GRPharoUtf8CodecStream does not understand object:

On Fri, Jan 24, 2014 at 12:02 PM, Sabine Knöfel

<[hidden email]> wrote:

> Hi,
>
> I think there is a bug in Seaside.
> I run into this when using JQGrid.
>
> Code in Pharo3:
>
> Dictionary>>jsonOn: aRenderer
>         aRenderer object: [
>                 self keysAndValuesDo: [ :key :value |
>                         aRenderer key: key value: value ] ]
>
> aRenderer is iOf GRPharoUtf8CodecStream
> GRPharoUtf8CodecStream does not understand object:

The argument to #jsonOn: should be a WAJsonCanvas and not a
GRPharoUtf8CodecStream in Seaside 3.1. Do you have a stack trace?

> You can reproduce it also when running JQGrid example.
> Have a look in the Network response in the internet browser where you will
> see a 500 internal server error with "MessageNotUnderstood:
> GRPharoUtf8CodecStream>>object:
> Your request could not be completed. An exception occurred."
>
> or implement
>
> GRPharoUtf8CodecStream>>object: anObject
> self halt.
>
> In Pharo2, it was implemented like this:
> Dictionary>>jsonOn: aStream
>         JSJsonStream encodeDictionary: self on: aStream

That was Seaside 3.0. JSON support in Seaside 3.1 is "new". It's no
longer based on JavaScript (JSON isn't actually a JavaScript subset).
It now has a canvas much like the HTML and XML support. This allowed
us to fix many corner case bugs.

Cheers
Philippe
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On Sun, Jan 26, 2014 at 7:45 PM, Sabine Knöfel <[hidden email]> wrote:

> Hi Phillippe,
>
> how do I get a stack trace?
> "Fuel out Stack" in the Debugger?
>
> jsonOn: is sent in this context:
>
> JQGrid>>processSearchCallback
> |searchRequest searchResponse|
> searchRequest := JQGridSearchRequest parseFromWARequest: self requestContext
> request using: jqGridColumns.
> searchResponse := searchCallback value: searchRequest value: jqGridColumns.
> searchResponse jqGridColumns: jqGridColumns.
> self requestContext respond: [:response|
> response
> doNotCache;
> contentType: (WAMimeType applicationJson
> charset: self requestContext handler charSet).
> searchResponse jsonOn: response stream].

Can you try this:

JQGrid>>processSearchCallback
    | searchRequest searchResponse |
    searchRequest := JQGridSearchRequest parseFromWARequest: self
requestContext request using: jqGridColumns.
    searchResponse := searchCallback value: searchRequest value: jqGridColumns.
    searchResponse jqGridColumns: jqGridColumns.
    self requestContext respond: [ :response |
        response
            doNotCache;
            contentType: (WAMimeType applicationJson
                charset: self requestContext handler charSet).

        response stream json: searchResponse ]

Cheers
Philippe
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