File upload validation

Question

I'm using the following code to validate a user uploaded file : 
 
 a!gridRowLayout( id: ri!index, contents: { if( ri!index > ri!oldAttachments, a!fileUploadField_17r1( label: "file upload " & ri!index, target: ri!target, value: ri!attachments[ri!index], saveInto: ri!attachments[ri!index], validations:{ if( or( find("JPG", a!fileUploadField(value: ri!attachments)), find("JPEG", a!fileUploadField(value: ri!attachments)), find("PNG", a!fileUploadField(value: ri!attachments)), find("ICO", a!fileUploadField(value: ri!attachments)), find("GIF", a!fileUploadField(value: ri!attachments)), find("BMP", a!fileUploadField(value: ri!attachments)) )>0,"Invalid Format",{} 
 ) } 
 
 ... 
 
 but it gives an error in a!for Each() while uploading another file

Ranveer · Answer

The current version of Appian can give direct validations below: 
a!fileUploadField( 
 label: "File Upload", 
 value: ri!document, 
 saveInto: { 
 ri!document 
 }, 
 validations: if( 
 contains({"JPG", "JPEG", "BMP", "PNG", "ICO", "GIF", "jpeg"}, fv!files.extension), 
 "", 
 "Invalid Format" 
 ) 
 ) 
 
Make sure the extension is case sensitive.

Mathieu Drouin · Answer

File upload validation

Top Replies