EDIT: One problem: I need to do r = Resource.where (id: 3) .first # & lt == == I did not have .first before
I am trying to get snapshots of urls using imgkit + paperclip + s3. I can get snapshots and successfully upload them to a clip. For example, the IRB session at the bottom of this message successfully uploads a snapshot of the specified URL to my S3 bucket.
However, I try to display the images and I always get the missing.png image. I experimented at the IRB session below and found something interesting. I do not think that I am saving the .snapshot resource correctly, because I cannot get this url again if I find the resource under a different variable name (look at the IRB session below).
All I want to know is how I can get the URL of the image I uploaded to S3.
I ran "rails generate snaphot paperclip resource" and then "rake db: migrate" successfully.
Gemfile:
# IMGKit for site thumbnails gem "imgkit", "~> 1.3.7" # Amazon S3 storage gem 'aws-sdk', '~> 1.3.4' # Paperclip for file uploads gem "paperclip", :git => "git://github.com/thoughtbot/paperclip.git"
In my model resource.rb:
attr_accessible :snapshot has_attached_file :snapshot, :storage => :s3, :s3_credentials => "#{Rails.root}/config/s3.yml"
Here is my IRB session:
128-110-88-73:KnowledgeThief dainewinters$ rails c Loading development environment (Rails 3.2.11) irb(main):001:0> r = Resource.first Resource Load (0.9ms) SELECT "resources".* FROM "resources" LIMIT 1 => nil irb(main):002:0> r = Resource.first Resource Load (1.1ms) SELECT "resources".* FROM "resources" LIMIT 1 => #<Resource id: 1, link: "http://cm.dce.harvard.edu/2012/01/13836/publication...", title: "Harvard CS61 - Computer Systems", description: "Harvard version of CS4400. Topics include assembl...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:36:01", youtubeID: nil, media_type: "video", snapshot_file_name: nil, snapshot_content_type: nil, snapshot_file_size: nil, snapshot_updated_at: nil> irb(main):003:0> url = r.link => "http://cm.dce.harvard.edu/2012/01/13836/publicationListing.shtml" irb(main):004:0> url = PostRank::URI.clean(r.link) => "http://cm.dce.harvard.edu/2012/01/13836/publicationListing.shtml" irb(main):005:0> side_size = 300 => 300 irb(main):006:0> crop_side_size = 300 => 300 irb(main):007:0> kit = IMGKit.new(url, :quality => 50, irb(main):008:1* :width => side_size, irb(main):009:1* :height => side_size, irb(main):010:1* "crop-w" => crop_side_size, irb(main):011:1* "crop-h" => crop_side_size, irb(main):012:1* "zoom" => 0.35, irb(main):013:1* "disable-smart-width" => true, irb(main):014:1* "load-error-handling" => "ignore") => #<IMGKit:0x007fa11599adc8 @options={:quality=>50, :width=>300, :height=>300, "crop-w"=>300, "crop-h"=>300, "zoom"=>0.35, "disable-smart-width"=>true, "load-error-handling"=>"ignore"}, @stylesheets=[], @source=http://cm.dce.harvard.edu/2012/01/13836/publicationListing.shtml> irb(main):015:0> img = kit.to_img(:jpg) => "\xFF\xD8\xFF\xE0\x00\x10JFIF\x00\x01\x01\x01..." irb(main):016:0> r.id => 1 irb(main):017:0> r.object_id => 70164904582860 irb(main):018:0> file = Tempfile.new(["resource_snapshot_#{r.id} irb(main):019:2" ", 'jpg'], 'tmp', :encoding => 'ascii-8bit') => #<File:/Users/dainewinters/rails/KnowledgeThief/tmp/resource_snapshot_1 20130203-28526-1fpqdwljpg> irb(main):020:0> file.write(img) => 9756 irb(main):021:0> file.flush => #<File:/Users/dainewinters/rails/KnowledgeThief/tmp/resource_snapshot_1 20130203-28526-1fpqdwljpg> irb(main):022:0> r.snapshot => /snapshots/original/missing.png irb(main):023:0> r.snapshot = file => #<File:/Users/dainewinters/rails/KnowledgeThief/tmp/resource_snapshot_1 20130203-28526-1fpqdwljpg> irb(main):024:0> r.snapshot => http://s3.amazonaws.com/knowledgethief-dev/resources/snapshots/000/000/001/original/resource_snapshot_1%0A20130203-28526-1fpqdwljpg?1359924148 irb(main):025:0> r.save! (0.2ms) BEGIN (0.9ms) UPDATE "resources" SET "snapshot_file_name" = 'resource_snapshot_1 20130203-28526-1fpqdwljpg', "snapshot_content_type" = 'image/jpeg', "snapshot_file_size" = 9756, "snapshot_updated_at" = '2013-02-03 20:42:28.408205', "updated_at" = '2013-02-03 20:42:35.031108' WHERE "resources"."id" = 1 (0.8ms) COMMIT => true irb(main):026:0> r => #<Resource id: 1, link: "http://cm.dce.harvard.edu/2012/01/13836/publication...", title: "Harvard CS61 - Computer Systems", description: "Harvard version of CS4400. Topics include assembl...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:42:35", youtubeID: nil, media_type: "video", snapshot_file_name: "resource_snapshot_1\n20130203-28526-1fpqdwljpg", snapshot_content_type: "image/jpeg", snapshot_file_size: 9756, snapshot_updated_at: "2013-02-03 20:42:28"> irb(main):027:0> r.snapshot => http://s3.amazonaws.com/knowledgethief-dev/resources/snapshots/000/000/001/original/resource_snapshot_1%0A20130203-28526-1fpqdwljpg?1359924148 irb(main):028:0> file.unlink => nil irb(main):029:0> r.snapshot => http://s3.amazonaws.com/knowledgethief-dev/resources/snapshots/000/000/001/original/resource_snapshot_1%0A20130203-28526-1fpqdwljpg?1359924148 irb(main):030:0> r.snapshot.url => "http://s3.amazonaws.com/knowledgethief-dev/resources/snapshots/000/000/001/original/resource_snapshot_1%0A20130203-28526-1fpqdwljpg?1359924148" irb(main):031:0> r2 = Resource.first Resource Load (2.3ms) SELECT "resources".* FROM "resources" LIMIT 1 => #<Resource id: 2, link: "http://www.codeschool.com/courses/try-git", title: "Try Git", description: "A great introduction to Git, a popular version cont...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:36:01", youtubeID: nil, media_type: "interactive course", snapshot_file_name: nil, snapshot_content_type: nil, snapshot_file_size: nil, snapshot_updated_at: nil> irb(main):032:0> r2 => #<Resource id: 2, link: "http://www.codeschool.com/courses/try-git", title: "Try Git", description: "A great introduction to Git, a popular version cont...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:36:01", youtubeID: nil, media_type: "interactive course", snapshot_file_name: nil, snapshot_content_type: nil, snapshot_file_size: nil, snapshot_updated_at: nil> irb(main):033:0> r2.snapshot => /snapshots/original/missing.png irb(main):034:0> r => #<Resource id: 1, link: "http://cm.dce.harvard.edu/2012/01/13836/publication...", title: "Harvard CS61 - Computer Systems", description: "Harvard version of CS4400. Topics include assembl...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:42:35", youtubeID: nil, media_type: "video", snapshot_file_name: "resource_snapshot_1\n20130203-28526-1fpqdwljpg", snapshot_content_type: "image/jpeg", snapshot_file_size: 9756, snapshot_updated_at: "2013-02-03 20:42:28"> irb(main):035:0> r2 = Resource.where(id: 1) Resource Load (0.6ms) SELECT "resources".* FROM "resources" WHERE "resources"."id" = 1 => [#<Resource id: 1, link: "http://cm.dce.harvard.edu/2012/01/13836/publication...", title: "Harvard CS61 - Computer Systems", description: "Harvard version of CS4400. Topics include assembl...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:42:35", youtubeID: nil, media_type: "video", snapshot_file_name: "resource_snapshot_1\n20130203-28526-1fpqdwljpg", snapshot_content_type: "image/jpeg", snapshot_file_size: 9756, snapshot_updated_at: "2013-02-03 20:42:28">] irb(main):036:0> r2 => [#<Resource id: 1, link: "http://cm.dce.harvard.edu/2012/01/13836/publication...", title: "Harvard CS61 - Computer Systems", description: "Harvard version of CS4400. Topics include assembl...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:42:35", youtubeID: nil, media_type: "video", snapshot_file_name: "resource_snapshot_1\n20130203-28526-1fpqdwljpg", snapshot_content_type: "image/jpeg", snapshot_file_size: 9756, snapshot_updated_at: "2013-02-03 20:42:28">] irb(main):037:0> r2.snapshot NoMethodError: undefined method `snapshot' for #<ActiveRecord::Relation:0x007fa115d42b88> from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/relation/delegation.rb:45:in `method_missing' from (irb):37 from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/console.rb:47:in `start' from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/console.rb:8:in `start' from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands.rb:41:in `<top (required)>' from script/rails:12:in `require' from script/rails:12:in `<main>' irb(main):038:0> r2.snapshot_file_name NoMethodError: undefined method `snapshot_file_name' for #<ActiveRecord::Relation:0x007fa115d42b88> from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_record/relation/delegation.rb:45:in `method_missing' from (irb):38 from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/console.rb:47:in `start' from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/console.rb:8:in `start' from /Users/dainewinters/.rbenv/versions/1.9.3-p327-perf/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands.rb:41:in `<top (required)>' from script/rails:12:in `require' from script/rails:12:in `<main>' irb(main):039:0> r2 => [#<Resource id: 1, link: "http://cm.dce.harvard.edu/2012/01/13836/publication...", title: "Harvard CS61 - Computer Systems", description: "Harvard version of CS4400. Topics include assembl...", user_id: nil, created_at: "2013-02-03 20:36:01", updated_at: "2013-02-03 20:42:35", youtubeID: nil, media_type: "video", snapshot_file_name: "resource_snapshot_1\n20130203-28526-1fpqdwljpg", snapshot_content_type: "image/jpeg", snapshot_file_size: 9756, snapshot_updated_at: "2013-02-03 20:42:28">] irb(main):040:0>