[Seaside] Re: passing json between seaside and javascript

[sergio_101]

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 at gmail.com> 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!
> >
> > _______________________________________________
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>
> > seaside at .squeakfoundation
>
> > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>
>
>
>
>
> --
> View this message in context: http://forum.world.st/passing-
> json-between-seaside-and-javascript-tp4799930p4800031.html
> Sent from the Seaside General mailing list archive at Nabble.com.
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