stock_valuation_xlsx: first port to v14 without price history (when you ask for a past price, you get the current price for the moment)

stock_valuation_xlsx/models/__init__.py

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+from . import stock_expiry_depreciation_rule

stock_valuation_xlsx/models/stock_expiry_depreciation_rule.py

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+# Copyright 2021 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class StockExpiryDepreciationRule(models.Model):
+    _name = 'stock.expiry.depreciation.rule'
+    _description = 'Stock Expiry Depreciation Rule'
+    _order = 'company_id, start_limit_days'
+
+    company_id = fields.Many2one(
+        'res.company', string='Company',
+        ondelete='cascade', required=True,
+        default=lambda self: self.env.company)
+    start_limit_days = fields.Integer(
+        string='Days Before/After Expiry', required=True,
+        help="Enter negative value for days before expiry. Enter positive values for days after expiry. This value is the START of the time interval when going from future to past.")
+    ratio = fields.Integer(string='Depreciation Ratio (%)', required=True)
+    name = fields.Char(string='Label')
+
+    _sql_constraints = [(
+        'ratio_positive',
+        'CHECK(ratio >= 0)',
+        'The depreciation ratio must be positive.'
+        ), (
+        'ratio_max',
+        'CHECK(ratio <= 100)',
+        'The depreciation ratio cannot be above 100%.'
+        ), (
+        'start_limit_days_unique',
+        'unique(company_id, start_limit_days)',
+        'This depreciation rule already exists in this company.'
+        )]