gps carrierwave interrogation

carrierwave_gps_scan.rb

Magick::Image.read(Image.with_file.find_by_import_file("DSC00014.JPG").file_url(:small_thumb))[0].get_exif_by_entry('GPSLongitude')[0][1]

Magick::Image.read(Image.with_file.find_by_import_file("DSC00014.JPG").file_url(:small_thumb))[0].get_exif_by_entry('Model')

pp Magick::Image.read(Image.with_file.find_by_import_file("DSC00014.JPG").file_url(:small_thumb))[0].get_exif_by_entry

@total_file_images = Image.with_file
@total_file_images_count = @total_file_images.count
@loop_counter = 0
puts @total_file_images.collect do |i|
  o = false
  if Magick::Image.read(i.file_url(:small_thumb))[0].get_exif_by_entry('GPSLongitude')[0][1] != nil
    @loop_counter += 1
    o = true
  end
  puts "#{@loop_counter}/#{@total_file_images_count}"
  o
end.count

Optimisation options:

• scan local files instead of remote thumb (needs full original path stored)
• store exif in db and scan them after!