[FIX] - compute recurring_next_date for contract

[IMP] - get contract line default data onchange product_id

contract/models/abstract_contract_line.py

@@ -79,6 +79,7 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
         help="Repeat every (Days/Week/Month/Year)",
         required=True,
     )
+    date_start = fields.Date(string='Date Start')
     recurring_next_date = fields.Date(string='Date of Next Invoice')
 
     is_canceled = fields.Boolean(string="Canceled", default=False)
@@ -204,3 +205,23 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
         vals['price_unit'] = product.price
         self.update(vals)
         return {'domain': domain}
+
+    @api.onchange('product_id')
+    def _onchange_product_id_recurring_info(self):
+        for rec in self:
+            rec.date_start = fields.Date.today()
+            if rec.product_id.is_contract:
+                rec.recurring_rule_type = rec.product_id.recurring_rule_type
+                rec.recurring_invoicing_type = (
+                    rec.product_id.recurring_invoicing_type
+                )
+                rec.recurring_interval = rec.product_id.recurring_interval
+                rec.is_auto_renew = rec.product_id.is_auto_renew
+                rec.auto_renew_interval = rec.product_id.auto_renew_interval
+                rec.auto_renew_rule_type = rec.product_id.auto_renew_rule_type
+                rec.termination_notice_interval = (
+                    rec.product_id.termination_notice_interval
+                )
+                rec.termination_notice_rule_type = (
+                    rec.product_id.termination_notice_rule_type
+                )

contract/models/contract.py

@@ -60,9 +60,9 @@ class AccountAnalyticAccount(models.Model):
     def _compute_recurring_next_date(self):
         for contract in self:
             recurring_next_date = contract.recurring_invoice_line_ids.filtered(
-                'create_invoice_visibility'
+                'recurring_next_date'
             ).mapped('recurring_next_date')
-            if recurring_next_date and all(recurring_next_date):
+            if recurring_next_date:
                 contract.recurring_next_date = min(recurring_next_date)
 
     @api.depends('recurring_invoice_line_ids.create_invoice_visibility')

contract/views/contract_line.xml

@@ -99,8 +99,7 @@
                 <field name="date_start" required="1"/>
                 <field name="date_end"/>
                 <field name="recurring_next_date"
-                       required="1"
-                       attrs="{'invisible': [('create_invoice_visibility', '=', False)]}"/>
+                       required="1"/>
                 <field name="last_date_invoiced"
                        groups="base.group_no_one"/>
                 <field name="create_invoice_visibility"