[FreeMarker-user] Short form of if..else

[anjibman]

Hi All,

What is the short form of
<#if myDTO.field??>
${myDTO.filed?size}
<#else>
0
<#/if>

Right now I have ${myDTO.field ! "0"} which *doesn't* print size if
myDTO.field is not NULL.





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[Denis Bredelet]

Post by anjibman
Hi All,
What is the short form of
<#if myDTO.field??>
${myDTO.filed?size}
<#else>
0
<#/if>
Right now I have ${myDTO.field ! "0"} which *doesn't* print size if
myDTO.field is not NULL.

Do you mean you have ${myDTO.field?size ! 0} ?


-- Denis.

[Daniel Dekany]

Post by anjibman
Hi All,
What is the short form of
<#if myDTO.field??>
${myDTO.filed?size}
<#else>
0
<#/if>
Right now I have ${myDTO.field ! "0"} which *doesn't* print size if
myDTO.field is not NULL.

What your code really want to say is that if `field` doesn't exist,
then it should be treated like if its size was 0. So just say that in
FTL too:

${(myDTO.field![])?size}

Another solution is:

${(myDTO.field?size)!0}

but it's less telling, also it will hide the error if `myDTO` is null,
which is unintended.