[jira] [Created] (OFBIZ-10019) Replace ?default(value) by !value in Freemarker templates

["Jacques Le Roux (JIRA)" <ji...@apache.org>]

Jacques Le Roux created OFBIZ-10019:
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             Summary: Replace ?default(value) by !value in Freemarker templates
                 Key: OFBIZ-10019
                 URL: https://issues.apache.org/jira/browse/OFBIZ-10019
             Project: OFBiz
          Issue Type: Improvement
          Components: ALL COMPONENTS
    Affects Versions: Trunk
            Reporter: Jacques Le Roux
            Assignee: Jacques Le Roux
            Priority: Trivial
             Fix For: Upcoming Release


I want to teplace ?default(value) by !value in Freemarker templates, that's 1394 cases!

But before doing so I prefer to wait for a 2.4 Freemarker version because we already experienced an issue at OFBIZ-4902, see http://svn.apache.org/viewvc?view=revision&revision=r1624876

Actually I know now that it was not a bug of ours but [one of Freemarker|https://freemarker.apache.org/docs/dgui_template_exp.html#dgui_template_exp_missing_default]:
bq. Warning! If you have a composite expression after the \!, like 1 + x, always use parenthesses, like ${x!(1 + y)} or ${(x!1) + y)}, depending on which interpretation you meant. That's needed because due to a programming mistake in FreeMarker 2.3.x, the precedence of ! (when it's used as default value operator) is very low at its right side. This means that, for example, ${x!1 + y} is misinterpreted by FreeMarker as ${x!(1 + y)} while it should mean ${(x!1) + y}. This programming error will be fixed in FreeMarker 2.4, so you should not utilize this wrong behavior, or else your templates will break with FreeMarker 2.4!




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