[Seaside] Weird back button problem
Lawrence Kellogg
mac.hive at me.com
Fri Apr 6 20:18:24 UTC 2012
Hello Bob,
I installed this code and went though all of the interfaces on my site. I only hit the halt once so I guess most of my code is ok.
I took out the extra form and don't hit this halt anymore. Thanks.
Regards,
Larry
On Apr 6, 2012, at 9:17 AM, Bob Arning wrote:
> This might help spot such problems:
>
> WAFormTag>>with:
>
> with: aBlock
>
> | uniqueMessage |
>
> uniqueMessage _ 'starting a form'.
> Notification signal: uniqueMessage.
> [
> super with: aBlock
> ] on: Notification do: [ :ex |
> ex messageText = uniqueMessage ifTrue: [self halt].
> ex pass
> ]
>
> Cheers,
> Bob
>
> On 4/6/12 7:38 AM, Lawrence Kellogg wrote:
>> On Apr 6, 2012, at 7:05 AM, Johan Brichau wrote:
>>
>>> Larry,
>>>
>>> I'm really answering off the top of my head now, but nested html forms are indeed not allowed. It's likely that this is causing the trouble.
>>>
>>> You might consider replacing the cancel button with a cancel link (i.e. an anchor with 'cancel'). That probably will give you the behavior you are looking for.
>>> I'm never using a cancel button because we do it with links throughout the application.
>> Yes, that is it! It works after I changed the 'html cancelButton' to 'html anchor'. Thanks, I never would have gotten that on my own.
>>
>> I am a little confused about whether I nest html forms or not. I have so many different components with html form in them that I must be nesting forms. So, there should only one html form: for the entire page? Perhaps I can refactor my code to make that happen, although everything seems to work pretty well as it is written. What goes wrong when forms are nested?
>>
>> Regards,
>>
>> Larry
>>
>>
>>
>>>
>>>
>>> On 06 Apr 2012, at 12:48, Lawrence Kellogg wrote:
>>>
>>>> Johan,
>>>> Unfortunately, changing it from value: to with: does not make any difference, the bug is still there. I looked through my code and it looks like I am calling html form: for all the resources I am rendering, as far as I can tell.
>>>>
>>>> Does this snippet of code provide any clue?
>>>> ….
>>>> <form accept-charset="utf-8" method="post" action="/PracticeJournalLoginTask?_s=MQjCWJGC8kOo0deT&_k=ZS373GZpYr33sacc"><br/>
>>>> <input class="btn submit" name="12" value="Back" type="submit"/>
>>>> <br/><br/><br/>
>>>> <form accept-charset="utf-8" method="post" action="/PracticeJournalLoginTask?_s=MQjCWJGC8kOo0deT&_k=ZS373GZpYr33sacc"><object>
>>>> <param name="width" value="586"></param>
>>>> <param name="height" value="355"></param>
>>>> <param name="movie" value="http://www.youtube.com/v/PIlDmg2iFgA?fs=1&hl=es&rel=0&cc_load_policy=1&cc_lang_pref=es&version=3"></param><param name="cc_load_policy" value="1"></param>
>>>> <param name="allowFullScreen" value="false"></param><param name="allowScriptAccess" value="always"></param>
>>>> <embed src="http://www.youtube.com/v/PIlDmg2iFgA?fs=1&hl=es&rel=0&cc_load_policy=1&cc_lang_pref=es&version=3" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="false" width="586" height="355"></embed></object><br/></form><br/>
>>>>
>>>> <input class="btn submit" name="13" value="Back" type="submit"/><br/></form></div></div><div class="wa-toolbar"></div>
>>>>
>>>> <script type="text/javascript">/*<![CDATA[*/function onLoad(){};/*]]>*/</script></body></html>
>>>>
>>>> Regards,
>>>>
>>>> Larry
>>>> www.practicemusic.com
>>>>
>>>> On Apr 6, 2012, at 6:35 AM, Johan Brichau wrote:
>>>>
>>>>> It's a guess but did you try replacing
>>>>>
>>>>> value: 'Back'
>>>>>
>>>>> with
>>>>>
>>>>> with: 'Back'
>>>>>
>>>>> ?
>>>>>
>>>>> Otherwise, a snippet of the 'weird rendering' might help
>>>>>
>>>>> Johan
>>>>>
>>>>> On 05 Apr 2012, at 23:10, Lawrence Kellogg wrote:
>>>>>
>>>>>> Hello,
>>>>>> I noticed a weird issue with rendering the Back button. If I have
>>>>>>
>>>>>> renderBackButtonOn: html
>>>>>> html break.
>>>>>> html cancelButton
>>>>>> class: 'btn';
>>>>>> callback: [ self back ];
>>>>>> value: 'Back'.
>>>>>> html break
>>>>>>
>>>>>> and this:
>>>>>>
>>>>>> back
>>>>>> self answer: false
>>>>>>
>>>>>> and then this:
>>>>>>
>>>>>> html
>>>>>> form: [
>>>>>> self renderBackButtonOn: html.
>>>>>>
>>>>>> self resources do: [: each | html render: each].
>>>>>>
>>>>>> self renderBackButtonOn: html].
>>>>>>
>>>>>>
>>>>>> I often see the case where the first rendering of the Back button works correctly, but the last render does not work. I press the button and nothing happens. Any idea what is going on here?
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Larry Kellogg
>>>>>> www.practicemusic.com
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