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• Ruby on Rails Associations

  - by Eef

  Hey all, I am starting to create my sites in Ruby on Rails these days instead of PHP. I have picked up the language easily but still not 100% confident with associations :) I have this situation: User Model has_and_belongs_to_many :roles Roles Model has_and_belongs_to_many :users Journal Model has_and_belongs_to_many :roles So I have a…

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• Ruby syntax error: unexpected $end, expecting keyword_end

  - by user2839246

  I am supposed to: Capitalize the first letter of string. Capitalize every word except articles (the, a, an), conjunctions (and), and prepositions (in). Capitalize i (as in "I am male."). Specify the first word of a string (I actually have no idea what this means. I'm trying to run the spec file to test other functions). Here's my code: class…

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• Ruby on Rails controller and architecture with cells

  - by dt

  I decided to try to use the cells plugin from rails: http://cells.rubyforge.org/community.html given that I'm new to Ruby and very used to thinking in terms of components. Since I'm developing the app piecemeal and then putting it together piece by piece, it makes sense to think in terms of components. So, I've been able to get cells working…

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• Ruby on Rails: Uploading a modifed site.

  - by Califer

  I'm having a heck of a time getting a site I modified to work correctly. I didn't set the site up originally, and since the person that set it up no longer works with me I had to learn ruby just to make some changes. I made all the changes in the development server and everything worked fine. Then I did a diff on the production and…

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• Project Euler 51: Ruby

  - by Ben Griswold

  In my attempt to learn Ruby out in the open, here’s my solution for Project Euler Problem 51.  I know I started back up with Python this week, but I have three more Ruby solutions in the hopper and I wanted to share. For the record, Project Euler 51 was the second hardest Euler problem for me thus far. Yeah. As always,…

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• Convert your Hash keys to object properties in Ruby

  - by kerry

  Being a Ruby noob (and having a background in Groovy), I was a little surprised that you can not access hash objects using the dot notation.  I am writing an application that relies heavily on XML and JSON data.  This data will need to be displayed and I would rather use book.author.first_name over…

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• Porting Ruby/NCruses Rogue-Like to .NET and FlatRedBall

  - by ashes999

  I created an awesome rogue-like game in Ruby. For the GUI, I used NCurses. Since I'm using FlatRedBall as my engine of choice for Silverlight game development, I want to port this game over. What is the best way to efficiently doing this, and what are the pitfalls I should expect? For example, Ruby is…

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• Python or Ruby in 2011.

  - by Sleeper Smith

  What I'm really asking is, in the current services and technologies provided, which is a more "useful" language? Which one has more opportunity? Some background info first. I'm a .net C# dev for 5 years. Having done a few projects on Amazon AWS, I'm looking to start a few projects of my own. But…

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• Sunspot_Rails Rake Aborted When Running Reindex

  - by Walter Chen

  I'm getting the following output after running rake sunspot:reindex. I'm a novice at Rails. I want to add sunspot_rails to my project to add search functionality (with the hope of deploying the project with Heroku). I'm using Rails 3. I followed the instructions here:…

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• How to migrate data from a Firebird database to PostGreSQL on Linux

  - by Tom Feiner

  Are there any good tools to migrate existing firebird databases to PostgreSQL for Linux systems? I've looked at: FBexport which can be used to dump the data as insert statements, but it's mainly written to export/import from one firebird db to another, not as a migration…

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• postgresql login from remote

  - by Hellnar

  Hello, I want to give remote access to my postresql db (8.2) to computers that are at the same lan, at the default config I have added this line to pg_hba.conf where xxx.xx.xx.xx is the ip of the machine that hosts postgresql. This machine is a windows 2k server. # IPv4…

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• PostgreSQL Backup/Restore

  - by Ian

  What's the best way to backup a postgresql database? I've tried using the documentation at www.postgresql.org, but I always get integrity errors when restoring. Right now I'm using this for backup: pg_dump -U myuser -d mydatabase db.pg.dump for restore: pg_restore…

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• Error starting postgresql server on ubuntu

  - by xain

  Hi, I recently stopped the postgresql database (that was working perfectly), and after a couple of days, when I try to start it, I get the errors: 2011-01-03 23:56:27 CLST LOG: could not translate host name "localhost", service "5432" to address: Name or service not…

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• postgresql login from remote

  - by Hellnar

  I want to give remote access to my postresql db (8.2) to computers that are at the same lan, at the default config I have added this line to pg_hba.conf where xxx.xx.xx.xx is the ip of the machine that hosts postgresql. This machine is a windows 2k server. # IPv4…

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• Postgresql Internals - Documentation

  - by NogginTheNog

  I'm looking for some up-to-date information about postgresql internals, specifically the query optimizer. I've found this link (referred to in the "Further Reading" section of the 8.4 docs):- http://db.cs.berkeley.edu//papers/UCB-MS-zfong.pdf but it seems quite…

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• dublicate display of Posts from controller - conditions and joins problem - Ruby on Rails

  - by bgadoci

  I have built a blog application using Ruby on Rails. In the application I have posts and tags. Post has_many :tags and Tag belongs_to :post. In the /views/posts/index.html view I want to display two things. First is a listing of all posts displayed 'created_at…

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• Using MongoDB with Ruby On Rails and the Mongomapper plugin

  - by Micke

  Hello, i am currently trying to learn Ruby On Rails as i am a long-time PHP developer so i am building my own community like page. I have came pritty far and have made the user models and suchs using MySQL. But then i heard of MongoDB and looked in to it a…

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• Stop output of image if no record - paperclip - Ruby on rails

  - by bgadoci

  I have just installed paperclip into my ruby on rails blog application. Everything is working great...too great. I am trying to figure out how to tell paperclip not to output anything if there is no record in the table so that I don't have broken image…

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• Ruby: Parse, replace, and evaluate a string formula

  - by Swartz

  I'm creating a simple Ruby on Rails survey application for a friend's psychological survey project. So we have surveys, each survey has a bunch of questions, and each question has one of the options participants can choose from. Nothing exciting. One…

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• Image_tag .blank? - paperclip - Ruby on rails

  - by bgadoci

  I have just installed paperclip into my ruby on rails blog application. Everything is working great...too great. I am trying to figure out how to tell paperclip not to output anything if there is no record in the table so that I don't have broken…

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• Need some help for the issues that caused because of secret key in rails application

  - by sam

  I have a weird problem. I have a rails application. When I am trying to run the ruby script/about command, it is displaying the details when the secret key in config/initializers/session_store.rb was removed or commented. When I place the secret…

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• can't use db:seed in rails

  - by Stacia

  I updated my rails gem to 2.3.5 but I keep getting this error when running db:seed: $ rake db:seed --trace (in c:/Documents and Settings/Owner/workspace/thepatstudio) rake aborted! Don't know how to build task 'db:seed'…

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• Installing Paperclip - "undefined method `has_attached_file` for" - Ruby on Rails

  - by bgadoci

  I just installed the plugin for Paperclip and I am getting an error message "undefined method has_attached_file for. Not sure why I am getting this. Here is the full error message. NoMethodError (undefined method…

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• Ruby on rails model and controllers inside of different namespaces

  - by Nelson LaQuet

  OK. This is insane. I'm new to RoR and I really want to get into it as everything about it that I have seen so far makes it more appealing to the type of work that I do. However, I can't seem to accomplish a very…

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• How to execute a Ruby file in Java, capable of calling functions from the Java program and receiving primitive-type results?

  - by Omega

  I do not fully understand what am I asking (lol!), well, in the sense of if it is even possible, that is. If it isn't, sorry. Suppose I have a Java program. It has a Main and a JavaCalculator class. JavaCalculator…

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