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  • Hash#key for 1.8.6

    - by Tobias
    Greetings, I am trying to make my 1.9.1 source 1.8.6 compatible. I recognized that there's no Hash#key method. Any idea or method how to solve that? Thanks! Tobias

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  • Passing multiple codeblocks as arguments

    - by doctororange
    I have a method which takes a code block. def opportunity @opportunities += 1 if yield @performances +=1 end end and I call it like this: opportunity { @some_array.empty? } But how do I pass it more than one code block so that I could use yield twice, something like this: def opportunity if yield_1 @opportunities += 1 end if yield_2 @performances +=1 end end and: opportunity {@some_other_array.empty?} { @some_array.empty? } I am aware that this example could be done without yield, but it's just to illustrate. Thanks.

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  • ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

    - by Imran
    Can someone please help as i've spent all day trying to fix this. I installed the latest XAMPP and now i can't connect to mysql from terminal.I checked my .profile file and the PATH seems ok. Does anyone know whats happened and what's the solution? PATH=$PATH:/Applications/XAMPP/xamppfiles/bin export PATH THIS IS A PROGRAMMING QUESTION AS I'M A PHP DEVELOPER TRYING TO DO MY JOB! Thankyou soo much in advance;-)

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  • validates_associated in production

    - by Rien
    Hi all. Imagine a simple model. class Service belongs_to :user validates_associated :user accepts_nested_attributes_for :user end Nothing special right? The validations on the associated User model trigger correctly in development mode. But don't do anything in production. I've added a validates_on_presence :user just like the docs say. This triggers when there's no User associated with the Service, but fill in one thing on the User model and nothing happens! It's driving me up the walls. Am I overlooking something? More info about the MVC: I use formtastic for the forms. Thanks!

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  • Only show content when certain criteria is met?

    - by Elliot
    I'm wondering if theres a best practice for what I'm trying to accomplish... First we have the model categories, categories, has_many posts. Now lets say, users add posts. Now, I have a page, that I want to display only the current user's posts by category. Lets say we have the following categories: A, B, and C User 1, has posted in Categories A and B. In my view I have something like: @categories.each do |category| category.name @posts.each do |post| if post.category_id==category.id post content here end end end The problem with this, is I'm going to show the empty category, as well as the categories that do have content. Is there a more efficient way of going about this? As I don't want to show the empty categories. Best, Elliot

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  • Simplest way to add HTML as a String to a new Nokogiri HTML document body?

    - by viatropos
    I have a bunch of content from the body of one HTML file. How do I put that into the body of a new blank-slate HTML document using Nokogiri? Something like this, but with Nokogiri: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Default Title</title> </head> <body class='default-class'> <%= yield :body %> </body> </html>

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  • Help on using paperclip plugin

    - by Brian Roisentul
    I've just installed this plugin, created the migrations, added everything I needed to make it work(I didn't install ImageMagick yet). The problem is when I get the upload control parameter to save it in my controller, I get something like this: #<File:C:\Users\Brian\AppData\Local\Temp\RackMultipart.2560.6677> instead of a simple string, like C:\Users\Brian\AppData\Local\Temp\RackMultipart.2560.6677 And if I try to read it I get the following exception: TypeError backtrace must be Array of String What am I doing wrong? How do I read it or simply get rid of the # and < symbols?

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  • Rail 3 escaping maruku

    - by Micke
    I am using Maruku with my RoR3 app. But the problem is that when i use the h(text) method to escape the text from the database before i use Maruku it escapes > to &gt; so Maruku wont see this as a blockquote. But i still want to escape the rest of the text so my question is how can i make this work? I don't want to disable the escaping but i don't want it to escape >

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  • Building simple Reddit scraper

    - by Bazant Fundator
    Let's say that I would like to make a collection of images from reddit for my own amusement. I have ran the code on my development env and It haven't gone past the first page of posts (anything beyond requries the after string from the JSON. Additionally, When I turn on the validation, the whole loop breaks if the item doesn't pass it, not just the current iteration. I would be glad If you helped me understand mistakes I made. class Link include Mongoid::Document include Mongoid::Timestamps field :author, type: String field :url, type: String validates_uniqueness_of :url, # no duplicates validates :url, uniqueness :true end def fetch (count, after) count_s = count.to_s # convert count to string link = "http://reddit.com/r/aww/.json?count="+count_s+"&after="+after #so it can be used there res = HTTParty.get(link) # GET req. to the reddit server json = JSON.parse(res.body) # Parse the response if json['kind'] == "Listing" then # check if the retrieved item is a Listing for i in 1...(count) do # for each list item datum = json['data']['children'][i]['data'] #i-th element properties if datum['domain'].in?(["imgur.com", "i.imgur.com"]) then # fetch only imgur links Link.create!(author: datum['author'], url: datum['url']) # save to db end end count += 25 fetch(count, json['data']['after']) # if it retrieved the right kind of object, move on to the next page end end fetch(25," ") # run it

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  • How do I.. get a value for time at 9:00am local, regardless of the timezone?

    - by ander163
    In my app, I need to set a variable for a start time to be 9:00 a.m. local, wherever the user is located. I have a timezone variable for each user and the save and retrieve are all working. But I need to set a variable when I create a new event to be 9:00 am in the user's local time zone. My current method uses the local time of the server, then makes the adjustments for the individual user's time zone. I don't know what I don't know - is there a command to create the value for "Today's date at 9:00 am where you are"? My current code is: t = Time.now.to_date.beginning_of_day + 11.hours (forcing the 2 hour offset between my primary user and the server in a different timezone).

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  • How to use ImageMagick to batch desaturate images?

    - by Zando
    I have an image that is black text with some gray and pale yellowish background. I basically want to keep the text as black as possible, and make the gray and yellow comparatively lighter...at the very least, turn yellow into a light gray. What's the most efficient way to do that in ImageMagick?

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  • How can I quote strings in SASS?

    - by Stavros Korokithakis
    I'm using SASS to generate a @font-face mixin, however this: =remotefont(!name, !url) @font-face font-family = !name src = url(!url + ".eot") src = local(!name), url(!url + ".ttf") format("truetype") +remotefont("My font", "/myfont.ttf") becomes this: @font-face { font-family: My font; src: url(/myfont.ttf.eot); src: local(My font), url(/myfont.ttf.ttf) format(truetype); } No matter how much I try, I can't have it quote either "My font" (with "!name") or "truetype" (it removes the quotes). Any ideas on how I can do this?

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  • Conditional Validation with Paperclip difficult

    - by Michael Schmitz
    Hi, I have an "item", which goes through a multi-page creation process. Images are uploaded at step five, and I keep track of the steps by using the attribute "complete". When validating whether an image is attached with paperclip, I get problems using the code below: validates_attachment_presence :pic1, :if => Proc.new { |u| u.complete == "step5"} It seems that I can't access the "complete" attribute, as the active-record object seems to be the paperclip image. Is there a way for me to check at which point in the process I am and validate conditionally? Thanks, Michael

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  • Trying to extend ActionView::Helpers::FormBuilder

    - by nibbo
    Hello I am trying to DRY up some code by moving some logic into the FormBuilder. After reading the documentation about how to select and alternative form builder the logical solution for me seemed to be something like this. In the view <% form_for @event, :builder => TestFormBuilder do |f| %> <%= f.test %> <%= f.submit 'Update' %> <% end %> and then in app/helpers/application_helper.rb module ApplicationHelper class TestFormBuilder < ActionView::Helpers::FormBuilder def test puts 'apa' end end end This, however, gives me an error at the "form_for" uninitialized constant ActionView::Base::CompiledTemplates::TestFormBuilder Where am I doing it wrong?

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  • heroku time zone problem, logging local server time

    - by Ole Morten Amundsen
    UPDATE: Ok, I didn't formulate a good Q to be answered. I still struggle with heroku being on -07:00 UTC and I at +02:200 UTC. Q: How do I get the log written in the correct Time.zone ? The 9 hours difference, heroku (us west) - norway, is distracting to work with. I get this in my production.log (using heroku logs): Processing ProductionController#create to xml (for 81.26.51.35 at 2010-04-28 23:00:12) [POST] How do I get it to write 2010-04-29 08:00:12 +02:00 GMT ? Note that I'm running at heroku and cannot set the server time myself, as one could do at your amazon EC2 servers. Below is my previous question, I'll leave it be as it holds some interesting information about time and zones. Why does Time.now yield the server local time when I have set the another time zone in my environment.rb config.time_zone = 'Copenhagen' I've put this in a view <p> Time.zone <%= Time.zone %> </p> <p> Time.now <%= Time.now %> </p> <p> Time.now.utc <%= Time.now.utc %> </p> <p> Time.zone.now <%= Time.zone.now %> </p> <p> Time.zone.today <%= Time.zone.today %> </p> rendering this result on my app at heroku Time.zone (GMT+01:00) Copenhagen Time.now Mon Apr 26 08:28:21 -0700 2010 Time.now.utc Mon Apr 26 15:28:21 UTC 2010 Time.zone.now 2010-04-26 17:28:21 +0200 Time.zone.today 2010-04-26 Time.zone.now yields the correct result. Do I have to switch from Time.now to Time.zone.now, everywhere? Seems cumbersome. I truly don't care what the local time of the server is, it's giving me loads of trouble due to extensive use of Time.now. Am I misunderstanding anything fundamental here?

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  • sqlite database, RoR and VCS

    - by ryanprayogo
    What is the common way of dealing with the development.sqlite3 files with VCS (in particular, git)? If I commit this file to the VCS, will it be merged with another developer's copy? Or should each developer run the db:migrate task each time a new migration file is created?

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  • Thin, Sinatra, and intercepting static file request to do CAS authentication

    - by Kenny Peng
    I'm using the casrack-the-authenticator gem for CAS authentication. My server is running Thin on top of Sinatra. I've gotten the CAS authentication bit working, but I'm not sure how to tell Rack to intercept "/index.html" requests to confirm the CAS login, and if the user is not allowed to view the page, return a HTTP 403 response instead of serving the actual page. Does anyone have experience with this? Thanks. My app: class Foo < Sinatra::Base enable :sessions set :public, "public" use CasrackTheAuthenticator::Simple, :cas_server => "https://my.cas_server.com" use CasrackTheAuthenticator::RequireCAS end My rackup file: require 'foo' use Rack::CommonLogger use Rack::Lint run Foo

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  • What does this code do?

    - by Senthil
    I found this in Ryan Bates' railscast site, but not sure how it works. #models/comment.rb def req=(request) self.user_ip = request.remote_ip self.user_agent = request.env['HTTP_USER_AGENT'] self.referrer = request.env['HTTP_REFERER'] end #blogs_controller.rb def create @blog = Blog.new(params[:blog]) @blog.req = request if @blog.save ... I can sort of understand what he is doing. But am confused with the req=(request) line. Any help is appreciated. Thanks

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  • Passenger: RailsBaseURI case sensitive?

    - by Bryan Roth
    I used Passenger to deploy a RoR app to a sub URI on my domain. The problem I'm facing is that the sub URI seems to be case sensitive. Navigating to http://mydomain.com/RailsApp resolves fine. However, if I go to http://mydomain.com/railsapp, http://mydomain.com/railsApp, or any other variation, I get a 404 error. How can these requests using different casings get resolved correctly? Here is my Apache configuration file: <VirtualHost *:80> ServerName mydomain.com ServerAlias www.mydomain.com DocumentRoot /www/mydomain/public <Directory "/www/mydomain/public"> RailsEnv "production" Order allow,deny Allow from all </Directory> RailsBaseURI /RailsApp <Directory "/www/RailsApp/public"> RailsEnv "development" Options -MultiViews </Directory> </VirtualHost> Any help is much appreciated. Thanks!

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  • Error happening when running "rake db:create RAILS_ENV='development' "

    - by Dean
    Hi, I am getting this error in my terminal when i execute the command above, Deans-MacBook:depot dean$ rake db:create RAILS_ENV='development' (in /Users/dean/src/RailsBook/depot) Couldn't create database for {"username"=>"root", "adapter"=>"mysql", "database"=>"depot_development", "host"=>"localhost", "password"=>nil}, charset: utf8, collation: utf8_unicode_ci (if you set the charset manually, make sure you have a matching collation) In database config file i have the following: development: adapter: mysql database: depot_development username: root password: host: localhost I have the mysql gem installed and now i am unsure on what to do next. I am running snow leopard on a Macbook. Does anyone know why this error is happening? Thanks in Advance Dean

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  • jQuery-Facebox - Popup is not working after repaint from AJAX

    - by Bragaadeesh
    Hi I am having a set of Links in my page and I have attached the facebox jQuery functionality so that whenever a link is pressed, it will get a nice popup <a href="coach_selector_popup?day=<%= day %>&hour=<%= hour %>" rel="facebox"> Below is the script that I use for 'facebox'ing. <script type="text/javascript"> jQuery(document).ready(function($) { jQuery('a[rel*=facebox]').facebox() }) </script> The above is working fine. But when I render it again on response to some AJAX call, the functionality is getting lost, meaning when I click on the link I am redirected to a page instead of a facebox popup. I know that I need to do something when I repaint, can someone point me to the right direction?

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  • How to upload a file with watir and IE?

    - by karlthorwald
    I am writing a watir script to test an upload form. But the script does not automatically choose the file that is to be uploaded from my harddrive. Instead IE stops with the file chooser dialog open. As soon as I manually select the to be uploaded file in the dialog and click ok, watir continues as desired. I wonder why it stops. This is from my watir script: ie.file_field(:name, 'upload').set("s:\\localwatir\\Test_Pdf.pdf") ie.button(:name, 'submit').click I got the code from this page: http://wiki.openqa.org/display/WTR/File+Uploads This is the form: <form name="form1" enctype="multipart/form-data" method="post" action="uploadlegacy.php"> <input type="file" name="upload" size="30"> <input type="submit" name="submit" value="upload"> </form> I have found this manual http://svn.openqa.org/svn/watir/trunk/watir/unittests/filefield_test.rb also, but as I do not know what $htmlRoot stands for, I cannot really follow it. Does that mean, I have to put some "file///" into the parameter for set()? If so, how exactly? I am using IE 6 for the testing.

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