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From "Jochen Kemnade (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAP5-2072) Tapestry "metadata" is not added to XHR response if event handler method return JSONArray
Date Thu, 14 Feb 2013 09:40:15 GMT
Jochen Kemnade created TAP5-2072:
------------------------------------

             Summary: Tapestry "metadata" is not added to XHR response if event handler method
return JSONArray
                 Key: TAP5-2072
                 URL: https://issues.apache.org/jira/browse/TAP5-2072
             Project: Tapestry 5
          Issue Type: Bug
          Components: tapestry-core
    Affects Versions: 5.4
            Reporter: Jochen Kemnade


For event handlers that return JSONObject, there is an entry _tapestry in the response object
that contains additional resources or inits that are to be executed before passing the actual
data to the success handler function.
When an event handler method returns JSONArray, the resulting array is passed to the client
as it is.
The actual problem I have is that I want to add an alert init to the response.
The issue could be addressed by wrapping JSONArray responses in a JSONObject, (e.g. {_tapestry:{...},
data: [...]}) and transforming it back on the client side. Probably, for the sake of consistency,
it would even be best to to that with JSONObject responses too (e.g. {_tapestry:{...}, data:
{...}}).
However, that approach would lead to the problem that ResponseWrapper.text (representing an
Object) doesn't match ResponseWrapper.json (an Array). By the way, there is also a mismatch
between those properties for JSONObject responses that contain a _tapestry property: it is
deleted in ResponseWrapper.json but stays in place within ResponseWrapper.text.

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