Will,
${cart.billingAddressCompany!} should do the trick. This is one the of
most annoying thing when you start using FreeMarker, coming from JSP.
Hopefully, you'll soon realize it's a GOOD THING. You and your
template should know if your model (cart in this case) is complete or
not. JSP's silent ignoring of non-existing values is imo an open-door
for bugs and unexpected behaviour. (think how they both will behave
the day you rename your "billingAddressCompany" property, for instance)
You should also be aware that FreeMarker differentiates (or will, in a
future version, I don't exactly remember the current status) between a
null value and a non-existing value (${bean.foo} would behave
differently if bean has a getFoo() method returning null, or no such
method)
http://documentation.magnolia-cms.com/reference/freemarker.html#References
http://freemarker.sourceforge.net/docs/dgui_quickstart_template.html#autoid_12
Cheers,
-g
ps: for more advanced discussion, you might find the freemarker user-
list (and its archive) a good resource too.
On May 6, 2009, at 3:08 PM, Will Scheidegger wrote:
Dear Magnolians
Since everybody @ Magnolia seems to be that much fond of Freemarker
we're trying not to swim too much against the current. I'm having
one very annoying problem though - I often get error messages like
this:
Expression cart.billingAddressCompany is undefined on line 19,
column 11 in ch/fastforward/sfgb/mailtemplates/
shopConfirmationMail_de.txt.
The problematic instruction:
----------
==> ${cart.billingAddressCompany} [on line 19, column 9 in ch/
fastforward/sfgb/mailtemplates/shopConfirmationMail_de.txt]
----------
Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Expression
cart.billingAddressCompany is undefined on line 19, column 11 in ch/
fastforward/sfgb/mailtemplates/shopConfirmationMail_de.txt.
at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:
124)
...
Now if I place every ${myVar} in a <#if cart.orderAddressMobile??
>...</#if> things would be fine, but isn't there a simple way to do
this? Is there a setting or something that simply does not print out
anything if the var is not defined? I'm sure I _must_ be missing
something, because this works like a charm in JSP...
Thanks for the insight.
-will
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