Added Utils Lib to support building the subselect statement in a filterConditionStatement

process/FilterCondition_lib/FilterCondition_lib.aod

+<?xml version="1.0" encoding="UTF-8"?>
+<process xmlns="http://www.adito.de/2018/ao/Model" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" VERSION="1.2.1" xsi:schemaLocation="http://www.adito.de/2018/ao/Model adito://models/xsd/process/1.2.1">
+  <name>FilterCondition_lib</name>
+  <majorModelMode>DISTRIBUTED</majorModelMode>
+  <process>%aditoprj%/process/FilterCondition_lib/process.js</process>
+  <variants>
+    <element>LIBRARY</element>
+  </variants>
+</process>

process/FilterCondition_lib/process.js

+/**
+ * Methods to help build filterCondition statements.
+ * Do not create an instance of this!
+ * 
+ * @class
+ */
+function FilterConditionUtils() {}
+
+/**
+ * Builds a filterConditionStatement.
+ * The values get concatenated as described below:
+ * [pStatementFirstPart] where [pWhereCondition] group by [pGroupByFields] having [pHavingCondition] [pStatementLastPart]
+ * 
+ * @param {String} pStatementFirstPart First part of the subselect e.g. "OFFER.OFFERID in (select OFFERITEM.OFFER_ID from OFFERITEM"
+ * @param {String} pWhereCondition The where conditions e.g. "OFFERITEM.QUANTITY = 2"
+ * @param {String} pGroupByFields Fields to be grouped by. Only required if there is a pHavingCondition. e.G. "OFFER_ID"
+ * @param {String} pHavingCondition The having condition e.g. "MIN( OFFERITEM.PRICE ) > 3"
+ * @param {String} pStatementLastPart The part that gets added in the end. Contains usually ")" to close of the built subselect.
+ * @return {String} The string concatenated as described above
+ */
+FilterConditionUtils.buildFilterConditionStatement = function(pStatementFirstPart, pWhereCondition, pGroupByFields, pHavingCondition, pStatementLastPart)
+{
+    let statement = pStatementFirstPart;
+
+    if (pWhereCondition != null && pWhereCondition.trim() != "")
+        statement += " where " + pWhereCondition;
+
+    if (pGroupByFields != null && pGroupByFields.trim() != "" 
+        && pHavingCondition != null && pHavingCondition.trim() != "" )
+    {
+        statement += " group by " + pGroupByFields + " having " + pHavingCondition
+    }
+
+    statement += " " + pStatementLastPart;
+    
+    return statement;
+}
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