Am using uploadifive (the HTML5 version not the the Flash based uploadify) as follows:
$('#file_upload').uploadifive({ //setup uploadify
'auto' : false,
'removeCompleted' : true,
'checkScript' : 'check-exists.php',
'formData' : {
'timestamp' : '<?php echo $timestamp;?>',
'token' : '<?php echo md5('unique_salt' . $timestamp);?>'
},
'queueID' : 'queue',
'uploader' : 'uploadifive.php',
'onUploadFile' : function(file) {
//alert('The file ' + file.name + ' is being uploaded.');
},
'onCheck' : function(file, exists) {
//alert ('onCheck: ' + file.name + '/' + exists);
},
'onUploadComplete' : function(file, data) {
//alert (file.name + ': ' + data);
}
});
With this simple form:
<form>
<div id="queue"></div>
<input id="file_upload" name="file_upload" type="file">
<a style="position: relative; top: 8px;" href="javascript:$('#file_upload').uploadifive('upload')">Upload Files</a>
</form>
If I load one or two files into an empty folder, all works fine.
If I load 3 or more I get a variable number of repeated calls to check_info.php. For instance if I upload five files into an empty folder, according to firebug there are 15 calls to check_info.
1 for file 1, returns 0 (ie file does not exist)
2 for file 2, both return 0
3 for file 3, all return 0
4 for file 4, 1 returns 0 and 3 return 1 (ie file exists)
5 for file 5, 2 return 0, 3 return 1
The multiple returns of 0 I can live with (though it's very inefficient) as they are invisible to the user, but the 6 returns of 1, each generate a warning msg to which the user has to respond.
I have no idea why this happening. Have looked at uploadifive code but it's way beyond my limited knowledge of jQuery.
Appreciate any advice/suggestions/cures/etc
Tx in advance