Problem with attachement_fu on sinatra

Hello experts,

I am trying to use attachement_fu plugin on sinatra…

When I’m posting request on sinatra… including file params

then in log it showing posted params[:file] format in hash type… like

{“uploaded_data”=>
{:filename=>“user.JPG”,
:type=>“image/jpeg”,
:name=>“custom_thumbnail[uploaded_data]”,
:tempfile=>
#<File:C:/DOCUME~1/Nishant/LOCALS~1/Temp/RackMultipart4072-15639>,
:head=>
“Content-Disposition: form-data;
name=“custom_thumbnail[uploaded_data]”;
filename=“user.JPG”\r\nContent-Type: image/jpeg\r\n”}}

instead of as attachement_fu needs it request file params as like

{“uploaded_data”=>
#<ActionDispatch::Http::UploadedFile:0x1434
@content_type=“image/jpeg”,
@headers=
“Content-Disposition: form-data;
name=“custom_thumbnail[uploaded_data]”;
filename=“user.JPG”\r\nContent-Type: image/jpeg\r\n”,
@original_filename=“user.JPG”,
@tempfile=
#<File:C:/DOCUME~1/Nishant/LOCALS~1/Temp/RackMultipart4072-15640>>}

Due to above(first one) has type format attachement_fu is not
supporting…

it showing errors like

undefined method ‘content_type’ and all other…

Any ideas…? on how to get this to change/access params format as normal
format(like action_controller params)?

Thank you in advance

-Ganesh K