Fix ambiguous column when sorting media_files by created_at.

Fix #3006

persistence/sql_base_repository.go

@@ -68,12 +68,23 @@ func (r sqlRepository) applyOptions(sq SelectBuilder, options ...model.QueryOpti
 	return sq
 }
 
-func (r sqlRepository) buildSortOrder(sort, order string) string {
+// TODO Change all sortMappings to have a consistent case
+func (r sqlRepository) sortMapping(sort string) string {
 	if mapping, ok := r.sortMappings[sort]; ok {
-		sort = mapping
+		return mapping
+	}
+	if mapping, ok := r.sortMappings[toCamelCase(sort)]; ok {
+		return mapping
 	}
-
 	sort = toSnakeCase(sort)
+	if mapping, ok := r.sortMappings[sort]; ok {
+		return mapping
+	}
+	return sort
+}
+
+func (r sqlRepository) buildSortOrder(sort, order string) string {
+	sort = r.sortMapping(sort)
 	order = strings.ToLower(strings.TrimSpace(order))
 	var reverseOrder string
 	if order == "desc" {