Append a unique ID as query string of the image URL, i.e. the time the
file was last modified as integer.
/upload/images/12345.jpg?1220824911
On Sep 7, 11:34 pm, Paul van Hoven <[EMAIL PROTECTED]>
wrote:
> I have a simple Widget where the user can set its user picture. It has
> a fileupload and shows the user image. So when the user wants to
> change his user picture, he simply clicks on the fileupload chooses
> picture and this is then send to the server. On the server side the
> picture is safed as "userId".jpg where userId is a unique integer
> associated with each user. So everytime the user updates his foto, his
> file named "userId".jpg is simply overwritten, keeps its name and
> after the fileupload succeeded on the client side in the "public void
> onSubmitComplete(FormSubmitCompleteEvent event)" method I make an RPC
> call to the server to retrieve the new image data, such that the user
> can see his newly changed picture. But there is a problem.
>
> The image in the widget is constructed by
>
> setupWidget() {
> ....
> Image userPicture = new Image( GWT.getHostPageBaseURL() +
> umi.userPic.thumbPath );
> userPicture.setPixelSize( umi.userPic.width, umi.userPic.height );
> ...
>
> }
>
> So after having gotten the new image data from the server the method
> setupWidget() is called andthe new picture gets the same path as the
> old one was, since the "userId".jpg hasn't changed name but content.
> The problem: The new image is not reloaded, i.e. the same image as the
> old one is shown. But the size of the picture changes. So now I have
> the old picture but poorly scaled. I've already tried not to create a
> new image but to call "setURL()" on the "old" userpicture. But it
> doesn't work either.
>
> Why is the image not reloaded properly?
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