title: How to search using Activerecord in a json field stored as text in DB
body: <p>I have a Json field stored in DB as text.</p>
  
  <p>I want to look for records that contain <code>Harvard</code> as a value for those keys</p>
  
  <pre><code>json_data['infoOnProgram']['universityName']
  </code></pre>
  
  <p>How should I construct my where request to search on that Json field.</p>
  
  <pre><code>Student.where(json_data...
  </code></pre>
  
  <p>Thank you!</p>