Merge pull request #6713 from danielhusar/master

Fix runtime error when type is not supplied to useNotify

Author: djhi

packages/ra-core/src/sideEffect/useNotify.ts

@@ -35,18 +35,22 @@ const useNotify = () => {
             autoHideDuration?: number,
             multiLine?: boolean
         ) => {
-            if (typeof type === 'string') {
+            if (typeof type === 'string' || !type) {
                 warning(
                     true,
                     'This way of calling useNotify callback is deprecated. Please use the new syntax passing notify("[Your message]", { ...restOfArguments })'
                 );
                 dispatch(
-                    showNotification(message, type || 'info', {
-                        messageArgs,
-                        undoable,
-                        autoHideDuration,
-                        multiLine,
-                    })
+                    showNotification(
+                        message,
+                        (type || 'info') as NotificationType,
+                        {
+                            messageArgs,
+                            undoable,
+                            autoHideDuration,
+                            multiLine,
+                        }
+                    )
                 );
             } else {
                 const { type: messageType, ...options } = type;