Re: FileUpload always null

[Steve Swinsburg]

Sure thing. Essentially, a POJO called UserProfile is a param of the constructor for the form. One thing that is probably the issue is that I wasn't sure how to assign an upload field to a corresponding attribute in the POJO, is this even necessary?

Its so simple so at this stage its all in the constructor for the class:

public class ChangeProfilePicture extends Panel{

    private FileUploadField uploadField;


        public ChangeProfilePicture(String id, UserProfile userProfile) {
        super(id);

        //create model


        //setup form    
        Form form = new Form("form", userProfileModel) {
                public void onSubmit(){
                                
                        //get the backing model
                        UserProfile userProfile = (UserProfile) 
this.getModelObject();
                                
                        //get uploaded file, get the bytes and set into 
sakaiPerson.
                        if (uploadField != null) {
                                System.out.println("1 - uploadField not null");
                                FileUpload upload = uploadField.getFileUpload();
                                if(upload != null) {
                                        System.out.println("2 - upload not 
null");
                                        byte[] photoBytes = upload.getBytes();
                                }
                        }
                }
        };
                                
        form.setOutputMarkupId(true);
        form.setMultiPart(true);

        //text

        form.add(textSelectImage);
                
        //upload

        form.add(uploadField);
                
        //submit button

        form.add(submitButton);
                
        
        //add form to page
        add(form);
    }

}


Thanks for any assistance.


cheers,
Steve







On 6 Nov 2008, at 11:34, James Carman wrote:

CompoundPropertyModel userProfileModel = new CompoundPropertyModel(userProfile); Label textSelectImage = new Label("textSelectImage", new ResourceModel("text.upload.image.file")); uploadField = new FileUploadField("picture", new PropertyModel(userProfile, "picture")); Button submitButton = new Button("submit", new ResourceModel("button.upload"));

Can you share your code that builds up the component hierarchy?  At
least the relevant parts?  We'll need to see what kind of model the
form has and stuff like that.

On Thu, Nov 6, 2008 at 5:58 AM, Steve Swinsburg
<[EMAIL PROTECTED]> wrote:

Nope, the form works fine, it just never reaches the line:

System.out.println("2 - upload not null");

Or do you mean HTML validation errors? Thats fine as well:
<wicket:panel>
<form wicket:id="form" class="profileForm">

<p wicket:id="textSelectImage" class="small">Select an image</p>

<p><input type="file" wicket:id="picture"/></p>

<p><input type="submit" wicket:id="submit" value="Upload" /></p>

</form>
</wicket:panel>

ie no Javascript to show it, same thing.

Any ideas?

Thanks


On 5 Nov 2008, at 18:33, Igor Vaynberg wrote:

are there validation errors?

-igor

On Wed, Nov 5, 2008 at 10:14 AM, Steve Swinsburg
<[EMAIL PROTECTED]> wrote:

Hi all,

I'm having an odd problem in uploading a file where the result of:

FileUpload upload = uploadField.getFileUpload();

is always null. I can't see what I've done wrong.

Here's part of my onSubmit method which works for textfields, but not



public void onSubmit(){

if (uploadField != null) {

System.out.println("1 - uploadField not null");

FileUpload upload = uploadField.getFileUpload();

if(upload != null) {

System.out.println("2 - upload not null");

byte[] photoBytes = upload.getBytes();

}

}

}

where uploadField is defined in the class like so:

private FileUploadField uploadField;

and then added to the form:

uploadField = new FileUploadField("picture");

form.add(uploadField);



spot any issues/give me pointers? The form is multipart encoded.


thanks.






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This panel is shown by a jQuery slideToggle() after someone clicks on a button, but its a normal form submit. Even when the form is always visible, fileuploads. It's a normal fileupload by the way (so its not an AJAX issue): So the form works as expected for textfields but not fileuploads. Can anyone

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