add purchase bug fix

app_purchase_quantity_fix/models/purchase.py

@@ -0,0 +1,62 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from datetime import datetime
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models, SUPERUSER_ID, _
+from odoo.tools import DEFAULT_SERVER_DATETIME_FORMAT
+from odoo.tools.float_utils import float_is_zero, float_compare
+from odoo.exceptions import UserError, AccessError
+from odoo.tools.misc import formatLang
+from odoo.addons.base.res.res_partner import WARNING_MESSAGE, WARNING_HELP
+import odoo.addons.decimal_precision as dp
+
+
+class PurchaseOrder(models.Model):
+    _inherit = "purchase.order"
+
+    @api.depends('order_line.move_ids.state',
+                 'order_line.move_ids.picking_id',
+                 'order_line.move_ids.returned_move_ids',
+                 'order_line.move_ids.returned_move_ids.returned_move_ids')
+    def _compute_picking(self):
+        for order in self:
+            pickings = self.env['stock.picking']
+            for line in order.order_line:
+                # We keep a limited scope on purpose. Ideally, we should also use move_orig_ids and
+                # do some recursive search, but that could be prohibitive if not done correctly.
+                return_moves = line.move_ids.mapped('returned_move_ids')
+                moves = line.move_ids | return_moves | return_moves.mapped('returned_move_ids')
+                moves = moves.filtered(lambda r: r.state != 'cancel')
+                pickings |= moves.mapped('picking_id')
+            order.picking_ids = pickings
+            order.picking_count = len(pickings)
+
+class PurchaseOrderLine(models.Model):
+    _inherit = "purchase.order.line"
+
+    @api.depends('order_id.state',
+                 'move_ids.state',
+                 'move_ids.returned_move_ids.state',
+                 'move_ids.returned_move_ids.returned_move_ids.state')
+    def _compute_qty_received(self):
+        for line in self:
+            if line.order_id.state not in ['purchase', 'done']:
+                line.qty_received = 0.0
+                continue
+            if line.product_id.type not in ['consu', 'product']:
+                line.qty_received = line.product_qty
+                continue
+            total = 0.0
+            return_moves = line.move_ids.mapped('returned_move_ids')
+            moves = line.move_ids | return_moves | return_moves.mapped('returned_move_ids')
+            for move in moves:
+                value = 0.0
+                if move.state == 'done':
+                    value = move.product_uom._compute_quantity(move.product_uom_qty, line.product_uom)
+                    if move.location_id.usage == 'supplier':
+                        total += value
+                    else:
+                        total -= value
+            line.qty_received = total