create monthly recurring membership lines

membership_monthly_invoicing/models/res_config_settings.py

@@ -0,0 +1,17 @@
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields
+from odoo import models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = "res.config.settings"
+
+    membership_monthly_invoicing_enabled = fields.Boolean(
+        string="Automatic monthly membership invoicing",
+        config_parameter="membership_monthly_invoicing.enabled",
+        default=True,
+        help="When enabled, a scheduled action creates a draft membership "
+        "invoice each month for every active member, copying the fee from "
+        "their last membership line.",
+    )