perl api get_dcr problem

cc96ai

I try to update the URL node, if the node is NON-empty string,
it works fine , and generate < URL>some value< /value>

my $url = $a->get_node("URL");
$url->set_inner_xml( $newurl );


once the newurl is empty string
then set_inner_xml will generate a empty tag < URL/>

so, once i call $root->get_dcr();

it will return
< item name="URL" />
which is not the correct format of
< item name="URL">< value/>< /item>
or
< item name="URL">< value>< /value>< /item>

any idea how to resolve it ?

Adam Stoller

I try to update the URL node, if the node is NON-empty string, it works fine , and generate < URL>some value< /value> my $url = $a->get_node("URL"); $url->set_inner_xml( $newurl ); once the newurl is empty string then set_inner_xml will generate a empty tag < URL/> so, once i cannot $root->get_dcr(); it will return < item name="URL" /> which is not the correct format of < item name="URL">< value/>< /item> or < item name="URL">< value>< /value>< /item> any idea how to resolve it ?

First - you should consider switching to using XML-style DCRs instead of IWOV-style - so the format would be:

<URL>value</URL>

Second - you need to understand that set_inner_xml is working on DCR data which has been translated into XML-style - and then if you get_dcr() it will try to translate it back into IWOV-style - and it's that process which is probably breaking things (feel free to report it as a bug, but as Interwoven is favoring "xml" style over "iwov" style now - I'm not sure that it would get a high priority) - knowing this, however, you could probably write some simple regex code to do something like (untested):

...
   my $dcr = $root->get_dcr();
   $dcr =~ s|(<item name="[^"]+")/>|$1><value></value></item>|gms;
   ...

Hope that helps