Added table identifier to OrderBy to avoid column ambiguity on joins

Co-Authored-By: Richard <1252123+kharenis@users.noreply.github.com>
(cherry picked from commit c57ceac4debf7419be84096f997ba7b75c906586)

Closes #3993

src/NzbDrone.Core/Datastore/BasicRepository.cs

@@ -429,7 +429,7 @@ namespace NzbDrone.Core.Datastore
             var sortKey = TableMapping.Mapper.GetSortKey(pagingSpec.SortKey);
             var sortDirection = pagingSpec.SortDirection == SortDirection.Descending ? "DESC" : "ASC";
             var pagingOffset = Math.Max(pagingSpec.Page - 1, 0) * pagingSpec.PageSize;
-            builder.OrderBy($"\"{sortKey}\" {sortDirection} LIMIT {pagingSpec.PageSize} OFFSET {pagingOffset}");
+            builder.OrderBy($"\"{sortKey.Table ?? _table}\".\"{sortKey.Column}\" {sortDirection} LIMIT {pagingSpec.PageSize} OFFSET {pagingOffset}");
 
             return queryFunc(builder).ToList();
         }

src/NzbDrone.Core/Datastore/TableMapper.cs

@@ -92,33 +92,28 @@ namespace NzbDrone.Core.Datastore
             return true;
         }
 
-        public string GetSortKey(string sortKey)
+        public (string Table, string Column) GetSortKey(string sortKey)
         {
             string table = null;
 
             if (sortKey.Contains('.'))
             {
                 var split = sortKey.Split('.');
-                if (split.Length != 2)
+                if (split.Length == 2)
                 {
-                    return sortKey.FirstCharToUpper();
+                    table = split[0];
+                    sortKey = split[1];
                 }
-
-                table = split[0];
-                sortKey = split[1];
             }
 
-            if (table != null && !TableMap.Values.Contains(table, StringComparer.OrdinalIgnoreCase))
+            if (table != null)
             {
-                return sortKey.FirstCharToUpper();
+                table = TableMap.Values.FirstOrDefault(x => x.Equals(table, StringComparison.OrdinalIgnoreCase)) ?? table;
             }
 
-            if (!_allowedOrderBy.Contains(sortKey))
+            sortKey = _allowedOrderBy.FirstOrDefault(x => x.Equals(sortKey, StringComparison.OrdinalIgnoreCase)) ?? sortKey;
-            {
-                return sortKey.FirstCharToUpper();
-            }
 
-            return _allowedOrderBy.First(x => x.Equals(sortKey, StringComparison.OrdinalIgnoreCase));
+            return (table, sortKey.FirstCharToUpper());
         }
     }