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  • code to ping websites works sometimes ...

    - by trustfundbaby
    I'm testing out a piece of code to ping a bunch of websites I own on a regular basis, to make sure they're up. I'm using rails and so far I have this hideous test action that I'm using to try it out (see below). The problem though, is that sometimes it works, and other times it won't ... sometimes it runs through the code just fine, other times, it seems to completely ignore the begin/rescue block ... a. I need help figuring out what the problem is b. And refactoring this to make it look respectable. Your help is much appreciated. require 'net/http' require 'uri' def ping @sites = NewsSource.all @sites.each do |site| if site.uri and !site.uri.empty? uri = URI.parse(site.uri) response = nil path = uri.path.blank? ? '/' : uri.path path = uri.query.blank? ? path : "#{path}?#{uri.query}" begin Net::HTTP.start(uri.host, uri.port) {|http| http.open_timeout = 30 http.read_timeout = 30 response = http.head(path) } if response.code.eql?('200') or response.code.eql?('301') or response.code.eql?('302') site.up = true else site.up = false end site.up_check_msg = response.message site.up_check_code = response.code rescue Errno::EBADF rescue Timeout::Error site.up = false site.up_check_msg = 'timeout' site.up_check_code = '408' end site.up_check_time = 0.seconds.ago site.save end end end

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  • Rails helper, show word not date.

    - by dannymcc
    Hi Everyone, A follow on from this questions: http://stackoverflow.com/questions/3032598/rails-created-at-on-display-if-today Is it possible to output the word TODAY rather than the date when using the following helper? def created_today k k.created_at if k.created_at.to_date == Date.today end <%=h created_today(k) %> Thanks, Danny

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  • Rails HABTM Scoping to current subdomain

    - by Rabbott
    I have the following associations: class User < ActiveRecord::Base has_and_belongs_to_many :brands, :join_table => 'brands_users' has_and_belongs_to_many :companies, :join_table => 'companies_users' end class Brand < ActiveRecord::Base belongs_to :company has_and_belongs_to_many :users, :join_table => 'brands_users' end class Company < ActiveRecord::Base has_and_belongs_to_many :users, :join_table => 'companies_users' has_many :brands, :order => :name end While editing a user I am using the checkbox list of brands. So that I can assign users 'access' to brands, the brands that show up are only the brands that belong to the current company (defined by the subdomain [using subdomain_fu]). The problem I am running into is that when using the default HABTM functionality and the checkbox list, upon save, Rails removes ALL user-brand associations, then re-adds just the ones for the form I just submitted.. How do I scope that to only remove associations of brands who belong to the current company, defined in the subdomain?

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  • Scaffold default files are the best practice?

    - by antpaw
    Hey, i have some experience with MVC. but I'm new to rails. I'm using the scaffold command to generate some default files. The model looks clean and nice, but the controller and the views aren't really dry. The contents of new.html.erb and edit.html.erb are almost the same and the methods new/edit and create/update are doing almost the same thing. In other frameworks i've used only one view for updating and creating new entries and also the same method in my controller by setting the id as an optional parameter. Do they use this structure to keep things RESTful (i have not much of a clue about rest :()? Is it the best practice to use this default stuff for crud?

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  • Display pdf file inline in Rails app

    - by Martas
    Hi, I have a pdf file attachment saved in the cloud. The file is attached using attachment_fu. All I do to display it in the view is: <%= image_tag @model.pdf_attachment.public_filename %> When I load the page with this code in the browser, it does what I want: it displays the attached pdf file. But only on Mac. On Windows, browsers will display a broken image placeholder. Chrome's Developer Tools report: "Resource interpreted as image but transferred with MIME type application/pdf." I also tried sending the file from controller: in PdfAttachmentController: def send_pdf_attachment pdf_attachment = PdfAttachment.find params[:id] send_file pdf_attachment.public_filename, :type => pdf_attachment.content_type, :file_name => pdf_attachment.filename, :disposition => 'inline' end in routes.rb: map.send_pdf_attachment '/pdf_attachments/send_pdf_attachment/:id', :controller => 'pdf_attachments', :action => 'send_pdf_attachment' and in the view: <%= send_pdf_attachment_path @model.pdf_attachment %> or <%= image_tag( send_pdf_attachment_path @model.pdf_attachment ) %> And that doesn't display the file on Mac (I didn't try on Windows), it displays the path: pdf_attachments/send_pdf_attachment/35 So, my question is: what do I do to properly display a pdf file inline? Thanks martin

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  • BigDecimal to_s does not match to_f

    - by Chris Bisignani
    Is the BigDecimal class broken? It seems like the following should never, ever occur: Note that a.to_f != a.to_s.to_f a.class = BigDecimal a.to_f = 18658.1072928 a.to_s = "10865.81072928" b.class = BigDecimal b.to_f = 10000.0 b.to_s = "10000.0" (a - b).to_f = 865.81072928 a.to_f - b.to_f = 8658.1072928 Any ideas as to what might be going wrong?

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  • Duplicating an array of strings.

    - by Jon
    arr = ["red","green","yellow"] arr2 = arr.clone arr2[0].replace("blue") puts arr.inspect puts arr2.inspect produces: ["blue", "green", "yellow"] ["blue", "green", "yellow"] Is there anyway to do a deep copy of an array of strings, other than using Marshal as i understand that is a hack. I could do: arr2 = [] arr.each do |e| arr2 << e.clone end but it doesn't seem very elegant, or efficient. Thanks

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  • Datamapper In Memory Database

    - by Daniel Ribeiro
    It is easy to setup Datamapper with a Sqlite3 in memory database with: DataMapper.setup :default, 'sqlite3::memory:'. However, when testing, I'd like to destroy the whole in memory database after each test, instead of invoking automigrate! as a shortcut on dropping everything. Is it possible? Or is it enough to set the default repository to nil, and let the garbage collector dispose of it?

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  • Pull datasets from DB and manipulate into separate arrays

    - by dresdin
    My DB has four fields, date:date, morning:integer, afternoon:integer, evening:integer. Google charts needs the data split into one array per dataset (example below). What's the best way to do this? ['Day', 'Morning', 'Afternoon', 'Evening'], ['06/27/13', 1000, 400 234], ['06/28/13', 1170, 460 275], ['06/29/13', 660, 1120 377], ['06/30/13', 1030, 540 934] I've tried this without much luck: var data = google.visualization.arrayToDataTable([ <% @todo.each do |t| %> ['Day', 'Morning', 'Afternoon', 'Evening'], [<%= t.date.strftime("%m/%d/%y") %>, <%= t.morning %>, <%= t.afternoon %>, <%= t.evening %>] <% end %> ]);

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  • acts_as_revisable 'loses' previous models created before migration

    - by cbrulak
    I have the following the standard, regular post sample app. I created some posts then decided to introduce acts_as_revisable After following the instructions at http://github.com/rich/acts_as_revisable I see that the previous posts are not appearing in the Post.all call. However, if I use the console and do Post.find_by_sql("SELECT * FROM Post WHERE ID=1") the post shows up. Any ideas? Thanks

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  • rails: date type and GetDate

    - by cbrulak
    This is a follow up to this question: http://stackoverflow.com/questions/2930256/unique-responses-rails-gem I'm going to create an index based on the user id, url and a date type. I want date type (not datetime type) because I want the day, the 24 hour day to be part of the index to avoid duplication of page views counts on the same day. In other words: A view only counts once in a day by a visitor. I also want the default value of that column (viewdate) to be the function GETDATE(). This is what I have in my migration: execute "ALTER TABLEpage_viewsADD COLUMN viewdate datetime DEFAULTGETDATE()`" But the value viewdate is always empty. What am I missing? (as an aside, any other suggestions for accomplishing this goal?)

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  • Unicorn_init.sh cannot find app root on capistrano cold deploy

    - by oFca
    I am deploying Rails app and upon running cap deploy:cold I get the error saying * 2012-11-02 23:53:26 executing `deploy:migrate' * executing "cd /home/mr_deployer/apps/prjct_mngr/releases/20121102225224 && bundle exec rake RAILS_ENV=production db:migrate" servers: ["xxxxxxxxxx"] [xxxxxxxxxx] executing command command finished in 7464ms * 2012-11-02 23:53:34 executing `deploy:start' * executing "/etc/init.d/unicorn_prjct_mngr start" servers: ["xxxxxxxxxx"] [xxxxxxxxxx] executing command ** [out :: xxxxxxxxxx] /etc/init.d/unicorn_prjct_mngr: 33: cd: can't cd to /home/mr_deployer/apps/prjct_mngr/current; command finished in 694ms failed: "rvm_path=$HOME/.rvm/ $HOME/.rvm/bin/rvm-shell '1.9.3-p125@prjct_mngr' -c '/etc/init.d/unicorn_prjct_mngr start'" on xxxxxxxxxx but my app root is there! Why can't it find it? Here's part of my unicorn_init.sh file : 1 #!/bin/sh 2 set -e 3 # Example init script, this can be used with nginx, too, 4 # since nginx and unicorn accept the same signals 5 6 # Feel free to change any of the following variables for your app: 7 TIMEOUT=${TIMEOUT-60} 8 APP_ROOT=/home/mr_deployer/apps/prjct_mngr/current 9 PID=$APP_ROOT/tmp/pids/unicorn.pid 10 CMD="cd $APP_ROOT; bundle exec unicorn -D -c $APP_ROOT/config/unicorn.rb - E production" 11 # INIT_CONF=$APP_ROOT/config/init.conf 12 AS_USER=mr_deployer 13 action="$1" 14 set -u 15 16 # test -f "$INIT_CONF" && . $INIT_CONF 17 18 old_pid="$PID.oldbin" 19 20 cd $APP_ROOT || exit 1 21 22 sig () { 23 test -s "$PID" && kill -$1 `cat $PID` 24 } 25 26 oldsig () { 27 test -s $old_pid && kill -$1 `cat $old_pid` 28 } 29 case $action in 30 31 start) 32 sig 0 && echo >&2 "Already running" && exit 0 33 $CMD 34 ;; 35 36 stop) 37 sig QUIT && exit 0 38 echo >&2 "Not running" 39 ;; 40 41 force-stop) 42 sig TERM && exit 0 43 echo >&2 "Not running" 44 ;; 45 46 restart|reload) 47 sig HUP && echo reloaded OK && exit 0 48 echo >&2 "Couldn't reload, starting '$CMD' instead" 49 $CMD 50 ;; 51 52 upgrade) 53 if sig USR2 && sleep 2 && sig 0 && oldsig QUIT 54 then 55 n=$TIMEOUT 56 while test -s $old_pid && test $n -ge 0 57 do 58 printf '.' && sleep 1 && n=$(( $n - 1 )) 59 done 60 echo 61 62 if test $n -lt 0 && test -s $old_pid 63 then 64 echo >&2 "$old_pid still exists after $TIMEOUT seconds" 65 exit 1 66 fi 67 exit 0 68 fi 69 echo >&2 "Couldn't upgrade, starting '$CMD' instead" 70 $CMD 71 ;; 72 73 reopen-logs) 74 sig USR1 75 ;; 76 77 *) 78 echo >&2 "Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>" 79 exit 1 80 ;; 81 esac

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  • 'button_to' gives me an ugly URL!

    - by Tyler
    Im trying to get an 'add to cart' button to work. When I use <%= button_to "Add to Cart", :acton = "add_to_cart", :id = @product % and then click the button, I get a URL that puts the action after the ID, like this: 'http://localhost:3000/store/show/1?acton=add_to_cart.' The cart page does not load. What I need is a URL that looks like this: 'http://localhost:3000/store/add_to_cart/1'. I can get that result (and the cart to work) if I don't use 'button_to': <% form_for @product, :url = {:action = "add_to_cart", :id = @product} do |f| % <% end % But, what the heck? Why can't I use 'button_to'?

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  • Rubyists: What is this called?

    - by Matt Darby
    Say I have a pool of enumerables that I want to group by an attribute: cars = Car.all.group_by(&:color) Then I want to iterate over those cars like so: cars.inject([]) do |stack, (color, cars)| stack << cars.each do |car| ... end end What is the term for the block variable extension (between the parentheses)?

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  • Amazon S3 enforcing access control

    - by KandadaBoggu
    I have several PDF files stored in Amazon S3. Each file is associated with a user and only the file owner can access the file. I have enforced this in my download page. But the actual PDF link points to Amazon S3 url, which is accessible to anybody. How do I enforce the access-control rules for this url?(without making my server a proxy for all the PDF download links)

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  • ERB Template removing the trailing line

    - by KandadaBoggu
    I have an ERB template for sending an email. Name: <%= @user.name %> <% unless @user.phone.blank? %> Phone: <%= @user.phone %> <% end %> Address: <%= @user.address %> When the user hasn't set the phone then the email body is as follows: Name: John Miller Address: X124 Dummy Lane, Dummy City, CA I am trying to remove the blank line between Name and Address when Phone is empty. Name: John Miller Address: X124 Dummy Lane, Dummy City, CA I have tried to use <%--%> tags(to remove the trailing new line) without any success. Name: <%= @user.name %> <%- unless @user.phone.blank? -%> Phone: <%= @user.phone %> <%- end -%> Address: <%= @user.address -%> How do I work around this issue?

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  • Rails: Extracting the raw url from the request

    - by pankajbhageria
    I am working with Rails 2.2. The required behaviour is as follows: I have a link(with a ajax link embedded) xyz.com/admin#page1 When I go to the above page, I should be redirected to the login page, if I am not logged in. After I log in, I should be taken back to xyz.com/admin#page1 For this I need to store the url in session when I visit any page. The problem is that when I do request.uri, I get xyz.com/admin But I want to store xyz.com/admin#page1 Regards, Pankaj

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  • Rails Pretty URL with Decimals

    - by Kevin Sylvestre
    I have a rails application that allows searches using longitude and latitude. I have added a 'pretty' route with: map.connect 'stores/near/:longitude/:latitude', :controller => 'stores', :action => 'index' This works for integer latitude and longitude values (http://localhost:3000/stores/near/-88/49) but fails for decimal values (http://localhost:3000/stores/near/-88.341/49.123) giving: Routing Error No route matches "/stores/near/-88/49.0" with {:method=>:get} Any ideas how to use pretty URLs in rails with decimals?

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  • Rails creating a new session every page view

    - by danhere
    Hi everyone, I'm following the Agile RoR book somewhat to apply it to a project for school. It's going good until I get to sessions. I continually get Authenticity Invalid Tokens and when I look at my sessions table in the database, there's a new session being created every time I refresh the page. Is that right or is something messed up? Thanks.

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  • Rails best practice on conditional parameters in a controller action

    - by randombits
    I have a controller create action looks for one or more parameters in the following ruleset. Let's say we have two parameters, foo and bar. The rules are the following: 1) if foo doesn't exist in the parameter list, bar must. 2) if bar doesn't exist in the parameter list, foo must. 3) they can both co-exist. they can't both be omitted (that's redundant with my rules above :) ) Can anyone show an example in Rails on how this is handled in the controller? Should I use a before_filter? Would appreciate some guidance as this isn't something that ActiveRecord validates.. so I'd need to build an error message to the user directly from controller logic, not model logic. For bonus points, I output the error in XML, so if you can show how that's done, that'd be great. Hypothetically let's call the resource "Lorem", so it is created via http://foo/lorem.xml and we have lorem_controller.rb.

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  • Show a 404 instead of 500 in Rails

    - by Victor P
    In my rails app I have defined the routes so users can access records like http://mydomain.com/qwe2 But if they type a wrong "qwe2" they get a 500 page. I think a 404 would be more appropriate. How can I change the error page that is shown? Thanks

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  • How to build an easy Rails authentication with OpenID and OAuth1.0a-2.0?

    - by Andrei
    Hi, I'am looking for an easy authentication for my users mostly via facebook, but keeping OpenID and other OAuth alternatives as well. For the case if something will go very bad, I will ask my users to optionally provide their email address, which should be obtained via OpenID or OAuth if possible. The same thing is about their name. I am a newbie in Rails, so I started with Railscasts.com #160 (authlogic) and #170 (authlogic and OpenID), however, I had some problems trying to sign in with my Google Account. As I understand, it will take some effort to adjust #170 for my objectives. On the other hand, there is gem authlogic_rpx which will possibly provide me the needed functionality (see http://rails-authlogic-rpx-sample.heroku.com/signin). What would you do? Is it reasonable to put one more step (RPX) in the authentication logic?

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  • Rails3 renders a js.erb template with a text/html content-type instead of text/javascript

    - by Yannis
    Hi, I'm building a new app with 3.0.0.beta3. I simply try to render a js.erb template to an Ajax request for the following action (in publications_controller.rb): def get_pubmed_data entry = Bio::PubMed.query(params[:pmid])# searches PubMed and get entry @publication = Bio::MEDLINE.new(entry) # creates Bio::MEDLINE object from entry text flash[:warning] = "No publication found."if @publication.title.blank? and @publication.authors.blank? and @publication.journal.blank? respond_to do |format| format.js end end Currently, my get_pubmed_data.js.erb template is simply alert('<%= @publication.title %>') The server is responding with the following alert('Evidence for a herpes simplex virus-specific factor controlling the transcription of deoxypyrimidine kinase.') which is perfectly fine except that nothing happen in the browser, probably because the content-type of the response is 'text/html' instead of 'text/javascript' as shown by the response header partially reproduced here: Status 200 Keep-Alive timeout=5, max=100 Connection Keep-Alive Transfer-Encoding chunked Content-Type text/html; charset=utf-8 Is this a bug or am I missing something? Thanks for your help!

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  • How to count the length (number of lines) of a csv file in Rails?

    - by Mathias
    Hello, I have a form (Rails) which allows me to load a .csv file using the file_field. In the view: <% form_for(:upcsv, :html => {:multipart => true}) do |f| %> <table> <tr> <td><%= f.label("File:") %></td> <td><%= f.file_field(:filename) %></td> </tr> </table> <%= f.submit("Submit") %> <% end %> Clicking Submit redirects me to another page (create.html.erb). The file was loaded fine, and I was able to read the contents just fine in this second page. I am trying to show the number of lines in the .csv file in this second page. My controller (semi-pseudocode): class UpcsvController < ApplicationController def index end def create file = params[:upcsv][:filename] ... #params[:upcsv][:file_length] = file.length # Show number of lines in the file #params[:upcsv][:file_length] = file.size ... end end Both file.length and file.size returns '91' when my file only contains 7 lines. From the Rails documentation that I read, once the Submit button is clicked, Rails creates a temp file of the uploaded file, and the params[:upcsv][:filename] contains the contents of the temp/uploaded file and not the path to the file. And I don't know how to extract the number of lines in my original file. What is the correct way to get the number of lines in the file? My create.html.erb: <table> <tr> <td>File length:</td> <td><%= params[:upcsv][:file_length] %></td> </tr> </table> I'm really new at Rails (just started last week), so please bear with my stupid questions. Thank you!

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