I can't seem to figure out how to do this. I am trying to pass four different variables to a single table. To be more specific I am trying to create a "like" in a likes table that also captures the site_id (like an answer), user_id, and the question_id. Here is the set up. class Like < ActiveRecord::Base belongs_to :site belongs_to ...
We can do this: i = Time.now.to_i for example current: i = 1274335854 can I convert i back to time? ...
Hi @all, i'm having a no route matches error after a render :partial <% unless @user.uploads.empty? %> <% @user.uploads.each do |u| %> <tr> <td><%= link_to u.filename, u.filename %></td> it gives me the right filename like http://localhost:3000/DSC00082.JPG. i haven't added anything to my routes. for being new to rails, please excu...
Hi...I am getting the following warning while installing any plugin in my rails application. /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/agnostics.rb:7: warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777 Can someone please tell me how to solve this problem? Thanks ...
WOW. Setting up is complicated, can anyone recommend a link or provide me with some advice. I have two options, a Linux Hosting server with it pre-installed or through NetBeans. Sorry for the generic question. ...
I have bunch of ruby scripts in a git repository and it seems to be really hard to enforce people to write properly indented code. I also have a small ruby script that formats to code to specific standard and now i would like to run that as a a filter script so that junk wont get committed into repository. echo "*.rb filter=rubyfilte...
I first used Rails when it was not so well known about, in 2005. I did some experimental work with it but it has languished due to lack of time. I'm now thinking of persuing the original idea again (with a new implementation) and when researching the latest Ruby and Ruby-on_Rails versions I see Ruby 1.9.2 and a Rails 3.0 beta. I haven'...
I have a plain text list like this: I am the first top-level list item I am his son Me too Second one here His son His daughter I am the son of the one above Me too because of the indentation Another one And I would like to turn that into: <ul> <li>I am the first top-level list-item <ul> <li>I am his so...
In Ruby how does one create a private class constant? (i.e one that is visible inside the class but not outside) class Person SECRET='xxx' # How to make class private?? def show_secret puts "Secret: #{SECRET}" end end Person.new.show_secret puts Person::SECRET # I'd like this to fail ...
I have the following configuration: uname -a : Linux 2.6.24.2 i686 GNU/Linux (Ubuntu) ruby1.8 -v : ruby 1.8.6 (2007-09-24 patchlevel 111) [i486-linux] ruby1.9 -v : ruby 1.9.0 (2007-12-25 revision 14709) [i486-linux] ruby -v : ruby 1.9.0 (2007-12-25 revision 14709) [i486-linux] ls -l /usr/bin/ruby* : lrwxrwxrwx 1 root root 16 2010...
We have a small utility that finds unused items on our server and zips them up then moves them this is written in jRuby. When we go to run this on the actual servers needing clean up they run out of memory before they can complete the operation of the clean up. The java memory is as high as we can get it to run stably on 32bit and we can...
Hello. How can this work? class A attr_accessor :name def initialize params @name = params[:name] @collection << B.new end end class B < A def initialize @my_name = lookup_something(<parent.name>) end end Basically, I need a value from the parent class to use in a lookup on the child class, but I don't wa...
There is a text file containing words with 1 space between each of them. And there is also a command line entry that gives the length of line (output) wanted. Output will be words that fit into the length of the line (taken from command line). Also the first word will be on the left side of the line and the last word will be right side ...
HI all! I would like to insert a hash at the beginning of a selected block of text in VIM (ruby comment). I selected the lines in Visual Mode, but how do I perform the same operation to all lines? Thank you in advance! ...
I am trying to limit a user of my application to voting (liking in this case) a an answer to a question a particular number of times. I am successfully stopping the collection of the user_id but the record keeps getting created. I need for the validation to actually block the creation of the record in the likes table. As you can see ...
I want to use expression: !([1,2,3] & [43,5]).empty? => false !([1,2,3] & [3,5]).empty? => true to check if two arrays contains at least one common value. And I wonder if there is a better way of doing it? Maybe something like: ([1,2,3] & [3,5]).non_empty? How to write non_empty? method? ...
I want to unescape the following string: '\u00020\u0002Standard\u00023\u0002Doe John\u000169\u0002\u0010\u0002Lorem\u0002\u0011\u0002Ipsum\u0002\u0014\u0002' Javascripts unescape function works ok, however how can I unescape it in ruby? Take in mind that unescape(previousString) is 0Standard3Doe John69LoremIpsum. ...
I've written a rails module that generates some javascript for a google map. As the user makes changes on the webpage, I use observe_field to call back to the server to regenerate the map's javascript (without updating the whole page). I'm having trouble finding a good way to insert the new javascript into the page. I've tried <div id=...
I'm not that knowledgeable in this matter so I decided to ask here. Let's say we have some 'library' in Ruby (or any other pass by reference scripting language): class Moo attr_accessor :bar def initialize self end end a = 'a string' b = Moo.new b.bar = a b.bar will obviously be the same object as a. Is it right ...
Is there a best practice way to pass params to mixed-in methods? The class using the mixin could set up instance variables which mixed-in methods expect, or it could pass all necessary params as arguments to mixed-in methods. The background to this is that we have a Rails controller which does publishing of content - but other controll...