Image upload

[Deepak Singh]

Hi,

I need to upload an image to GAE server and store it in datastore.

I looked for many options and found that FileUpload widget released with GWT 2.4 can do it but the restriction is that this widget must be used with FormPanel.

but i dont want to use formPanel.

Can anyone suggest me the best possible way w.r.t GWT + GAE

I am using GWT 2.4, GAE 1.5.5

Thanks
Deepak Singh

[Adrian Scott]

We have sample code for uploading an image in our open-source adrianremembersme-django project (though this is not using GWT).

To use the latest version of it, just create a project on CoderBuddy using the Starting Content options of "Guestbook App - Adrian Remembers Me - Django" or ""Adrian Remembers Me - Django". The upload image code is used to store a person's profile photo. You can customize from there.  (After you create your first project, you'll have these Starting Content options in the second project.)

Hope this helps -- enjoy,
-A

--
Adrian Scott, Ph.D.
CEO, Founder
CoderBuddy
http://www.coderbuddy.com/ <-- Create a Facebook or Google App Engine app in a minute without installing anything

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[Ernesto Oltra]

GWT is compiled to JavaScript: it can't do what JavaScript can't either. The trick of FileUpload is sending the form (and the file) in a hidden iframe; that way you haven't to reload the whole page. There is a good reason not to use FormPanel?

Ikai has a blog post with some sample code using GWT to upload images to appengine:

  http://ikaisays.com/2010/09/08/gwt-blobstore-the-new-high-performance-image-serving-api-and-cute-dogs-on-office-chairs/

and the demo:

  http://ikai-photoshare.appspot.com/