[TIMOB-1007] Android: Proxy object's methods don't have apply/call methods

GitHub Issue	n/a
Type	Bug
Priority	Low
Status	Closed
Resolution	Invalid
Resolution Date	2017-06-12T18:32:42.000+0000
Affected Version/s	Release 3.0.0
Fix Version/s	n/a
Components	Android
Labels	core
Reporter	Konstantin
Assignee	Ingo Muschenetz
Created	2011-04-15T02:41:23.000+0000
Updated	2017-06-12T18:32:42.000+0000

Description

All object's methods, like ViewProxy methods, DatabaseProxy methods don't have call/apply methods, I mean apply/call methods of JS Function object, it makes impossible to create wrapper around, for example, Titanium.Database.execute method, which accepts variable number of arguments. IMHO it's a very big limitation not described in documentation and creates a lot of troubles to developers.

Comments

Ernesto 2011-04-15

I agree, this is a huge limitation as it isn't noted in the docs and the error thrown is cryptic; custom components are also significantly more difficult to develop, e.g.:

   var MyCustomPicker = function(options) {
     this.picker = Ti.UI.createPicker(options.picker);
     this.cancelButton = Ti.UI.createButton(options.cancelButton);
     
     /*
      here's the problem, this makes the app to closes with the following message:
      [DEBUG] Session did end with error (null) 
      */
     this.cancelButton.addEventListener(
       'click', 
       options.onCancel.apply(this, ['any', 'other', 'possible', 'argument']
     );
     
   };
   
   var myPicker = new MyCustomPicker({
     onCancel: function() {
       Ti.API.info(arguments);
     }
   });

Damien Elmes 2011-04-15

A workaround for this was posted in the forums:

   if (typeof db.execute.apply !== 'function') {
       db.execute.apply = Function.prototype.apply;
   }

Lee Morris 2017-06-12

Closing ticket due to the time passed and lack of progress since the opening of the ticket. Any problems, please file a new ticket.

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