[ADD] base_global_discount: New Module 11.0

base_global_discount/models/__init__.py

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+from . import global_discount
+from . import res_partner

base_global_discount/models/global_discount.py

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+# Copyright 2019 Tecnativa - David Vidal
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+from odoo import fields, models
+from odoo.addons import decimal_precision as dp
+
+
+class GlobalDiscount(models.Model):
+    _name = 'global.discount'
+    _description = 'Global Discount'
+    _order = "sequence, id desc"
+
+    sequence = fields.Integer(
+        help='Gives the order to apply discounts',
+    )
+    name = fields.Char(
+        string='Discount Name',
+        required=True,
+    )
+    discount = fields.Float(
+        digits=dp.get_precision('Discount'),
+        required=True,
+        default=0.0,
+    )
+    discount_scope = fields.Selection(
+        selection=[
+            ('sale', 'Sales'),
+            ('purchase', 'Purchases'),
+        ],
+        default='sale',
+        required='True',
+        string='Discount Scope',
+    )
+    company_id = fields.Many2one(
+        comodel_name='res.company',
+        string='Company',
+        default=lambda self: self.env.user.company_id,
+    )
+
+    def name_get(self):
+        result = []
+        for one in self:
+            result.append(
+                (one.id, '{} ({:.2f}%)'.format(one.name, one.discount)))
+        return result
+
+    def _get_global_discount_vals(self, base, **kwargs):
+        """ Prepare the dict of values to create to obtain the discounted
+            amount
+
+           :param float base: the amount to discount
+           :return: dict with the discounted amount
+        """
+        self.ensure_one()
+        return {
+            'global_discount': self,
+            'base': base,
+            'base_discounted': base * (1 - (self.discount / 100)),
+        }

base_global_discount/models/res_partner.py

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+# Copyright 2019 Tecnativa - David Vidal
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = 'res.partner'
+
+    customer_global_discount_ids = fields.Many2many(
+        comodel_name='global.discount',
+        column1='partner_id',
+        column2='global_discount_id',
+        string='Sale Global Discounts',
+        domain=[('discount_scope', '=', 'sale')],
+    )
+    supplier_global_discount_ids = fields.Many2many(
+        comodel_name='global.discount',
+        column1='partner_id',
+        column2='global_discount_id',
+        string='Purchase Global Discounts',
+        domain=[('discount_scope', '=', 'purchase')],
+    )