Re: File uploads

> The scaffolding (command line) does generate a form that uses the
> multipart/form-data
> enctype and uses an input element with type file for the picture
> property.
> In the controllers save method I can successfully call
> request.getFile('picture') and the
> result is a MultipartFile.
> As far as I can see everything is fine, except that the following code:
> picture.save() throws a hibernate exception, because setting the
> picture property of
> the picture class does not happen with picture.properties = params,
> because
> params is an empty map :(
>
> I don't think that it is a big problem that the scaffolding code does
> not handle this
> properly, but I don't get what the real problem is. What is missing ?
> The form
> is an upload form, the resulting request implements getFile(). I can
> easily fix the
> whole thing with a line like picture.setPicture(file.getBytes()). So
> why is the
> params Map empty. I'd like to help here if someone can give me a
> little insight ;)
>
> Thx in advance
> Oliver
>>
>> Cheers
>>
>> On 2/21/07, Oliver Epper <oliver@...> wrote:
>>> Hi all !
>>>
>>> I experience a little trouble with file uploads in grails.
>>> Imagine a newly created app with the following domain-class:
>>>
>>> class Picture {
>>>   byte[] picture
>>> }
>>> Now, let's generate the controller and appropriate views
>>> using grails generate-all Picture. I cannot upload any files, because
>>> the controllers save method throws an exception while trying to
>>> save the instance of the Picture class.
>>> Long story short:
>>> This happens because the params Map does not contain any
>>> key-value pairs :(
>>> The funny thing is: If I change the enctype-attribute in create.gsp
>>> from "multipart/form-data" to "multipart/form" everything works
>>> fine...
>>> Hope anyone can explain that to me !!! (please)
>>> I use Java 6, and groovy 1.0 and grails 0.4.1
>>>
>>> --
>>> Epper & Kranz GbR
>>> Oliver Epper, Patrick Kranz
>>> EK IT-Solutions
>>> Südring 37
>>> 54634 Bitburg
>>> Tel: +49 (0)6561 951614
>>> Fax: +49 (0)6561 12425
>>>
>>>
>>>