def first_not_null()

in o2a/o2a_libs/src/o2a_lib/functions.py [0:0]

• 4 lines of code
• 3 McCabe index (conditional complexity)

def first_not_null(str_one, str_two):
    """
    It returns the first not null value, or null if both are null.

    Note that if the output of this function is null and it is used as string,
    the EL library converts it to an empty string. This is the common behavior
    when using firstNotNull() in node configuration sections.
    """
    if str_one:
        return str_one
    return str_two if str_two else ""