def field_group_at_path()

in scripts/schema/finalizer.py [0:0]

• 16 lines of code
• 5 McCabe index (conditional complexity)

def field_group_at_path(dotted_path, fields):
    """Returns the ['fields'] hash at the dotted_path."""
    path = dotted_path.split('.')
    nesting = fields
    for next_field in path:
        field = nesting.get(next_field, None)
        if not field:
            raise ValueError("Field {} not found, failed to find {}".format(dotted_path, next_field))
        nesting = field.get('fields', None)
        if not nesting:
            field_type = field['field_details']['type']
            if field_type in ['object', 'group', 'nested']:
                nesting = field['fields'] = {}
            else:
                raise ValueError("Field {} (type {}) already exists and cannot have nested fields".format(
                    dotted_path, field_type))
    return nesting