Ruby on Rails is an open-source web development framework optimized for programmer happiness and maintaining sustainable productivity. Many things are defined by convention, freeing you from having to re-invent things to stay productive.

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Which is the convention in Rails to perform calculations and display the results?

So I'm working on a personal project on Rails to learn more about this framework, and I wanted to add a feature in which the user choose a particular record from the view, and after some calculations ...
2
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1answer
124 views

Any way to use VoltDB in rails app?

I've been curiously looking at VoltDB and one year ago I have even seen a gem that was providing Ruby connection to VoltDB. I have checked today again and it seems gone. I'm planning to go through ...
0
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1answer
45 views

Incorporating web designer's into a rails app

I have a designer who has great knowledge of HTML, CSS and JavaScript (Not jQuery or AJAX though). He gives me his designs in those files and I have to incorporate it into my apps. The site is not ...
0
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1answer
87 views

Change of session/context in rails application

I'm currently developing an app in Ruby on Rails with a social network side, and have several different models including users, groups and pages. I would like to allow users to be group/page admins, ...
3
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2answers
189 views

S3 image urls in database

I have an application where users will be able to upload multiple images for one Product (via something like Ryan Bates nested fields, so you'd click "Add Image", and a file upload would appear on the ...
49
votes
6answers
5k views

Should Latin-1 be used over UTF-8 when it comes to database configuration?

We are using MySQL at the company I work for, and we build both client-facing and internal applications using Ruby on Rails. When I started working here, I ran into a problem what I had never ...
4
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5answers
1k views

How can I move from Java and ColdFusion to Ruby on Rails? [closed]

Currently I work with ColdFusion 9+ and some Java in a Windows environment. Prior to ColdFusion, my background was in Java and JSP. I'm considering a move towards Ruby on Rails, as I think it would ...
0
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0answers
19 views

Database integration of Rails and Laravel apps

I have some very small apps on a VPS running ruby on rails and a co-worker also have some of his own apps running on laravel at another VPS. So far we dont needed to share any data among the apps, but ...
0
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1answer
121 views

Is there any harm in using amazon AWS as a development environment? [closed]

What modifications do I need to make to my workflow, and which skills do I need to learn in order to develop with Ruby On Rails on a Linux cloud server on Amazon Web Services (AWS)? In particular, I ...
0
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0answers
41 views

What's the best practice for adding a lot of attributes to a Rails model?

So, I'm building an API wrapper gem that works with Spree's Product model. The API provides extensive customization of the data you send to it. I would like a user of the gem to be able to take ...
2
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7answers
6k views

How much Ruby should I learn before moving to Rails? [closed]

Just a quick question.. I can never get a definitive answer when googling this, either. Some people say you can learn Rails without knowing any Ruby, but at some point you'll run into a brick wall and ...
2
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3answers
280 views

Questions for Architecture with Ruby and Java [closed]

I am in the research phase of a project that needs to make use of 3rd party libraries that are in Java so I am stuck using Java to at least a small degree. I am considering implementing Ruby as the ...
0
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1answer
112 views

ActiveRecord equivalent in Java [closed]

My question is fairly simple.. What is the closest ORM to ActiveRecord that I'd be able to find for Java? In other words, in terms of thinking patterns and knowledge, with limted development time, ...
0
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2answers
101 views

Is it possible to find a mentor online? [closed]

First, after asking my acquantances and after reading the previous answers on this topic, I realised that people sometimes confuse the concept of mentor with teacher. In short, teachers share ...
5
votes
5answers
12k views

Real-time chat in Ruby on Rails without owning a server

I'd want to implement a Real-time chat for my Rails app but I can't really host the server which handles the sockets. I've tried Faye but it needs a server. I've also heard of pusher but it's limited ...
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1answer
66 views

Is obsolete to study older versions of Ruby and RoR? [closed]

I want to study Ruby and RoR for some things I'll have to make, but almost every book, videos or any kind of source I find is outated, where the most current book I could find (link here) is one of ...
3
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1answer
2k views

What is a closure and how is it implemented in Ruby?

In the context of the Ruby programming language, what is a closure and when do you use one? What are the uses for it in Rails?
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1answer
83 views

PHP vs ROR for AJAX and responsive design [closed]

I'm in the planning phase of making a website for calculating various mathematical problems, as a school/sparetime project with a couple of friends. We're gonna start off with implementing a "right ...
1
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0answers
79 views

Rendering head :ok vs head :no_content. Any good practices?

Whenever I take in data and do something like delete a post, etc. I generally return head :no_content. For example: def destroy @post = Post.find_by(external_id: params[:post_id]) @post.destroy! ...
1
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1answer
57 views

How do rails project know about rake tasks from other repositories

We have a rake task called db:sanity_check which exists in a 'core' repo. Other repositories that we have also show this rake task. But they do not define the rake task. It 'comes' from core' How ...
2
votes
2answers
167 views

Where to load data for things like a sidebar in MVC frameworks?

This seems extremely basic, but I've read a lot of related questions and haven't found a proper answer. Using Ruby on Rails or other similar MVC framework, how am I supposed to load data that is ...
2
votes
3answers
540 views

Sharing business logic between server-side and client-side of web application?

Quick question concerning shared code/logic in back and front ends of a web application. I have a web application (Rails + heavy JS) that parses metadata from HTML pages fetched via a user supplied ...
0
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0answers
71 views

How to scrub Twitter and Facebook posts for many users

I'm making an Rails app that in theory should scrub new posts from the users facebook and twitter accounts and put them in a timeline for an analyst to analyze and determine if they are good or bad ...
1
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2answers
176 views

Architecture to handle service concurrency on resources exposed via REST API [closed]

REST API frameworks like Python Eve handle concurrency control via an entity tag. This ensures that several clients which loaded the same resource will not overwrite the changes of each other, because ...
1
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1answer
119 views

Should I be writing feature or request specs?

I've been writing model specs for a while now and I'm gradually moving towards integration testing. Right now, I'm looking at the best way to test the output of my ActiveAdmin dashboard but I'm unsure ...
1
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1answer
121 views

Should I use expect or should when writing RSpec specs? [closed]

Please can someone explain to me how I should go about deciding whether to use expect or should syntax for my rspec examples. From my understanding we should no longer be using the 'should' syntax. ...
1
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1answer
303 views

How can I estimate hosting costs on Heroku into the hundreds of thousands of users?

Heroku's pricing page is clear when looking at what I'm paying and what I'm getting, but it is not helpful for predicting future costs of an app. If I have an app that is still being developed, how ...
5
votes
2answers
466 views

Start reading Ruby (on Rails) code [closed]

I'm an experienced developer which quite some experience in meta programming. I just found my way to Ruby and want to understand more of Rails (and related) project internals. Even if I understand the ...
0
votes
1answer
64 views

Calculate which quantity packages to use based on quantity of bookings

In my app, many appointments can be booked for activities. Each activity has many price packages with a price and a quantity. On showing the cart, I need to work out what combination of packages ...
0
votes
1answer
54 views

Ruby on Rails application interfacing with a Datamax barcode printer [closed]

I am trying to find a standalone way to interface with a Datamax M-Class Mark2 label printer through a Ruby on Rails application. I currently have a solution that is working, which i use javascript to ...
0
votes
1answer
156 views

Refactoring a Single Rails Model with large methods & long join queries trying to do everything

I have a working Ruby on Rails Model that I suspect is inefficient, hard to maintain, and full of unnecessary SQL join queries. I want to optimize and refactor this Model (Quiz.rb) to comply with ...
2
votes
0answers
116 views

Splitting up a Rails/Ruby app onto multiple servers

We recently moved a large application to two machines, both running the same codebase. I. Machine A Web server for public facing application Receives web hook call backs from our ESP Handles a ...
0
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0answers
23 views

An efficient + extendable way to store/reference a normalized set of “causations”?

I'm looking for a good way to define and store references to a normalized set of "causations". I have a well-defined set of reasons (short, descriptive strings) why certain objects are created and ...
2
votes
1answer
309 views

Rails Google Cloud Messaging with heroku

I'm looking at using GCM to send notifications from my rails app to an Android app. The getting started guide says: In the resulting configuration dialog, supply your server's IP address. I'm using ...
1
vote
1answer
30 views

A container only assets in Rails

I have multiple segmented Rails apps that are connected to each other: App A App B App C While I try to keep the design, such as header and footer, to look similar, but each app has its own ...
10
votes
5answers
4k views

Are RSpec and Cucumber really worth it?

I'm a quite new programmer to Rails (about a year) always trying to discover new gems, new ways of thinking, I just love this framework. The only thing that's kind of disturbing me is testing. I know ...
1
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2answers
237 views

Need advice on design in Ruby On Rails

For personal educational purposes I am making a site for a conference. One of the object that exist in a conference is a session, which has different states and in each state it has slightly different ...
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votes
1answer
74 views

Web app that runs other applications? [closed]

I am trying to write a web application that interacts with a service that would run scripts at the system level. Something like a website that you can schedule a job, the service will run the job with ...
1
vote
0answers
109 views

Serialized values or separate table, which is more efficient?

I have a Rails model email_condition_string with a word column in it. Now I have another model called request_creation_email_config with the following columns admin_filter_group:references ...
2
votes
0answers
89 views

Do Rails Join Models Get Controllers?

I have a rails app where my users can buddy up with other users. Since that relationship can have a status (approved/rejected/pending), I decided to go with a join model (UserRelationship) so now I ...
2
votes
2answers
289 views

Is is OK to use a non-primary key as the id in a rails resource?

I am getting ready to set up a resource for some new api calls to my rails application. I am planning on calling the resource devices ie resources :devices This is going to represent android ...
-1
votes
2answers
75 views

Embedded Model Designing — top down or bottom up? [closed]

I am trying to learn RoR and develop a webapp. I have a few models I have thought of for this app, and they are fairly embedded. For example (please excuse my lack of RoR syntax): Model: textbook ...
1
vote
1answer
68 views

How to Structure a Trinary state in DB and Application

How should I structure, in the DB especially, but also in the application, a trinary state? For instance, I have user feedback records which need to be reviewed before they are presented to the ...
1
vote
2answers
522 views

Inspecting the model in a Rails application

I am learning some Ruby on Rails, and am a newbie. Most of my background is in ASP.net MVC on the back end. As I play with a basic scaffold project, I wonder about this case: you jump into an ...
5
votes
5answers
2k views

What is a practical way to debug Rails?

I get the impression that in practice, debuggers are rarely used for Rails applications. (Likewise for other Ruby apps, as well as Python.) We can compare this to the usual practice for Java or ...
1
vote
1answer
98 views

Where does Rails get it's datetime for creating records?

I have a rails app with a data model called 'jobs' and i'm faced with a critical design choice crossroads. I don't know enough about Rails and it's inner workings to be able to say for sure what I ...
63
votes
16answers
7k views

How much freedom should a programmer have in choosing a language and framework?

I started working at a company that is primarily C# oriented. We have a few people who like Java and JRuby, but a majority of programmers here like C#. I was hired because I have a lot of experience ...
4
votes
3answers
2k views

How can web development bootcamps deliver on their promise? [closed]

I came across the concept of web development bootcamps, these 9-10 week intensive crash courses claim to teach beginners web development and help them get 80k starting salary jobs. Many of you might ...
0
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2answers
263 views

help me understand Rails and attributes as class methods

This is from the Hartl Rails tutorial. We are automatically logging in a user in the process of creating that user with a callback to #create_remember_token. It works great but there are some things, ...
0
votes
1answer
277 views

Rails engine testing - use dummy app or real parent app?

I'm using Rails engines to break up a big app into smaller pieces. The parent app mostly handles users and authentication. In one of my engine tests I want to log in a user before each test. How ...