPPING [ 'AIRFLOW_CONTEXT_DAG_ID' ] [ name_format ] ] = task_instance . dag_id if task_instance and task_instance . task_id : params [ AIRFLOW_VAR_NAME_FORMAT_MAPPING [ 'AIRFLOW_CONTEXT_TASK_ID' ] [ name_format ] ] = task_instance . task_id if task_instance and task_instance . execution_date : params [ AIRFLOW_VAR_NAME_FORMAT_MAPPING [ 'AIRFLOW_CONTEXT_EXECUTION_DATE' ] [ name_format ] ] = task_instance . execution_date . isoformat ( ) dag_run = context . get ( 'dag_run' ) if dag_run and dag_run . run_id : params [ AIRFLOW_VAR_NAME_FORMAT_MAPPING [ 'AIRFLOW_CONTEXT_DAG_RUN_ID' ] [ name_format ] ] = dag_run . run_id return params
Given a context, this function provides a dictionary of values that can be used to
    externally reconstruct relations between dags, dag_runs, tasks and task_instances.
    Default to abc.def.ghi format and can be made to ABC_DEF_GHI format if
    in_env_var_format is set to True.

    :param context: The context for the task_instance of interest.
    :type context: dict
    :param in_env_var_format: If returned vars should be in ABC_DEF_GHI format.
    :type in_env_var_format: bool
    :return: task_instance context as dict.
Given a context this function provides a dictionary of values that can be used to externally reconstruct relations between dags dag_runs tasks and task_instances . Default to abc . def . ghi format and can be made to ABC_DEF_GHI format if in_env_var_format is set to True .