getting objectmodel in flowscript (using properties module), Lenya 2.0.x

[ma...@schrick-design.de]

Hi Lenya Devs,

I'm using the PropertiesInputModule to retrieve property-values inside a JavaScript FlowScript.

Where I was stumbling over was how to get the value for the third parameter in getAttribute(propKey, null, objectModel).
After some Googling I found the hint to create that objectModel-Map myself.
The code I'm using now is (fragment):
selector = cocoon.getComponent(Packages.org.apache.cocoon.components.modules.input.InputModule.ROLE + "Selector");
inputModule = selector.select("properties");
var objectModel = new java.util.HashMap();
objectModel.put('request', cocoon.request);
theVal = inputModule.getAttribute(propKey, null, objectModel);

Although this works so far, what I don't like is, that not the "real" ObjectModel is passed. Maybe in future the module makes use of more than the request-object.

My Questions:
how to get/pass the "real" ObjectModel?
Or is there a more elegant way to get the values of (Lenya) properties inside a JavaScript FlowScript?

Many thanks ahead,
 Gerd

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Re: getting objectmodel in flowscript (using properties module), Lenya 2.0.x

[Andreas Hartmann <an...@apache.org>]

Hi Gerd,

mail@schrick-design.de schrieb:
> I'm using the PropertiesInputModule to retrieve property-values inside a JavaScript FlowScript.
> 
> Where I was stumbling over was how to get the value for the third parameter in getAttribute(propKey, null, objectModel).
> After some Googling I found the hint to create that objectModel-Map myself.
> The code I'm using now is (fragment):
> selector = cocoon.getComponent(Packages.org.apache.cocoon.components.modules.input.InputModule.ROLE + "Selector");
> inputModule = selector.select("properties");
> var objectModel = new java.util.HashMap();
> objectModel.put('request', cocoon.request);
> theVal = inputModule.getAttribute(propKey, null, objectModel);
> 
> Although this works so far, what I don't like is, that not the "real" ObjectModel is passed. Maybe in future the module makes use of more than the request-object.
> 
> My Questions:
> how to get/pass the "real" ObjectModel?

you can use the FlowHelper:

var flowHelper;
try {
   flowHelper = 
cocoon.getComponent("org.apache.lenya.cms.cocoon.flow.FlowHelper");
   var objectMOdel = flowHelper.getObjectModel(cocoon);
   …
}
finally {
   cocoon.releaseComponent(flowHelper);
}


 > Or is there a more elegant way to get the values of (Lenya) properties
 > inside a JavaScript FlowScript?

I don't think so, but the code of the PropertiesInputModule could be 
refactored to create a "standalone" service for property access. IMO 
coding business logic in Cocoon components isn't a good practise anyway, 
they should only be responsible for accessing business services from 
pipelines.

HTH,

-- Andreas


-- 
Andreas Hartmann, CTO
BeCompany GmbH
http://www.becompany.ch
Tel.: +41 (0) 43 818 57 01


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