similar to: ActiveRecord callbacks not called

hi, i have centos 4.2. I have install a PCI card having serial port. when the os is booted it detects the new hardware ( serial port) .a device is also created /dev/ttyS0. the port works very goog on the same pc in windows XP. but when i connect any serial device to that port in linux it does not work. in /proc/ioports there is entry for that port as 0000-001f : dma1 0020-003f :

Hi there, Is it possible to do an effect.fade without removing the hidden document from the flow when in becomes invisible? I have a line of images (initially all invisible) [] [] [] [] [] And a list of links - link 1 - link 2 - link 3 - link 4 - link 5 And what I want to happen is to have the images appear on link mouseover and disappear on mouseout but for the images to maintain their

Hi useRs, I would like to know what R users are employing to get their images/plots created in R, into Excel sheets. I am aware of the various packages (xlsReadWrite, RODBC) to get data frames into R, but I would like to copy images too. Thank you for any help in solving this problem. Regards, Harsh Singhal

Hi, im getting a little trouble with this, im using TinyFile as the example to upload files http://wiki.rubyonrails.com/rails/pages/TinyFile/versions/20 All goes well but the files uploaded are saved with permissions 600 (linux) and in the case of images arent showed on the browser(but uploaded and stored in the server without problems) i have to manually ftp to the uploaded files folder and

PC: HP Vetra VL400 Mainbood: Intel815 BIOS: Phonix 4.0 release 6.0 OS: REDHAT 9.0 I installed the X100P in PCI slot 2 and disable the USB port, serial-port and parallel-port in BIOS. I can't found the X100P card in " cat interrupts" But I can found the card in the "cat ioports" use "lspci" I found the X100Pcard use the interrupts 11 too. Who can help me to solve

Hello, I am testing out a partial that calls another, general purpose partial as part of its processing. Is there a class I can mock in Rails views to accomplish what I need? That is, could I do something like the following: SomeClass.should_receive(:render).with(:partial => "foo", :locals => { :bars => bars }) I tried breakpointing the view, and it looks like I am greeted

I have a question about the usage of Merb::Controller#url. When I have nested resources, requesting the new action works differently than I expected. I was wondering what the intended usage is. For example: Say I have r.resources :articles do |article| article.resources :article_attachments end irb(main):002:0> show_routes [:articles, "/articles"] [:article_attachments,

I''m using a legacy table, where the unique id is not ''id'' I have a Model class like the following: class Article < ActiveRecord::Base set_primary_key "ARTICLE_ID" end however, using a link_to like the following (modified scaffolding), the link has no id value: <% for article in @articles %> <tr> <% for column in

Hi, I have a small blog application, and I would like to shorten its routes. Here they are: Blog::Application.routes.draw do resources :categories do resources :articles do resources :comments end end A rake routes command produce the following lines: GET /categories/:category_id/articles/:article_id/comments(.:format)

I am using rails 3. I have problem in out put so please tell me my mistake routes ------- entermatch ''/view_article/:user_id/:article_id'' => ''articles#view_article'', :as => :view_article resources :users do resources :articles do resources :comments end end article controller ------------------ def view_article @user =

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 have a csv file and in my controller: uploaded_file = params[:upload][:csv].read @rows << FasterCSV.parse(uploaded_file) I want to put in @rows only the first 10 lines but the read method reads all the file. How can I do? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I have to tables: "articles" and "groups". Between I have article_groups as a jointable. Now I want to select every article who is a member of group with id ''1'' and id ''2''. Whats best way to get that? Extract from schemas: CREATE TABLE articles ( id int auto_increment, ingress text NOT NULL, story_text longtext, constraint fk_items_users

http://r.789695.n4.nabble.com/file/n4619404/pic1.jpg cesres_ext <- nls(lnGDP85~ intercept + (alpha/(1-alpha-beta)) * lns_ikonngdelta + (beta/(1-alpha-beta)) * lns_ihonngdelta + 0.5 * ((sigma-1)/sigma) * (1/((1-alpha-beta)*(1-alpha-beta))) * (alpha * taylor1 + beta * taylor2 - alpha*beta*taylor3) ,start = list(intercept=8, alpha=0.2, beta=0.4, sigma=1.2),data=data) I have this model. I use

I got this error: NoMethodError in PictureController#new You have a nil object when you didn''t expect it! The error occured while evaluating nil.uploaded_file= and the line code is here: @picture.uploaded_file = @params[''picture_file''] -- Posted via http://www.ruby-forum.com/.

i have a rails app with a form that allows uploading an image file. I take the image file and read it into rmagick to verify that it''s an image. For some reason I can''t catch an exception thrown by rmagick inside the app. After an invalid image file is uploaded the process just hangs. I have to kill mongrel and restart to use the app again. img =

Hi All, I am a newb to Rsync and I have a question. I am trying to back up our main server to a remote server. I have rsyncd.conf on the remote computer. I ran this command from the remote computer and it looked great the whole 2 seconds it took to run....it said it completed but now....I cant find any of the files on the remote server. Here is my rsyncd.conf #Global Options # motd file =

I''m trying to create a document upload system, where most of the code is the super class Document and just the path to file on the system is controlled by the sub classes. When I attempt to use my code, I get the following when I try to save the document. can''t dump anonymous class Class Any ideas? ** Migration ** class CreateDocuments < ActiveRecord::Migration def

Hello, I am having trouble getting data ranges to work correctly. I am using the following command to load the db: index << {:title => row[7].to_i, :date => Date.strptime(row[3], ''%Y-%m-%d''), :page_id => row[5].to_i, :page => row[6].to_i, :content_type => row[1].to_i,

Hello, I''m trying to intercept delete call in my model but before_destroy callback is never called... Somebody knows why ? Thanks The controller : def delete Image.delete(params[:id]) redirect_to :action => "list" end The model : class Image < ActiveRecord::Base set_table_name "publish_images" belongs_to :article before_destroy :on_destroy