Forum Discussion

bhupen's avatar
bhupen
Advisor
11 years ago

NonStringException coming.

Hi   Iam showing notifcation for user. On stage environment its working fine but when I went on production its showing following exception:   NonStringException:For "?length" left-hand operand: E...
OlivierS's avatar
OlivierS
Lithium Alumni (Retired)

bhupen 

 

It won't explain why it's working on stage and not on prod, but have you tried to not use 'string' for your sting name?

I don't know how freemarker works, but it might be a reserved name ... 

bhupen's avatar
bhupen
Advisor
11 years ago

Some how I found that issue but now other issue comes up. following is the code I verified, one entity is missing in that code thats why its showing exception, just because two rest api is used.

Also I got one solution but not sure how can I embed that solution in it.

<#case 'mentions'>                        
                            <#assign date    = relativeOrAbsoluteDate( notification.target.time_stamp ) />
                          <#if notification.target.entity.subject??>                           
                           <#assign subject = truncateMaybe(notification.target.entity.subject) />
                               <#assign link    = notification.target.entity.@view_href />
                            <a href="${link}">
                                <h4>${notification.target.actor.login},
                                ${text.format('pdc6.notifications.mentioned_string')},                                
                                ${subject?string}</h4>
                                  <div class="details">
                                    <b class="notification-icon mono-icons-bg notification-mention"></b> ${date}
                                </div>
                                <#else>
                            <#return 1 />
                                </#if>
                            </a>
                        <#break>

 

Following is the error:

evaluated to null or missing: ==> truncateMaybe(notification.target.entity.subject)

Solution for this:

Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>

Complication: Iam not able to set condition for this. As per tip.