108 lines
3.9 KiB
Python
108 lines
3.9 KiB
Python
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#This file is part sale_margin module for Tryton.
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#The COPYRIGHT file at the top level of this repository contains
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#the full copyright notices and license terms.
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from decimal import Decimal
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from trytond.model import ModelView, ModelSQL, fields
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from trytond.tools import safe_eval, datetime_strftime
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from trytond.pyson import Eval
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from trytond.transaction import Transaction
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from trytond.pool import Pool
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class Sale(ModelSQL, ModelView):
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_name = 'sale.sale'
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margin = fields.Function(fields.Numeric('Margin',
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digits=(16, Eval('currency_digits', 2),),
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depends=['currency_digits'],
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help='It gives profitability by calculating the difference '
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'between the Unit Price and Cost Price.'),
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'get_margin')
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margin_cache = fields.Numeric('Margin Cache',
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digits=(16, Eval('currency_digits', 2)),
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readonly=True,
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depends=['currency_digits'])
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def get_margin(self, ids, name):
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'''
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Return the margin of each sales
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'''
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currency_obj = Pool().get('currency.currency')
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margins = {}
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for sale in self.browse(ids):
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if (sale.state in self._states_cached
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and sale.margin_cache is not None):
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margins[sale.id] = sale.margin_cache
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continue
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for l in sale.lines:
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margin = sum((l.margin for l in sale.lines if l.type == 'line'),
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Decimal(0))
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margins[sale.id] = currency_obj.round(sale.currency, margin)
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return margins
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def store_cache(self, ids):
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for sale in self.browse(ids):
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self.write(sale.id, {
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'untaxed_amount_cache': sale.untaxed_amount,
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'tax_amount_cache': sale.tax_amount,
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'total_amount_cache': sale.total_amount,
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'margin_cache': sale.margin,
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})
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Sale()
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class SaleLine(ModelSQL, ModelView):
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_name = 'sale.line'
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cost_price = fields.Numeric('Cost Price', digits=(16, 4),
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states={
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'invisible': Eval('type') != 'line',
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'required': Eval('type') == 'line',
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}, depends=['type'])
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margin = fields.Function(fields.Numeric('Margin',
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digits=(16, Eval('_parent_sale', {}).get('currency_digits', 2)),
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states={
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'invisible': ~Eval('type').in_(['line', 'subtotal']),
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'readonly': ~Eval('_parent_sale'),
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}, on_change_with=['type', 'quantity', 'cost_price',
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'unit_price', 'unit', '_parent_sale.currency'],
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depends=['type']), 'get_margin')
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def on_change_product(self, vals):
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pool = Pool()
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product_obj = pool.get('product.product')
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if not vals.get('product'):
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return {}
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res = super(SaleLine, self).on_change_product(vals)
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product = product_obj.browse(vals['product'])
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res['cost_price'] = product.cost_price
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return res
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def on_change_with_margin(self, vals):
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cost = Decimal(str(vals.get('quantity') or '0.0')) * \
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(vals.get('cost_price') or Decimal('0.0'))
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amount = Decimal(str(vals.get('quantity') or '0.0')) * \
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(vals.get('unit_price') or Decimal('0.0'))
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res = Decimal(amount-cost)
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return res
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def get_margin(self, ids, name):
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'''
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Return the margin of each sale lines
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'''
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currency_obj = Pool().get('currency.currency')
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res = {}
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for line in self.browse(ids):
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if line.type == 'line':
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cost = Decimal(str(line.quantity)) * (line.cost_price or Decimal('0.0'))
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amount = Decimal(str(line.quantity)) * (line.unit_price)
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res[line.id] = currency_obj.round(line.sale.currency, amount - cost)
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else:
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res[line.id] = Decimal('0.0')
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return res
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SaleLine()
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