[MIG] hr_commission: backport from 13.0

Refactor to use `account.invoice` instead of `account.move`

hr_commission/models/account.py

@@ -0,0 +1,53 @@
+# Part of Hibou Suite Professional. See LICENSE_PROFESSIONAL file for full copyright and licensing details.
+
+from odoo import api, fields, models
+
+
+class AccountInvoice(models.Model):
+    _inherit = 'account.invoice'
+
+    commission_ids = fields.One2many(comodel_name='hr.commission', inverse_name='invoice_id', string='Commissions')
+    commission_count = fields.Integer(string='Number of Commissions', compute='_compute_commission_count')
+
+    @api.depends('state', 'commission_ids')
+    @api.multi
+    def _compute_commission_count(self):
+        for move in self:
+            move.commission_count = len(move.commission_ids)
+        return True
+
+    @api.multi
+    def open_commissions(self):
+        return {
+            'type': 'ir.actions.act_window',
+            'name': 'Invoice Commissions',
+            'res_model': 'hr.commission',
+            'view_mode': 'tree,form',
+            'context': {'search_default_invoice_id': self[0].id}
+        }
+
+    @api.multi
+    def invoice_validate(self):
+        res = super(AccountInvoice, self).invoice_validate()
+        self.env['hr.commission'].invoice_validated(self)
+        return res
+
+    @api.multi
+    def action_invoice_paid(self):
+        res = super(AccountInvoice, self).action_invoice_paid()
+        self.env['hr.commission'].invoice_paid(self)
+        return res
+
+    def amount_for_commission(self):
+        # TODO Should toggle in Config Params
+        if hasattr(self, 'margin') and self.company_id.commission_amount_type == 'on_invoice_margin':
+            sign = -1 if self.type in ['in_refund', 'out_refund'] else 1
+            return self.margin * sign
+        return self.amount_total_company_signed
+
+    @api.multi
+    def action_cancel(self):
+        res = super(AccountInvoice, self).action_cancel()
+        for move in self:
+            move.sudo().commission_ids.unlink()
+        return res