Strange error with Comet and Seaside 2.9-a3

> I have a render method for a table like so :-
>
> renderUser: aUser asRowOn: html
>        |id|
>
>        id := 'bm-', aUser id asString.
>
>        html tableRow id: id; with:
>                [html
>                        tableData: [html anchor class: #underline;
>                                                        onClick:((html jQuery: #ebmd) load html: [:r | r render: (self
> editUserComponent: atUser id)]);
>                                                        with: aUser userName];
>                        tableData: aUser role;
> .
> .
> .
>
> The onClick script calls a JQuery Dialog that pops up, and when I
> click on Save, I fire an Announcement, that is registered in the same
> component. The Announcement methods is like this :-
>
> addUser: aUser
>        self pusher javascript: [ :script |
>                script << (script jQuery: #usertable)
>                        append: [:html | self renderUser: atUser asRowOn: html]
>                ]
>
>
> When the #renderUser is called from #addUser, and the tableData code
> is invoked, I get an error. This is a partial stacktrace :-
>
> UndefinedObject(Object)>>doesNotUnderstand: #withoutParameters
>        Receiver: nil
>        Arguments and temporary variables:
>                aMessage:       withoutParameters
>                exception:      MessageNotUnderstood: UndefinedObject>>withoutParameters
>                resumeValue:    nil
>        Receiver''s instance variables:
> nil
>
> JQLoad(JQAjax)>>enableCallbacks
>        Receiver: $("#ebmd").load("/","")
>        Arguments and temporary variables:
>
>        Receiver''s instance variables:
>                owner:  $("#ebmd")
>                options:        a WASmallDictionary
>                callback:       nil
>                callbackId:     nil
>                selector:       nil
>
> JQLoad(JQAjax)>>callback:
>        Receiver: $("#ebmd").load("/","")
>        Arguments and temporary variables:
>                aBlock:         [] in JQLoad(JQAjax)>>html: {[context := self
> requestContext.  context ...etc...
>        Receiver''s instance variables:
>                owner:  $("#ebmd")
>                options:        a WASmallDictionary
>                callback:       nil
>                callbackId:     nil
>                selector:       nil
>
> JQLoad(JQAjax)>>html:
>        Receiver: $("#ebmd").load("/","")
>        Arguments and temporary variables:
>                aBlock:         [] in BookmakerRootComponent>>renderUser:asRowOn: {[:r | r
>  rende...etc...
>                context:        nil
>        Receiver''s instance variables:
>                owner:  $("#ebmd")
>                options:        a WASmallDictionary
>                callback:       nil
>                callbackId:     nil
>                selector:       nil
>
>
> If I comment out the tableData line, everything works fine. If I leave
> in the tableData line, and comment out the Comet push script code,
> everything is fine. Both pieces of code enabled, generates the error.
>
> Any help, most appreciated.
> --
> -JT
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>

> I cannot quite follow the real cause of the problem, but there is
> definitely an issue here. You push out some JQuery code that contains
> callbacks, these callbacks however refer to the session that created
> the event.
>
> This is a general problem of Comet and could probably be solved by
> generating different scripts for the different sessions, however there
> is no mechanism right now that helps you with that. The way I used it
> was to simply send a method call to the client to trigger a refresh.
>
> Lukas
>
> On Wed, Apr 22, 2009 at 4:47 AM, John Toohey <[hidden email]> wrote:
>> I have a render method for a table like so :-
>>
>> renderUser: aUser asRowOn: html
>>        |id|
>>
>>        id := 'bm-', aUser id asString.
>>
>>        html tableRow id: id; with:
>>                [html
>>                        tableData: [html anchor class: #underline;
>>                                                        onClick:((html jQuery: #ebmd) load html: [:r | r render: (self
>> editUserComponent: atUser id)]);
>>                                                        with: aUser userName];
>>                        tableData: aUser role;
>> .
>> .
>> .
>>
>> The onClick script calls a JQuery Dialog that pops up, and when I
>> click on Save, I fire an Announcement, that is registered in the same
>> component. The Announcement methods is like this :-
>>
>> addUser: aUser
>>        self pusher javascript: [ :script |
>>                script << (script jQuery: #usertable)
>>                        append: [:html | self renderUser: atUser asRowOn: html]
>>                ]
>>
>>
>> When the #renderUser is called from #addUser, and the tableData code
>> is invoked, I get an error. This is a partial stacktrace :-
>>
>> UndefinedObject(Object)>>doesNotUnderstand: #withoutParameters
>>        Receiver: nil
>>        Arguments and temporary variables:
>>                aMessage:       withoutParameters
>>                exception:      MessageNotUnderstood: UndefinedObject>>withoutParameters
>>                resumeValue:    nil
>>        Receiver''s instance variables:
>> nil
>>
>> JQLoad(JQAjax)>>enableCallbacks
>>        Receiver: $("#ebmd").load("/","")
>>        Arguments and temporary variables:
>>
>>        Receiver''s instance variables:
>>                owner:  $("#ebmd")
>>                options:        a WASmallDictionary
>>                callback:       nil
>>                callbackId:     nil
>>                selector:       nil
>>
>> JQLoad(JQAjax)>>callback:
>>        Receiver: $("#ebmd").load("/","")
>>        Arguments and temporary variables:
>>                aBlock:         [] in JQLoad(JQAjax)>>html: {[context := self
>> requestContext.  context ...etc...
>>        Receiver''s instance variables:
>>                owner:  $("#ebmd")
>>                options:        a WASmallDictionary
>>                callback:       nil
>>                callbackId:     nil
>>                selector:       nil
>>
>> JQLoad(JQAjax)>>html:
>>        Receiver: $("#ebmd").load("/","")
>>        Arguments and temporary variables:
>>                aBlock:         [] in BookmakerRootComponent>>renderUser:asRowOn: {[:r | r
>>  rende...etc...
>>                context:        nil
>>        Receiver''s instance variables:
>>                owner:  $("#ebmd")
>>                options:        a WASmallDictionary
>>                callback:       nil
>>                callbackId:     nil
>>                selector:       nil
>>
>>
>> If I comment out the tableData line, everything works fine. If I leave
>> in the tableData line, and comment out the Comet push script code,
>> everything is fine. Both pieces of code enabled, generates the error.
>>
>> Any help, most appreciated.
>> --
>> -JT
>> _______________________________________________
>> seaside mailing list
>> [hidden email]
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>
>
>
>
> --
> Lukas Renggli
> http://www.lukas-renggli.ch
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>

>
> Thanks.
>
> On Wed, Apr 22, 2009 at 02:56, Lukas Renggli <[hidden email]> wrote:
>> I cannot quite follow the real cause of the problem, but there is
>> definitely an issue here. You push out some JQuery code that contains
>> callbacks, these callbacks however refer to the session that created
>> the event.
>>
>> This is a general problem of Comet and could probably be solved by
>> generating different scripts for the different sessions, however there
>> is no mechanism right now that helps you with that. The way I used it
>> was to simply send a method call to the client to trigger a refresh.
>>
>> Lukas
>>
>> On Wed, Apr 22, 2009 at 4:47 AM, John Toohey <[hidden email]> wrote:
>>> I have a render method for a table like so :-
>>>
>>> renderUser: aUser asRowOn: html
>>>        |id|
>>>
>>>        id := 'bm-', aUser id asString.
>>>
>>>        html tableRow id: id; with:
>>>                [html
>>>                        tableData: [html anchor class: #underline;
>>>                                                        onClick:((html jQuery: #ebmd) load html: [:r | r render: (self
>>> editUserComponent: atUser id)]);
>>>                                                        with: aUser userName];
>>>                        tableData: aUser role;
>>> .
>>> .
>>> .
>>>
>>> The onClick script calls a JQuery Dialog that pops up, and when I
>>> click on Save, I fire an Announcement, that is registered in the same
>>> component. The Announcement methods is like this :-
>>>
>>> addUser: aUser
>>>        self pusher javascript: [ :script |
>>>                script << (script jQuery: #usertable)
>>>                        append: [:html | self renderUser: atUser asRowOn: html]
>>>                ]
>>>
>>>
>>> When the #renderUser is called from #addUser, and the tableData code
>>> is invoked, I get an error. This is a partial stacktrace :-
>>>
>>> UndefinedObject(Object)>>doesNotUnderstand: #withoutParameters
>>>        Receiver: nil
>>>        Arguments and temporary variables:
>>>                aMessage:       withoutParameters
>>>                exception:      MessageNotUnderstood: UndefinedObject>>withoutParameters
>>>                resumeValue:    nil
>>>        Receiver''s instance variables:
>>> nil
>>>
>>> JQLoad(JQAjax)>>enableCallbacks
>>>        Receiver: $("#ebmd").load("/","")
>>>        Arguments and temporary variables:
>>>
>>>        Receiver''s instance variables:
>>>                owner:  $("#ebmd")
>>>                options:        a WASmallDictionary
>>>                callback:       nil
>>>                callbackId:     nil
>>>                selector:       nil
>>>
>>> JQLoad(JQAjax)>>callback:
>>>        Receiver: $("#ebmd").load("/","")
>>>        Arguments and temporary variables:
>>>                aBlock:         [] in JQLoad(JQAjax)>>html: {[context := self
>>> requestContext.  context ...etc...
>>>        Receiver''s instance variables:
>>>                owner:  $("#ebmd")
>>>                options:        a WASmallDictionary
>>>                callback:       nil
>>>                callbackId:     nil
>>>                selector:       nil
>>>
>>> JQLoad(JQAjax)>>html:
>>>        Receiver: $("#ebmd").load("/","")
>>>        Arguments and temporary variables:
>>>                aBlock:         [] in BookmakerRootComponent>>renderUser:asRowOn: {[:r | r
>>>  rende...etc...
>>>                context:        nil
>>>        Receiver''s instance variables:
>>>                owner:  $("#ebmd")
>>>                options:        a WASmallDictionary
>>>                callback:       nil
>>>                callbackId:     nil
>>>                selector:       nil
>>>
>>>
>>> If I comment out the tableData line, everything works fine. If I leave
>>> in the tableData line, and comment out the Comet push script code,
>>> everything is fine. Both pieces of code enabled, generates the error.
>>>
>>> Any help, most appreciated.
>>> --
>>> -JT
>>> _______________________________________________
>>> seaside mailing list
>>> [hidden email]
>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>
>>
>>
>>
>> --
>> Lukas Renggli
>> http://www.lukas-renggli.ch
>> _______________________________________________
>> seaside mailing list
>> [hidden email]
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>
>
>
>
> --
> -JT
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>

>> Do you mean that I should force a full page refresh on all the clients
>>  when the server updates data? I see this error on the same session
>> that caused the data to change.
>
> Not necessarily a full refresh. Just tigger a script that fetches the
> appropriate update.
>
> With the given information I cannot reproduce the exact problem. If
> you could post a ready to run example I am sure somebody could help.
>
> Lukas
>
>>
>> Thanks.
>>
>> On Wed, Apr 22, 2009 at 02:56, Lukas Renggli <[hidden email]> wrote:
>>> I cannot quite follow the real cause of the problem, but there is
>>> definitely an issue here. You push out some JQuery code that contains
>>> callbacks, these callbacks however refer to the session that created
>>> the event.
>>>
>>> This is a general problem of Comet and could probably be solved by
>>> generating different scripts for the different sessions, however there
>>> is no mechanism right now that helps you with that. The way I used it
>>> was to simply send a method call to the client to trigger a refresh.
>>>
>>> Lukas
>>>
>>> On Wed, Apr 22, 2009 at 4:47 AM, John Toohey <[hidden email]> wrote:
>>>> I have a render method for a table like so :-
>>>>
>>>> renderUser: aUser asRowOn: html
>>>>        |id|
>>>>
>>>>        id := 'bm-', aUser id asString.
>>>>
>>>>        html tableRow id: id; with:
>>>>                [html
>>>>                        tableData: [html anchor class: #underline;
>>>>                                                        onClick:((html jQuery: #ebmd) load html: [:r | r render: (self
>>>> editUserComponent: atUser id)]);
>>>>                                                        with: aUser userName];
>>>>                        tableData: aUser role;
>>>> .
>>>> .
>>>> .
>>>>
>>>> The onClick script calls a JQuery Dialog that pops up, and when I
>>>> click on Save, I fire an Announcement, that is registered in the same
>>>> component. The Announcement methods is like this :-
>>>>
>>>> addUser: aUser
>>>>        self pusher javascript: [ :script |
>>>>                script << (script jQuery: #usertable)
>>>>                        append: [:html | self renderUser: atUser asRowOn: html]
>>>>                ]
>>>>
>>>>
>>>> When the #renderUser is called from #addUser, and the tableData code
>>>> is invoked, I get an error. This is a partial stacktrace :-
>>>>
>>>> UndefinedObject(Object)>>doesNotUnderstand: #withoutParameters
>>>>        Receiver: nil
>>>>        Arguments and temporary variables:
>>>>                aMessage:       withoutParameters
>>>>                exception:      MessageNotUnderstood: UndefinedObject>>withoutParameters
>>>>                resumeValue:    nil
>>>>        Receiver''s instance variables:
>>>> nil
>>>>
>>>> JQLoad(JQAjax)>>enableCallbacks
>>>>        Receiver: $("#ebmd").load("/","")
>>>>        Arguments and temporary variables:
>>>>
>>>>        Receiver''s instance variables:
>>>>                owner:  $("#ebmd")
>>>>                options:        a WASmallDictionary
>>>>                callback:       nil
>>>>                callbackId:     nil
>>>>                selector:       nil
>>>>
>>>> JQLoad(JQAjax)>>callback:
>>>>        Receiver: $("#ebmd").load("/","")
>>>>        Arguments and temporary variables:
>>>>                aBlock:         [] in JQLoad(JQAjax)>>html: {[context := self
>>>> requestContext.  context ...etc...
>>>>        Receiver''s instance variables:
>>>>                owner:  $("#ebmd")
>>>>                options:        a WASmallDictionary
>>>>                callback:       nil
>>>>                callbackId:     nil
>>>>                selector:       nil
>>>>
>>>> JQLoad(JQAjax)>>html:
>>>>        Receiver: $("#ebmd").load("/","")
>>>>        Arguments and temporary variables:
>>>>                aBlock:         [] in BookmakerRootComponent>>renderUser:asRowOn: {[:r | r
>>>>  rende...etc...
>>>>                context:        nil
>>>>        Receiver''s instance variables:
>>>>                owner:  $("#ebmd")
>>>>                options:        a WASmallDictionary
>>>>                callback:       nil
>>>>                callbackId:     nil
>>>>                selector:       nil
>>>>
>>>>
>>>> If I comment out the tableData line, everything works fine. If I leave
>>>> in the tableData line, and comment out the Comet push script code,
>>>> everything is fine. Both pieces of code enabled, generates the error.
>>>>
>>>> Any help, most appreciated.
>>>> --
>>>> -JT
>>>> _______________________________________________
>>>> seaside mailing list
>>>> [hidden email]
>>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>>
>>>
>>>
>>>
>>> --
>>> Lukas Renggli
>>> http://www.lukas-renggli.ch
>>> _______________________________________________
>>> seaside mailing list
>>> [hidden email]
>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>
>>
>>
>>
>> --
>> -JT
>> _______________________________________________
>> seaside mailing list
>> [hidden email]
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>
>
>
>
> --
> Lukas Renggli
> http://www.lukas-renggli.ch
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>

> Still debugging this, but now I notice that the Comet Counter example
> no longer works, and I think this is since I loaded the latest Comet
> code. I don't see any errors, but the only way to get the counter to
> update, is to do a page refresh.
>
>
> On Wed, Apr 22, 2009 at 08:32, Lukas Renggli <[hidden email]> wrote:
>>> Do you mean that I should force a full page refresh on all the clients
>>>  when the server updates data? I see this error on the same session
>>> that caused the data to change.
>>
>> Not necessarily a full refresh. Just tigger a script that fetches the
>> appropriate update.
>>
>> With the given information I cannot reproduce the exact problem. If
>> you could post a ready to run example I am sure somebody could help.
>>
>> Lukas
>>
>>>
>>> Thanks.
>>>
>>> On Wed, Apr 22, 2009 at 02:56, Lukas Renggli <[hidden email]> wrote:
>>>> I cannot quite follow the real cause of the problem, but there is
>>>> definitely an issue here. You push out some JQuery code that contains
>>>> callbacks, these callbacks however refer to the session that created
>>>> the event.
>>>>
>>>> This is a general problem of Comet and could probably be solved by
>>>> generating different scripts for the different sessions, however there
>>>> is no mechanism right now that helps you with that. The way I used it
>>>> was to simply send a method call to the client to trigger a refresh.
>>>>
>>>> Lukas
>>>>
>>>> On Wed, Apr 22, 2009 at 4:47 AM, John Toohey <[hidden email]> wrote:
>>>>> I have a render method for a table like so :-
>>>>>
>>>>> renderUser: aUser asRowOn: html
>>>>>        |id|
>>>>>
>>>>>        id := 'bm-', aUser id asString.
>>>>>
>>>>>        html tableRow id: id; with:
>>>>>                [html
>>>>>                        tableData: [html anchor class: #underline;
>>>>>                                                        onClick:((html jQuery: #ebmd) load html: [:r | r render: (self
>>>>> editUserComponent: atUser id)]);
>>>>>                                                        with: aUser userName];
>>>>>                        tableData: aUser role;
>>>>> .
>>>>> .
>>>>> .
>>>>>
>>>>> The onClick script calls a JQuery Dialog that pops up, and when I
>>>>> click on Save, I fire an Announcement, that is registered in the same
>>>>> component. The Announcement methods is like this :-
>>>>>
>>>>> addUser: aUser
>>>>>        self pusher javascript: [ :script |
>>>>>                script << (script jQuery: #usertable)
>>>>>                        append: [:html | self renderUser: atUser asRowOn: html]
>>>>>                ]
>>>>>
>>>>>
>>>>> When the #renderUser is called from #addUser, and the tableData code
>>>>> is invoked, I get an error. This is a partial stacktrace :-
>>>>>
>>>>> UndefinedObject(Object)>>doesNotUnderstand: #withoutParameters
>>>>>        Receiver: nil
>>>>>        Arguments and temporary variables:
>>>>>                aMessage:       withoutParameters
>>>>>                exception:      MessageNotUnderstood: UndefinedObject>>withoutParameters
>>>>>                resumeValue:    nil
>>>>>        Receiver''s instance variables:
>>>>> nil
>>>>>
>>>>> JQLoad(JQAjax)>>enableCallbacks
>>>>>        Receiver: $("#ebmd").load("/","")
>>>>>        Arguments and temporary variables:
>>>>>
>>>>>        Receiver''s instance variables:
>>>>>                owner:  $("#ebmd")
>>>>>                options:        a WASmallDictionary
>>>>>                callback:       nil
>>>>>                callbackId:     nil
>>>>>                selector:       nil
>>>>>
>>>>> JQLoad(JQAjax)>>callback:
>>>>>        Receiver: $("#ebmd").load("/","")
>>>>>        Arguments and temporary variables:
>>>>>                aBlock:         [] in JQLoad(JQAjax)>>html: {[context := self
>>>>> requestContext.  context ...etc...
>>>>>        Receiver''s instance variables:
>>>>>                owner:  $("#ebmd")
>>>>>                options:        a WASmallDictionary
>>>>>                callback:       nil
>>>>>                callbackId:     nil
>>>>>                selector:       nil
>>>>>
>>>>> JQLoad(JQAjax)>>html:
>>>>>        Receiver: $("#ebmd").load("/","")
>>>>>        Arguments and temporary variables:
>>>>>                aBlock:         [] in BookmakerRootComponent>>renderUser:asRowOn: {[:r | r
>>>>>  rende...etc...
>>>>>                context:        nil
>>>>>        Receiver''s instance variables:
>>>>>                owner:  $("#ebmd")
>>>>>                options:        a WASmallDictionary
>>>>>                callback:       nil
>>>>>                callbackId:     nil
>>>>>                selector:       nil
>>>>>
>>>>>
>>>>> If I comment out the tableData line, everything works fine. If I leave
>>>>> in the tableData line, and comment out the Comet push script code,
>>>>> everything is fine. Both pieces of code enabled, generates the error.
>>>>>
>>>>> Any help, most appreciated.
>>>>> --
>>>>> -JT
>>>>> _______________________________________________
>>>>> seaside mailing list
>>>>> [hidden email]
>>>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Lukas Renggli
>>>> http://www.lukas-renggli.ch
>>>> _______________________________________________
>>>> seaside mailing list
>>>> [hidden email]
>>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>>
>>>
>>>
>>>
>>> --
>>> -JT
>>> _______________________________________________
>>> seaside mailing list
>>> [hidden email]
>>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>>
>>
>>
>>
>> --
>> Lukas Renggli
>> http://www.lukas-renggli.ch
>> _______________________________________________
>> seaside mailing list
>> [hidden email]
>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>
>
>
>
> --
> -JT
>