Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 682
  • Last Modified:

checking nil object

hi,

I am wondering if there is smart/elegant ways of checking nil object.

I have this in controller:

 @attending_ip = AttendingIp.find_by_sql("SELECT .....")

In view:

<% if @attending_ip != nil%>
<% @attending_ip.each do |u|  %>
...
...

<%if u.admit_date != nil%><%= u.admit_date.to_formatted_s(:my_format_0)  %><%end%>

...
...

I am checking  whether u.admit_date is nil otherwise, it throws error message since admit_date can be null. So, do I always have to check for all the columns? Are there better ways of doing this?

thx,
0
dkim18
Asked:
dkim18
1 Solution
 
peh803Commented:
With ruby, there is always a better way :-)

Try this...just a little bit cleaner.

Regards,
Phil
<%= u.admit_date.to_formatted_s(:my_format_0) if u.admit_date %>

Open in new window

0
 
dkim18Author Commented:
Ok, that is good enough. thx!
0

Featured Post

[Webinar] Database Backup and Recovery

Does your company store data on premises, off site, in the cloud, or a combination of these? If you answered “yes”, you need a data backup recovery plan that fits each and every platform. Watch now as as Percona teaches us how to build agile data backup recovery plan.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now