CakePHP Form Validation only on Entering Data

Question

I am trying to Upload a photo for one of the models and when i am going to the edit mode. It still asks me to upload the photo when the user only wants to edit the text rela

Answer 1

set the parameter

'on' => 'create'

just for the 'uploadError' rule

'uploadError' => array(
    'rule' => array('uploadError'),
    'message' => 'Please select a Photo.',
    'on' => 'create',
),

This way cake will force the user to upload an image just when the record is created.

The other validation rules, intead, will always be valid, but only if a file is actually uploaded.

see the manual