How to get selector form fieldNode?

Question

I try write custom validator for liferay to valid file size before upload.But i cant get file size from fieldNode.

Here is print fieldNode:

+++fieldNode:fieldNode:INPUT#_31_WAR_uploadportlet_avatarUpload yui_patched_v3_11_0_1_1510909953942_944

And here print selector use document.getElementById:

+++selector:[object HTMLInputElement]

This selector not problem with get file size.

So what diffrent between fieldNode and normal selector ? And how get file size from fieldNode.

This important for write custom validator can reusable. Please help me.

Hava a look at this https://stackoverflow.com/questions/7497404/get-file-size-before-uploading — Miroslav Ligas, Nov 25 '17 at 14:16
I did with jquery, but cant with aui validator. My problem post above. Hope you can help. — Jin, Nov 30 '17 at 03:26

score 0 · Answer 1 · edited Dec 01 '17 at 06:24

0

You can do the same as the jQuery example shows. If you have the AUI node just do

fieldNode._node.files[0].size

edited Dec 01 '17 at 06:24

marc_s

answered Nov 23 '17 at 12:57

Miroslav Ligas

I think validate, show message and prevent before user upload a file too big is good way with user experience. – Jin Nov 25 '17 at 10:17

1 Answers1