From 08125d955f7f5b27fbb97d2497a3c253c40ae77b Mon Sep 17 00:00:00 2001
From: Novarg1 <novarg2006@hotmail.com>
Date: Wed, 24 Feb 2021 12:03:01 +0100
Subject: [PATCH] Added multicurrency support
MIME-Version: 1.0
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Added a query with `convertCurrency` function and replaced currency fields with these new values to show currency fields in the user's currency in the datatable.

Example: we had an opportunity with amount 100k and currency RUB. When viewing it as a user with EUR currency, we would see amount as "RUB 100,000.00 (EUR 1,106.31)", but when seeing this opp in the DatatableV2, we would see the Amount as "€100,000.00". After this change, the DatatableV2 shows the amount as "€1,106.31"
---
 .../default/classes/SObjectController2.cls    | 33 +++++++++++++++----
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/force-app/main/default/classes/SObjectController2.cls b/force-app/main/default/classes/SObjectController2.cls
index 99a8914..780076d 100644
--- a/force-app/main/default/classes/SObjectController2.cls
+++ b/force-app/main/default/classes/SObjectController2.cls
@@ -59,8 +59,9 @@ public with sharing class SObjectController2 {
         Map<String, Map<String,String>> picklistFieldMap;   // Field API Name, <Picklist Value, Picklist Label>
         List<String> percentFieldList;
         List<String> noEditFieldList;
-        list<String> timeFieldList;
-        list<String> picklistFieldList;
+        List<String> timeFieldList;
+        List<String> picklistFieldList;
+        List<String> currencyFieldList;
         String objectName;
         String objectLinkField;
         String timezoneOffset;
@@ -81,6 +82,7 @@ public with sharing class SObjectController2 {
             curRR.noEditFieldList = emptyList;
             curRR.timeFieldList = emptyList;
             curRR.picklistFieldList = emptyList;
+            curRR.currencyFieldList = emptyList;
             curRR.rowData = records;
             curRR.objectName = 'EmptyCollection';
             curRR.objectLinkField = '';
@@ -88,7 +90,7 @@ public with sharing class SObjectController2 {
             String objName = records[0].getSObjectType().getDescribe().getName();
             curRR = getColumnData(curRR, fieldNames, objName);
             curRR = getLookupData(curRR, records, curRR.lookupFieldList, objName);
-            curRR = getRowData(curRR, records, curRR.dataMap, curRR.objNameFieldMap, curRR.lookupFieldList, curRR.percentFieldList, objName, curRR.noEditFieldList);
+            curRR = getRowData(curRR, records, curRR.dataMap, curRR.objNameFieldMap, curRR.lookupFieldList, curRR.percentFieldList, objName, curRR.noEditFieldList, curRR.currencyFieldList);
             curRR.objectName = objName;
         }
         curRR.timezoneOffset = getTimezoneOffset().format();
@@ -114,6 +116,7 @@ public with sharing class SObjectController2 {
         List<String> noEditFields = new List<String>();
         List<String> timeFields = new List<String>();
         List<String> picklistFields = new List<String>();
+        List<String> currencyFields = new List<String>();
         Map<String, Map<String, String>> picklistFieldLabels = new Map<String, Map<String, String>>();
         String objectLinkField = getNameUniqueField(objName);   // Name (link) Field for the Datatable SObject
         System.debug('*** OBJ/LINK' + objname + '/' + objectLinkField);
@@ -161,7 +164,10 @@ public with sharing class SObjectController2 {
                         noEditFields.add(fieldName);
                     }
                 }
-                when 'CURRENCY', 'DECIMAL', 'DOUBLE', 'INTEGER', 'LONG' {
+                when 'CURRENCY' {
+                    currencyFields.add(fieldName);
+                }
+                when 'DECIMAL', 'DOUBLE', 'INTEGER', 'LONG' {
                     // *** create scale attrib in datatableColumnFieldDescriptor and pass the getScale() values in that way. ***
                 }
                 when 'TIME' {
@@ -193,6 +199,7 @@ public with sharing class SObjectController2 {
         curRR.picklistFieldList = picklistFields;
         curRR.picklistFieldMap = picklistFieldLabels;
         curRR.objectLinkField = objectLinkField;
+        curRR.currencyFieldList = currencyFields;
         return curRR;
     }
 
@@ -236,13 +243,27 @@ public with sharing class SObjectController2 {
     }
 
     @AuraEnabled
-    public static ReturnResults getRowData(ReturnResults curRR, List<SObject> records, Map<String, Map<Id, SObject>> dataMap, Map<String, String> objNameFieldMap, List<String> lookupFields, List<String> percentFields, String objName, List<String> noEditFields) {
+    public static ReturnResults getRowData(ReturnResults curRR, List<SObject> records, Map<String, Map<Id, SObject>> dataMap, Map<String, String> objNameFieldMap, List<String> lookupFields, List<String> percentFields, String objName, List<String> noEditFields, List<String> currencyFields) {
         // Update object to include values for the "Name" field referenced by Lookup fields
         String lookupFieldData = '';
         Map<String,Boolean> firstRecord = new Map<String,Boolean>();
         for(String lf : lookupFields) {
             firstRecord.put(lf,true);
         }
+        
+        String objectName = records[0].getSObjectType().getDescribe().getName();
+        String currencyFieldsQuery = 'SELECT Id';
+        for (String currField : currencyFields) {
+            currencyFieldsQuery += ', convertCurrency(' + currField + ')';
+        }
+        currencyFieldsQuery += ' FROM ' + objectName + ' WHERE Id IN :records';
+        Map<Id, SObject> sobjCurrencyFields = new Map<Id, SObject>(Database.query(currencyFieldsQuery));
+        for (SObject so : records) {
+            SObject converted = sobjCurrencyFields.get(so.Id);
+            for (String currField : currencyFields) {
+                so.put(currField, converted.get(currField));
+            }
+        }
 
         for(SObject so : records) {   
             
@@ -393,4 +414,4 @@ public with sharing class SObjectController2 {
         return UserInfo.getTimezone().getOffset(dtNow);
     }
 
-}
\ No newline at end of file
+}