similar to: send_file VS. send_data (performance)

So this is the original code I used, and it worked send_file ''vendor/sprites/not-found.png'', {:filename => "sprite-not-found.png", :type => "image/png", :disposition => "inline"} Now I switched it to this (going to be adding imageMagick) send_data File.read(''vendor/sprites/not-found.png''), {:filename =>

I have a form_remote_tag that calls a method to print out a csv file for download. If I tell the form_remote_tag to update a div the data comes up in that div, but otherwise I can''t get the browser to acknowledge the sent file. >From view: <%= form_remote_tag :url => {:action => "csv_dump" }%> <%= submit_tag "Download Complete List" ,:name

I''m attempting to use send_file to send an image file from public/images. The file is world readable. I keep getting the following error: A ActionController::MissingFile occurred in account#current_logo: Cannot read file public/images/logo.png /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/streaming.rb:55:in `send_file'' I''ve tried supplying

My application accepts a form to create multiple large(100''s of MB) temporary files and then zip''s them up to send off to a user. I have the files constructed, and the zipping working. The problem is that if I use send_file to send the zip off to the user, I cannot delete the file afterwards as it seems send_file forks off another process and deletes the file before the

I''m trying to add a link to download a zip file. I created a controller method that makes the call to send_file: def getzip send_file ''file.zip'' end When I navigate to this link I get a MissingFile exception. The file definitely exists (and U triple-checked paths and spelling) and the permissions are 644. I tried moving it to the /public folder and updating the

Hello, We are using JRuby 1.5.1/ruby 1.8.7/Rails 2.3.8 with a GWT front end. I''m having an issue when attempting to send a server side .csv file to the user using rails send_file. my code is: send_file(path_to_file, type=>''text/csv'') While this is returning fine with an http status of 200, the client side save as dialog is never opening for the user to receive

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

I''m a newbie having trouble using send_data to send a jpeg file to the browser for display in an html img tag. This is the relevant code from my controller (photos_controller.rb): def retrieve @photo = Photo.find(params[:id]) send_data File.read(@photo.abs_img_path), :type => "image/ jpeg", :disposition => "inline" end def download @photo =

I have a controller that serves up images from a different location from /public/images/ by using send_file or send_data on /media/thumbs/ 38 for example In lighttpd I have: expire.url = ( "/media/" => "access 10 years", "/stylesheets/" => "access 10 years" , "/javascripts/" => "access 10 years",

Anyone know how to send a file/data to the user agent (download it) using #send_file or #send_data, *and* render a new page in the same action? This just sends the file and doesn''t render the page: def gimme ... send_data(our_data, :filename => ''output.csv'', :disposition => ''attachment'') end And this will give a Double-Render error:

Hi, Controller code: if params[:main_image] image = Image.new image.blob = params[:main_image].read @product.main_image.destroy if @product.main_image @product.main_image = image end When I try to display the image using send_data, I get the following error: ArgumentError (string contains null byte):

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 did a search and couldn''t find wat''s the problem with my code... it seems everything is the same and the result is what i expected but i am not sure where went wrong.... using send_data function to send the csv file to the client, the file sending is successfully but when i opened the csv file, something is wrong... every statement got a "......" inverted

I''m trying to display an image in a view from MySQL, but I''m not sure where to put the send_data call. Any help would be great. :) -- Posted via http://www.ruby-forum.com/.

I am using rmagick to convert files stored as a tiff to either pdf or jpg for display to the user. A snippet of test code from the controller follows. It works OK. ( it does need a sanitizer ) require RMagick def pdf @sdoc = Sdoc.find(params[:id]) @fname = ''/var/www/images/'' + @sdoc.fname @nf = Magick::ImageList.new(@fname)

Has anyone managed to use send_file with :stream => true? I''m currently still developing using Rails 1.1.2 on windows xp so might be OS problem. But google results show this also happen on linux hosts. I think using send_file with :stream => false is pointless. Since send_data does exactly the same thing. Or am I mistaken? Thanks. -- Posted via http://www.ruby-forum.com/.

Hi all I made a pdf file in ruby and to display it used the method send_data like # send_data pdf.render, :filename => "Hello.pdf",:type => "application/pdf" # Now I want to open it in another window or as a popup. How can I achieve it? Thanks to all. Sainaba. -- Posted via http://www.ruby-forum.com/.

I know we already mentioned this before on the list but I couldn''t find it in the archives. Is there a way to differentiate the versions for ruby/mswin32 so that I could run a command like: # sudo gem install mongrel --source=http://mongrel.rubyforge.org/releases/ --include-dependencies --version 1.0 and have it not prompt me like this: Select which gem to install for your platform

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

Guys & gals, I''m also learning RoR (using v2.3.4). I''ve got a basic scaffold working for image file creation, and - to a point - image file display. The send_data function is working in my controller - no problem. The model code is able to parse the uploaded file construct too. def show @image = Image.find(params[:id]) send_data(@image.binary_data, :type =>