Fixed models being icorrectly set and added SetDefaultRegistry

pkg/modelregistry/model_registry.go

@@ -28,6 +28,10 @@ func NewModelRegistry() *DefaultModelRegistry {
 	}
 }
 
+func SetDefaultRegistry(registry *DefaultModelRegistry) {
+	defaultRegistry = registry
+}
+
 // AddRegistry adds a registry to the global list of registries
 // Registries are searched in the order they were added
 func AddRegistry(registry *DefaultModelRegistry) {

pkg/restheadspec/handler.go

@@ -811,7 +811,7 @@ func (h *Handler) handleUpdate(ctx context.Context, w common.ResponseWriter, id
 		dataMap["id"] = targetID
 
 		// Create update query
-		query := tx.NewUpdate().Model(model).Table(tableName).SetMap(dataMap)
+		query := tx.NewUpdate().Table(tableName).SetMap(dataMap)
 		pkName := reflection.GetPrimaryKeyName(model)
 		query = query.Where(fmt.Sprintf("%s = ?", common.QuoteIdent(pkName)), targetID)