Assigning more than one video file to an id in rails <p>Am working on a video application where the app in rails receive video files from different user. The videos are sent individually not multiple upload. Am trying to make a user to me able to store more than one video in the same row. for example. if a user has uploaded a video before( say video1), if the same user( with same id) upload another video, i want to update the existing video field( video1, video2 or something similar). I don't want to create another row for the same user. In summary i want to link a user to more than one video submission without adding a new row. Am currently using <code>carrierwave gem</code>, how can i achieve this</p> <pre><code>class Submission &lt; ActiveRecord::Base mount_uploader :videos, VideoUploader end </code></pre> <p>video field above</p> <pre><code>submit = Submission.find(8) #asumming 8 is the id of the same user submit.videos = params[:videos] #new parameter coming in </code></pre> <p>was also thinking of concantenating both the old valid and new valid seperated by a comma, but don't know how to handle that when calling the field.</p>