{"action":"opened","issue":{"url":"https://api.github.com/repos/strongloop/loopback/issues/1488","labels_url":"https://api.github.com/repos/strongloop/loopback/issues/1488/labels{/name}","comments_url":"https://api.github.com/repos/strongloop/loopback/issues/1488/comments","events_url":"https://api.github.com/repos/strongloop/loopback/issues/1488/events","html_url":"https://github.com/strongloop/loopback/issues/1488","id":91185625,"number":1488,"title":"exist,$exist,exists,$exists nothing is working for existence of field in a model ","user":{"login":"dhirenderbp","id":12148974,"avatar_url":"https://avatars.githubusercontent.com/u/12148974?v=3","gravatar_id":"","url":"https://api.github.com/users/dhirenderbp","html_url":"https://github.com/dhirenderbp","followers_url":"https://api.github.com/users/dhirenderbp/followers","following_url":"https://api.github.com/users/dhirenderbp/following{/other_user}","gists_url":"https://api.github.com/users/dhirenderbp/gists{/gist_id}","starred_url":"https://api.github.com/users/dhirenderbp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dhirenderbp/subscriptions","organizations_url":"https://api.github.com/users/dhirenderbp/orgs","repos_url":"https://api.github.com/users/dhirenderbp/repos","events_url":"https://api.github.com/users/dhirenderbp/events{/privacy}","received_events_url":"https://api.github.com/users/dhirenderbp/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-26T08:10:02Z","updated_at":"2015-06-26T08:10:02Z","closed_at":null,"body":"{\r\n   order: 'name ASC',\r\n   where: {title:{\"exists\": true}}\r\n};\r\n\r\nI am using the above filter for existence of title but it doesn't return nothing to me so please let me know whether exists work or not. because mongodb provides me"}}