Ruby on Rails is an open-source web development framework written in Ruby. If your question code is written in Ruby on Rails, tag with Ruby as the language tag. Many things are defined by convention, freeing you from having to re-invent things to stay productive.

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Rails Grape API Endpoint optional params validation in update

I have the following rails grape api endpoint in the users resource: ...
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1answer
37 views

Checking whether a store is open or not by querying over its business hours

I currently have a method that checks if the store is open. It's working nicely, however on the main page I have quite a few stores. Whom again have different locations. Each of these locations again ...
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1answer
55 views

Rails service for a series of calculations

I'm writing a Rails service in which a series of operations are performed on a record: ...
3
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21 views

Extracting queries from controller to model

I had a complex query in the controller like: ...
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1answer
40 views

Redirecting to the appropriate URL for some type of notification

I have a polymorphic notification model with action attribute. When user clicks on a notification he/she should be redirected to given page the notification refers to through notifiable. What is the ...
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1answer
60 views

Rails Sample for interview

I did a small sample application for an Interview. Since I didn't got accepted I would like your opinion on how to improve it. The aux methods are private. I have a ...
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1answer
58 views

Getting predicted values for a student report form

I have a situation where I need to predict the input values for a form used to create a new model. The model is a "class report" that a teacher submits for a student after their class finishes and the ...
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39 views

ActiveRecord selection, modified by optional parameters

I have an action method in my Rails controller which filters an ActiveRecord model depending on the submitted GET parameters. Rubocop complains that Assignment Branch Condition Size is too high: ...
2
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1answer
156 views

Weight-loss calculator

I have a table that holds a user's weight for specific days. In my weights_controller.rb index action I can show these weights - no problem. What I also want to ...
2
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1answer
65 views

Rails validating enum

The Ruby on Rails framework doesn't allow you to validate enums submitted through a form in any sane manner. Evidently, enums are meant to be used to maintain internal application state, and are not ...
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1answer
92 views

Merging two hashes with the mean values of each key if both hashes exist

There are two methods, hash1 and hash2, that return hashes or nil. The hashes have the same ...
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3answers
50 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 ...
2
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1answer
19 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 ...
3
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31 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:- ...
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43 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 ...
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53 views

Displaying information about a ticket purchase

My code works perfectly, however, I know my approach isn't best practice practice. I would appreciate the effort of anyone who tries to explain in details on how I could refactor this code using ...
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2answers
39 views

Recursive categories fetch and view

I have categories and subcategories in my view. The code looks like this ...
4
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1answer
61 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 ...
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1answer
37 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 ...
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2answers
34 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 ...
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1answer
77 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 ...
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2answers
61 views

Find existing session

I have this method in my rails app: ...
3
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1answer
65 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. ...
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31 views

Get properties from all children in a recursive SQL structure

In our product, Company is a model that can have many Companies belonging to it; so some Companies are parents, some are children, and many are both. We have a ...
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3answers
157 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 ...
2
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1answer
54 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
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2answers
103 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? ...
2
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0answers
20 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 ...
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27 views

Custom bang! method and Rails validation

I have a model called booking. ...
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18 views

Simple app which allows to create posts and delete them by a password

Whole thing you could find here There is no validation, i know. Main page: ...
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1answer
79 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 ?
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2answers
95 views

Error-testing be with cucumber/capybaraweb

I'm working on writing tests for a rails application using cucumber and capybara. I have a scenario for a user editing a post, and making it invalid. The scenario looks like this: ...
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1answer
23 views

Mini Test testing save on one and many trips

I know there is a balance to be struck between writing dry code and damp code but I have the feeling that this is a bit too repeative. Is there a terse yet self explainatory way to rewrite these tests?...
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2answers
42 views

Ruby method that is validating the payload received

What is a cleaner and/or clearer way of writing the following method ...
2
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1answer
42 views

Count associations in a Ruby model

I'm trying to figure out if there's a better way to run the code below. Basically Course is an association of Student and ...
2
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3answers
78 views

Notify owner of post and other commenters

I have a rails4 app. When a user comments on a post it should send a notification to all the guys who commented on the post and to the post creator. I have a working method in the controller, but it's ...
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2answers
83 views

Controller method to manage SMS subscriptions

I have a huge method in my controller that is not DRY and just could use some general TLC. I'm new to ruby and I have not refactored my own code before, only contrived code you find on tutorials. ...
2
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1answer
37 views

Changing a user status flag, with validation

I am writing a function which on update of any attribute of model sets the status of variable is_kyc_verified to false. Here is the code of the User model and the ...
4
votes
1answer
115 views

REST API with Ruby on Rails and ReactJS

I'm currently working on building a simple REST API using Ruby on Rails. I noticed that a lot of the things I did were a bit redundant, especially the models. Just to clarify: I want this to be a REST ...
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42 views

Responsive photo gallery using Flickr API

This began as just a simple sidebar widget and evolved into what you see here. I'm pretty happy with the results but the photos take a long time to render and sort out on the page. Is this mostly ...
3
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1answer
37 views

Simpler method to find users in child categories

I am using the ancestry gem to organize my post categories tree. I have 8 parent categories, and they all have many child categories. To retrieve an array of child categories, I use: ...
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0answers
30 views

Generating a Postgres query dealing with creating a time series

I want to sum the number of my published publications model in a given interval and return a time series. (related SO) The main challenge is that I want the code to respect the time zone passed to it....
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0answers
8 views

Robustly send notifications from multiple processes

We have Notifications stored in a notifications table, which is worked on by multiple background workers. The notifications table has these relevant attributes: id (primary key, unique) send_at (...
6
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1answer
72 views

Seeding a database

I'm seeding my database with a relatively complex data model. Constraints: Every meal has exactly one main dish (marked as is_main in intermediate table). Here is ...
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1answer
49 views

Removing folders from my rails app with rake

I'm trying to remove the tmp/letter_opener folder. Everything works fine, just wondering if there's a better way to write it. My next step is to write some tests, ...
5
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3answers
234 views

Ruby method that returns an age from a date of birth

I have a method on my user model to calculate the user's age and return a human readable string. My user's can be between 1 month old and above so the returned string is different depending on if the ...
4
votes
1answer
102 views

Displaying a Google map with multiple complex markers and unique info windows

This JavaScript file is part of a large Ruby on Rails app. Any feedback is appreciated. Update 3.7.16: as per @Jonah's suggestion, here's a description of the code's purpose: I've built a bus-...
2
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2answers
50 views

Shipping address validations

In my journey of learning Rails, I'm wondering if I should test model validations. If so, is this a correct way to do it? ...
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1answer
45 views

Updating an auto-generated invoice (future) when current plan changes

I've built-out a mechanism to go and find an auto-generated invoice and update it with new information when a plan is changed or if users are added to the plan for the current billing period. It will ...