On Tue, Sep 6, 2011 at 3:04 PM, Thomas Mortagne <[email protected]> wrote: > On Tue, Sep 6, 2011 at 2:59 PM, Mark Wallace <[email protected]> > wrote: >> On 9/6/2011 8:40 AM, Vincent Massol wrote: >>> >>> Hi Mark, >>> >>> On Sep 6, 2011, at 2:15 PM, Mark Wallace wrote: >>> >>>> On 9/3/2011 3:08 AM, Vincent Massol wrote: >>>>> >>>>> Hi, >>>>> >>>>> On Sep 2, 2011, at 10:48 PM, Mark Wallace wrote: >>>>> >>>>> >>>>>> I have a macro (implemented in Java) with this interface: >>>>>> >>>>>> public List<Block> execute(InferenceParameter parameters, String >>>>>> content, MacroTransformationContext context) ; >>>>>> >>>>>> I want to call this macro from within a velocity script. When I do, it >>>>>> returns a List<Block>. How do I get the velocity script to render the >>>>>> List<Block> properly? >>>>>> >>>>> You could check the tutorial at >>>>> http://rendering.xwiki.org/xwiki/bin/view/Main/ExtendingMacro >>>>> (check the deployment at the end). >>>>> >>>>> >>>> I'm not having a problem invoking the macro in a wiki page. But >>>> sometimes I'd like to invoke it from within a larger velocity script. >>>> I.e. >>>> >>>> I can do this: >>>> {{mymacro param="hello"/}} >>>> But I'd also like to do this: >>>> {{velocity}} >>>> #set($words = ["Some", "velocity", "code"]) >>>> #foreach($word in $words) >>>> $word ## >>>> $services.mymacro($word) >>>> #end >>>> {{/velocity}} >>>> I didn't see anything in the deployment part of the tutorial about doing >>>> this. >>> >>> I was going to respond the following: >>> >>> ----- >>> Your first use case is a macro while your second one isn't. The second use >>> case is simply a programmatic service or API that you wish to expose. Macros >>> are not supposed to return anything. >>> >>> To implement your second use case you'd create a Script Service component >>> in java, see >>> http://extensions.xwiki.org/xwiki/bin/view/Extension/Script+Module >>> >>> Now there's another possibility which is to: >>> * call your macro using a groovy script. You'll need to look it up and >>> call its execute method. This will return a List of Blocks >>> * still in the groovy macro code, lookup a renderer and tell it to render >>> the list of blocks. >>> >>> This is slightly more tricky and I don't see why you'd want to do this >>> TBH. To help you further we'd need to know more about your specific use >>> case. >>> ----- >>> >>> But I just understood that you simply want to render the macro from inside >>> your velocity script. So you'd just need to do this: >>> >>> {{velocity}} >>> #set($words = ["Some", "velocity", "code"]) >>> #foreach($word in $words) >>> $word ## >>> {{mymacro param="$word"/}} >>> #end >>> {{/velocity}} >>> >>> Hope it helps, >>> -Vincent >> >> Yes, this is all I needed. Didn't realize I could invoke it inline. Not >> sure how I missed that! Thanks! > > Be just aware that the macro is actually executed after the whole > velocity is executed. What really happen is that you produce wiki > syntax with your velocity script which is then interpreted and macros > are wiki syntax.
That's important to understand when you use include macros ;) > >> -Mark >> >> >> >> _______________________________________________ >> devs mailing list >> [email protected] >> http://lists.xwiki.org/mailman/listinfo/devs >> >> > > > > -- > Thomas Mortagne > -- Thomas Mortagne _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
