From 8a56787cbc6a94f462e7bf7da5de925d08b0c588 Mon Sep 17 00:00:00 2001
From: "Adrien Peiffer (ACSONE)" <adrien.peiffer@acsone.eu>
Date: Wed, 22 Apr 2015 13:02:24 +0200
Subject: [PATCH] [IMP] Port account_move_line.py on new API

---
 .../models/account_move_line.py               | 40 ++++++++-----------
 1 file changed, 16 insertions(+), 24 deletions(-)

diff --git a/account_banking_payment_export/models/account_move_line.py b/account_banking_payment_export/models/account_move_line.py
index 75c201836..e7c2bdc3d 100644
--- a/account_banking_payment_export/models/account_move_line.py
+++ b/account_banking_payment_export/models/account_move_line.py
@@ -19,32 +19,27 @@
 #
 ##############################################################################
 
-from openerp.osv import orm, fields
+from openerp import models, fields, api
 
 
-class AccountMoveLine(orm.Model):
+class AccountMoveLine(models.Model):
     _inherit = 'account.move.line'
 
-    def _get_journal_entry_ref(self, cr, uid, ids, name, args, context=None):
-        res = {}
-        for record in self.browse(cr, uid, ids, context=context):
-            res[record.id] = record.move_id.name
-            if record.move_id.state == 'draft':
-                if record.invoice.id:
-                    res[record.id] = record.invoice.number
-                else:
-                    res[record.id] = '*' + str(record.move_id.id)
+    @api.one
+    def _get_journal_entry_ref(self):
+        if self.move_id.state == 'draft':
+            if self.invoice.id:
+                self.journal_entry_ref = self.invoice.number
             else:
-                res[record.id] = record.move_id.name
-        return res
+                self.journal_entry_ref = '*' + str(self.move_id.id)
+        else:
+            self.journal_entry_ref = self.move_id.name
 
-    _columns = {
-        'journal_entry_ref': fields.function(_get_journal_entry_ref,
-                                             string='Journal Entry Ref',
-                                             type="char")
-    }
+    journal_entry_ref = fields.Char(compute=_get_journal_entry_ref,
+                                    string='Journal Entry Ref')
 
-    def get_balance(self, cr, uid, ids, context=None):
+    @api.multi
+    def get_balance(self):
         """
         Return the balance of any set of move lines.
 
@@ -52,9 +47,6 @@ class AccountMoveLine(orm.Model):
         returns the account balance that the move line applies to.
         """
         total = 0.0
-        if not ids:
-            return total
-        for line in self.read(
-                cr, uid, ids, ['debit', 'credit'], context=context):
-            total += (line['debit'] or 0.0) - (line['credit'] or 0.0)
+        for line in self:
+            total += (line.debit or 0.0) - (line.credit or 0.0)
         return total