server/AyaNova/DataList/DataListFieldDefinition.cs

@@ -53,6 +53,9 @@ namespace AyaNova.DataList
         [JsonIgnore]
         public string SqlColorColumnName { get; set; }//column to fetch the color if applicable to this field
 
+        [JsonIgnore]
+        public string SqlColumnExpression { get; set; }//column is based on this expression, not directly on the source tables
+
         public DataListFieldDefinition()
         {
             //most common defaults           
@@ -65,6 +68,7 @@ namespace AyaNova.DataList
             AType = (int)AyaType.NoType;
             SqlATypeColumnName = null;//must be null as that is checked against specifically
             SqlColorColumnName = null;//must be  null to be ignored properly
+            SqlColumnExpression = null;
         }
 
         //Get column to query for display name or use FieldName if there is no difference

server/AyaNova/DataList/DataListSqlSelectBuilder.cs

@@ -58,7 +58,11 @@ namespace AyaNova.DataList
                         {
                             if (firstColumnAdded)
                                 sb.Append(", ");
-                            sb.Append(valueColumnName);
+
+                            if (o.SqlColumnExpression != null)//if there is an expression defined then add it into the select statement, the valuecolumnname will be the AS alias of it
+                                sb.Append(o.SqlColumnExpression);
+                            else
+                                sb.Append(valueColumnName);
                             firstColumnAdded = true;
                             map.Add(valueColumnName, nOrdinal++);
                         }

server/AyaNova/DataList/WorkOrderDataList.cs

@@ -11,7 +11,6 @@ namespace AyaNova.DataList
         {
             DefaultListAType = AyaType.WorkOrder;
             SQLFrom = "from aworkorder "
-            //  + "left join lateral (select id, workorderstatusid, workorderid from aworkorderstate st where workorderid = aworkorder.id order by st.id DESC limit 1) st on aworkorder.id=st.workorderid "
             + "left join aworkorderstatus on (aworkorder.laststatusid = aworkorderstatus.id) "
             + "left join acustomer on (aworkorder.customerid=acustomer.id) "
             + "left join aheadoffice on (acustomer.headofficeid=aheadoffice.id) "
@@ -19,7 +18,7 @@ namespace AyaNova.DataList
             + "left join acontract on (aworkorder.contractid=acontract.id)";
             var RoleSet = BizRoles.GetRoleSet(DefaultListAType);
             AllowedRoles = RoleSet.ReadFullRecord | RoleSet.Change;
-            DefaultColumns = new List<string>() { "WorkOrderSerialNumber", "Customer", "WorkOrderServiceDate", "WorkOrderCloseByDate", "WorkOrderStatus", "Project" };
+            DefaultColumns = new List<string>() { "WorkOrderSerialNumber", "Customer", "WorkOrderServiceDate", "WorkOrderCloseByDate", "WorkOrderStatus", "Project", "WorkOrderAge" };
             DefaultSortBy = new Dictionary<string, string>() { { "WorkOrderSerialNumber", "-" } };
             FieldDefinitions = new List<DataListFieldDefinition>();
 
@@ -247,6 +246,15 @@ namespace AyaNova.DataList
                 SqlValueColumnName = "aworkorder.longitude"
             });
 
+              FieldDefinitions.Add(new DataListFieldDefinition
+            {
+                TKey = "WorkOrderAge",
+                FieldKey = "WorkOrderAge",
+                UiFieldDataType = (int)UiFieldDataType.TimeSpan,                
+                SqlColumnExpression="AGE(timezone('UTC', now()), aworkorder.createddate) as expwoage",
+                SqlValueColumnName = "expwoage"
+            });
+
 
             /*