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SPENDLOVE, Matt, GBM

2006-Apr-28 09:43 UTC

Serialize / deserialize an associative array

Perhaps I missed something but I don''t see an easy way to do this ?

Basically just wanna hold some ui state in a cookie.

Did I miss something obvious ?

Best

Matt

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Ryan Gahl

2006-Apr-28 14:06 UTC

head link

Re: Serialize / deserialize an associative array

As long as the array/object has not been touched by the prototype code (and
thus would add properties to the object), the below should put you on the
right track. I''m assuming you meant associative arrays as in
"javascript
treats all objects as associative arrays" and not the Array type object
(which in that case you''d just use a prototype .each() iterator to do
this)...

var obj = {firstKey: firstVal, secondKey: secondVal};
var objStr = '''';
for (var p in obj)
{
objStr = objStr + p + ":" + obj[p] + "|";
}

// ...now strip the last "|" symbol and you have your object as a
string
delimited by : for name/value pairs and | between the sets of values.

prototype''s .flatten() might help also but I haven''t used it
too much.

On 4/28/06, SPENDLOVE, Matt, GBM
<Matt.SPENDLOVE-ge51qsjLezM@public.gmane.org>
wrote:>
> Perhaps I missed something but I don''t see an easy way to do this
?
>
> Basically just wanna hold some ui state in a cookie.
>
> Did I miss something obvious ?
>
> Best
>
> Matt
>
>
>
***********************************************************************************
> The Royal Bank of Scotland plc. Registered in Scotland No 90312.
> Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB.
> Authorized and regulated by the Financial Services Authority
>
> This e-mail message is confidential and for use by the
> addressee only. If the message is received by anyone other
> than the addressee, please return the message to the sender
> by replying to it and then delete the message from your
> computer. Internet e-mails are not necessarily secure. The
> Royal Bank of Scotland plc does not accept responsibility for
> changes made to this message after it was sent.
>
> Whilst all reasonable care has been taken to avoid the
> transmission of viruses, it is the responsibility of the recipient to
> ensure that the onward transmission, opening or use of this
> message and any attachments will not adversely affect its
> systems or data. No responsibility is accepted by The Royal
> Bank of Scotland plc in this regard and the recipient should carry
> out such virus and other checks as it considers appropriate.
> Visit our websites at:
> http://www.rbos.com
> http://www.rbsmarkets.com
>
>
***********************************************************************************
> _______________________________________________
> Rails-spinoffs mailing list
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> http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
>

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SPENDLOVE, Matt, GBM

2006-Apr-28 14:39 UTC

head link

RE: Serialize / deserialize an associative array

That''s pretty much what I did in the end anyway. Didn''t have
any joy with
flatten()..

----------------------------------------------------------------------------
------------------------
var CradleUtils = {};

/**
 * These are REALLY simple serialisation tools meant for simple Hash-like
objects in the for key=val
 */
CradleUtils.deserialize function(inStr)
{
    return eval(''(''+inStr+'')'');
}

CradleUtils.serialize function(inObj)
{
    var buf = ''{'';
    var cma = '''';
    for (i in inObj)
    {
        buf += cma + i + " : "+inObj[i];
        cma = '','';
    }

    buf += ''}'';

    printfire(''serialized [''+buf+'']'');
    return buf;
}
----------------------------------------------------------------------------
------------------------

Example Object :

var PANELS = {''a'' : true,''b'' :
false,''c'' : true,''d'' : true};

----------------------------------------------------------------------------
------------------------

As you say, I am not realy sure of the behaviour for more complex objects. I
used these to set a string value In a cookie to maintain the ui panel
state..

Matt



-----Original Message-----
From: rails-spinoffs-bounces-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
[mailto:rails-spinoffs-bounces-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org]
On Behalf Of Ryan Gahl
Sent: 28 April 2006 15:06
To: rails-spinoffs-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
Subject: Re: [Rails-spinoffs] Serialize / deserialize an associative array


As long as the array/object has not been touched by the prototype code (and
thus would add properties to the object), the below should put you on the
right track. I''m assuming you meant associative arrays as in
"javascript
treats all objects as associative arrays" and not the Array type object
(which in that case you''d just use a prototype .each() iterator to do
this)... 

var obj = {firstKey: firstVal, secondKey: secondVal};
var objStr = '''';
for (var p in obj)
{

objStr = objStr + p + ":" + obj[p] + "|";

}

// ...now strip the last "|" symbol and you have your object as a
string
delimited by : for name/value pairs and | between the sets of values.

prototype''s .flatten() might help also but I haven''t used it
too much.


On 4/28/06, SPENDLOVE, Matt, GBM
<Matt.SPENDLOVE-ge51qsjLezM@public.gmane.org> wrote:
Perhaps I missed something but I don''t see an easy way to do this ?

Basically just wanna hold some ui state in a cookie.

Did I miss something obvious ?

Best

Matt

****************************************************************************
******* 
The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered
Office: 36 St Andrew Square, Edinburgh EH2 2YB.
Authorized and regulated by the Financial Services Authority

This e-mail message is confidential and for use by the 
addressee only. If the message is received by anyone other
than the addressee, please return the message to the sender
by replying to it and then delete the message from your
computer. Internet e-mails are not necessarily secure. The 
Royal Bank of Scotland plc does not accept responsibility for
changes made to this message after it was sent.

Whilst all reasonable care has been taken to avoid the
transmission of viruses, it is the responsibility of the recipient to 
ensure that the onward transmission, opening or use of this
message and any attachments will not adversely affect its
systems or data. No responsibility is accepted by The Royal
Bank of Scotland plc in this regard and the recipient should carry 
out such virus and other checks as it considers appropriate.
Visit our websites at:
http://www.rbos.com
http://www.rbsmarkets.com
****************************************************************************
******* 
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Martin Bialasinski

2006-Apr-28 14:56 UTC

head link

Re: Serialize / deserialize an associative array

On 4/28/06, SPENDLOVE, Matt, GBM
<Matt.SPENDLOVE-ge51qsjLezM@public.gmane.org>
wrote:> That''s pretty much what I did in the end anyway. Didn''t
have any joy with
> flatten()..
There is also Hash.toQueryString() and
String.prototype.toQueryParams(). Mind the fix from for the later,
laying around in the bug tracker.
> As you say, I am not realy sure of the behaviour for more complex objects.
The Javascript implementation of a JSON de-/encoder by Douglas
Crockford should do the trick. http://www.json.org/js.html

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