donation_recurring_generate.py

# Copyright 2014-2021 Barroux Abbey (http://www.barroux.org)
# Copyright 2014-2021 Akretion France (http://www.akretion.com/)
# @author: Alexis de Lattre <alexis.delattre@akretion.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from odoo import _, api, fields, models
from odoo.exceptions import UserError
from odoo.tools.misc import format_date


class DonationRecurringGenerate(models.TransientModel):
    _name = "donation.recurring.generate"
    _description = "Generate Recurring Donations"
    _rec_name = "date"

    date = fields.Date(required=True, default=fields.Date.context_today)
    payment_ref = fields.Char(string="Payment Reference")
    company_id = fields.Many2one(
        "res.company",
        required=True,
        string="Company",
        default=lambda self: self.env.company,
    )

    @api.model
    def _prepare_donation_default(self, donation):
        default = {
            "donation_date": self.date,
            "source_recurring_id": donation.id,
            "payment_ref": self.payment_ref,
        }
        return default

    def generate(self):
        self.ensure_one()
        doo = self.env["donation.donation"]
        donations = doo.search(
            [
                ("recurring_template", "=", "active"),
                ("company_id", "=", self.company_id.id),
            ]
        )
        new_donation_ids = []
        existing_recur_donations = doo.search(
            [
                ("donation_date", "=", self.date),
                ("source_recurring_id", "!=", False),
                ("company_id", "=", self.company_id.id),
            ]
        )
        if existing_recur_donations:
            raise UserError(
                _("Recurring donations have already been generated for %s.")
                % format_date(self.env, self.date)
            )
        for donation in donations:
            default = self._prepare_donation_default(donation)
            new_donation = donation.copy(default=default)
            new_donation_ids.append(new_donation.id)
        action = self.env.ref("donation.donation_action").sudo().read([])[0]
        action.update(
            {
                "domain": [("id", "in", new_donation_ids)],
                "limit": 500,
            }
        )
        return action