first commit

modules/stock_product_location/product.py

@@ -0,0 +1,79 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.model import fields
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Eval
+
+
+class Template(metaclass=PoolMeta):
+    __name__ = 'product.template'
+    locations = fields.One2Many('stock.product.location', 'template',
+        "Default Locations",
+        states={
+            'invisible': ~Eval('type').in_(['goods', 'assets']),
+            })
+
+    @classmethod
+    def copy(cls, templates, default=None):
+        pool = Pool()
+        ProductLocation = pool.get('stock.product.location')
+        if default is None:
+            default = {}
+        else:
+            default = default.copy()
+
+        copy_locations = 'locations' not in default
+        default.setdefault('locations', None)
+        new_templates = super().copy(templates, default)
+        if copy_locations:
+            old2new = {}
+            to_copy = []
+            for template, new_template in zip(templates, new_templates):
+                to_copy.extend(l for l in template.locations if not l.product)
+                old2new[template.id] = new_template.id
+            if to_copy:
+                ProductLocation.copy(to_copy, {
+                        'template': lambda d: old2new[d['template']],
+                        })
+        return new_templates
+
+
+class Product(metaclass=PoolMeta):
+    __name__ = 'product.product'
+    locations = fields.One2Many('stock.product.location', 'product',
+        "Default Locations",
+        domain=[
+            ('template', '=', Eval('template', -1)),
+            ],
+        states={
+            'invisible': ~Eval('type').in_(['goods', 'assets']),
+            })
+
+    @classmethod
+    def copy(cls, products, default=None):
+        pool = Pool()
+        ProductLocation = pool.get('stock.product.location')
+        if default is None:
+            default = {}
+        else:
+            default = default.copy()
+
+        copy_locations = 'locations' not in default
+        if 'template' in default:
+            default.setdefault('locations', None)
+        new_products = super().copy(products, default)
+        if 'template' in default and copy_locations:
+            template2new = {}
+            product2new = {}
+            to_copy = []
+            for product, new_product in zip(products, new_products):
+                if product.locations:
+                    to_copy.extend(product.locations)
+                    template2new[product.template.id] = new_product.template.id
+                    product2new[product.id] = new_product.id
+            if to_copy:
+                ProductLocation.copy(to_copy, {
+                        'product': lambda d: product2new[d['product']],
+                        'template': lambda d: template2new[d['template']],
+                        })
+        return new_products