Problem updating database for image upload with 2 sizes
I am having a problem updating my database with the file name of the second version (mini) of an uploaded image file. On the update page, if I select a new image for upload the two versions are uploaded correctly and the two database fields are updated correctly.
However, when I update the record without uploading a new image the database is updated correctly except the field for my 2nd version ("mini") of the image is blanked. How do I keep the field for my "mini" version from ending up blank when there is no image uploaded?