first commit

modules/account_asset/product.py

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+# 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.modules.account_product.product import (
+    account_used, template_property)
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Eval
+
+
+class Category(metaclass=PoolMeta):
+    __name__ = 'product.category'
+    account_depreciation = fields.MultiValue(fields.Many2One('account.account',
+            'Account Depreciation', domain=[
+                ('type.fixed_asset', '=', True),
+                ('company', '=', Eval('context', {}).get('company', -1)),
+                ],
+            states={
+                'invisible': (~Eval('context', {}).get('company')
+                    | Eval('account_parent')
+                    | ~Eval('accounting', False)),
+                }))
+    account_asset = fields.MultiValue(fields.Many2One('account.account',
+            'Account Asset',
+            domain=[
+                ('type.fixed_asset', '=', True),
+                ('company', '=', Eval('context', {}).get('company', -1)),
+                ],
+            states={
+                'invisible': (~Eval('context', {}).get('company')
+                    | Eval('account_parent')
+                    | ~Eval('accounting', False)),
+                }))
+
+    @classmethod
+    def multivalue_model(cls, field):
+        pool = Pool()
+        if field in {'account_depreciation', 'account_asset'}:
+            return pool.get('product.category.account')
+        return super().multivalue_model(field)
+
+    @property
+    @account_used('account_depreciation')
+    def account_depreciation_used(self):
+        pass
+
+    @property
+    @account_used('account_asset')
+    def account_asset_used(self):
+        pass
+
+    @fields.depends(
+        'accounting',
+        'account_depreciation',
+        'account_asset')
+    def on_change_accounting(self):
+        super().on_change_accounting()
+        if not self.accounting:
+            self.account_depreciation = None
+            self.account_asset = None
+
+
+class CategoryAccount(metaclass=PoolMeta):
+    __name__ = 'product.category.account'
+    account_depreciation = fields.Many2One(
+        'account.account', "Account Depreciation",
+        domain=[
+            ('type.fixed_asset', '=', True),
+            ('company', '=', Eval('company', -1)),
+            ])
+    account_asset = fields.Many2One(
+        'account.account', "Account Asset",
+        domain=[
+            ('type.fixed_asset', '=', True),
+            ('company', '=', Eval('company', -1)),
+            ])
+
+
+class Template(metaclass=PoolMeta):
+    __name__ = 'product.template'
+    depreciable = fields.Boolean('Depreciable', states={
+            'invisible': Eval('type', '') != 'assets',
+            })
+    depreciation_duration = fields.Integer(
+        "Depreciation Duration",
+        states={
+            'invisible': (~Eval('depreciable')
+                | (Eval('type', '') != 'assets')),
+            },
+        help='In months')
+
+    @property
+    @account_used('account_depreciation', 'account_category')
+    def account_depreciation_used(self):
+        pass
+
+    @property
+    @account_used('account_asset', 'account_category')
+    def account_asset_used(self):
+        pass
+
+
+class Product(metaclass=PoolMeta):
+    __name__ = 'product.product'
+
+    account_depreciation_used = template_property('account_depreciation_used')
+    account_asset_used = template_property('account_asset_used')