title: Using a QR code instead of a barcode to read a number into a web form
body: <p>I want to use generate a QR code for a docket number in a rails web app and print it on the docket. Later, a cashier will scan the QR code from the printed docket into a web form and submit it where my app will retrieve the docket record from a database using the submitted number. Is this feasible and how can I do this? The cashier may use any device from a tablet, phone or computer.</p>
  
  <p>I know how to generate the required code but unsure of the feasibility of reading the code into an input form on a web page.</p>