[IMP] - Onchange contract product on contract contract and contract template

product_contract/models/__init__.py

@@ -2,6 +2,7 @@
 # Copyright 2017 LasLabs Inc.
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
+from . import abstract_contract_line
 from . import contract_line
 from . import product_template
 from . import sale_order

product_contract/models/abstract_contract_line.py

@@ -0,0 +1,18 @@
+# Copyright 2018 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, models, fields
+
+
+class AccountAbstractAnalyticContractLine(models.AbstractModel):
+    _inherit = 'account.abstract.analytic.contract.line'
+
+    @api.onchange('product_id')
+    def onchange_product(self):
+        if self.product_id.is_contract:
+            self.recurring_rule_type = self.product_id.recurring_rule_type
+            self.recurring_invoicing_type = (
+                self.product_id.recurring_invoicing_type
+            )
+            self.recurring_interval = self.product_id.recurring_interval
+            self.date_start = fields.Date.today()