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February 3rd, 2004, 03:43 AM

blatant

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class problems

I'm having a problem with classes. I have two class definitions, photo and photoCategory as follows:

Code:

class photo 
{
	var fileName:String;		this.caption = caption;		
	}
}

class photoCategory 
{
	var name:String;
	var photos_arr:Array = new Array();
	var path:String;
	
	function photoCategory(name:String,path:String)
	{
		this.name = name;
		this.path = path;
	}
	
	function addPhoto(thePhoto:photo)
	{		
		photos_arr[photos_arr.length] = thePhoto;
		trace("adding photo: "+thePhoto.fileName+" to category: "+name+", total length is now: "+photos_arr.length);
	}
}

when I add many photos to multiple categories, this is the output:

Code:

...
adding photo: 27.jpg to category: category1, total length is now: 27
adding photo: 28.jpg to category: category1, total length is now: 28
adding photo: 29.jpg to category: category1, total length is now: 29
adding photo: 30.jpg to category: category1, total length is now: 30
adding photo: 01.jpg to category: category2, total length is now: 31
adding photo: 02.jpg to category: category2, total length is now: 32
adding photo: 03.jpg to category: category2, total length is now: 33
adding photo: 04.jpg to category: category2, total length is now: 34
adding photo: 05.jpg to category: category2, total length is now: 35
adding photo: 06.jpg to category: category2, total length is now: 36
adding photo: 07.jpg to category: category2, total length is now: 37
	var caption:String;
	
	function photo(fileName:String,caption:String)
	{
		this.fileName = fileName;

...

As you can see, when the category changes, the array length keeps going up. It is almost as if the two arrays for the two different categories are not independent. I don't know what could be causing this, can sombody help me out?

February 3rd, 2004, 07:50 AM

Tann San

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Hi, what happens if you re-init the array:

Code:

class photoCategory 
   {
      var name:String;
      var photos_arr:Array = new Array();
      var path:String;
	
      function photoCategory(name:String,path:String)
         {
             this.name = name;
             this.path = path;
             this.photos_arr = new Array();
         }

      function addPhoto(thePhoto : photo)
         {		
             this.photos_arr[this.photos_arr.length] = thePhoto;
             trace("adding photo: "+thePhoto.fileName+" to category: "+name+", total length is now: "+this.photos_arr.length);
         }
   }

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February 6th, 2004, 04:21 PM

blatant

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Thanks Tann, I changed it to the following and it worked fine:

Code:

class photoCategory 
   {
      var name:String;
      var photos_arr:Array;
      var path:String;
	
      function photoCategory(name:String,path:String)
         {
             this.name = name;
             this.path = path;
             this.photos_arr = new Array();
         }

      function addPhoto(thePhoto : photo)
         {		
             this.photos_arr[this.photos_arr.length] = thePhoto;
             trace("adding photo: "+thePhoto.fileName+" to category: "+name+", total length is now: "+this.photos_arr.length);
         }
   }

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