[FIX] rma_scrap: no scrap if qty to scrap = 0.0

rma_scrap/models/stock_scrap.py

@@ -1,7 +1,9 @@
 # Copyright 2022 ForgeFlow S.L.
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0.html).
 
-from odoo import fields, models
+from odoo import _, fields, models
+from odoo.exceptions import UserError
+from odoo.tools import float_compare, float_is_zero
 
 
 class StockScrap(models.Model):
@@ -39,3 +41,55 @@ class StockScrap(models.Model):
         result["views"] = [(res and res.id or False, "form")]
         result["res_id"] = self.rma_line_id.id
         return result
+
+    def action_validate(self):
+        self.ensure_one()
+        if float_is_zero(
+            self.scrap_qty, precision_rounding=self.product_uom_id.rounding
+        ):
+            raise UserError(_("You can only enter positive quantities."))
+        if self.product_id.type != "product":
+            return self.do_scrap()
+        precision = self.env["decimal.precision"].precision_get(
+            "Product Unit of Measure"
+        )
+        available_qty = sum(
+            self.env["stock.quant"]
+            ._gather(
+                self.product_id,
+                self.location_id,
+                self.lot_id,
+                self.package_id,
+                self.owner_id,
+                strict=True,
+            )
+            .mapped("quantity")
+        )
+        scrap_qty = self.product_uom_id._compute_quantity(
+            self.scrap_qty, self.product_id.uom_id
+        )
+        if float_compare(available_qty, scrap_qty, precision_digits=precision) >= 0:
+            return self.do_scrap()
+        else:
+            ctx = dict(self.env.context)
+            ctx.update(
+                {
+                    "default_product_id": self.product_id.id,
+                    "default_location_id": self.location_id.id,
+                    "default_scrap_id": self.id,
+                    "default_quantity": scrap_qty,
+                    "default_product_uom_name": self.product_id.uom_name,
+                }
+            )
+            return {
+                "name": self.product_id.display_name
+                + _(": Insufficient Quantity To Scrap"),
+                "view_mode": "form",
+                "res_model": "stock.warn.insufficient.qty.scrap",
+                "view_id": self.env.ref(
+                    "stock.stock_warn_insufficient_qty_scrap_form_view"
+                ).id,
+                "type": "ir.actions.act_window",
+                "context": ctx,
+                "target": "new",
+            }