Hello!
Thanks for your reply. The function in the controller looks like this:
def get_front_image
device = Device.find(:first, :conditions => ["ID1 = ?", params[:id]])
@front = device.THUMBFRONT
send_data (@front,:type => 'image/gif',
:filename => 'front_view.gif',
:disposition => 'inline')
end
You might be right, it could be a byte array... but how can I display
it??
best regards
lacky
Robert Walker wrote:
>> NoMethodError (undefined method `unpack' for #<Array:0x48cbff0>):
>> c:/ruby/lib/ruby/1.8/base64.rb:59:in `decode64'
>
> From this is looks to me like some code is attempting to decode the
> image data from Base64. Are you sure your image data is encoded using
> Base64? I tend to doubt it. MS-SQL is likely just storing the raw binary
> data. So it makes sense the you would have an array of bytes.
>
> It would be helpful if you could post the code that you're using to
> display the image. Normally in RoR there is a method that returns the
> raw image data from a request with the proper content-type header. For
> example the content-type header for a JPEG would be image/jpeg.
>
> Somehow your application needs to tell the browser what the binary data
> represents. It could be pretty much anything (JPEG, GIF, PDF, etc). This
> is typically accomplished using the send_data method.
>
> Here's an example:
> def sales_graph
> png_data = Sales.plot_for(Date.today.month)
> send_data(png_data, :type => "image/png", :disposition => "inline")
> end
>
> Günther Lackner wrote:
>> Hello!
>>
>> I need to display images stored in a MS-SQL database but I get the
>> following error:
>>
>> NoMethodError (undefined method `unpack' for #<Array:0x48cbff0>):
>> c:/ruby/lib/ruby/1.8/base64.rb:59:in `decode64'
>>
>> I guess its because MS-SQL delivers an arry...
>>
>> Is there a solution to this problem??
>>
>> Please help me!
>> lacky
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