Ruby is a multi-platform open-source dynamic object-oriented interpreted language created by Yukihiro Matsumoto (Matz) in 1993.

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Similar methods to update today's sales, revenue, and profit

Please help me to refactor. I have two models, conversion & statistic. Methods ...
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45 views

Mathematical expression evaluator and equation solver

I'm trying to implement a mathematical expression evaluator and equation solver, and based on extensive online research and my own experimentation have come to the conclusion that the best way of ...
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1answer
27 views

Rails integration testing: Should we use strings or named routes in http requests?

When integration testing Rails applications HTTP request helpers can take a string or a named route as the first argument. I find myself writing: ...
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Fixing route problems in ruby on rails app [on hold]

I'm a ROR newbie and I've somehow broken the create and edit functionalities within my app. I have individual pages for each artwork I've uploaded, a _form that enables editing of those artworks (and ...
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3answers
97 views

Refactoring a case statement in ruby [closed]

I have the following case statement where I'm using ranges to find a value. This works but it seems like it could be better. Any suggestions on a more "ruby" way of doing this? ...
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2answers
195 views

Multiple attempts to find the best icon

I have a series if statements where I am trying to find the highest resolution file in an set of files. Is there a way that I can refactor this code to be shorter and or cleaner? ...
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1answer
42 views

Rails configuration variants for production / development environments

How can duplication be removed from this? ...
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35 views

How to express `not 0 neither nil` in ruby [closed]

I want to check if foo is not 0 neither nil. What come to my mind are these two expression. ...
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35 views

Is it bad practice to fake a pass method in ruby? [closed]

Ruby doesn't have a pass method to 'do nothing' the way Python does - if I want a ternary statement to do something on true, but nothing on false (as in the code below) is it bad practice in Ruby to ...
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1answer
36 views

Ruby Soduku X-wing solution

I have written a Sudoku solver, for the euler problem and also packaged it into a ruby gem. In my solution strategies I do a lot of iteration (double/triple nested loops, I am coming from Java/C). ...
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1answer
50 views

Code Quality Catch-22 — Duplication vs Complexity

I've started using Code Climate to assess some of my code quality and ran into a situation that I can't seem to find a good solution for. In short, in trying to solve some code duplication that ...
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1answer
53 views

Strategy to reduce duplicate code in many similar modules

The Situation I have created some code in the form of modules that each represent a medical questionnaire (I'm calling them Catalogs). Each different questionnaire ...
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3answers
75 views
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2answers
34 views

Product matcher refactoring regarding scopes and arrays

I know I have seen this before and I can't remember how to fix it or find where I saw how to fix it: ...
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1answer
22 views

The block should return the user's current_active_role

def current_active_role user_roles.each do |r| if r.is_active_role return r end end return nil end The block above returns ...
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1answer
27 views

Refactoring a simple Ruby CLI program

I tried to help someone in Stackoverflow with a refactoring exercise. Did many changes to his original code and made a somewhat decent solution (at least in my eyes). Was thinking, whether someone can ...
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1answer
29 views

Ruby program to simulate a game of Narcotic Solitaire

In the game of Narcotic Solitaire, played with a standard 52-card deck, the player deals a row of four cards onto the table, from left to right. If all four cards are of the same value, they are ...
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1answer
28 views

Refactor Net::SFTP Upload

I have a method to upload a file using the Net::SFTP gem. My method looks like this: ...
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1answer
58 views

An easier way to test a valid username

I have the following requirement for valid usernames: Only alphanumeric characters and - Must not start with a - I wrote this regex (on Rubular): ...
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1answer
54 views

Ruby selenium script waiting for an element to disappear

I'm a Java developer, I'm new to Ruby and I'm worried that I'm forcing or not-so-well using the goodness of the Ruby syntax. What do you think about the Exception catching and how to print it in ...
4
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1answer
48 views

RSpec test for pagination

This is a Rspec test for pagination in Rails project. I'm not sure if I should write the test in spec/requests or ...
3
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1answer
49 views

Reading a file in chunks

I currently have the following class that takes a custom file object as an argument and makes a copy of the file locally. ...
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1answer
50 views

Making an HTTPS request more readable

I think the snippet is too nested having too many blocks. It needs to be refactored to make the logic more readable. The try exception is the first level block ...
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4answers
87 views

Tic Tac Toe in Ruby

This 2-player tic-tac-toe game is the first thing I've really written from scratch in Ruby, without the guidance of a tutorial. I'm interested in knowing what could be improved upon to make the code ...
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2answers
66 views

Ruby hashes of status counts

I have a method that takes a model object, reads through its children and returns a hash of status counts. It should only return a count on a status if one exists. This method works, but I was ...
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1answer
31 views

Displaying shows with videos

My method takes a long time to respond, so I'd like to make this method more efficient. I'd also like this method made with joins. ...
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2answers
55 views

Convert string array to object with true/false flags

Currently a filter parameter of a GET request is used to designate items' categories that will be requested from database and displayed. The parameter contains ...
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3answers
92 views

Find the last element of a list

Find the last element of a list from codewars.com Example: last( [1,2,3,4] ) # => 4 last( "xyz" ) # => z last( 1,2,3,4 ) # => 4 I completed this ...
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2answers
293 views

FizzBuzz from a casual rubyist

As a casual Rubyist I am mainly interested, how ideomatic my solution is. ...
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6answers
167 views

Project Euler problem 4 in Ruby

A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99. Find the largest palindrome made from the product of two ...
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2answers
88 views

Writing successive function calls

I have a Ruby function which generates and saves a report. I'm looking for a Clean Code way of writing this: ...
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4answers
262 views

Count cars passing in opposite directions

The problem comes from codility, whose coding problems I'm starting to enjoy as their evaluation criteria really looks at runtime. Task description A non-empty zero-indexed array ...
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4answers
61 views

Validating a Collection of IPv4s

I have a method within a class that validates all proxy addresses are valid on initialization. I've tried to refactor this a bit, but this seems to be the best I can do. Any suggestions and/or tips as ...
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3answers
111 views

Making kexec reboots less painful

kexec is a way for a Linux kernel to directly boot another Linux kernel without going through the usual BIOS startup sequence, which can take several minutes on enterprise servers. The big problem ...
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1answer
59 views

Controller action to process orders and payments

I'm trying to reduce the if statements and simplify this create action. ...
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3answers
298 views

Towers of Hanoi

I am just learning how to code in Ruby now with no prior experience. This is 3 towers of Hanoi where the user selects where to choose from and where to go with each disc, and not to have a bigger disc ...
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3answers
70 views
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1answer
135 views

Project Euler - Problem #11 - Ruby

As a beginning Ruby programmer I implemented a solution for Project Euler, Problem #11. (The problem is described in the comment below.) I'll be grateful for any suggestions for improvement ...
2
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1answer
55 views

DRY-ing up some rspec

I have an rspec spec test that has two sets of the same tests (from 24 Pull Requests). I thought I'd refactor the spec whilst I fixed something else. Normally I just do a basic ...
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2answers
52 views

Rendering a selection box for 50 states

I was creating a Rails form where users have to enter their state. I ended up creating a select tag which is really, really ugly. I'd like to think there's a better way of writing this. ...
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2answers
67 views

Factory Girl in Rails

I have a FactoryGirl page that generates same data but in two different languages. The variable names are the same. How do I write it in the smartest way possible without having to write a huge bunch ...
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3answers
102 views

Refactoring RSpec/Capybara tests

Is there a better way of representing this RSpec code on Rails using Capybara? There are three scenarios only for when the sign up validations fail so is there a better way of representing them ...
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3answers
72 views

URL resolver for Users, Lessons, and Series

My Resolver.resolve class returns a hash of objects and I would like to return a specific object if it exists. Is there a more concise way to write this? ...
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2answers
68 views

Reservation validation

I got a Reservation model that has reservation_start and reservation_end. Then I have the ...
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2answers
61 views

CSV File Parser in Ruby - Attempt No. 2

The following is my second attempt at a basic CSV parser in Ruby. I've addressed suggestions that I've got for my previous version here. I have omitted all test cases - the code listing would be too ...
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1answer
55 views

Reduce memory use for a property geolocator

I have to run a script against 40 million objects in my database: I wrote the script and I want 10 instance of it so I process my objects faster. The goal is to find all the neighborhood for each ...
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1answer
80 views

Avoiding Duplicates in a Ruby on Rails Factory Girl Factory with Fake

I have a Factory Girl factory that needs to generate a unique name using Faker. Unfortunately, Factory Girl generates duplicates relatively frequently, which causes intermittent test errors. I ...
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2answers
109 views

Ruby object oriented Snakes and Ladders implementation

I'm not a beginner to programming, but I am to programming in OOP (effectively at least). So to learn better I wrote an object oriented game of Snakes and Ladders. For background, see this question. ...
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2answers
90 views

Multifunctional Monty Hall Simulator

Based on this question on math.SE regarding probabilities in variations on the Monty Hall problem, I cobbled up a simulator in Ruby to give myself an introduction to the language. Since this is my ...
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2answers
109 views

Multiples of 3 and 5

Project Euler problem #1: If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples ...