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https://issues.apache.org/jira/browse/FREEMARKER-68?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dekany updated FREEMARKER-68:
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Summary: Double-question mark operator does not properly test for Jython
attributes (was: Double-question mark operator does not properly test for
attributes)
> Double-question mark operator does not properly test for Jython attributes
> --------------------------------------------------------------------------
>
> Key: FREEMARKER-68
> URL: https://issues.apache.org/jira/browse/FREEMARKER-68
> Project: Apache Freemarker
> Issue Type: Bug
> Components: engine
> Affects Versions: 2.3.23
> Reporter: Jason Sachs
>
> The double-question mark operator doesn't work properly with some Jython
> objects.
> It works properly with dicts.
> It does not work properly with custom classes and triggers an item lookup.
> Example setup: (I can't post a complete self-contained example, sorry)
> Jython code called before FreeMarker template is rendered:
> {code}
> class VoodooDoll(object):
> def pinch(self):
> return "ouch"
> model['test1'] = dict(voodooDoll=VoodooDoll())
> {code}
> FreeMarker template:
> {code}
> <#if test1.blah??>
> blah present
> </#if>
> <#if test1.voodooDoll??>
> voodoo doll present
> </#if>
> <#if test1.voodooDoll.pinch??>
> voodoo doll pinch present
> </#if>
> <#if test1.voodooDoll.hit??>
> voodoo doll hit present
> </#if>
> {code}
> This produces the output
> {noformat}
> voodoo doll present
> voodoo doll pinch present
> {noformat}
> so the first three {{#if}} tests work properly, but the fourth one causes
> this error:
> {noformat}
> - Failed at: #if test1.voodooDoll.hit?? [in template
> "source\\aux-files\\parameters.html.template" at line 58, column 1]
> ...
> Caused by: TypeError: 'VoodooDoll' object is unsubscriptable
> at org.python.core.Py.TypeError(Py.java:235)
> at org.python.core.PyObject.__finditem__(PyObject.java:585)
> at
> org.python.core.PyObjectDerived.__finditem__(PyObjectDerived.java:861)
> {noformat}
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