Ruby is a multi-platform, open-source, dynamic, object-oriented, interpreted language created by Yukihiro Matsumoto (Matz) in 1993.
2
votes
2answers
25 views
Client categorisation based on hourly payment
I am currently working on a small internal rating system for clients to be able to prioritise my work based on what client pays best. The input data is the hourly rate they are paying and based on ...
0
votes
0answers
8 views
Polymorphic event notification model in Rails
I have a polymorphic notification model. When user gets a notification he can get on the page of the notifiable to check out what happened exactly. For instance ...
4
votes
3answers
35 views
Two HTTP notification methods
I have two very similar methods, which make HTTP requests, the difference is that one makes PUT and another GET. Is there any proper Ruby way not to repeat the setup code and not to pass the flag ...
1
vote
0answers
12 views
Install ruby using rbenv in bash script
I want to write an automated bash script for installing ruby and rails using rbenv. But I am getting issue of session reload in terminal.
My bash script:-
...
0
votes
0answers
14 views
Converting from a madlib program using hashmaps to using 3 different arrays to hold the noun, verb, and adjectives
Using erb and Sinatra, I need to make an array of each variable that can be added in, [noun], [verb] and [adjective], allowing me to return the number of each there are and create the appropriate ...
-1
votes
0answers
45 views
A long form to collect business information
I have a long form which includes many nested forms. I have tried to use partial but I believe partial is not working, and the object is not being transferred there. Any help with this will be ...
1
vote
1answer
27 views
Refactoring random number generation
As I'm learning Ruby I wrote this little program to generate a "nice" number randomly (like 4747, 6969, etc.).
As I'm currently breaking the "do not repeat yourself" rule, how would you refactor the ...
0
votes
0answers
27 views
Ruby Sort Hash for same value [closed]
I have hash like
hash = {"n"=>5, "a"=>4, "h"=>3, "m"=>3, "y"=>3, "f"=>2, "r"=>2, "i"=>2, "e"=>2, "d"=>2, "s"=>2, "z"=>5}
now i ...
4
votes
1answer
35 views
Generate dyamic 'week of' date range
I was in need of a method to dynamically generate a week range, so that the view reads something like "Week of May 16 - 22" and updates automatically. Here's the helper method I came up with, but I'm ...
4
votes
2answers
91 views
Guess a number, any number, between 1 and 10
I am learning Ruby and would like to know how I am doing as far as writing the actual code.
Please keep in mind that this is my first Ruby script program, but I am trying to learn ruby in a very ...
4
votes
2answers
88 views
Sum of numbers that equal 100
I was asked to find all the numbers that added up to 100 with no duplicates in Ruby. I float between Python, GoLang, and Ruby in a day. I am always concerned if I am doing something in the most ...
0
votes
0answers
18 views
rspec: method mocks on objects returned by activerecord [closed]
If I have a controller that does this:
class FooController
def bar
foo = Foo.find(id)
foo.bar
render text: 'done'
end
end
What's ...
4
votes
2answers
75 views
Alternately taking elements from an array
Given the task of having to return an array that alternately takes elements from two arrays, what would be most Ruby way of completing the task? As of now, I have this code, but it doesn't feel very ...
5
votes
3answers
441 views
The Genetic Code
This question is part of a series solving the Rosalind challenges. For the previous question in this series, see Wascally wabbits. The repository with all my up-to-date solutions so far can be found ...
3
votes
1answer
54 views
Command line based email generation tool
Unfortunately due to my job I will have to leave out some of the information that is created by this generator, however I will be replacing it with another string of information.
I have created an ...
1
vote
1answer
35 views
Recursive categories fetch and view
I have categories and subcategories in my view. The code looks like this
...
1
vote
3answers
61 views
Sort array of hashes with nil values last
I wrote method which sorts an array of hashes by given hash keys. The method should put nil values at the end.
...
3
votes
1answer
55 views
Determining whether a task is active based on many conditions
I wrote a Rails model instance method that checks many separate conditions, and returns a single boolean. It does not employ any nesting of branching structures. Each check has its own comments ...
1
vote
1answer
44 views
Expanding pixels in an image
Custom class Image takes a 2-D array of 0's and 1's upon initialization. Method transform returns a modified array by modifying 0's adjacent to a 1, such that
...
3
votes
3answers
79 views
Wascally Wabbits
This question is part of a series solving the Rosalind challenges. For the previous question in this series, see Mendelian inheritance. The repository with all my up-to-date solutions so far can be ...
3
votes
0answers
58 views
“Ymbirtt vs The Gilded Rose” Kata
The Gilded Rose Kata is a refactoring challenge, in which some frankly disgusting code is thrown at the developer, and they're told to make a small change to it. For reference, the (truncated) ...
1
vote
1answer
33 views
Old and new shouts controllers
I have a photo_shouts_controller.rb and text_shouts_controller.rb which both have almost similar implementations, and I would like to refactor it.
I have implemented a refactoring but I am not too ...
2
votes
0answers
24 views
Stack based esoteric language interpreter in Ruby
For a while now, I've wanted to write a stack-based "Turing-tarpit". This is the perfect excuse to learn Ruby, which I have never used before, so I wrote Brain-flak.
The language only uses these ...
0
votes
0answers
15 views
Ruby written SQL vulnerability pentesting tool
I've wrote a program that scrapes websites for SQL vulnerability, (IT DOES NOT EXPLOIT JUST SEARCHES) I would like some critique on what I've done, is there a way I can write the ...
0
votes
1answer
30 views
Rails create create default database records
In my application I have an accounts model:
class Account < ActiveRecord::Base
belongs_to :user
has_many :invoices
end
The ...
1
vote
1answer
59 views
Conversational bot architecture
I am currently building a small conversational bot, and I am struggling with the architecture. I use Facebook Messenger combined with Wit.ai's API and a Shopify store API. My rails app is the ...
3
votes
2answers
57 views
0
votes
0answers
5 views
Best way to build a JSON API coupled with HTML views in a Rails project [migrated]
I've got a Rails eCommerce project communicating with an iOS app. The iOS app receives JSON data from the Rails back-end, but there's also HTML rendering when a user comes to the project from his ...
2
votes
1answer
62 views
SE-like voting system
I've created a voting system that's similar to Stack Exchange's in a Ruby on Rails web app. It's working great - as far as I can tell, all the edge cases are caught. This is the action to cast a vote. ...
3
votes
3answers
153 views
Check if a store is currently open
This is the dirty bastard of my current code block, and I'm trying to find a way to improve this code for increased readability, but also functionality.
The method checks if the store is currently ...
4
votes
1answer
54 views
Mendelian inheritance
I started out with the Rosalind problems a while back. Turns out it's a great way to learn a new language. I'm still trying to learn Ruby, and while I haven't managed to use regular expressions as ...
0
votes
1answer
34 views
Change non-diagonal surrounding elements in a 2-D array
I'm a beginner working through an exercise on ruby arrays. Given a two-dimensional array with 0's and/or 1's, it should return an array with the non-diagonal surrounding elements of 1 changed to 1 if ...
0
votes
0answers
24 views
Renaming image files based on OCR words
I wanted to rename a large batch of image files, based on a best-guess attempt to OCR words from the file. These are all logos, which generally bear a the name of an organization.
The code presumes ...
4
votes
3answers
98 views
Idiomatic ruby to calculate distance to points on a graph
Can this code be made more like idiomatic ruby using methods such as map or inject?
@random_tour is a variable length array of points on a graph:
...
2
votes
1answer
56 views
Arabic numbers to Roman numerals conversion
The following converts Arabic numbers to Roman numerals.
I decided to factor each digit into its place value, then use a mapping to convert it to its Roman equivalent.
For example, 1997 is factored ...
0
votes
1answer
45 views
Common ancestor in a binary tree
This method finds the common ancestor of two nodes in a binary tree.
Any style suggestions or ways to make it more idiomatic? Is the algorithm correct? Rubocop says the cyclomatic complexity is too ...
2
votes
1answer
53 views
Update record with CSV
I'm using Rails 4.2.5, and I'd like to update existing records with a csv file with two fields: id,category. Where if the category field is blank, it defaults to misc.
Here's an example csv file:
...
4
votes
0answers
31 views
Using dynamic method names in place of case statements
Using Rubocop, pretty much any case statement is caught by the Cyclomatic Complexity cop, often the Assignment Branch Condition and method length cops as well. To get around this, I've been ...
4
votes
2answers
96 views
Optimize the CSV Upload function in Ruby On Rails
The code is working fine however, I would like to fix code after unless and can I store thread ID in the database too? Is there a way to improve performance?
...
0
votes
2answers
46 views
Extracting data from a string
I created a method that takes a string value with a fixed length of 9 characters and extracts three values, house (4 characters), ...
3
votes
0answers
106 views
Google CodeJam 2016 - Ruby - Counting Sheep
https://code.google.com/codejam/contest/6254486/dashboard#s=p0&a=0
I just wrote a small Ruby class to solve the first of the challenges in the G CodeJam. I am not strong at this sort thing so ...
3
votes
3answers
86 views
Finding the number in a list that differs in parity
Given any string with a series of numbers find out which one of the numbers differs from the others in evenness and return its position.
Examples:
...
4
votes
1answer
70 views
Balanced parenthesis in Ruby
I'm solving the "Balanced Parenthesis" problem in Ruby, and I came up with this solution.
...
2
votes
0answers
19 views
ActiveAdmin menu-generating mixin
I've written an ActiveAdmin mixin, such that you can include it and call simple_menu_for Foo, to reduce duplicate code when working with simple models. Here is the ...
5
votes
1answer
53 views
2
votes
2answers
128 views
Algorithm to rotate array elements in Ruby
I wrote this algorithm to rotate elements in an array. It's not very efficient, but it works. It has another disadvantage that it doesn't rotate right (it would be nice to pass it negative steps, for ...
2
votes
1answer
29 views
Order processing
I have recently built a plain old Ruby program using TDD with RSpec to model this. I wanted to get feedback.
Repo
For the company whose application we’re looking at, order processing
looks ...
-1
votes
1answer
31 views
Skipping Google search results that point to certain sites
I have the following code that will skip certain URLs if needed:
...
2
votes
0answers
27 views
1
vote
1answer
71 views
Refactor code to solve the 'Line is too long' error in rubocop [closed]
Method.create(domain_id: domain.id, type_notification: type, message: title, url: url, owner_id: self.user.id)
How can I reduce this line to 80 ?
