title: Rails input comma separated value from text field and store in different columns
body: <p>I have a model named <code>RaceTimings</code> which records the timing of each student in a race.</p>
  
  <p>I want to take the input of the form in format <code>minute:seconds:microseconds</code> from a single text field and store the values in 3 different columns of the same model.</p>
  
  <p>I have already been through other links but could not find any solution. </p>
  
  <p>Can anyone suggest how this can be done?    </p>