[REF] account: replace workflow by python code

21 files changed, 97 insertions, 161 deletions

diff --git a/addons/account/__openerp__.py b/addons/account/__openerp__.py
index 3be3a3bcccd..477655ac2b6 100644
--- a/addons/account/__openerp__.py
+++ b/addons/account/__openerp__.py
@@ -35,7 +35,6 @@ You could use this simplified accounting in case you work with an (external) acc
         'views/account_end_fy.xml',
         'views/account_invoice_view.xml',
         'data/invoice_action_data.xml',
-        'views/account_invoice_workflow.xml',
         'views/partner_view.xml',
         'views/product_view.xml',
         'views/account_analytic_view.xml',
diff --git a/addons/account/demo/account_invoice_demo.yml b/addons/account/demo/account_invoice_demo.yml
index 52f16f3240d..a925aefa6dd 100644
--- a/addons/account/demo/account_invoice_demo.yml
+++ b/addons/account/demo/account_invoice_demo.yml
@@ -17,7 +17,8 @@
         price_unit: 280.0
         quantity: 5.0
 -
-  !workflow {model: account.invoice, action: invoice_open, ref: demo_invoice_1}
+  !python {model: account.invoice, id: demo_invoice_1}:
+    self.action_invoice_open()
 -
   !record {model: account.invoice, id: demo_invoice_2}:
     company_id: base.main_company
@@ -32,7 +33,8 @@
         price_unit: 25
         quantity: 20
 -
-  !workflow {model: account.invoice, action: invoice_open, ref: demo_invoice_2}
+  !python {model: account.invoice, id: demo_invoice_2}:
+    self.action_invoice_open()
 -
   !record {model: account.invoice, id: demo_invoice_3}:
     company_id: base.main_company
@@ -47,7 +49,8 @@
         price_unit: 15.0
         quantity: 5.0
 -
-  !workflow {model: account.invoice, action: invoice_open, ref: demo_invoice_3}
+  !python {model: account.invoice, id: demo_invoice_3}:
+    self.action_invoice_open()
 -
    Set the context for supplier bills because the 'type' field is readonly in invoice form views, so it value won't be considered by the yaml import
 -
@@ -90,7 +93,7 @@
       if account:
           line_vals['account_id'] = account.id
           self._update('account.invoice.line', 'account', line_vals, 'ceo_wages_line')
-          self.env['account.invoice'].browse(ref('demo_invoice_january_wages')).signal_workflow('invoice_open')
+          self.env['account.invoice'].browse(ref('demo_invoice_january_wages')).action_invoice_open()
 -
   !record {model: account.invoice, id: demo_invoice_equipment_purchase}:
     company_id: base.main_company
@@ -114,7 +117,7 @@
             line_vals['invoice_line_tax_ids'] = [(6, 0, [tax_id])]
           self._update('account.invoice.line', 'account', line_vals, 'coffee_machine_line')
           self.env['account.invoice'].browse(ref('demo_invoice_equipment_purchase'))._onchange_invoice_line_ids()
-          self.env['account.invoice'].browse(ref('demo_invoice_equipment_purchase')).signal_workflow('invoice_open')
+          self.env['account.invoice'].browse(ref('demo_invoice_equipment_purchase')).action_invoice_open()
 -
   !python {model: account.bank.statement.line, id: False} : |
       account = self.env['account.account'].search([
diff --git a/addons/account/models/account_invoice.py b/addons/account/models/account_invoice.py
index 87be174486f..bf4604cd21a 100644
--- a/addons/account/models/account_invoice.py
+++ b/addons/account/models/account_invoice.py
@@ -345,6 +345,17 @@ class AccountInvoice(models.Model):
 
         return invoice
 
+    @api.multi
+    def _write(self, vals):
+        pre_not_reconciled = self.filtered(lambda invoice: not invoice.reconciled)
+        pre_reconciled = self - pre_not_reconciled
+        res = super(AccountInvoice, self)._write(vals)
+        reconciled = self.filtered(lambda invoice: invoice.reconciled)
+        not_reconciled = self - reconciled
+        (reconciled & pre_reconciled).filtered(lambda invoice: invoice.state == 'open').action_invoice_paid()
+        (not_reconciled & pre_not_reconciled).filtered(lambda invoice: invoice.state == 'paid').action_invoice_cancel()
+        return res
+
     @api.model
     def fields_view_get(self, view_id=None, view_type=False, toolbar=False, submenu=False):
         def get_view_id(xid, name):
@@ -428,10 +439,6 @@ class AccountInvoice(models.Model):
         return self.with_context(ctx).write({'invoice_line_ids': []})
 
     @api.multi
-    def confirm_paid(self):
-        return self.write({'state': 'paid'})
-
-    @api.multi
     def unlink(self):
         for invoice in self:
             if invoice.state not in ('draft', 'cancel'):
@@ -517,11 +524,11 @@ class AccountInvoice(models.Model):
             self.date_due = max(line[0] for line in pterm_list)
 
     @api.multi
-    def action_cancel_draft(self):
+    def action_invoice_draft(self):
+        if self.filtered(lambda inv: inv.state != 'cancel'):
+            raise UserError(_("Invoice must be cancelled in order to reset it to draft."))
         # go from canceled state to draft state
         self.write({'state': 'draft', 'date': False})
-        self.delete_workflow()
-        self.create_workflow()
         # Delete former printed invoice
         try:
             report_invoice = self.env['report']._get_report_from_name('account.report_invoice')
@@ -537,6 +544,44 @@ class AccountInvoice(models.Model):
         return True
 
     @api.multi
+    def action_invoice_proforma2(self):
+        if self.filtered(lambda inv: inv.state != 'draft'):
+            raise UserError(_("Invoice must be a draft in order to set it to Pro-forma."))
+        return self.write({'state': 'proforma2'})
+
+    @api.multi
+    def action_invoice_open(self):
+        # lots of duplicate calls to action_invoice_open, so we remove those already open
+        to_open_invoices = self.filtered(lambda inv: inv.state != 'open')
+        if to_open_invoices.filtered(lambda inv: inv.state not in ['proforma2', 'draft']):
+            raise UserError(_("Invoice must be in draft or Pro-forma state in order to validate it."))
+        to_open_invoices.action_date_assign()
+        to_open_invoices.action_move_create()
+        return to_open_invoices.invoice_validate()
+
+    @api.multi
+    def action_invoice_paid(self):
+        # lots of duplicate calls to action_invoice_paid, so we remove those already paid
+        to_pay_invoices = self.filtered(lambda inv: inv.state != 'paid')
+        if to_pay_invoices.filtered(lambda inv: inv.state != 'open'):
+            raise UserError(_('Invoice must be validated in order to set it to register payemnt.'))
+        if to_pay_invoices.filtered(lambda inv: not inv.reconciled):
+            raise UserError(_('You cannot pay an invoice which is partially paid. You need to reconcile payment entries first.'))
+        return to_pay_invoices.write({'state': 'paid'})
+
+    @api.multi
+    def action_invoice_re_open(self):
+        if self.filtered(lambda inv: inv.state != 'paid'):
+            raise UserError(_('Invoice must be paid in order to set it to register payemnt.'))
+        return self.write({'state': 'open'})
+
+    @api.multi
+    def action_invoice_cancel(self):
+        if self.filtered(lambda inv: inv.state not in ['proforma2', 'draft', 'open']):
+            raise UserError(_("Invoice must be in draft or Pro-forma state in order to validate it."))
+        return self.action_cancel()
+
+    @api.multi
     def get_formview_id(self):
         """ Update form view id of action to open the invoice """
         if self.type in ('in_invoice', 'in_refund'):
diff --git a/addons/account/tests/test_account_customer_invoice.py b/addons/account/tests/test_account_customer_invoice.py
index f24b9460cc8..0c559892644 100644
--- a/addons/account/tests/test_account_customer_invoice.py
+++ b/addons/account/tests/test_account_customer_invoice.py
@@ -71,7 +71,7 @@ class TestAccountCustomerInvoice(AccountTestUsers):
         self.assertEquals(self.account_invoice_customer0.state, 'draft')
 
         # I change the state of invoice to "Proforma2" by clicking PRO-FORMA button
-        self.account_invoice_customer0.signal_workflow('invoice_proforma2')
+        self.account_invoice_customer0.action_invoice_proforma2()
 
         # I check that the invoice state is now "Proforma2"
         self.assertEquals(self.account_invoice_customer0.state, 'proforma2')
@@ -80,7 +80,7 @@ class TestAccountCustomerInvoice(AccountTestUsers):
         self.assertEquals(len(self.account_invoice_customer0.move_id), 0)
 
         # I validate invoice by creating on
-        self.account_invoice_customer0.signal_workflow('invoice_open')
+        self.account_invoice_customer0.action_invoice_open()
 
         # I check that the invoice state is "Open"
         self.assertEquals(self.account_invoice_customer0.state, 'open')
diff --git a/addons/account/tests/test_account_supplier_invoice.py b/addons/account/tests/test_account_supplier_invoice.py
index 81a2517f2db..671cfb2dcb0 100644
--- a/addons/account/tests/test_account_supplier_invoice.py
+++ b/addons/account/tests/test_account_supplier_invoice.py
@@ -36,7 +36,7 @@ class TestAccountSupplierInvoice(AccountingTestCase):
         self.assertTrue((invoice.state == 'draft'), "Initially vendor bill state is Draft")
 
         #change the state of invoice to open by clicking Validate button
-        invoice.signal_workflow('invoice_open')
+        invoice.action_invoice_open()
 
         #I cancel the account move which is in posted state and verifies that it gives warning message
         with self.assertRaises(Warning):
diff --git a/addons/account/tests/test_bank_statement_reconciliation.py b/addons/account/tests/test_bank_statement_reconciliation.py
index 56f38fa3e69..0aee2f90811 100644
--- a/addons/account/tests/test_bank_statement_reconciliation.py
+++ b/addons/account/tests/test_bank_statement_reconciliation.py
@@ -66,7 +66,7 @@ class TestBankStatementReconciliation(AccountingTestCase):
             'name': '.',
             'account_id': self.env['account.account'].search([('user_type_id', '=', self.env.ref('account.data_account_type_revenue').id)], limit=1).id,
         })
-        invoice.signal_workflow('invoice_open')
+        invoice.action_invoice_open()
 
         mv_line = None
         for l in invoice.move_id.line_ids:
diff --git a/addons/account/tests/test_payment.py b/addons/account/tests/test_payment.py
index 374ceb9c5f3..d593f4fd8e8 100644
--- a/addons/account/tests/test_payment.py
+++ b/addons/account/tests/test_payment.py
@@ -55,7 +55,7 @@ class TestPayment(AccountingTestCase):
             'name': 'something',
             'account_id': self.account_revenue.id,
         })
-        invoice.signal_workflow('invoice_open')
+        invoice.action_invoice_open()
         return invoice
 
     def reconcile(self, liquidity_aml, amount=0.0, amount_currency=0.0, currency_id=None):
diff --git a/addons/account/tests/test_reconciliation.py b/addons/account/tests/test_reconciliation.py
index ee31cf4a853..d957f7c9f5a 100644
--- a/addons/account/tests/test_reconciliation.py
+++ b/addons/account/tests/test_reconciliation.py
@@ -56,7 +56,7 @@ class TestReconciliation(AccountingTestCase):
         })
 
         #validate invoice
-        invoice.signal_workflow('invoice_open')
+        invoice.action_invoice_open()
         return invoice
 
     def make_payment(self, invoice_record, bank_journal, amount=0.0, amount_currency=0.0, currency_id=None):
@@ -283,7 +283,7 @@ class TestReconciliation(AccountingTestCase):
                 })
             ]
         })
-        invoice.signal_workflow('invoice_open')
+        invoice.action_invoice_open()
         # We create a bank statement with two lines of 1.00 USD each.
         statement = self.acc_bank_stmt_model.create({
             'journal_id': self.bank_journal_usd_id,
diff --git a/addons/account/views/account_invoice_view.xml b/addons/account/views/account_invoice_view.xml
index cfb13ee4ac4..c10018794ea 100644
--- a/addons/account/views/account_invoice_view.xml
+++ b/addons/account/views/account_invoice_view.xml
@@ -217,11 +217,11 @@
             <field name="arch" type="xml">
                 <form string="Vendor Bill">
                 <header>
-                        <button name="invoice_open" states="draft,proforma2" string="Validate" class="oe_highlight" groups="account.group_account_invoice"/>
+                        <button name="action_invoice_open" type="object" states="draft,proforma2" string="Validate" class="oe_highlight" groups="account.group_account_invoice"/>
                         <button name="%(action_account_invoice_payment)d" type="action" states="open" string="Register Payment" groups="account.group_account_invoice" class="oe_highlight"/>
                         <button name="%(action_account_invoice_refund)d" type='action' string='Ask Refund' groups="account.group_account_invoice" attrs="{'invisible': ['|',('type', '=', 'in_refund'),('state','not in',('open','paid'))]}"/>
-                        <button name="invoice_cancel" states="draft,proforma2" string="Cancel Bill" groups="account.group_account_invoice"/>
-                        <button name="action_cancel_draft" states="cancel" string="Set to Draft" type="object" groups="account.group_account_invoice"/>
+                        <button name="action_invoice_cancel" type="object" states="draft,proforma2" string="Cancel Bill" groups="account.group_account_invoice"/>
+                        <button name="action_invoice_draft" states="cancel" string="Set to Draft" type="object" groups="account.group_account_invoice"/>
                     <field name="state" widget="statusbar" statusbar_visible="draft,open,paid" />
                 </header>
                 <div class="alert alert-info" role="alert" style="margin-bottom:0px;" attrs="{'invisible': [('has_outstanding','=',False)]}">
@@ -352,12 +352,12 @@
                     <button name="action_invoice_sent" type="object" string="Send by Email" attrs="{'invisible':['|',('sent','=',False), ('state', '!=', 'open')]}" groups="base.group_user"/>
                     <button name="invoice_print" string="Print Invoice" type="object" attrs="{'invisible':['|',('sent','=',False), ('state', '!=', 'open')]}" groups="base.group_user"/>
                     <button name="%(action_account_invoice_payment)d" type="action" states="open" string="Register Payment" groups="account.group_account_invoice" class="oe_highlight"/>
-                    <button name="invoice_open" states="draft" string="Validate" class="oe_highlight" groups="account.group_account_user"/>
-                    <button name="invoice_open" states="proforma2" string="Validate" groups="account.group_account_user"/>
-                    <button name="invoice_proforma2" states="draft" string="PRO-FORMA" groups="account.group_proforma_invoices"/>
-                    <button name="%(action_account_invoice_refund)d" type='action' string='Refund Invoice' groups="account.group_account_user" attrs="{'invisible': ['|',('type', '=', 'out_refund'), ('state', 'not in', ('open','proforma2','paid'))]}"/>
-                    <button name="invoice_cancel" states="draft,proforma2,open" string="Cancel Invoice" groups="base.group_no_one"/>
-                    <button name="action_cancel_draft" states="cancel" string="Reset to Draft" type="object" groups="account.group_account_user"/>
+                    <button name="action_invoice_open" type="object" states="draft" string="Validate" class="oe_highlight" groups="base.group_account_user"/>
+                    <button name="action_invoice_open" type="object" states="proforma2" string="Validate" groups="base.group_account_user"/>
+                    <button name="action_invoice_proforma2" type="object" states="draft" string="PRO-FORMA" groups="account.group_proforma_invoices"/>
+                    <button name="%(action_account_invoice_refund)d" type='action' string='Refund Invoice' groups="base.group_account_user" attrs="{'invisible': ['|',('type', '=', 'out_refund'), ('state', 'not in', ('open','proforma2','paid'))]}"/>
+                    <button name="action_invoice_cancel" type="object" states="draft,proforma2,open" string="Cancel Invoice" groups="base.group_no_one"/>
+                    <button name="action_invoice_draft" states="cancel" string="Reset to Draft" type="object" groups="base.group_account_user"/>
                     <field name="state" widget="statusbar" nolabel="1" statusbar_visible="draft,open,paid"/>
                 </header>
                 <div class="alert alert-info" role="alert" style="margin-bottom:0px;" attrs="{'invisible': [('has_outstanding','=',False)]}">
diff --git a/addons/account/views/account_invoice_workflow.xml b/addons/account/views/account_invoice_workflow.xml
deleted file mode 100644
index b5e5e3a1948..00000000000
--- a/addons/account/views/account_invoice_workflow.xml
+++ /dev/null
@@ -1,113 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<odoo>
-    <data>
-
-        <record id="wkf" model="workflow">
-            <field name="name">account.invoice.basic</field>
-            <field name="osv">account.invoice</field>
-            <field name="on_create">True</field>
-        </record>
-
-        <record id="act_draft" model="workflow.activity">
-            <field name="wkf_id" ref="wkf"/>
-            <field name="flow_start">True</field>
-            <field name="name">draft</field>
-        </record>
-        <record id="act_proforma2" model="workflow.activity">
-            <field name="wkf_id" ref="wkf"/>
-            <field name="name">proforma2</field>
-            <field name="action">write({'state':'proforma2'})</field>
-            <field name="kind">function</field>
-        </record>
-        <record id="act_open" model="workflow.activity">
-            <field name="wkf_id" ref="wkf"/>
-            <field name="name">open</field>
-            <field name="action">action_date_assign()
-action_move_create()
-invoice_validate()</field>
-            <field name="kind">function</field>
-        </record>
-        <record model="workflow.activity" id="act_open_test">
-            <field name="wkf_id" ref="wkf"/>
-            <field name="name">re-open</field>
-            <field name="action">write({'state':'open'})</field>
-            <field name="kind">function</field>
-        </record>
-        <record id="act_paid" model="workflow.activity">
-            <field name="wkf_id" ref="wkf"/>
-            <field name="name">paid</field>
-            <!--<field name="flow_stop">True</field>-->
-            <field name="action">confirm_paid()</field>
-            <field name="kind">function</field>
-            <field name="signal_send">subflow.paid</field>
-        </record>
-        <record id="act_cancel" model="workflow.activity">
-            <field name="wkf_id" ref="wkf"/>
-            <field name="name">cancel</field>
-            <field name="flow_stop">True</field>
-            <field name="action">action_cancel()
-write({'state':'cancel'})</field>
-            <field name="kind">function</field>
-        </record>
-
-        <record id="t4" model="workflow.transition">
-            <field name="act_from" ref="act_draft"/>
-            <field name="act_to" ref="act_open"/>
-            <field name="signal">invoice_open</field>
-        </record>
-        <record id="t8" model="workflow.transition">
-            <field name="act_from" ref="act_open"/>
-            <field name="act_to" ref="act_paid"/>
-            <field name="trigger_model"/>
-            <field name="trigger_expr_id"/>
-            <field name="condition">reconciled</field>
-        </record>
-        <record id="t9" model="workflow.transition">
-            <field name="act_from" ref="act_draft"/>
-            <field name="act_to" ref="act_cancel"/>
-            <field name="signal">invoice_cancel</field>
-        </record>
-        <record id="t12" model="workflow.transition">
-            <field name="act_from" ref="act_open"/>
-            <field name="act_to" ref="act_cancel"/>
-            <field name="signal">invoice_cancel</field>
-        </record>
-        <record id="t13" model="workflow.transition">
-            <field name="act_from" ref="act_paid"/>
-            <field name="act_to" ref="act_open_test"/>
-            <field name="signal"/>
-            <field name="condition">not reconciled</field>
-        </record>
-        <record id="t14" model="workflow.transition">
-            <field name="act_from" ref="act_open_test"/>
-            <field name="act_to" ref="act_cancel"/>
-            <field name="signal">invoice_cancel</field>
-        </record>
-
-        <record id="open_test_to_paid" model="workflow.transition">
-            <field name="act_from" ref="act_open_test"/>
-            <field name="act_to" ref="act_paid"/>
-            <field name="trigger_model"/>
-            <field name="trigger_expr_id"/>
-            <field name="condition">reconciled</field>
-        </record>
-
-        <record id="draft_to_pro2" model="workflow.transition">
-            <field name="act_from" ref="account.act_draft"/>
-            <field name="act_to" ref="act_proforma2"/>
-            <field name="signal">invoice_proforma2</field>
-        </record>
-
-        <record id="pro2_to_open" model="workflow.transition">
-            <field name="act_from" ref="act_proforma2"/>
-            <field name="act_to" ref="account.act_open"/>
-            <field name="signal">invoice_open</field>
-        </record>
-
-        <record id="pro2_to_cancel" model="workflow.transition">
-            <field name="act_from" ref="act_proforma2"/>
-            <field name="act_to" ref="account.act_cancel"/>
-            <field name="signal">invoice_cancel</field>
-        </record>
-    </data>
-</odoo>
diff --git a/addons/account/views/account_unit_test.xml b/addons/account/views/account_unit_test.xml
index 3991ce9ffcc..5a176e58ceb 100644
--- a/addons/account/views/account_unit_test.xml
+++ b/addons/account/views/account_unit_test.xml
@@ -44,7 +44,7 @@
             <test expr="sum([l.price_subtotal for l in invoice_line_ids]) == amount_untaxed"/>
         </assert>
 
-        <workflow action="invoice_open" model="account.invoice" ref="test_invoice_1"/>
+        <function model="account.invoice" name="action_invoice_open" eval="[[ref('test_invoice_1')]]"/>
 
         <assert id="test_invoice_1" model="account.invoice" string="Test invoice 1 is now open">
             <test expr="state">open</test>
diff --git a/addons/account/wizard/account_invoice_refund.py b/addons/account/wizard/account_invoice_refund.py
index 031999d8042..a2b6a240ad9 100644
--- a/addons/account/wizard/account_invoice_refund.py
+++ b/addons/account/wizard/account_invoice_refund.py
@@ -71,7 +71,7 @@ class AccountInvoiceRefund(models.TransientModel):
                             to_reconcile_ids.setdefault(line.account_id.id, []).append(line.id)
                         if line.reconciled:
                             line.remove_move_reconcile()
-                    refund.signal_workflow('invoice_open')
+                    refund.action_invoice_open()
                     for tmpline in refund.move_id.line_ids:
                         if tmpline.account_id.id == inv.account_id.id:
                             to_reconcile_lines += tmpline
diff --git a/addons/account/wizard/account_invoice_state.py b/addons/account/wizard/account_invoice_state.py
index e631bab8348..025df465a57 100644
--- a/addons/account/wizard/account_invoice_state.py
+++ b/addons/account/wizard/account_invoice_state.py
@@ -19,7 +19,7 @@ class AccountInvoiceConfirm(models.TransientModel):
         for record in self.env['account.invoice'].browse(active_ids):
             if record.state not in ('draft', 'proforma', 'proforma2'):
                 raise UserError(_("Selected invoice(s) cannot be confirmed as they are not in 'Draft' or 'Pro-Forma' state."))
-            record.signal_workflow('invoice_open')
+            record.action_invoice_open()
         return {'type': 'ir.actions.act_window_close'}
 
 
@@ -40,5 +40,5 @@ class AccountInvoiceCancel(models.TransientModel):
         for record in self.env['account.invoice'].browse(active_ids):
             if record.state in ('cancel', 'paid'):
                 raise UserError(_("Selected invoice(s) cannot be cancelled as they are already in 'Cancelled' or 'Done' state."))
-            record.signal_workflow('invoice_cancel')
+            record.action_invoice_cancel()
         return {'type': 'ir.actions.act_window_close'}
diff --git a/addons/account_cancel/views/account_views.xml b/addons/account_cancel/views/account_views.xml
index 550cee2dd6f..41e8371efe1 100644
--- a/addons/account_cancel/views/account_views.xml
+++ b/addons/account_cancel/views/account_views.xml
@@ -16,8 +16,8 @@
             <field name="model">account.invoice</field>
             <field name="inherit_id" ref="account.invoice_form"/>
             <field name="arch" type="xml">
-                <xpath expr="//button[@name='invoice_cancel']" position="replace">
-                    <button name="invoice_cancel" states="draft,proforma2,sale,open" string="Cancel Invoice" groups="account.group_account_invoice"/>
+                <xpath expr="//button[@name='action_invoice_cancel']" position="replace">
+                    <button name="action_invoice_cancel" type="object" states="draft,proforma2,open" string="Cancel Invoice" groups="account.group_account_invoice"/>
                 </xpath>
             </field>
         </record>
@@ -27,8 +27,8 @@
             <field name="model">account.invoice</field>
             <field name="inherit_id" ref="account.invoice_supplier_form"/>
             <field name="arch" type="xml">
-                <xpath expr="//button[@name='invoice_cancel']" position="replace">
-                    <button name="invoice_cancel" states="draft,proforma2,sale,open" string="Cancel Invoice" groups="account.group_account_invoice"/>
+                <xpath expr="//button[@name='action_invoice_cancel']" position="replace">
+                    <button name="action_invoice_cancel" type="object" states="draft,proforma2,open" string="Cancel Invoice" groups="account.group_account_invoice"/>
                 </xpath>
             </field>
         </record>
diff --git a/addons/delivery/tests/test_delivery_stock_move.py b/addons/delivery/tests/test_delivery_stock_move.py
index 85646aa6575..e03043e52a3 100644
--- a/addons/delivery/tests/test_delivery_stock_move.py
+++ b/addons/delivery/tests/test_delivery_stock_move.py
@@ -53,11 +53,11 @@ class StockMoveInvoice(AccountingTestCase):
         # I confirm the invoice
 
         self.invoice = self.sale_prepaid.invoice_ids
-        self.invoice.signal_workflow('invoice_open')
+        self.invoice.action_invoice_open()
 
         # I pay the invoice.
         self.invoice = self.sale_prepaid.invoice_ids
-        self.invoice.signal_workflow('invoice_open')
+        self.invoice.action_invoice_open()
         self.journal = self.AccountJournal.search([('type', '=', 'cash'), ('company_id', '=', self.sale_prepaid.company_id.id)], limit=1)
         self.invoice.pay_and_reconcile(self.journal, self.invoice.amount_total)
 
diff --git a/addons/membership/tests/test_membership.py b/addons/membership/tests/test_membership.py
index 797ef5d7926..d59bc0763ba 100644
--- a/addons/membership/tests/test_membership.py
+++ b/addons/membership/tests/test_membership.py
@@ -44,7 +44,7 @@ class TestMembership(TestMembershipCommon):
             'membership: new membership should be in waiting state')
 
         # the invoice is open -> customer goes to invoiced status
-        invoice.signal_workflow('invoice_open')
+        invoice.action_invoice_open()
         self.assertEqual(
             self.partner_1.membership_state, 'invoiced',
             'membership: after opening the invoice, customer should be in invoiced status')
@@ -77,6 +77,6 @@ class TestMembership(TestMembershipCommon):
         invoice = self.env['account.invoice'].search([('partner_id', '=', self.partner_1.id)], limit=1)
 
         # the invoice is canceled -> membership state of the customer goes to canceled
-        invoice.signal_workflow('invoice_cancel')
+        invoice.action_invoice_cancel()
         self.assertEqual(invoice.state, 'cancel')
         self.assertEqual(self.partner_1.membership_state, 'canceled')
diff --git a/addons/point_of_sale/models/pos_order.py b/addons/point_of_sale/models/pos_order.py
index 02f74c27b14..8bca47f7b5a 100644
--- a/addons/point_of_sale/models/pos_order.py
+++ b/addons/point_of_sale/models/pos_order.py
@@ -460,7 +460,9 @@ class PosOrder(models.Model):
 
             new_invoice.with_context(local_context).sudo().compute_taxes()
             order.sudo().write({'state': 'invoiced'})
-            new_invoice.sudo().signal_workflow('validate')
+            # this workflow signal didn't exist on account.invoice -> should it have been 'invoice_open' ? (and now method .action_invoice_open())
+            # shouldn't the created invoice be marked as paid, seing the customer paid in the POS?
+            # new_invoice.sudo().signal_workflow('validate')
 
         if not Invoice:
             return {}
@@ -515,7 +517,7 @@ class PosOrder(models.Model):
 
             if to_invoice:
                 pos_order.action_pos_order_invoice()
-                pos_order.invoice_id.sudo().signal_workflow('invoice_open')
+                pos_order.invoice_id.sudo().action_invoice_open()
         return order_ids
 
     def test_paid(self):
diff --git a/addons/sale/models/account_invoice.py b/addons/sale/models/account_invoice.py
index d195e194714..673f213609a 100644
--- a/addons/sale/models/account_invoice.py
+++ b/addons/sale/models/account_invoice.py
@@ -41,8 +41,8 @@ class AccountInvoice(models.Model):
         self.partner_shipping_id = addr and addr.get('delivery')
 
     @api.multi
-    def confirm_paid(self):
-        res = super(AccountInvoice, self).confirm_paid()
+    def action_invoice_paid(self):
+        res = super(AccountInvoice, self).action_invoice_paid()
         todo = set()
         for invoice in self:
             for line in invoice.invoice_line_ids:
diff --git a/addons/sale/tests/test_sale_order.py b/addons/sale/tests/test_sale_order.py
index e8e9d6c4b98..fdbefe40d80 100644
--- a/addons/sale/tests/test_sale_order.py
+++ b/addons/sale/tests/test_sale_order.py
@@ -130,7 +130,7 @@ class TestSaleOrder(TestSale):
             'currency_id': company.currency_id.id,
         }
         inv = self.env['account.invoice'].create(invoice_vals)
-        inv.signal_workflow('invoice_open')
+        inv.action_invoice_open()
         sol = so.order_line.filtered(lambda l: l.product_id == serv_cost)
         self.assertTrue(sol, 'Sale: cost invoicing does not add lines when confirming vendor invoice')
         self.assertTrue(sol.price_unit == 160 and sol.qty_delivered == 2 and sol.product_uom_qty == sol.qty_invoiced == 0, 'Sale: line is wrong after confirming vendor invoice')
diff --git a/addons/sale_stock/tests/test_sale_stock.py b/addons/sale_stock/tests/test_sale_stock.py
index f3c26ea1db2..8f9c887d78e 100644
--- a/addons/sale_stock/tests/test_sale_stock.py
+++ b/addons/sale_stock/tests/test_sale_stock.py
@@ -154,7 +154,7 @@ class TestSaleStock(TestSale):
         self.assertEqual(len(inv_1_id), 1, 'Sale Stock: only one invoice instead of "%s" should be created' % len(inv_1_id))
         self.inv_1 = self.env['account.invoice'].browse(inv_1_id)
         self.assertEqual(self.inv_1.amount_untaxed, self.inv_1.amount_untaxed, 'Sale Stock: amount in SO and invoice should be the same')
-        self.inv_1.signal_workflow('invoice_open')
+        self.inv_1.action_invoice_open()
 
         # Create return picking
         StockReturnPicking = self.env['stock.return.picking']
diff --git a/addons/website_portal_sale/models/payment.py b/addons/website_portal_sale/models/payment.py
index 8170cc37139..d52085ee8f4 100644
--- a/addons/website_portal_sale/models/payment.py
+++ b/addons/website_portal_sale/models/payment.py
@@ -22,7 +22,7 @@ class PaymentTransaction(models.Model):
             _logger.info('<%s> transaction completed, auto-generated invoice %s (ID %s) for %s (ID %s)',
                          acquirer_name, created_invoice.name, created_invoice.id, tx.sale_order_id.name, tx.sale_order_id.id)
 
-            created_invoice.signal_workflow('invoice_open')
+            created_invoice.action_invoice_open()
             if tx.acquirer_id.journal_id:
                 created_invoice.pay_and_reconcile(tx.acquirer_id.journal_id, pay_amount=created_invoice.amount_total)
                 if created_invoice.payment_ids: