Get the name of the file after download - cffile

According to Livedocs when you use < cffile > the name of the downloaded file may be referenced. I put #cffile.serverFile # < cfoutput > < / cfoutput > on the results after the download page, but and get the error: 'serverfile is undefined in cffile.

Of course, it is not as simple as I thought. Did I miss something in my reading?



SOLUTION: The following code downloads an image and place in the database - event tNom, image name, image height, height of the image and the text for a legend to go with the image.



Download Photos of the event


/**
* Returns the width and height of the images based on the type of image.
*
@param filename from absolute path or relative to the file. (Required)
@param mimetype Minetype for the file. (Optional)
* @return returns a structure containing the height and width of information or an error string.
* @author Peter Crowley (pcrowley@webzon & #101;. That is to say)
* @version 1, August 17, 2006
*/
function ImageSize (filename) {}
JPEG variables
var nFileLength = 0; var nBlockLength = 0; var nMarker = 0;
nSOI var = 65496. Start of Image (FFD8)
nEOI var = 65497. End of Image (FFD9)
nSOF 65472 = var; Start of frame nMarker (FFC0)
var nSOF1 = 65473. Start of frame extended sequential mode (FFC1)
var nSOF2 = 65474; Beginning of the progressive mode (FFC2) framework
var nSOF3 = 65475; Beginning of mode without loss of images (FFC3)
Ons var = 65498; Start of scan (FFDA)
var sImageType = "";
var kCoords = structNew();
var fInput = 0;
sByte var = 0;
var sFullPath ="";
var sMimeType = "";

If (Left(filename,1) IS "/" EAST of GOLD MID(filename,2,1) or Left(filename,1) IS "------" ":")
sFullPath = filename;
on the other
sFullPath = ExpandPath (filename);

Establish the type of image
If (arrayLen (arguments) gt 1) {//optional mimetype
sMimeType = arguments [2];
If (LCase (ListFirst(sMimeType,"/")) IS NOT 'image') returns 'incorrect mime type ";
If (ListLen(sMimeType,"/") NEQ 2) returns "invalid mime type";
sImageType = LCase (ListLast(sMimeType,"/"));
} else {/ / the work off the coast of the file extension}
If (ListLen(filename,".") LT 2) returns "unknown image type";
sImageType = LCase (ListLast(filename,"."));
}

If (fileExists (sFullPath)) return "File does not exist.";

make a fileInputStream object to read the file in
fInput = createObject("java","java.io.RandomAccessFile").init (sFullPath, "r");

Get X, are sizes of resolution for each image type supported
Switch (sImageType) {}
case 'jpg': case 'jpeg ':
{}
nMarker = fInput.readUnsignedShort ();

If (nMarker NEQ nSOI AND nMarker NEQ nEOI AND nMarker NEQ NSOs) {}

nBlockLength = fInput.readUnsignedShort ();

If (nMarker EQ nSOF OR nMarker EQ nSOF1 OR nMarker EQ nSOF2 OR nMarker EQ nSOF3) {/ / start of frame}
fInput.readUnsignedByte (); bit sample precision jump
kCoords.ImageHeight = fInput.readUnsignedShort ();
kCoords.ImageWidth = fInput.readUnsignedShort ();
fInput.close ();
Return kCoords;
} else {}
fInput.skipBytes (JavaCast ("int", nBlockLength-2));
}
}
} While (BitSHRN(nMarker,8) EQ 255 AND nMarker NEQ nEOI);
break;
case "gif":
fInput.skipBytes (6).

sByte = fInput.readUnsignedByte ();
kCoords.ImageHeight = fInput.readUnsignedByte () * 256 + sByte;

sByte = fInput.readUnsignedByte ();
kCoords.ImageWidth = fInput.readUnsignedByte () * 256 + sByte;

fInput.close ();
Return kCoords;
by default:
break;
}
close this entry
fInput.close ();
return "unhandled image type";
}




Maintenance of the database








Click here to download a new picture of the event:



kImageSize = ImageSize("#newfile#");


insert into eventpics
(eventname, picpath, imageheight, imagewidth, pictext)
values

("#eventname #", "#newfile #", "#kImageSize.ImageHeight #", "#kImageSize.ImageWidth #", "#pictext #")







Name of the event:




Text from the image:











Tags: ColdFusion

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