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[xwiki-users] Macro within code macro

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Lewis Denizen

5 May 2009 5 May '09

9:11 a.m.

Hi xwiki-users, Just wondering if it's possible to add a macro inside a code macro? What I want to do is something like this: {{code language="sql"}} select * from xyz where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' -- The date-macro returns the last business date in yyyyMMdd format {{/code}} Thanks in advance!

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Vincent Massol

5 May 5 May

9:46 a.m.

Hi Lewis, On May 5, 2009, at 9:11 AM, Lewis Denizen wrote:

Hi xwiki-users, Just wondering if it's possible to add a macro inside a code macro? What I want to do is something like this: {{code language="sql"}} select * from xyz where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' -- The date-macro returns the last business date in yyyyMMdd format {{/code}}

If by adding you mean execution it, then no it's not possible since it's not the goal of the code macro. The code macro is supposed to render its content as is without any interpretation (only syntax coloring). However if what you want is to execute some stuff you can use this trick: {{velocity}} {{code}} ... Some velocity code here that will be executed, including a velocity macro ... {{/code}} {{/velocity}} Thanks -Vincent

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Lewis Denizen

11:57 a.m.

Thanks Vincent. One more question - is it possible to execute an XWiki 2.0 macro from Velocity context? On Tue, May 5, 2009 at 4:46 PM, Vincent Massol <vincent(a)massol.net> wrote:

Hi Lewis, On May 5, 2009, at 9:11 AM, Lewis Denizen wrote:

Hi xwiki-users, Just wondering if it's possible to add a macro inside a code macro? What I want to do is something like this: {{code language="sql"}} select * from xyz where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' -- The date-macro returns the last business date in yyyyMMdd format {{/code}}

If by adding you mean execution it, then no it's not possible since it's not the goal of the code macro. The code macro is supposed to render its content as is without any interpretation (only syntax coloring). However if what you want is to execute some stuff you can use this trick: {{velocity}} {{code}} ... Some velocity code here that will be executed, including a velocity macro ... {{/code}} {{/velocity}} Thanks -Vincent _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users

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Vincent Massol

12:01 p.m.

On May 5, 2009, at 11:57 AM, Lewis Denizen wrote:

Thanks Vincent. One more question - is it possible to execute an XWiki 2.0 macro from Velocity context?

yes the velocity macro does this: 1) executes velocity on the full macro content which is considered as text 2) run the wiki parser on the result -Vincent

On Tue, May 5, 2009 at 4:46 PM, Vincent Massol <vincent(a)massol.net> wrote: > Hi Lewis, > > On May 5, 2009, at 9:11 AM, Lewis Denizen wrote: > >> Hi xwiki-users, >> >> Just wondering if it's possible to add a macro inside a code macro? >> What I >> want to do is something like this: >> >> {{code language="sql"}} >> select * >> from xyz >> where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' -- >> The >> date-macro returns the last business date in yyyyMMdd format >> {{/code}} > > If by adding you mean execution it, then no it's not possible since > it's not the goal of the code macro. The code macro is supposed to > render its content as is without any interpretation (only syntax > coloring). > > However if what you want is to execute some stuff you can use this > trick: > > {{velocity}} > {{code}} > ... > Some velocity code here that will be executed, including a velocity > macro > ... > {{/code}} > {{/velocity}} > > Thanks > -Vincent

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Thomas Mortagne

12:32 p.m.

On Tue, May 5, 2009 at 12:01, Vincent Massol <vincent(a)massol.net> wrote:

On May 5, 2009, at 11:57 AM, Lewis Denizen wrote:

Thanks Vincent. One more question - is it possible to execute an XWiki 2.0 macro from Velocity context?

yes the velocity macro does this: 1) executes velocity on the full macro content which is considered as text 2) run the wiki parser on the result

I think it's not exactly what Lewis asked. His problem is that he want to execute a macro inside code macro so for that he need velocity to generate the result of the macro in the code macro content and not just the macro itself. There is no easy way to do that in velocity, this means access the parser as component execute it on {{date-macro date="-1b" format="yyyyMMdd"/}}, execute transformations (other components) on it and re-render the XDOM. And all that just to print a date if i understood well your use case.

-Vincent

On Tue, May 5, 2009 at 4:46 PM, Vincent Massol <vincent(a)massol.net> wrote: > Hi Lewis, > > On May 5, 2009, at 9:11 AM, Lewis Denizen wrote: > >> Hi xwiki-users, >> >> Just wondering if it's possible to add a macro inside a code macro? >> What I >> want to do is something like this: >> >> {{code language="sql"}} >> select * >> from xyz >> where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' -- >> The >> date-macro returns the last business date in yyyyMMdd format >> {{/code}} > > If by adding you mean execution it, then no it's not possible since > it's not the goal of the code macro. The code macro is supposed to > render its content as is without any interpretation (only syntax > coloring). > > However if what you want is to execute some stuff you can use this > trick: > > {{velocity}} > {{code}} > ... > Some velocity code here that will be executed, including a velocity > macro > ... > {{/code}} > {{/velocity}} > > Thanks > -Vincent

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-- Thomas Mortagne

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Vincent Massol

12:46 p.m.

On May 5, 2009, at 12:32 PM, Thomas Mortagne wrote:

On Tue, May 5, 2009 at 12:01, Vincent Massol <vincent(a)massol.net> wrote:

On May 5, 2009, at 11:57 AM, Lewis Denizen wrote:

Thanks Vincent. One more question - is it possible to execute an XWiki 2.0 macro from Velocity context?

yes the velocity macro does this: 1) executes velocity on the full macro content which is considered as text 2) run the wiki parser on the result

I think it's not exactly what Lewis asked. His problem is that he want to execute a macro inside code macro so for that he need velocity to generate the result of the macro in the code macro content and not just the macro itself. There is no easy way to do that in velocity, this means access the parser as component execute it on {{date-macro date="-1b" format="yyyyMMdd"/}}, execute transformations (other components) on it and re-render the XDOM. And all that just to print a date if i understood well your use case.

Well first we'd need to know why Lewis needs to do that! I think we can rephrase the question as: how to pretty print a generated text. The general answer I think is: {{velocity}} ## Compute the content here #set ($content = "....") {{code language="java"}} $content {{/code}} {{/velocity}} As Thomas said though, if you want to execute wiki syntax from velocity you can probably do something like: #set ($mydoc = $xwiki.getDocument("dummy")) $mydoc.setContent("{{mymacro/}}") #set ($content = $mydoc.getRenderedContent()) Note that the current document in the xwiki context would still be the current document and not "dummy" so any macro that uses the current document would not use "dummy". I'd like to know more about the use case. Thanks -Vincent

>> On Tue, May 5, 2009 at 4:46 PM, Vincent Massol <vincent(a)massol.net> >> wrote: >> >>> Hi Lewis, >>> >>> On May 5, 2009, at 9:11 AM, Lewis Denizen wrote: >>> >>>> Hi xwiki-users, >>>> >>>> Just wondering if it's possible to add a macro inside a code >>>> macro? >>>> What I >>>> want to do is something like this: >>>> >>>> {{code language="sql"}} >>>> select * >>>> from xyz >>>> where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' >>>> -- >>>> The >>>> date-macro returns the last business date in yyyyMMdd format >>>> {{/code}} >>> >>> If by adding you mean execution it, then no it's not possible since >>> it's not the goal of the code macro. The code macro is supposed to >>> render its content as is without any interpretation (only syntax >>> coloring). >>> >>> However if what you want is to execute some stuff you can use this >>> trick: >>> >>> {{velocity}} >>> {{code}} >>> ... >>> Some velocity code here that will be executed, including a velocity >>> macro >>> ... >>> {{/code}} >>> {{/velocity}} >>> >>> Thanks >>> -Vincent

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Lewis Denizen

5:29 p.m.

Thanks Vincent/Thomas, Just like Thomas mentioned, my intention was to execute a macro within another macro so that I could "generate" the arguments for a macro on the fly. We're using XWiki as a knowledge base/support tool at work, and we encounter situations like this where we'd like to dynamically generate some "text" as input for a macro. The {{date}} macro is one example, but I was hoping to extend this to extract other information for usage in other macros as well. Also, since we depend on a (proprietary) Java API for calculating business dates, it's easier for us to extract this info from a standardized Java macro than from velocity or groovy. Currently, we're only trying to utilize it with the {{code}} macro for generating pretty copy/paste-able SQL and scripts, but we'd like to create a completely new macro to execute SQLs/scripts on our production servers right from the wiki (something similar to the SQL plugin for XWiki 1.x). Hope this gives some background to the issue. Again, thanks for the immediate feedback on this! On Tue, May 5, 2009 at 7:46 PM, Vincent Massol <vincent(a)massol.net> wrote:

On May 5, 2009, at 12:32 PM, Thomas Mortagne wrote:

On Tue, May 5, 2009 at 12:01, Vincent Massol <vincent(a)massol.net> wrote:

On May 5, 2009, at 11:57 AM, Lewis Denizen wrote:

Thanks Vincent. One more question - is it possible to execute an XWiki 2.0 macro from Velocity context?

yes the velocity macro does this: 1) executes velocity on the full macro content which is considered as text 2) run the wiki parser on the result

I think it's not exactly what Lewis asked. His problem is that he want to execute a macro inside code macro so for that he need velocity to generate the result of the macro in the code macro content and not just the macro itself. There is no easy way to do that in velocity, this means access the parser as component execute it on {{date-macro date="-1b" format="yyyyMMdd"/}}, execute transformations (other components) on it and re-render the XDOM. And all that just to print a date if i understood well your use case.

Well first we'd need to know why Lewis needs to do that! I think we can rephrase the question as: how to pretty print a generated text. The general answer I think is: {{velocity}} ## Compute the content here #set ($content = "....") {{code language="java"}} $content {{/code}} {{/velocity}} As Thomas said though, if you want to execute wiki syntax from velocity you can probably do something like: #set ($mydoc = $xwiki.getDocument("dummy")) $mydoc.setContent("{{mymacro/}}") #set ($content = $mydoc.getRenderedContent()) Note that the current document in the xwiki context would still be the current document and not "dummy" so any macro that uses the current document would not use "dummy". I'd like to know more about the use case. Thanks -Vincent

>> On Tue, May 5, 2009 at 4:46 PM, Vincent Massol <vincent(a)massol.net> >> wrote: >> >>> Hi Lewis, >>> >>> On May 5, 2009, at 9:11 AM, Lewis Denizen wrote: >>> >>>> Hi xwiki-users, >>>> >>>> Just wondering if it's possible to add a macro inside a code >>>> macro? >>>> What I >>>> want to do is something like this: >>>> >>>> {{code language="sql"}} >>>> select * >>>> from xyz >>>> where from_date = '{{date-macro date="-1b" format="yyyyMMdd"/}}' >>>> -- >>>> The >>>> date-macro returns the last business date in yyyyMMdd format >>>> {{/code}} >>> >>> If by adding you mean execution it, then no it's not possible since >>> it's not the goal of the code macro. The code macro is supposed to >>> render its content as is without any interpretation (only syntax >>> coloring). >>> >>> However if what you want is to execute some stuff you can use this >>> trick: >>> >>> {{velocity}} >>> {{code}} >>> ... >>> Some velocity code here that will be executed, including a velocity >>> macro >>> ... >>> {{/code}} >>> {{/velocity}} >>> >>> Thanks >>> -Vincent

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Lewis Denizen
Thomas Mortagne
Vincent Massol