OFBIZ-11468 Improved: Convert ShipmentReceiptServices.xml mini lang to groovy

applications/product/groovyScripts/shipment/issuance/IssuanceServices.groovy

@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License") you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import org.apache.ofbiz.entity.GenericValue
+
+/**
+ * Computes the total quantity assigned to shipment for a purchase order item
+ * @return
+ */
+def getTotalIssuedQuantityForOrderItem() {
+    Map result = success()
+    GenericValue orderItem = parameters.orderItem
+    BigDecimal totalIssuedQuantity = 0.0
+    List orderShipments = from("OrderShipment").where(orderId: orderItem.orderId, orderItemSeqId: orderItem.orderItemSeqId).queryList()
+    if (orderShipments) {
+        for (GenericValue orderShipment : orderShipments) {
+            totalIssuedQuantity +=  orderShipment.quantity
+        }
+    } else {
+        // This is here for backward compatibility only: ItemIssuances are no more created for purchase orders
+        List allItemIssuances = from("ItemIssuance").where(orderId: orderItem.orderId, orderItemSeqId: orderItem.orderItemSeqId).queryList()
+        for (GenericValue itemIssuance : allItemIssuances) {
+            totalIssuedQuantity += itemIssuance.quantity
+        }
+    }
+    result.totalIssuedQuantity = totalIssuedQuantity
+    return result
+}