How to Make File Description Field Required ?

Use case: Users who are authorized to use this edit page are 1) required to upload at least one file, and 2) must associate a description with that file.

Plus: How can I edit "Description" to display "Alternative File Name" ?

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sandshakimiAsked:
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Hans LangerCommented:
have you tried with Javascript?. I don't really know what is the context and what access do you have to modify the page:

if(document.getElementById('filename').value=='' || document.getElementById('filedescription').value==''){
   alert('Please Choose File and type a Description')
  return false
}

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sandshakimiAuthor Commented:
I've got Drupal Admin, and access to the codebase.

Where would I pu this JS?
0
Hans LangerCommented:
Sorry, I havent work on Drupal, but i can tell you this:

The 2 fields need to be send to the server to be readed and processed.
The page can use a javascript code or a <FORM> tag with a SUBMIT button to send data to the server through an HTTP request.

If there is a button with a javascript code, then you can add this code before the javascript send the data to the server.

If there is a FORM and a SUBMIT button then you will need to add it in the "onsubmit" event of the form.
<FORM onsubmit="myValidactionFunction();">
...
</FORM>
<script>
function myValidactionFunction(){
   if(document.getElementById('filename').value=='' || document.getElementById('filedescription').value==''){
      alert('Please Choose File and type a Description')
      return false //return false will stop the submit
   }
return true //return true will continue with the submit
}
</script>

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