similar to: The Rails way to download a file...

Dears, Got a controller witch do a send_data for displaying a chart. like : send_data(g.to_blob, :filename => "any.png", :type => ''image/png'', :disposition=> ''inline'') I actually do a <img src="http://myhost:3000/stats/make_graph" /> Is there any way more clean to do that ? At minima don''t hardcode the beginning

Hi, I have a some image files that belongs to some users. Only the owner of an image should be able to see it. How can I do that? I don''t think I can use send_data, because I want the image to be displayed on a "rendered" page. I don''t think I can place the images in the public folder, because if some user can figure out the name of the image then he''ll be

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I would like to extract an image BLOB from my database and display it alongside some other information on my ''edit'' page. I read the information here http://wiki.rubyonrails.com/rails/show/HowtoUploadFiles and that was really helpful. However, it still isn''t clear to me how I would get access to the image in my views if

I''m trying to display a generated .png plot via send_data(), but it results in a server error "invalid byte sequence in US-ASCII" error. I''m pretty sure this means that I need to specify the encoding somewhere, but I haven''t been able to figure out where or how to do so. Some particulars: I''m running gnuplot through a pipe to generate a plot in .png

Okay, so this is driving me crazy. I''m trying to do a file upload using code from a book. What happens: I get wrong number of arguments (1 for 0) in the upload controller save action. No idea why. Schema: The schema for the picture model object is just a textfield named comments and a binary field called data. Upload controller: def get @picture =Picture.new end def save

I am using image_tag to load an image that I''ve saved to the database (using attachment_fu if you''re curious but that''s probably not relevant here): VIEW <%= image_tag ''/photo/get_image/5'' %> CONTROLLER def get_image @photo=Photo.find(params[:id]) send_data(DbFile.find(@photo.db_file_id).data, :type =>

Hi, for those with experience of Gruff module: suppose I want to send image from server straight to the browser (as example on gruff web site): send_data(g.to_blob, :disposition => ''inline'', :type => ''image/png'', :filename => "gruff.png") the server seems sending this binary data ok, but I am having

I don''t know why this isn''t working. If I download a word doc that I uploaded, all I get is the S3 file path in the document. If I access the s3 file path directly in my browser, it downloads the file correctly. Here is my controller method: def download @curriculum = @school.curriculums.find(params[:id]) send_data @curriculum.attachment.public_filename, :filename

hey, i want to generate an excel file and send it directly to the browser (without storing it to the harddisk). does anyone has any solution? thanks in advance this is my code: -------------------- def export_excel if @request.env[''HTTP_USER_AGENT''] =~ /msie/i @headers[''Pragma''] = '''' @headers[''Cache-Control''] =

Restricting size of an uploaded file, is how is that possible? If I do not want a user to upload a file larger than X bytes, can it easily be done? If I also would like restrict the types of files that can be uploaded, how may I do so? Thank you, Sharkie

Hi, I am using send_data to allow users to download files from the database but ran into a small problem, it seems that files upload fine but when they download only 64kb of the file is sent. I''m using the basic rails code from the Agile book: #upload code in my sheet model def file=(document_field) self.filename = base_part_of(document_field.original_filename)

I have an app that uploads files into the directory RAILS_ROOT/documents/ I tried to access the file for downloading using <a href="#{RAILS_ROOT}/documents/file_name">my file</a>. Rails prepends the controller name to the link so I get <a href=" http://localhost:3000/tasks/show_document/config/.../documents/file_name" What''s the right way to do this?

I submitted this earlier, but the web forums went down and I''ve screwed up the thread, so I''m starting over. I''m trying to built a document upload system. The system has a main Document model with different subclasses for different types of documents. With the code below, if I attempt to create a Document, it works fine, but if I attempt to use one of the subclasses, I

I''m running a Rails application with WEBrick server. We are displaying an Image from the server to the Client (Browser). First time on the browser everything looks fine, upon clicking the link, it contacts the server and displays in IE brwoser the image that was stored on the server. But in case if the image gets changed on the server(File Name being the same), then even though i

Hi! OS: CentOS Linux release 7.1.1503 (Core) Dovecot: 2.2.18 Run user listing - doveadm user '*', single user - work. auth[20540]: segfault at 8 ip 00007fd554340c6b sp 00007ffc17c886e0 error 4 in libauthdb_ldap.so[7fd55433b000+a000] dovecot: auth: Fatal: master: service(auth): child 20540 killed with signal 11 (core dumped) dovecot: auth: Error: net_connect_unix(auth-worker) failed:

If a view file cannot be compiled (eg it has a block with a missing ''end'' statement), I''m experiencing WSODs - the browser reports a lost network connection, rather than the helpful compilation error that we used to have. When the compilation fails, ActionView#compile_template raises this error : TemplateError.new(find_base_path_for(file_name || template), file_name ||

Short question: is there way to tell EM to actually send data after send_data call? I''m building a file transferring app. I send Mashal.dump''ed metadata first, and then - the file contents (chunked). I found a silly bug: receive_data() gets marshalled metadata and the first chunk of the file in a single variable. Like that: c1.send_data("meta")

I am using eventmachine 0.8.1 on windows XP and am having very odd problems. This snippet of code gives the error that follows it. class EchoServer def receive_data data puts data send_data ">>>you sent: #{data}" if data =~ /quit/i puts "quitting" close_connection EventMachine::stop_event_loop end end end

Hi all, I decided to check the responsiveness of the pure Ruby vs C extension versions of win32-changenotify. I setup this little file generator program: a = [] 10.times{ |n| a << Thread.new{ File.open("File_#{n}", ''w''){ |fh| fh.puts "test #{n}" } } } a.each{ |t| t.join } The pure Ruby version did not do so well. In some cases it

Good day all. I have successfully installed Engines and LoginEngine and LE is setup and running correctly. However, after installing and setting up UE, when attempting to run the rake bootstrap method I get the following error: undefined method `synchronize_with_controllers'' for Permission:Class My environment is Rails 1.0.0 Ruby 1.8.2 WinXP WebBRICK MySQL 4.1.14 I found the following