similar to: send_data and ie

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 =

Hi I''m doing some server-side graphics with Java2D and I''m trying to stream the resulting image to the browser using send_data. When I try to view the image that I streamed, the browser just shows the URL in the window as a very small image (about .4 kb) when I am using jpeg format. For png, it tells me that the image has errors and can''t load it. Here''s what

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''m reading an image in an link_to_remote call,and then using send_data i send the read image as :type => "image/png" :disposition => "inline"...but when the div tag gets updated i see only ascii characters .....but if i do the same operation using normal call(link_to) i see it functioning normal ....could someone explain . my view: <%=

Does anybody know if there is a big performance/time cost difference between these two methods of serving a file: ------------------------------- #1 ----------------------------------------- send_file "test.png", :type => ''image/png'', :disposition => ''inline'' ------------------------------- #2------------------------------------------

Hi, I''m trying to use send_data to stream a file that is stored on my disk (not as a blob in the database.) So, this is what I''ve tried: send_data File.new(filename).read But, the file doesn''t download. I think send_data expects something other than a String (which is returned by File.read.) Anyone know how to get this working? The reason this is being done is to

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

i''m storing images in database. i have this action in controller: def image begin item = StoredItem.find(:first, :conditions => {:id => params[:id]}) rescue return end return if item.nil? if item.image_binary.nil? render :nothing => true else send_data(item.image_binary, :type => item.image_datatype, :disposition =>

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''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 having trouble serving images which I have saved as db_files with attachment_fu. I use this code to serve the images: Controller -- class PhotoController < ApplicationController def image @photo=Photo.find(params[:id]) send_data(DbFile.find(@photo.db_file_id).data, :type => @photo.content_type, :filename =>

Hi, This may not be a rails issue, if not apologies. I have an application which allows image downloads. The image is downloaded with the code: send_data(@wallpaper.image, :filename => @wallpaper.path, :type => @wallpaper.image_content_type, :disposition => "downloaded") However, Internet Explorer doesn''t download the image, it

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):

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 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 am banging my head against the wall here. I have a gd-generated image that keeps being changed via ajax on my page. Since the image is generated based on querystring parameters (which don''t change) but is based on a model (that is constantly changing), the browser caches the image and you have to do a page refresh to update the image. I have hacked around it by appending a random number

Hi, I would like to load an image (not uploading from the client) and store this image as an instance variable of my model ? I do that because I want to render it with send_data(Person.defaultImage, :type => "image/jpeg", :disposition =>"inline") This is the code I did in my model, that not works ;-(, no error, but the image is not render wth the send_data def

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 =>

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 =>

What I am really trying to do is use the file_column plugin for the file uplaod/storage (to a non-application directory), but serve up the images on my own (without the mage_tag url_for_file_column technique) In the java world, I would simply do something like this: <img src="myImageServlet?id=1"> and myImageServlet would simply return the appropriate mime headers and data