Rails - May 2006 - Saving extracted data

Hi there,

I have a file upload form on my page that is for images. In the model I have
this:

  def file_data=(file_data)
    @file_data = file_data
    write_attribute ''extension'',
file_data.original_filename.split(''.'').last.downcase
    write_attribute("content_type", file_data.content_type)
    write_attribute("current_name", file_data.original_filename)
    write_attribute("file_size", file_data.size)
    read_attributes(file_data)
  end

I also want to read the attributes of the EXIF data embedded in the picture
doing something like this (this the short form):

def read_attributes(file_data)
    img = Magick::Image.from_blob(file_data.read)
    camera_makeimg.get_exif_by_entry(''Make'')
    write_attribute("camera_make", camera_make)
  end


However, when I do this I get an error of:

undefined method `get_exif_by_entry'' for [ JPEG 3504x2336 3504x2336+0+0
DirectClass 8-bit 3544kb]:Array

get_exif_by_entry is a method for ImageMagick
http://www.imagemagick.org/RMagick/doc/image2.html#get_exif_by_entry


I''m a little lost at the moment.

Any ideas?

Thank you,
Dave Hoefler
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