membership_prorate_variable_period

Purpose

This module enables correct prorating of membership fees for variable period memberships in Odoo.

Features

membership: Supports prorating for weekly, monthly, and yearly membership periods.
membership: Calculates the theoretical membership period starting from the beginning of the natural period that includes the invoice date.
membership: Prevents prorating for daily periods.
account.move.line: Overrides membership interval calculation for variable periods.
product.template: Overrides next membership date computation for variable periods.