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31 lines
1.0 KiB
31 lines
1.0 KiB
# Copyright 2019 Tecnativa - Vicent Cubells
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# Copyright 2019 Tecnativa - Carlos Dauden
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# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
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from odoo import api, fields, models
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import odoo.addons.decimal_precision as dp
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class ContractLine(models.Model):
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_inherit = 'contract.line'
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previous_price = fields.Float(
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string='Previous price',
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related='predecessor_contract_line_id.price_unit',
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readonly=True,
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)
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variation_percent = fields.Float(
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compute='_compute_variation_percent',
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store=True,
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digits=dp.get_precision('Product Price'),
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string='Variation %',
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)
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@api.depends('price_unit', 'predecessor_contract_line_id.price_unit')
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def _compute_variation_percent(self):
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for line in self:
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if line.price_unit and line.previous_price:
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line.variation_percent = (
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(line.price_unit / line.previous_price - 1) * 100)
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else:
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line.variation_percent = 0.0
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