barcode database app

I already developed an app for iphone , the app is viewbased some textboxes and buttons. when the scan button hit camera opens detects the barcode and print the barcode number to the text box. then when we click to the find button it searches the database and places relavent information to the other textboxes. ( a very simple inventory app ) i use sqlite3 on this project. I want someone to fix couple of things on the project. 1. i need the database file could be replaced by email. like explained on the link below ([login to view URL]) 2. I need the app to run a search right after the barcode is scanned without in need of pressing a button.