From d00a054a38b3aaceb41b5eae0de972d5a2d6b401 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thibault=20Delavall=C3=A9e?= <tde@openerp.com>
Date: Tue, 26 Apr 2016 17:48:39 +0200
Subject: [PATCH] [MIGR] stock: stock_production_lot

Production lot model is migrated to new API. No change is performed to code
structure or functional structure. Some code cleaning may be performed when
migrating to simplify the code. Other files may be updated due to the move
towards the new API.
---
 addons/stock/models/stock_production_lot.py | 65 +++++++++------------
 1 file changed, 26 insertions(+), 39 deletions(-)

diff --git a/addons/stock/models/stock_production_lot.py b/addons/stock/models/stock_production_lot.py
index 493e9cc4c4c..03c146aeb0d 100644
--- a/addons/stock/models/stock_production_lot.py
+++ b/addons/stock/models/stock_production_lot.py
@@ -1,51 +1,38 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from openerp.osv import fields, osv
-from openerp.tools.translate import _
+from odoo import api, fields, models, _
 
 
-class stock_production_lot(osv.osv):
+class ProductionLot(models.Model):
     _name = 'stock.production.lot'
     _inherit = ['mail.thread']
     _description = 'Lot/Serial'
-    _columns = {
-        'name': fields.char('Serial Number', required=True, help="Unique Serial Number"),
-        'ref': fields.char('Internal Reference', help="Internal reference number in case it differs from the manufacturer's serial number"),
-        'product_id': fields.many2one('product.product', 'Product', required=True, domain=[('type', 'in', ['product', 'consu'])]),
-        'quant_ids': fields.one2many('stock.quant', 'lot_id', 'Quants', readonly=True),
-        'create_date': fields.datetime('Creation Date'),
-    }
-    _defaults = {
-        'name': lambda x, y, z, c: x.pool.get('ir.sequence').next_by_code(y, z, 'stock.lot.serial'),
-        'product_id': lambda x, y, z, c: c.get('product_id', False),
-    }
+
+    name = fields.Char(
+        'Serial Number', default=lambda self: self.env['ir.sequence'].next_by_code('stock.lot.serial'),
+        required=True, help="Unique Serial Number")
+    ref = fields.Char('Internal Reference', help="Internal reference number in case it differs from the manufacturer's serial number")
+    product_id = fields.Many2one(
+        'product.product', 'Product',
+        domain=[('type', 'in', ['product', 'consu'])], required=True)
+    quant_ids = fields.One2many('stock.quant', 'lot_id', 'Quants', readonly=True)
+    create_date = fields.Datetime('Creation Date')
+
     _sql_constraints = [
         ('name_ref_uniq', 'unique (name, product_id)', 'The combination of serial number and product must be unique !'),
     ]
 
-    def action_traceability(self, cr, uid, ids, context=None):
-        """ It traces the information of lots
-        @param self: The object pointer.
-        @param cr: A database cursor
-        @param uid: ID of the user currently logged in
-        @param ids: List of IDs selected
-        @param context: A standard dictionary
-        @return: A dictionary of values
-        """
-        quant_obj = self.pool.get("stock.quant")
-        quants = quant_obj.search(cr, uid, [('lot_id', 'in', ids)], context=context)
-        moves = set()
-        for quant in quant_obj.browse(cr, uid, quants, context=context):
-            moves |= {move.id for move in quant.history_ids}
-        if moves:
-            return {
-                'domain': "[('id','in',[" + ','.join(map(str, list(moves))) + "])]",
-                'name': _('Traceability'),
-                'view_mode': 'tree,form',
-                'view_type': 'form',
-                'context': {'tree_view_ref': 'stock.view_move_tree'},
-                'res_model': 'stock.move',
-                'type': 'ir.actions.act_window',
-                    }
-        return False
+    @api.multi
+    def action_traceability(self):
+        move_ids = self.mapped('quant_ids').mapped('history_ids').ids
+        if not move_ids:
+            return False
+        return {
+            'domain': [('id', 'in', move_ids)],
+            'name': _('Traceability'),
+            'view_mode': 'tree,form',
+            'view_type': 'form',
+            'context': {'tree_view_ref': 'stock.view_move_tree'},
+            'res_model': 'stock.move',
+            'type': 'ir.actions.act_window'}