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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20999 #set does not allow to assign nulls---cannot it be changed? Summary: #set does not allow to assign nulls---cannot it be changed? Product: Velocity Version: 1.3.1 Platform: All OS/Version: All Status: NEW Severity: Enhancement Priority: Other Component: Source AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] Currently #set does not change $ref if the value is null. To quote manual: "If the RHS evaluates to null, it is not assigned to the LHS". It has some advantages, but well, it has also disadvantages. In my concrete case, I have #foreach loop, where I list some items. Unfortunatley, the listing (I mean the output) heavily depends on values of some fields. Considering I have #foreach $item in $items I have to call $item.foo or $item.bar every time I need to check if the value is set or not. Instead I'd prefer to #set ($foo = $item.foo) a.s.o. and to use just $foo in further processing instead of calling $item getFoo() method all the time--- it's not only about ease of writting, it's also about the time it takes to invoke that method, plus the time of what this metod really does (it's not always just simple return this.foo statement). Of course I would not like to break the compatibility of the #set behaviour, but I wonder if would be there a way to actually add the possibility to set some $ref to null, what would casue #if ($ref) to evaluate as false. Currently, using #set causes, that if we step on $item.foo that returns null, we have $ref set to the value of a previous $item. The workaround is to use $item.foo everywhere, but it's not very comfortable. Can it be done something about that? Maybe on option in velocity.properties enabling of returning nulls or new operator (instead of '=') to assign null values (like ':=' for example). --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
