Jacques Le Roux created OFBIZ-10019:
---------------------------------------
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!
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
