Forum Discussion

Gursimrat's avatar
Gursimrat
Leader
11 years ago

Freemarker If/else not working, strange.

I am not able to handle the exception here   Below is the response XML which is giving the error:   <response status="error"> <error code="503"> <message>An object in the path is null.</message> ...
  • AdamN's avatar
    AdamN
    11 years ago

    I'm a little late to the party, but thought I'd share a work-around I've used in the past for this situation. In the code below, I check first to see whether the user has an avatar. I do this by seeing if the object returned via the REST API is not null. If it's not null (there's an image), then I make an additional REST API call to get the avatar in the desired size.

     

    <#attempt>
  <#assign avatarObj = restadmin("/users/id/${user.id?c}/profiles/avatar").image />
  <#if !((avatarObj.@null[0])?? && avatarObj.@null=="true") >
    <#assign avatar = restadmin("/users/id/${user.id?c}/profiles/avatar/size/profile").image />
  </#if>
<#recover>
</#attempt> 

${avatar.url!""}

     I hope this helps!

Gursimrat's avatar
Gursimrat
Leader
Hi NicoB,

This is also giving the Widget Could not be displayed error on page
PaoloT's avatar
PaoloT
Lithium Alumni (Retired)
11 years ago

Hi Gursimrat 

 

the "Widget could not be displayed" text is used to mask the full stack trace (so that it is more user friendly) - if you need to know the precise exception you can always ask support to look for that in your logs.

 

I suspect the problem may be that in some scenarios the check_status variable may not be initialized correctly. Have you tried setting it to a value (such as an empty string) in the recover block, and then check for that before checking the status attribute?

 

Thanks,

Paolo

  • Gursimrat's avatar
    Gursimrat
    Leader
    11 years ago
    Yes, I did set the check_status to "" in recover block
    • NicoB's avatar
      NicoB
      Lithium Alumni (Retired)
      11 years ago

      The problem is.. if you set check_status to "" the <#if check_status.@status == "success"> will fail because now check_status is not an XML node anymore but a string, which cannot reference the @status attribute and this would lead to an error.
      That's why, IMHO, you should try and set another status variable in the <#attempt> statement and test on it.