similar to: Issue with caching of .PNG files in IE..

Hi all, I want to Connect to IBM MQ from Rails/Ruby, can it be done? and get the messages from the Queue, then i want to use this message in ruby/rails. Is there a direct way of doing the above job?? If so any packages are available? If there is not a way currently, and any thoughts of how we can do the above job indirectly through some other means or round about ways or workarounds can be

Hi, I''m trying to "validate" the input provided in the login form to see if "username" is entered or not? How do i do this ? In the model i have done like this validates_presence_of username, :body, :message => "Missing required field" But I''m not this message (Missing required field ) getting printed at all? How do i print this? Do i need

Hi, How can we trigger a JavaScript built in function from a <%= link_to %> ie. i have the below statement in my view. I want to invoke a JavaScript function on "MouseOver" of this below text (''TestingMouseOverEvents''). <%= link_to "TestingMouseOverEvents" , :controller => "login", :action => "logout"%> Note: The

Hi all, We have a controller by name "ServiceController" (service_controller.rb) and everything was fine until we upgraded our rails. We recently upgraded Rails from Rails 1.1.6 to Rails 1.2.3. and after that when we try to invoke the "ServiceController" we are getting an error like this "undefined method find for Service:Module" I guess some namespace collision is

Hi, I''m using the "link_to_remote" AJAX function call from my "view", and what i want is after i get the results from the function call, I want to update the result directly into to an image ie. <IMG> tag, how to do this.?? ie. if we want to update the result into a ''div'' element we do like this, which works fine.. link_to_remote(:update

Hi, I have a rails application where I respond to a request by fetching image urls from various web api calls and need to display them as they come available. I am able to display all the images once I get them all, but that causes an unacceptable delay for my user. One approach I am trying is, from my controller, set an @image variable, and then pass in a block to the model that retrieves the

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 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

I am using the date_select helper to generate date select elements in a form. I notice that the generated HTML shows that these selects have the following names: Month: current_job[StartDate(2i)] Day: current_job[StartDate(3i)] Year: current_job[StartDate(1i)] I''m assuming that the Xi identifiers somehow specify the appropriate date part from a date or time value. Can anyone

Hi all I have the following model: class PhotoGallery < ActiveRecord::Base attr_accessible :title, :description, :file_path, :title_photo_id has_many :photos, :dependent => :destroy belongs_to :title_photo, :class_name => ''Photo'', :foreign_key => ''title_photo_id'' validates_presence_of :title, :description, :file_path

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:

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

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/.

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

Hi, I want to offer a CSV download of data in my Rails app (eg. An "Export to Excel" link to grab the current view of tabulated data). However, I can''t seem to break-out of the Rails framework to output this non-HTML data. Even if I eliminate my layout template from my view, the most basic view (no HTML) will still wrap the output in

Hi, I''m trying to figure out the best way to protect images uploaded by users who may wish to keep them private. For example, if they are uploaded in the default file_column location (/public/blah/blah/1/) then someone can simply type the URL http://www.blah.com/blah/blah/1 and get the image. I can store the images in a non-public directory in the rails app (ie: /railsapp/images/X/)

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):

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",

I MAY be able to derive something out of the present example given here : http://blog.codeinmotion.com/index.php/2006/12/22/pdf-generation-in-ruby-on-rails/ but this deals with filling out forms. Is there a simpler example that just allows you to talk to itext , send it some plain text and get back a pdf and then send that pdf to the user as downloadable / renderable data? -- Posted via

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