[IMP] - Add recurrence fields to product template and sale order line

product_contract/models/product_template.py

@@ -15,6 +15,30 @@ class ProductTemplate(models.Model):
         comodel_name='account.analytic.contract', string='Contract Template'
     )
 
+    recurring_rule_type = fields.Selection(
+        [
+            ('daily', 'Day(s)'),
+            ('weekly', 'Week(s)'),
+            ('monthly', 'Month(s)'),
+            ('monthlylastday', 'Month(s) last day'),
+            ('yearly', 'Year(s)'),
+        ],
+        default='monthly',
+        string='Recurrence',
+        help="Specify Interval for automatic invoice generation.",
+    )
+    recurring_invoicing_type = fields.Selection(
+        [('pre-paid', 'Pre-paid'), ('post-paid', 'Post-paid')],
+        default='pre-paid',
+        string='Invoicing type',
+        help="Specify if process date is 'from' or 'to' invoicing date",
+    )
+    recurring_interval = fields.Integer(
+        default=1,
+        string='Repeat Every',
+        help="Repeat every (Days/Week/Month/Year)",
+    )
+
     @api.onchange('is_contract')
     def _change_is_contract(self):
         """ Clear the relation to contract_template_id when downgrading

product_contract/models/sale_order.py

@@ -2,12 +2,22 @@
 # Copyright 2017 LasLabs Inc.
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-from odoo import api, models
+from odoo import fields, api, models
 
 
 class SaleOrder(models.Model):
     _inherit = 'sale.order'
 
+    is_contract = fields.Boolean(
+        string='Is a contract', compute="_compute_is_contract"
+    )
+
+    @api.depends('order_line')
+    def _compute_is_contract(self):
+        self.is_contract = any(
+            self.order_line.mapped('is_contract')
+        )
+
     @api.multi
     def action_confirm(self):
         """ If we have a contract in the order, set it up """

product_contract/models/sale_order_line.py

@@ -1,14 +1,57 @@
 # -*- coding: utf-8 -*-
 # Copyright 2017 LasLabs Inc.
+# Copyright 2017 ACSONE SA/NV.
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-from odoo import fields, models
+from odoo import api, fields, models
 
 
 class SaleOrderLine(models.Model):
     _inherit = 'sale.order.line'
 
-    contract_id = fields.Many2one(
-        comodel_name='account.analytic.account',
-        string='Contract'
+    is_contract = fields.Boolean(
+        string='Is a contract', related="product_id.is_contract"
     )
+    contract_id = fields.Many2one(
+        comodel_name='account.analytic.account', string='Contract'
+    )
+    recurring_rule_type = fields.Selection(
+        [
+            ('daily', 'Day(s)'),
+            ('weekly', 'Week(s)'),
+            ('monthly', 'Month(s)'),
+            ('monthlylastday', 'Month(s) last day'),
+            ('yearly', 'Year(s)'),
+        ],
+        default='monthly',
+        string='Recurrence',
+        help="Specify Interval for automatic invoice generation.",
+        copy=False,
+    )
+    recurring_invoicing_type = fields.Selection(
+        [('pre-paid', 'Pre-paid'), ('post-paid', 'Post-paid')],
+        default='pre-paid',
+        string='Invoicing type',
+        help="Specify if process date is 'from' or 'to' invoicing date",
+        copy=False,
+    )
+    recurring_interval = fields.Integer(
+        default=1,
+        string='Repeat Every',
+        help="Repeat every (Days/Week/Month/Year)",
+        copy=False,
+    )
+    date_start = fields.Date(string='Date Start', default=fields.Date.today())
+    date_end = fields.Date(string='Date End', index=True)
+    recurring_next_date = fields.Date(
+        default=fields.Date.today(), copy=False, string='Date of Next Invoice'
+    )
+
+    @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