[FIX] Fixed contract code

contract_sale/__manifest__.py

@@ -20,6 +20,7 @@
         'views/contract_line.xml',
         'views/contract_template.xml',
         'views/res_partner_view.xml',
+        'views/sale_order.xml',
     ],
     'license': 'AGPL-3',
     'installable': True,

contract_sale/models/contract.py

@@ -11,10 +11,12 @@ class ContractContract(models.Model):
             _prepare_recurring_invoices_values(date_ref=date_ref)
         return invoices_values
 
+    @api.depends('contract_line_ids')
     def _compute_sale_order_count(self):
         super(ContractContract, self)._compute_sale_order_count()
-        contract_count = self.contract_line_ids.\
-            mapped('sale_order_line_id.order_id.contract_id')
+        contract_count = len(
+            self.contract_line_ids.
+            mapped('sale_order_line_id.order_id.contract_id')) or 0
         self.sale_order_count += contract_count
 
     @api.multi

contract_sale/models/sale_order.py

@@ -7,21 +7,5 @@ class SaleOrder(models.Model):
 
     contract_id = fields.Many2one(
         comodel_name="contract.contract",
-        string="Contract"
+        string="Contract",
     )
-
-    @api.multi
-    def action_confirm(self):
-        res = super(SaleOrder, self).action_confirm()
-        invoice_ids = self.env['account.invoice'].search([
-            ('partner_id', '=', self.partner_id.id),
-            ('old_contract_id', '=', self.contract_id.id),
-            ('state', '=', 'draft')])
-
-        for invoice_id in invoice_ids:
-            for order_line in self.order_line:
-                for invoice_line in invoice_id.invoice_line_ids:
-                    if order_line.product_id.id == invoice_line.product_id.id:
-                        invoice_line.quantity += order_line.product_uom_qty
-        self.action_invoice_create()
-        return res

contract_sale/views/sale_order.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="view_order_form_form_view" model="ir.ui.view">
+        <field name="name">sale.order.form.view</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form"/>
+        <field name="arch" type="xml">
+            <field name="partner_id" position="after">
+                <field name="contract_id" domain="[('partner_id', '=', partner_id)]"/>
+            </field>
+        </field>
+    </record>
+
+</odoo>