ransack.function module

function.py - Defines built-in functions usable in query expressions.

This module provides a set of predefined utility functions that can be invoked from within query expressions. These functions enable common operations such as determining the length of a value or obtaining the current time.

Functions:

• length(x): Returns the length of a string, list, or IP range/network.

• now(): Returns the current UTC datetime.

These functions are registered in the predefined_functions dictionary and are automatically available during query evaluation.

Example usage in query:

length(some_field) > 3 or now() > 2024-01-01T00:00:00Z