[tw] Re: Hijacking saveTiddler

2011-12-15 Thread rakugo 
I should also say take care when hijacking where you don't completely
know what you are doing. If you do it wrong you could break the
function. In this situation that means it would be impossible to save
any tiddlers... so take backups :)

On Dec 15, 1:47 am, skye riquelme riquelme.s...@gmail.com wrote:
 Ooopa..now thats exactly what I wanted to know. now to work to
 see if I can get it woring as I want.

 Thanks
 Skye

 On 14 dez, 08:18, rakugo jdlrob...@gmail.com wrote:







  Hijack does seem to be the right word. The idea with hijacking is

  // cache the old value of the function
  var _cache = TiddlyWiki.prototype.saveTiddler;
  // override the existing value
  TiddlyWiki.prototype.saveTiddler =
  function(title,newTitle,newBody,modifier,modified,tags,fields,clearChangeCo 
  ­unt,created,creator)
  {
          // do something new
          alert(!);
          // apply the old value
          return _cache.apply(this, arguments);

  };

  Hope this helps...
  Jon

  On Dec 14, 4:00 am, skye riquelme riquelme.s...@gmail.com wrote:

   Hi All

   Not sure if Hijacking ids the right term in this case. Basically I
   want to modify the saveTiddler macro so that when a student saves a
   tiddler. the saveTiddler also does something else...in this case
   executes another macro that sends a message to my server..and
   maybe emails me a message. ths would be for specific
   tiddlers...not ALL!

   So how to hijack the saveTiddler macro to my ends...where is it
   in the core?

   Thanks
   Skye

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[tw] Re: Hijacking saveTiddler

2011-12-15 Thread skye riquelme 
...thanks even more so for the advice...obviously Ill play around with
a simple non-importante test TW first!!!

and thanks for the warning/advice

Skye

On 15 dez, 12:36, rakugo jdlrob...@gmail.com wrote:
 I should also say take care when hijacking where you don't completely
 know what you are doing. If you do it wrong you could break the
 function. In this situation that means it would be impossible to save
 any tiddlers... so take backups :)

 On Dec 15, 1:47 am, skye riquelme riquelme.s...@gmail.com wrote:







  Ooopa..now thats exactly what I wanted to know. now to work to
  see if I can get it woring as I want.

  Thanks
  Skye

  On 14 dez, 08:18, rakugo jdlrob...@gmail.com wrote:

   Hijack does seem to be the right word. The idea with hijacking is

   // cache the old value of the function
   var _cache = TiddlyWiki.prototype.saveTiddler;
   // override the existing value
   TiddlyWiki.prototype.saveTiddler =
   function(title,newTitle,newBody,modifier,modified,tags,fields,clearChangeCo
­unt,created,creator)
   {
           // do something new
           alert(!);
           // apply the old value
           return _cache.apply(this, arguments);

   };

   Hope this helps...
   Jon

   On Dec 14, 4:00 am, skye riquelme riquelme.s...@gmail.com wrote:

Hi All

Not sure if Hijacking ids the right term in this case. Basically I
want to modify the saveTiddler macro so that when a student saves a
tiddler. the saveTiddler also does something else...in this case
executes another macro that sends a message to my server..and
maybe emails me a message. ths would be for specific
tiddlers...not ALL!

So how to hijack the saveTiddler macro to my ends...where is it
in the core?

Thanks
Skye

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[tw] Re: Hijacking saveTiddler

2011-12-14 Thread rakugo 
Hijack does seem to be the right word. The idea with hijacking is

// cache the old value of the function
var _cache = TiddlyWiki.prototype.saveTiddler;
// override the existing value
TiddlyWiki.prototype.saveTiddler =
function(title,newTitle,newBody,modifier,modified,tags,fields,clearChangeCount,created,creator)
{
// do something new
alert(!);
// apply the old value
return _cache.apply(this, arguments);
};

Hope this helps...
Jon

On Dec 14, 4:00 am, skye riquelme riquelme.s...@gmail.com wrote:
 Hi All

 Not sure if Hijacking ids the right term in this case. Basically I
 want to modify the saveTiddler macro so that when a student saves a
 tiddler. the saveTiddler also does something else...in this case
 executes another macro that sends a message to my server..and
 maybe emails me a message. ths would be for specific
 tiddlers...not ALL!

 So how to hijack the saveTiddler macro to my ends...where is it
 in the core?

 Thanks
 Skye

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[tw] Re: Hijacking saveTiddler

2011-12-14 Thread skye riquelme 
Ooopa..now thats exactly what I wanted to know. now to work to
see if I can get it woring as I want.

Thanks
Skye



On 14 dez, 08:18, rakugo jdlrob...@gmail.com wrote:
 Hijack does seem to be the right word. The idea with hijacking is

 // cache the old value of the function
 var _cache = TiddlyWiki.prototype.saveTiddler;
 // override the existing value
 TiddlyWiki.prototype.saveTiddler =
 function(title,newTitle,newBody,modifier,modified,tags,fields,clearChangeCo­unt,created,creator)
 {
         // do something new
         alert(!);
         // apply the old value
         return _cache.apply(this, arguments);

 };

 Hope this helps...
 Jon

 On Dec 14, 4:00 am, skye riquelme riquelme.s...@gmail.com wrote:







  Hi All

  Not sure if Hijacking ids the right term in this case. Basically I
  want to modify the saveTiddler macro so that when a student saves a
  tiddler. the saveTiddler also does something else...in this case
  executes another macro that sends a message to my server..and
  maybe emails me a message. ths would be for specific
  tiddlers...not ALL!

  So how to hijack the saveTiddler macro to my ends...where is it
  in the core?

  Thanks
  Skye

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