Re: "500 Internal Server Error" with cfajax function

[D L]

The cfajax function for data saving at intervals that Andrea created works like wonder for plain text data, however, it can't if one copy/paste a block of fancy Word doc for they are not Json-compliant, and when that happens, the infamous "500 Internal Server" err msg shows up. 

And since this data auto-saving is an extra, I don't mind it when it's not working for copy/pasting non-Json data but I would really want this "500 Internal Server" simply not show regardless because it scares users.  So, I'm wondering if there's a way to do it.  And if so how?

Thanks.

Don

On Wed, Nov 25, 2009 at 11:07 AM, D L <tatat...@gmail.com> wrote:

How could I disable this msg err regardless?

On Wed, Nov 25, 2009 at 10:32 AM, Andrea Campolonghi <acampo...@gmail.com> wrote:

Dl,

your server implementation thrown an error that is not hanlded and RailoAjax alert it to you.
That's the right implementation.

Andrea

2009/11/25 D L <tatat...@gmail.com>

ok, are you saying I need to implement error handling for the cfajax function call?  Thanks, Andrea.

On Wed, Nov 25, 2009 at 9:20 AM, Andrea Campolonghi <acampo...@gmail.com> wrote:

DL

The autosaving that you are implementing is not core RailoAjax code.
You need to hanlde the exception and manage that .

Andrea

2009/11/25 D L <tatat...@gmail.com>

Andrea, did I mis-communicate?    Don

On Tue, Nov 24, 2009 at 6:42 PM, D L <tatat...@gmail.com> wrote:

What I'd like to happen is:
even if the ajax auto-saving fails, no "500 Internal Server Error" err msg ( do not want this to show up ), that is, is there a way to disable it?

Don

On Tue, Nov 24, 2009 at 2:34 PM, Andrea Campolonghi <acampo...@gmail.com> wrote:

If server error comes out means a server error occurred in your code.
Check your ajax call with firebug.
Normally means a 500 error is returned

Andrea

2009/11/24 D L <tatat...@gmail.com>

Andrea,

Is there any way to disable this "Server Error" err msg when using the cfajax function to automatically save some text content? 

The error is happening when copy and paste content from a word processor like Word.

Thanks.

Don
Chunshen Li

--
Andrea Campolonghi

http://www.andreacfm.com
0039 347 2298435

--
Andrea Campolonghi

http://www.andreacfm.com
0039 347 2298435

--
Andrea Campolonghi

http://www.andreacfm.com
0039 347 2298435

[Peter Bell]

Write a javascript function to transform the data entered into something that is json safe?

--

You received this message because you are subscribed to the Google Groups "Railo" group.
To post to this group, send email to ra...@googlegroups.com.
To unsubscribe from this group, send email to railo+un...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/railo?hl=en.

[D L]

Thanks for the interesting thought, probably it's heavy-duty js scripting, if so, I'd prefer another option if possible.

[Peter Boughton]

Things like TinyMCE and FCKEditor have "Copy from Word" functionality
- have a look at the JavaScript source for one of those to see how
they have implemented it, and it might give you some clues on what you
need to do to convert Microsoft's fancy characters to the correct
Unicode alternatives.

[D L]

Neither of these two, TinyMCE and FCKEditor, would fit my need.  Have already looked into them a while ago.  Thanks though, Peter.

Don

[Andrea Campolonghi]

Don,

as I told you before the internal server error means a 500 error.
So means something is going bad in your application server code and not client side code.
So just check what is teh error thrown and catch it server side or client side.
Client side you have a callback functions that can catch that and silently skip that.

Andrea

2009/11/26 D L <tatat...@gmail.com>

[D L]

Andrea,

This "500 Internal Server Error" is not a show-stopper but I want it out.
Now, it seems I need to first evaluate data input to see if the data (typing in or copy/paste) is Json compliant (Good, we've got isjson function)
if not use the callback feature to disable the annoying msg or simply not to continue the process.

A slight hiccup, people,
how do I assign a HTML element to a Railo/cf var?
Then use I'll check it with
<cfif isjson(DataValidVar)>
// continue with the auto-saving function
</cfif>

Or another way, better?

Thanks.

Don

[Matt Quackenbush]

You don't. Perhaps you should invest in a javascript book or two.
Maybe even a JSON book. Or at the very least go and read through the
entire reference section at javascriptkit.com. It has all of the
information necessary to learn how to do what you are apparently
trying to do.

Sent from my iPhone

[Stefan]

Just a question here - what kind of characters do you get that is not
Json-compliant? Do you make a SerializeJson(fancyWordStuff) before
giving it to the Ajax thing?

S

On Nov 25, 10:08 pm, D L <tatata9...@gmail.com> wrote:
> The cfajax function for data saving at intervals that Andrea created works
> like wonder for plain text data, however, it can't if one copy/paste a block
> of fancy Word doc for they are not Json-compliant, and when that happens,
> the infamous "500 Internal Server" err msg shows up.
>
> And since this data auto-saving is an extra, I don't mind it when it's not
> working for copy/pasting non-Json data but I would really want this "500
> Internal Server" simply not show regardless because it scares users.  So,
> I'm wondering if there's a way to do it.  And if so how?
>
> Thanks.
>
> Don
>

> On Wed, Nov 25, 2009 at 11:07 AM, D L <tatata9...@gmail.com> wrote:
> > How could I disable this msg err regardless?
>
> > On Wed, Nov 25, 2009 at 10:32 AM, Andrea Campolonghi <
> > acampolon...@gmail.com> wrote:
>
> >> Dl,
>
> >> your server implementation thrown an error that is not hanlded and
> >> RailoAjax alert it to you.
> >> That's the right implementation.
>
> >> Andrea
>

> >> 2009/11/25 D L <tatata9...@gmail.com>

>
> >>> ok, are you saying I need to implement error handling for the cfajax
> >>> function call?  Thanks, Andrea.
>
> >>> On Wed, Nov 25, 2009 at 9:20 AM, Andrea Campolonghi <
> >>> acampolon...@gmail.com> wrote:
>
> >>>> DL
>
> >>>> The autosaving that you are implementing is not core RailoAjax code.
> >>>> You need to hanlde the exception and manage that .
>
> >>>> Andrea
>

> >>>> 2009/11/25 D L <tatata9...@gmail.com>

>
> >>>> Andrea, did I mis-communicate?    Don
>

> >>>>> On Tue, Nov 24, 2009 at 6:42 PM, D L <tatata9...@gmail.com> wrote:
>
> >>>>>> What I'd like to happen is:
> >>>>>> even if the ajax auto-saving fails, no "500 Internal Server Error" err
> >>>>>> msg ( do not want this to show up ), that is, is there a way to disable it?
>
> >>>>>> Don
>
> >>>>>> On Tue, Nov 24, 2009 at 2:34 PM, Andrea Campolonghi <
> >>>>>> acampolon...@gmail.com> wrote:
>
> >>>>>>> If server error comes out means a server error occurred in your code.
> >>>>>>> Check your ajax call with firebug.
> >>>>>>> Normally means a 500 error is returned
>
> >>>>>>> Andrea
>

> >>>>>>> 2009/11/24 D L <tatata9...@gmail.com>

[D L]

Interesting thought of using SerializeJson.  A related question, how to map an HTML element to a Railo var?

Thanks.

[Stefan]

Why would you like to do that?
<cfset div = '<div>'> ?
I do not understand the question...
Do you want to map DOM nodes to variables? What is the end goal?

S

On Nov 26, 9:41 pm, D L <tatata9...@gmail.com> wrote:
> Interesting thought of using SerializeJson.  A related question, how to map
> an HTML element to a Railo var?
>
> Thanks.
>

> > railo+un...@googlegroups.com <railo%2Bunsu...@googlegroups.com>.

[D L]

The end goal is to evaluate if the value of a DOM node that may contain fancyWordData is JSON compliant using isjason function, if not, do not attempt to do  automatically saving of the the data using cfjax tag developed by Adrea, otherwise, go ahead / continue the process.

And since the interface uses iframe for wysiwyg feature, I map the iframe data to a hidden form field.  And since the auto saving event is triggered 3000ms after loading the page, Probably the server side  <cfset div = '<div>'>  would not be applicable here.

Let me know if you would like me to post the code for clarity.

Thanks.

To unsubscribe from this group, send email to railo+un...@googlegroups.com.

[Stefan]

Ok. When you save that data manually, it works fine?
Try to send SerializeJson(myData) to the ajax function, the use
DeserializeJson on the page, or in the component, that recieves the
data. It should work fine. I assume you use <cfqueryparam> when you
insert it into the database, so all kind of quotes and things are
handled?

CF can not handle DOM, if you want to analyze which data to save and
which not to save, you could use a regular expression to find out if
there is characters that are out of order, but as I said,
SerializeJson should escape all those characters so that they can be
safely sent.

I have not seen the autosave component, so maybe I am totally off
track here, but then again, maybe not :)

Good luck

Stefan

On Nov 26, 11:16 pm, D L <tatata9...@gmail.com> wrote:
> The end goal is to evaluate if the value of a DOM node that may contain
> fancyWordData is JSON compliant using isjason function, if not, do not
> attempt to do  automatically saving of the the data using cfjax tag
> developed by Adrea, otherwise, go ahead / continue the process.
>
> And since the interface uses iframe for wysiwyg feature, I map the iframe
> data to a hidden form field.  And since the auto saving event is triggered
> 3000ms after loading the page, Probably the server side  <cfset div =
> '<div>'>  would not be applicable here.
>
> Let me know if you would like me to post the code for clarity.
>
> Thanks.
>

> > railo%2Bunsu...@googlegroups.com<railo%252Buns...@googlegroups.com>

[Stefan]

By the way, a DOM node is never JSON, so it is useless to evaluate it.
Make it JSON instead, then it is :)

[D L]

Not off track at all.   You've just confimed some critical info, "CF can not handle DOM".
Here's the overall flow of "this thing"

goal: (explained)

cf code:
in the main code there's a line calling the Andrea's cfajaxproxy to do the automatic data saving routine at an interval
.. html form for user data input etc.

js code:
say, the data field is called myData
once again, we need to check this guy before sending it out to the data saving subroutine.
and since as you mentioned CF can't handle DOM, exactly as I thought, we could try RegExp inside the js code to do, probably, a similar job as isjson function,

So, how do we do this RegExp data validation for document.getElementById('myData').value to see if it's json compliant.

Many thanks.

Don
P.S. a side note, since the js code uses try and catch, thought, I could customize the default exception return with
var n = '';
return n;

instead of

return

But to no avail.

To unsubscribe from this group, send email to railo+un...@googlegroups.com.

[Matt Quackenbush]

As I already stated, you _really_ need to invest in some javascript
knowledge. And no, repeatedly asking people to write copy and paste
code for you does not qualify as an investment or learning. I sure as
hell wish everyone would stop providing copy and paste code.

Happy Thanksgiving. :-)

[Stefan]

Seriously, forget about regexp and everything, just do SerializeJson
on it. Is that a problem? The AJAX function wants JSON, give it JSON.
Everyone is happy :)
CF can not handle DOM because DOM is a structure in itself and must be
treated as that. HTML code, that you have, is just a string and that
string is parsed by the browser into a DOM tree. It would certainly be
possible to write a CF parser that could do it, but hardly useful,
specially not in your case since all you need is to escape all
characters that can be misunderstood by the transporter and the
reciever. And that job is done by SerializeJson().

> > > > railo%2Bunsu...@googlegroups.com<railo%252Buns...@googlegroups.com>
> > <railo%252Buns...@googlegroups.com<railo%25252Bun...@googlegroups.com>

[D L]

How do you SerializeJson 
document.getElementById('myData').value
?

at js level.  Isn't serializejson a railo function?

To unsubscribe from this group, send email to railo+un...@googlegroups.com.

[Peter Boughton]

Not sure if this will fit in with what you're doing, but jQuery has a
serialize function that will produce a URL encoded string, which you
should then be able to pass as a JSON string, and then on the CF side
you just add a UrlDecode to get values back as entered by the user.

[D L]

User input data using a form, are you saying we need to pass form data sets to urls?  if so how convoluted?

[Peter Boughton]

Nope, don't need to use the form data as URLs themselves (although you
can*), it's just a simple way to ensure the data will be valid JSON,
since URL encoding is both simpler and stricter.

*I actually find it much simpler to send data like this:

var data= $j('#myform').serialize();

$j.getJSON( 'mywebservice.cfc?method=doStuff' , data , callback )

jQuery sends that over HTTP as URL name/value pairs, but CF passes it
directly into the function's arguments, and in response I still send
back JSON which jQuery converts into JS object.

But, if you've got an existing json input method to use, you can just
send it via that, and add a single UrlDecode function on the CF side -
an extra step, but not convoluted.

[Stefan]

It is a Railo function, but most (all) javascript libraries have
something like that with maybe another name. Actually, now when I
think about it, I just assume they do. I use dojo and there I do
dojo.toJson(data).
If your library does not support it, there must be plenty of
javascript snippets on the web that can serialize json. Note that in
your case you do not really need to "serialize" it, since it is just a
string, but but they will still turn into a JSON compliant string.
Just remember to deserialize it as soon as Railo get hold of it again
on the other end.

On Nov 27, 1:02 am, D L <tatata9...@gmail.com> wrote:
> How do you SerializeJson
> document.getElementById('myData').value
> ?
>
> at js level.  Isn't serializejson a railo function?
>

> > > > > > railo%2Bunsu...@googlegroups.com<railo%252Buns...@googlegroups.com>
> > <railo%252Buns...@googlegroups.com<railo%25252Bun...@googlegroups.com>
>
> > > > <railo%252Buns...@googlegroups.com<railo%25252Bun...@googlegroups.com>
> > <railo%25252Bun...@googlegroups.com<railo%2525252Bu...@googlegroups.com>
>
> > > > > > >.
>
> ...
>
> read more »

[Stefan]

Here: http://www.json.org/json2.js

[D L]

I'd prefer to stick the cfajaxproxy tag without introducing anything new to it, it seems this extra feature of auto-data saving is very costly...

http://wiki.getrailo.org/wiki/3-1-Tags:CFAjaxProxy

I don't understand why it's so tough to disable a server msg.

[Stefan]

You want to hide the error rather than handle it? ;)
That js script above does not add anything new to CFAJAXPROXY, it just
allows you JSONify the string before giving it to the javascript
method that CFAJAXPROXY creates.

Instead if myProxy.myMethod(myWildData) you do
myProxy.myMethod( JSON.stringify(myWildData)), if you have included
the script http://www.json.org/json2.js

S

On Nov 27, 1:46 am, D L <tatata9...@gmail.com> wrote:
> I'd prefer to stick the cfajaxproxy tag without introducing anything new to
> it, it seems this extra feature of auto-data saving is very costly...
>
> http://wiki.getrailo.org/wiki/3-1-Tags:CFAjaxProxy
>
> I don't understand why it's so tough to disable a server msg.
>

> ...
>
> read more »

[D L]

Yes,  I'd prefer to hide/disable the error, user can always use the [SAVE] to save the data anyway, the auto-saving is an extra.   Also, auto-saving works fine for simple text ...

Current code looks like this.

<html>
<head>
<title>Do stuff</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<script type="text/javascript">
    function autoSave(){
try {
    var d = new DraftObj();
    ...
    document.getElementById('myData').value = Editor1.body.innerHTML;
  ...
            d.setErrorHandler(err());
            // 11/26
            // d.setReturnFormat('xml');
         d.setForm('frm1');
        d.setHTTPMethod('POST')
        d.saveDraft();
        autoSaveEvery(180000);
   
     }   
            
      catch(exception) {
      // exit from the save routine
          return;
      }       
}

function err() {
 // do nothing
 var n='';
 // alert(n);
}
   
function autoSaveEvery(ms) {
    var timeout=setTimeout("autoSave()",ms);
}

      setTimeout('autoSaveEvery(18000)',3000);   
</script>

</head>
<body>

<cfajaxproxy cfc="autoSaveMyData" jsclassname="DraftObj"/>

<form...>

...
<iframe id="text1" name="text1" onload="document.frames['tex1'].document.designMode='on';" contenteditable="true"></iframe><br/>                 
...

<input type="hidden" id="myData" name="myData" />

</form>

</body>
</html>


Thanks.

> ...
>
> read more »

[Stefan]

Then just include the script I linked to and

document.getElementById('myData').value = JSON.stringify
(Editor1.body.innerHTML);

done :)

> On Thu, Nov 26, 2009 at 8:03 PM, Stefan <stefan.vesterl...@googlemail.com>wrote:
>
> > You want to hide the error rather than handle it? ;)
> > That js script above does not add anything new to CFAJAXPROXY, it just
> > allows you JSONify the string before giving it to the javascript
> > method that CFAJAXPROXY creates.
>
> > Instead if myProxy.myMethod(myWildData) you do
> > myProxy.myMethod( JSON.stringify(myWildData)), if you have included

> > the scripthttp://www.json.org/json2.js

> > railo+un...@googlegroups.com <railo%2Bunsu...@googlegroups.com>.

[D L]

I just tried, unfortunately it didn't work.
include the jason2.js first
include the auto-saving,js

sample header and data returned after JASON.stringify(fancyWordData).

"\"<meta http-equiv=\\\"Content-Type\\\" content=\\\"text/html; charset=utf-8\\\"><meta name=\\\"ProgId\\\" content=\\\"Word.Document\\\"><meta name=\\\"Generator\\\" content=\\\"Microsoft Word 9\\\"><meta name=\\\"Originator\\\" content=\\\"Microsoft Word 9\\\"><link rel=\\\"File-List\\\" href=\\\"file:///C:/DOCUME%7E1/donli/LOCALS%7E1/Temp/msoclip1/03/clip_filelist.xml\\\"><!--[if gte mso 9]><xml>\\u000a <w:WordDocument>\\u000a <w:View>Normal</w:View>\\u000a <w:Zoom>0</w:Zoom>\\u000a <w:DoNotOptimizeForBrowser/>\\u000a </w:WordDocument>\\u000a</xml><![endif]--><style>\\u000a<!--\\u000a /* Font Definitions */\\u000a@font-face\\u000a\\u0009{font-family:Verdana;\\u000a\\u0009panose-1:2 11 6 4 3 5 4 4 2 4;\\u000a\\u0009mso-font-charset:0;\\u000a\\u0009mso-generic-font-family:swiss;\\u000a\\u0009mso-font-pitch:variable;\\u000a\\u0009mso-font-signature:536871559 0 0 0 415 0;}\\u000a@font-face\\u000a\\u0009{font-family:\\\"Arial Unicode MS\\\";\\u000a\\u0009mso-font-charset:128;\\u000a\\u0009mso-generic-font-family:swiss;\\u000a\\u0009mso-font-pitch:variable;\\u000a\\u0009mso-font-signature:-1 -369098753 63 0 4129279 0;}\\u000a@font-face\\u000a\\u0009{font-family:\\\"\\\\@Arial Unicode MS\\\";\\u000a\\u0009mso-font-charset:128;\\u000a\\u0009mso-generic-font-family:swiss;\\u000a\\u0009mso-font-pitch:variable;\\u000a\\u0009mso-font-signature:-1 -369098753 63 0 4129279 0;}\\u000a /* Style Definitions */\\u000ap.MsoNormal, li.MsoNormal, div.MsoNormal\\u000a\\u0009{mso-style-parent:\\\"\\\";\\u000a\\u0009margin:0in;\\u000a\\u0009margin-bottom:.0001pt;\\u000a\\u0009mso-pagination:widow-orphan;\\u000a\\u0009font-size:12.0pt;\\u000a\\u0009font-family:\\\"Times New Roman\\\";\\u000a\\u0009mso-fareast-font-family:\\\"Times New Roman\\\";}\\u000ap\\u000a\\u0009{margin-right:0in;\\u000a\\u0009mso-margin-top-alt:auto;\\u000a\\u0009mso-margin-bottom-alt:auto;\\u000a\\u0009margin-left:0in;\\u000a\\u0009mso-pagination:widow-orphan;\\u000a\\u0009font-size:9.0pt;\\u000a\\u0009font-family:Verdana;\\u000a\\u0009mso-fareast-font-family:\\\"Arial Unicode MS\\\";\\u000a\\u0009mso-bidi-font-family:\\\"Arial Unicode MS\\\";}\\u000a@page Section1\\u000a\\u0009{size:8.5in 11.0in;\\u000a\\u0009margin:1.0in 1.25in 1.0in 1.25in;\\u000a\\u0009mso-header-margin:.5in;\\u000a\\u0009mso-footer-margin:.5in;\\u000a\\u0009mso-paper-source:0;}\\u000adiv.Section1\\u000a\\u0009{page:Section1;}\\u000a-->\\u000a</style>\\u000a\\u000a<p>
<strong>
...

</p>\\u000a\\u000a<p class=\\\"MsoNormal\\\"><!--[if !supportEmptyParas]-->&nbsp;<!--[endif]--><o:p></o:p></p>\\u000a\\u000a\"


Do you know if there's a way to simply disable the freaking server message?

To unsubscribe from this group, send email to railo+un...@googlegroups.com.

[D L]

I'm wondering if there's a function to simply check if the data is simple enough, i.e.
"this is a simple text string"
"this is a slightly less <b>simpler</b> text string"
"this is a slightly <font color="red">fancy</font> text string"

if pass continue to perform auto-saving
else
stop

Thanks.

[Andrea Campolonghi]

DL.

What is the error underlying the InternalServerError ??

Try catch teh error on server side.

Try

Code

catch

return empyt json or what you like to

Andrea

2009/11/27 D L <tatat...@gmail.com>

[Stefan]

Seem to work perfectly. Can you not send it? Does it still give you a
500?

[D L]

"500 Internal Server Error".   It's your ajax tag for a client side solution and the js code does have Try and Catch routine, on the server side Try and Catch, if what you were saying were,
<CFTRY>
<cfajaxproxy ... />
<cfcatch .../>
</CFTRY>

Not sure it would solve the problem since there's no problem calling the cfajaxproxy tag but to CUSTOMIZE the Server ERROR or better SIMPLY NOT TO RETURN SERVER ERROR.

[D L]

It complained that it's not JSON data.  My ENV: Railo 3.1.1.017 on Windows XP home edition.

[James Holmes]

Seriously, my brain hurts reading these threads.

mxAjax / CFAjax docs and other useful articles:
http://www.bifrost.com.au/blog/

2009/11/27 D L <tatat...@gmail.com>:

[Emmet McGovern]

Amen!

Regards,
Emmet McGovern

Full City Media
12703 Sunset Ave., Ste. 8
Ocean City, MD 21842
support. (866) 473-7808 ext. 101

On Nov 27, 2009, at 10:42 AM, James Holmes <james....@gmail.com>
wrote:

> --
>
> You received this message because you are subscribed to the Google
> Groups "Railo" group.
> To post to this group, send email to ra...@googlegroups.com.
> To unsubscribe from this group, send email to railo+un...@googlegroups.com