Category "ruby-on-rails"

How to add jemalloc to existing rails server using rvm?

how to add jemalloc in a working ruby on rails server?We installed ruby using rvm. Rails version:5.2 Ruby version:2.5.1 I tried ruby -r rbconfig -e "puts R

Google keeps deleting app password (Rails)

I'm using rails and mailer. Whenever user signs up, the user gets an email confirmation. In the gmail account (business) I've set up 2-step authentication and a

How to use parallel_tests in github actions

I'm trying to use parallel_tests in my github action to run my test suite but I was not able to find a proper solution. The official docs has one but it is for

Rails + Postgres migration - why am I receiving the error "PG::UndefinedFunction: ERROR: function gen_random_uuid() does not exist"?

One of my Rails migrations uses a uuid as the primary key. The Postgres extension gen_random_uuid() should solve this issue, but I continue to get the error aft

How to merge duplicates in a column in Ruby on Rails?

I have this filter here for sign name. What I want to do is if I have more than one name of the sign to merge the content together Check the image attached. I h

Rails render error code with jsonapi-rails

I want to render error code property, as JSON API specification describes, with jsonapi_errors method in jsonapi-rails gem. How could I set the code property in

Rails: rendering a partial for a nested resource

# routes.rb resources :topics do resources :bookmarks, except: [:index] end The view files for my Bookmark model live in app/views/topics/bookmarks: I re

How do you send JSON data in a rails-ujs Rails.ajax POST call (not using jQuery)?

I have a React client app that needs to talk to a Rails API. I want to use the rails-ujs method Rails.ajax. For example: Rails.ajax({ type: "POST", url: "

Ruby On Rails - NoMethodError: undefined method `[]' for nil:NilClass

I'm trying to run on a new computer some ruby code and I receive the following error (rails db:migrate --trace) ** Invoke db:migrate (first_time) ** Invoke db:

rails generated CSV file can't be downloaded

I'm trying to export my database to CSV file and download it but it doesn't download. I have a form with 2 different actions, Export to CSV and Export to JSON I

Is it OK to specify a schema in `table_name_prefix`?

TL;DR: Is it OK to specify a schema in table_name_prefix? We have a large Rails application that is not quite a traditional multi-tenant app. We have a hundred

Line break when combining image_tag and text in Rails navbar

I want to combine a logo and the brandname as text in my bootstrap based navbar. The problem is I can't figure out why there is a line break and the text not on

Heroku error: "key must be 16 bytes" but the key I have inputted is 16 bytes

I am launching to Heroku for the first time and I am getting the error "ArgumentError: key must be 16 bytes". I have run rails credentials:edit to generate a

How do I get the size of a ruby object in mb in Rails?

I want to query an ActiveRecord model, modify it, and calculate the size of the new object in mb. How do I do this?

ArgumentError: wrong number of arguments with `bundle exec rake db:migrate`

I'm trying to install Discourse in macOS for development, following the steps mentioned here: https://meta.discourse.org/t/beginners-guide-to-install-discourse-

Rails, uninitialized constant Faraday::FlatParamsEncoder in sunspot solr

I'm using rails 4 and sunspot solr, when I pass the params to the controller for performing the search, i'm getting uninitialized constant Faraday::FlatParamsEn

How to use stimulus components with rails import maps

I want to include this stimulus component into my brand new rails 7 app: https://www.stimulus-components.com/docs/stimulus-dropdown When I follow their setup ap

net::ERR_INCOMPLETE_CHUNKED_ENCODING nginx

I have 2 RoR web applications hosted on 2 different servers. For one particular page, the request is served from the second application. For rest of the pages,

Divider in divs with Tailwind

I have this now <div class="w-2/3"> <h2 class="text-2xl font-semibold">Ordered Items</h2> <table class="w-full border-collapse"> .....

ActiveModel serializer inheritance

say I have this serializer class FooSerializer < ActiveModel::Serializer attributes :this, :that, :the_other def this SomeThing.exp