[Seaside] Re: passing json between seaside and javascript

[Paul DeBruicker]

Umm you could paste it in your image for now.  The code I sent should work
fine.

It was just an oversight likely from how the packages were reorganized.





sergio_101 wrote
> dang! is there any way to get that back into the framework?
> 
> On Fri Jan 16 2015 at 2:31:41 PM Paul DeBruicker <

> pdebruic@

> > wrote:
> 
>> JQAjax used to have callback:json: but it got lost in the Seaside 3.1
>> reshuffle.  I think it does what you want.
>>
>>
>> JQAjax>>callback: aBlock json: anObject
>>         "Register aBlock as a secondary callback. anObject is a reference
>> to a
>> Javascript object on the client-side. anObject will be serialized to a
>> JSON
>> string, sent back to the server, deserialized from JSON to nested
>> Smalltalk
>> objects, and result passed into aBlock.
>>
>>         Note: The serialization of Javascript objects to JSON requires a
>> modern web
>> browser with native JSON support or the JSJsonDeploymentLibrary to be
>> loaded. Objects that recursively refer to themselves and objects that
>> contain or objects that contain methods might not be serializable and
>> cause
>> the web browser to loop inifinitely or throw an exception."
>>
>>         self
>>                 callback: [ :value | aBlock value: (JSJsonParser parse:
>> value) ]
>>                 value: (JSJson new stringify: anObject)
>>
>>
>>
>>
>>
>> sergio_101 wrote
>> > i accidentally sent this to the pharo group, rather than this group..
>> so
>> i
>> > hope they forgive me over there. anyway:
>> >
>> > i am currently working on an app that uses a javascript library to
>> render
>> > the state of an object inside seaside. i am trying to figure out the
>> best
>> > way to transfer the state of object to javascript.
>> >
>> > the state of the machine changes via form inputs and ajax.
>> >
>> > i already have the code to convert the state of my object to json, so i
>> am
>> > thinking i can do this one of two ways..
>> >
>> > via ajax, inject the json code into a variable in a function that is
>> fired
>> > off by ajax. i just am not sure how to inject this json string into the
>> > page where it would look like the contents of a variable. any ideas?
>> >
>> > or, i could make a component that just spits out the current state as a
>> > json string. this way, when the value of a form element changes, that
>> > value
>> > is sent over ajax to seaside, and seaside can answer back with the new
>> > state as a json string. i am just not sure how to implement this,
>> either.
>> > any ideas?
>> >
>> > let me know if there is a better approach to this, also.
>> >
>> > thanks!
>> >
>> > _______________________________________________
>> > seaside mailing list
>>
>> > seaside at .squeakfoundation
>>
>> > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>>
>>
>>
>>
>>
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>> 

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>>
> 
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