Get Values: formats values for list template.
            returns [{'col_name':'col_value',....},{'col_name':'col_value',....}]

            :param lst:
                The list of item objects from query
            :param list_columns:
                The list of columns to include

def _get_values(self, lst, list_columns):
        """
            Get Values: formats values for list template.
            returns [{'col_name':'col_value',....},{'col_name':'col_value',....}]

            :param lst:
                The list of item objects from query
            :param list_columns:
                The list of columns to include
        """
        retlst = []
        for item in lst:
            retdict = {}
            for col in list_columns:
                retdict[col] = self._get_attr_value(item, col)
            retlst.append(retdict)
        return retlst