Saving a file object

[alextouch]

Hi

I have a subform where there are a description text field and a file object, on each row.
I need to allow saving record only if:
- both the description field and the file object are already populated (e.g. if I update a description field on a row already saved);
or
- the description field is populated and a file is selected for upload (e.g. if I add a new row on the subform);
or
- both the description field and the file object are blank (e.g. if the subform is empty).

In other words, I need to apply a filter that doesn't permit to save a record if there is the description field populated while no file is added for upload.

But I don't know how to check if a file object is left blank or not, or if there is a file already uploaded into the database for each row.

Please can someone help me?

Thank you
Alex

[massiws]

Alex,
you can do it with JavaScript: in Custom Code > Javascript tab you have to use nuBeforeSave() function: http://wiki.nubuilder.com/tiki-index.ph ... eforeSave_
If this function return false the record isn't saved.

Hope this helps,
Max

[admin]

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